NOT FOR BIDDING PURPOSES

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2 TABLE OF CONTENTS LEGAL SECTION NOTICE INVITING BIDS... INSTRUCTIONS AND INFORMATION TO BIDDERS... PROPOSAL... BIDDING SHEET SCHEDULE... EXPERIENCE AND QUALIFICATIONS... BIDDER'S REFERENCES... DESIGNATION OF SUBCONTRACTORS... NONCOLLUSION AFFIDAVIT... AGREEMENT... WORKERS' COMPENSATION CERTIFICATE... PERFORMANCE BOND FORM... PAYMENT BOND FORM... MAINTENANCE BOND FORM... WORKERS' COMPENSATION INSURANCE... PUBLIC LIABILITY INSURANCE... Articles STANDARD SPECIFICATIONS GENERAL SPECIFICATIONS (Yellow Section) 1. Definitions 1 2. Terms 3 3. Work to be Done to the Satisfaction of the District 4 4. Satisfaction of District 4 5. Engineer to Direct the Work 4 6. Compliance with Contract Documents 4 7. Precedence of Contract Documents 4 8. Interpretation of Specifications 5 9. Drawings Drawings Required of Contractor 5 11 Shoring Plan 6 12 Bonds Workers' Compensation Insurance Public Liability and Property Damage Insurance Permits, Licenses and Fees Progress Schedule and Order of Completion Laws and Regulations 8 Page I II III IV V VI VII VIII IX X XI XII XIII XIV XIV i

3 Articles Page 18. Licensing of Contractors Contractor's Legal Address Subcontracts, Assignments Antitrust Claims Fair Employment Practices Wages, Hours, Apprentices Certified Payroll Submittals and Cost Data Travel and Subsistence Pay Guarantee Maintenance Bond Reasonable Assurances 15 THE WORK - GENERAL 29 Work Included Work and Material Quality Responsibility of Contractor Contractor to Supply Sufficient Labor, Equipment and Material Construction Plant, Equipment and Methods Cooperation Inspection Lines, Grades, Measurements and Surveys Line and Grade Changes Commencement of Work Notice of Commencement/Cessation of Work Changes and Extra Work Extra Work Force Account Work Acceptance of Work Work Beyond Completion Date Does Not Waive District's Rights Termination of Contract Cancellation of Contract Changed Conditions and Hazardous Wastes Protests Claims 25 CONSTRUCTION 50. Use of Improvement During Construction Safety Contractor's Office at the Work Site Contractor's Superintendents or Foremen Contractor's Employees Use of Drugs Night and Weekend Work Overtime Work Protection of Work, Persons and Property Against Damage 30 ii

4 Articles Page 59. Protection of Existing Facilities, Utility Relocation Illumination of Work Traffic Control Road Accessibility Public Inconvenience Drainage Protection Dust Abatement Hauling Over City Streets, County Roads and All Highways Clean Up Construction Access 35 MATERIAL 69. Material to be Obtained from the District Responsibility for Material Salvage of Material Samples and Tests of Material and Work Defective Material and Workmanship Patents Material Equivalence Material Safety Data Sheets (MSDS) 38 PAYMENT AND TIME 77 Progress Payments Retention of Sums, Charges Against Contractor Final Estimate and Payment Work to be Done Without Direct Payment Payment for Increased or Decreased Quantities Liquidated Damages for Contractor's Delay Method of Computing Liquidated Damages Contractor to Serve Notice of Delays Extensions of Time Unavoidable Delays Contractor Investigations Smoking Communication Storage of Materials, Equipment and Vehicles USA Notification and Utility Field Meeting Compliance with Environmental Laws Tests Sanitation District Harassment Policy Dispute Resolution 45 Alphabetical Index of General Requirement Articles 47 iii

5 Division TECHNICAL SPECIFICATIONS Page Division 1 General Requirements Section SPECIAL PROVISIONS Section MEASUREMENT AND PAYMENT Section CONSTRUCTION SUBMITTALS Section CONTRACT MATERIALS Section CONTRACT CLOSEOUT Division 2 Site Construction Section EARTHWORK Section ASPHALTIC CONCRETE PAVING AND RESURFACING Section CATHODIC PROTECTION MAGNESIUM ANODES Section DISTRIBUTION PIPING SYSTEM Division 3 - Concrete Section MINOR CONCRETE Section CONTROL DENSITY FILL Division 9 - Finishes Section FIELD APPLIED TAPE COATING SYSTEMS Division 18 - Environmental Section ENVIRONMENTAL PROTECTION APPENDICES A. District-Observed Holidays B. Exhibit A - Change Order Form Exhibit B - Contractor's Daily Labor and Equipment Report C. Encroachment Permits D. Submittals iv

6 NOTICE INVITING BIDS Contract No.1900 Job No. D19025 Sealed bids for the Bolinas Avenue Service Improvement Project will be received at the Office of the Manager of Engineering, Marin Municipal Water District, 220 Nellen Avenue, Corte Madera, CA 94925, until 10:00 a.m., on February 12, 2019, at which time they will be publicly opened and read in the Board of Directors' room by the Secretary or a designated representative. This contract is for furnishing labor and equipment for the installation of 50 feet of 6-inch welded steel pipe and the renewal of 51 service laterals with fittings and appurtenances. The work to be done is located in the Towns of Ross and San Anselmo within the County of Marin, California. The Contractor performing work under this contract shall possess a class A or C-34 Contractor's license which is valid in the State of California at the time the contract is awarded. No contractor or subcontractor may be listed on a bid proposal for a public works project (submitted on or after March 1, 2015) unless registered with the Department of Industrial Relations pursuant to labor Code section (with limited exceptions from this requirement for bid purposes only under Labor Code section (a). No contractor or subcontractor may be awarded a contract for public work on a public works project (awarded on or after April 1, 2015) unless registered with the Department of Industrial Relations pursuant to Labor Code section This project is subject to compliance monitoring and enforcement by the Department of Industrial Relations. The prevailing rate of wages in the locality in which work is to be performed has been ascertained by the District and published under the provisions of Section 1773 of the California Labor Code. For the most current prevailing wage rates the Contractor may visit the state of California Prevailing Wage Determinations website at Copies of the prevailing wage rates are also on file and available at the Office of the Manager of Engineering at 220 Nellen Avenue, Corte Madera, and in the office of the Marin County Department of Public Works, Civic Center, Room 304, San Rafael, California. It shall be mandatory upon the Contractor to whom the contract is awarded and upon any subcontractor under him to pay not less than the said prevailing wage rates to all workers employed by them in the execution of the contract. On this contract, eight hours shall constitute a legal day's work. Work beyond eight hours shall be paid at a rate not less than one and one-half times the prevailing rates. Wage rates for Sundays and holidays shall be paid at a rate not less than two times the prevailing rates. The holidays upon which such rates shall be paid shall be all holidays recognized in the collective bargaining agreement applicable to the particular craft, classification or type of workers employed on the project. Unless otherwise specified, proposals will be considered for the complete job only. In accordance with the Instructions to Bidders, all bid documents must be completed on forms supplied with the contract specifications. Each Bidder is requested to return the entire specification booklet. The Bidder must include a certified check, cash, cashier's check or bid bond executed by an admitted surety authorized by the California State Department of Insurance to transact business in California as a guarantee that the Bidder will, if successful, promptly execute a satisfactory contract and furnish bonds as required by these specifications. The certified check, cash, cashier's check or bid bond shall be not less than ten (10) percent of the total amount of the bid and shall be payable to the Marin Municipal Water District. I (without D&B )

7 Notice Inviting Bids In compliance with Section of the Public Contract Code, the Successful Bidder may, at his expense, choose to exercise one of the following options regarding retentions: (1) to deposit securities (under District control) equivalent to the retention amount normally withheld by the District; or (2) to execute an escrow agreement and have the District make retention payments directly to an escrow agent; or (3) to execute a retention agreement indicating that normal retention will be deposited in a joint account under District control. If an escrow agreement for security deposits is used in lieu of retention, it shall be in a form substantially similar to that specified in Public Contracts Code Section If any of the above options are chosen, the District will withhold no retention on progress payments. District control of securities or accounts will be released in the same manner as release of normal retention funds as indicated in the general specifications. Securities eligible for investment shall include those listed in Section of the Government Code or bank or savings and loan certificates of deposit. The Bidder's attention is drawn to the General Specifications section regarding Dispute Resolution. This section provides any disputes or claims between the District and the Contractor are subject to mediation, and then if still unresolved, at the sole election of the District, to binding arbitration. The Bidder's attention is also called to Marin Municipal Water District Code Sections through which permit the District to disqualify a Contractor from bidding on future contracts with the District if the contractor fails to comply with the rules and regulations specified in the District's code or the requirements for performance specified in this contract including submission of false claims to the District. BEFORE BIDDING: Bidders should contact their insurance brokers to verify that their insurance meets all insurance requirements of the contract and that their broker will provide a completed MMWD Additional Insured Endorsement. Bidders should provide pages XIV, XIV-a and XIV-b of the contract to their insurance brokers for reference. Proposals must be submitted in a sealed envelope addressed to the attention of the Manager of Engineering, with the words "Bolinas Avenue Service Improvement Project-CONTRACT NO. 1900, February 12, 2019 Bid date," clearly marked on the outside of the envelope. Specifications may be purchased at either the Engineering Records Department, Marin Municipal Water District, 220 Nellen Avenue, Corte Madera, CA 94925; by mail at the noted location; by phone at or online at upon receipt of a $25 non-refundable fee plus postage (cash, check, Master/Visa Card, or PayPal (for website orders only). Bidders who (desire a District representative to accompany them on their first visit to the proposed work site or) have questions regarding the project should contact Alex Anaya at The District reserves the right to reject any and all bids and to waive any irregularities in said bids. Stephanie Eichner-Gross, Secretary Board of Directors I-a (without D&B )

8 INSTRUCTIONS TO BIDDERS The Bidder's attention is called to the forms and documents listed below which must be executed in full as required. Signature by the Bidder indicates that the information provided by the Bidder is accurate. The Bidder is requested to return the entire specification booklet with his bid. I. TO BE EXECUTED AND SUBMITTED WITH THE BID (OTHERWISE THE BID MAY BE REJECTED AS IRREGULAR) A. Proposal Signature Sheet (Page III of this Contract) To be filled in completely and signed by Bidder. All bidders are required to present with their bid a complete copy of a license from the Contractors' State License Board, qualifying them to bid on this job. B. Bidding Sheet Schedule (Page IV of this Contract) To be filled in completely and signed by Bidder. C. Experience and Qualifications (Page V of this Contract) To be filled in completely and signed by Bidder. D. Bidder's References (Page VI of this Contract) To be filled in completely and signed by Bidder. E. Designation of Subcontractors (Page VII of this Contract) To be filled in completely and signed by Bidder. F. Noncollusion Affidavit (Page VIII of this Contract) To be filled in completely and signed by Bidder. G. Bid Guarantee A bid guarantee in the amount of ten (10) percent of the bid amount must accompany the bid. The proposal guarantee must be in the form of one of the following: cash, a cashiers check made payable to District, a certified check made payable to the District, or a bid bond executed by an admitted surety insurer authorized by the California State Department of Insurance to transact business in California made payable to the District. Note that all bid guarantees will be retained until a contract is executed for the work. Bids may be withdrawn by the Bidder prior to the time fixed for opening of the bids. No proposal may be withdrawn after the hour fixed for opening bids without rendering the accompanying certified check, cashier's check or bid bond subject to retention as liquidated damages in like manner to the case of failure to execute the contract after award, as provided in the contract documents herein. Negligence on the part of the Bidder preparing his proposal shall not constitute a right to withdraw the proposal subsequent to the opening of proposals. After the opening of bids, the District shall award the contract within 30 days during which time no bids may be withdrawn. II (without D&B )

9 II. TO BE EXECUTED BY THE SUCCESSFUL BIDDER ONLY (BEFORE THE START OF WORK) Within seven (7) calendar days after the date on the "Award Documents and Requirements" letter, the Contractor shall execute (3) three copies of the contract, return them to the District and complete and submit the following documents and requirements: A. Performance Bond, Payment Bond and Maintenance Bond (Pages XI, XII and XIII of this Contract to be used only if copies of the bonds from the Surety are not attached) Two bonds are to be executed by the Successful Bidder and admitted surety insurers authorized by the California State Department of Insurance to transact business in California after the award of the contract by the Marin Municipal Water District; one bond to guarantee the faithful performance of the contract, a second to guarantee payment of wages. Each of said bonds is to be in the amount of 100% of the total amount of the bid. Combination bonds may be supplied and will be accepted if in a form satisfactory to the District. A third bond, a Maintenance Bond in the amount of 25% of the final contract price, shall be executed and in effect for a two-year period as indicated in the District Standard Specifications. Normally, the Maintenance Bond need not be executed until immediately before Notice of Completion is issued. B. Proof of Workers' Compensation Insurance, Public Liability Insurance and Automobile Insurance (Page XIV of this Contract) The successful Bidder shall submit proof to the District that he has satisfactory insurance coverage provided either by insurers admitted to do business in the State of California with at least an A.M. Best rating of A or by non-admitted insurers with at least an A.M. Best rating of A and as required by Articles 13 and 14 of the District Standard Specifications. In addition, the following specific insurance requirements shall be met: 1. Automobile Insurance. 2. Waiver of subrogation endorsement in favor of the District. 3. Public Liability coverage of not less than $1,000,000 per occurrence combined single limit. Each such policy shall be endorsed with the Additional Insured Endorsement form on Page XIV-b. 4. Adequate Workers Compensation Insurance coverage and terms. C. Shoring Plan When applicable, Contractor shall submit a shoring plan for review and acceptance (see Article 11 of the General Specifications). II-a (without D&B )

10 D. Workers' Compensation Certificate (Page X of this Contract) To be filled in completely by the Successful Bidder. E. Agreement (Page IX-a of this Contract) To be signed and sealed by the Successful Bidder. Upon satisfactory execution of the contract and determination of insurance and bond acceptability, the District will provide the Contractor with a copy of the fully executed contract and a "Notice to Proceed". II-b (without D&B )

11 INFORMATION AND INSTRUCTIONS FOR BIDDERS 1. BIDDER MUST MAKE THOROUGH STUDY AND INVESTIGATION The Bidder must familiarize himself with the project by thorough personal examination of the proposed work site(s), by due consideration of the specifications and drawings, and by use of any other means that may be necessary to determine the following: a. The actual conditions and requirements of the work; b. Any unusual difficulties that may be encountered in the prosecution of the work; c. The character and respective amounts of all classes of labor and material which the contractor may be required to furnish in order to complete all or any part of the work; and d. All circumstances and conditions affecting the work or its cost. The Bidder's proposal must include any and all expenses he may incur in order to complete the work stipulated under the proposed contract. No test boring results, test sampling results or cost estimates supplied by or for the District, are intended or shall be construed as a warranty or representation of any fact. Such information has been gathered for the District's use, and is made available to Bidders merely as a courtesy. Any failure of the Contractor to acquaint himself with all the available information concerning the above shall not relieve him from responsibility for estimating properly the difficulties or cost to successfully perform the work. 2. UNDERSTANDING OF CONTRACT DOCUMENTS By submitting a bid, the Bidder acknowledges that he understands each and every part of the contract documents. His submittal also certifies that he has performed a thorough study as indicated in Article 1 (above) and he understands thoroughly the intent of all parts of the contract documents and the nature of the work. As a result, the Bidder agrees, if selected as Contractor, that he will not hereafter make any claim for compensation, extension of time or other allowance of any sort, based upon or arising out of any alleged misunderstanding by him of any part of the plans, specifications or the physical conditions existing at the construction site. The Bidder shall, upon discovering any error or omission in the contract documents, immediately call it to the attention of the Engineer. 3. DESCRIPTION OF BID ITEMS The Bidder's attention is directed to the fact that full work requirements are set forth in the Bid Item Descriptions and the Technical Specifications, which indicate the specific and detailed work to be performed under each of the individual work items shown on the Bidding Sheet Schedule. In certain cases, requirements set forth in the Bid Item Description may add to or supersede the information set forth in other sections of the General Specifications. In such event, the requirements set forth under the Bid Item Description shall take precedence over a general requirement and become a contract requirement. II-c (without D&B )

12 4. GENERAL CONDITIONS OF BIDDING All bid documents must be completed on forms supplied with the contract specifications. The Bidder must return the entire specification booklet to the District in a sealed envelope, which is addressed as indicated in the Notice Inviting Bids. Proposals will be received at the Office of the Manager of Engineering, Marin Municipal Water District, 220 Nellen Avenue, Corte Madera, California 94925, at any time up to the date and hour named in the published call for bids. Any bids received after that time will be returned to the bidder unopened. Bids having any erasure or interlineation may be rejected by the District. Any changes on the Bidding Sheet must be initialed by the Bidder or his authorized representative. Failure to do so may result in bid rejection. Statements or communications accompanying bids which serve to qualify or condition bids (except as provided for in the Notice Inviting Bids) may be disregarded by the District in making contract awards. Contract awards shall be made without regard to added conditions unless the statement or communication is expressly mentioned and accepted in the resolution of award. The District may, at its option, disqualify any bid containing such statement or communication. The District may also waive any irregularity in any bid. 5. SUBSURFACE INFORMATION Any data shown on the drawings, or communicated to the Bidder by representatives of the District, in regard to the location, depth, dimensions, type or character of any pipes, conduits or other structures on the site of the work, is based on information provided by the owners of such structures and is offered solely for the convenience of the Bidder. Data shall be verified through site investigation which shall include daylighting (exposing) of the structures by the Successful Bidder prior to beginning any fieldwork on the project and any costs associated with that daylighting shall be included within bid items. The District will only assume the responsibility for the timely removal, relocation or protection of existing main or trunkline utility facilities located on the site of the work and currently in use, if such main or trunkline utility facilities have not been identified with reasonable accuracy in the contract documents. This does not include nonpressurized sewer, storm drain and drainage lines. On projects where traffic loops and signal conduits are likely to be encountered, the Successful Bidder shall be responsible for location and for repair of any damaged facilities. The Successful Bidder shall be compensated for relocation and repair work in such cases where he exercises reasonable care but, in the judgment of the District, is unable to avoid relocations or repairs prior to continuation of his work under the contract. In addition, no liquidated damages will be assessed against the Contractor for delays caused by the failure of the District or the owner of the utility to provide for removal, relocation or protection of such utility facilities. Nothing herein shall be deemed to require the District to indicate the presence of existing service laterals or appurtenances whenever the presence of such utilities on the site of the project can be inferred from the presence of other visible facilities (such as buildings, meter and junction boxes on or adjacent to the construction site). In general, the location of water services crossing the line of work, or of other minor structures or obstructions, may not be shown on the drawings. II-d (without D&B )

13 However, upon request by the Successful Bidder, the Engineer will have the approximate location of any known, existing water services marked on the street. Except as stated above, the Successful Bidder shall assume full responsibility and shall make no claim against the District for any damage to existing subsurface facilities, for any inconvenience to the him or for added costs in performing work which may be attributed in any degree to: (1) failure of the District to furnish information pertaining to structure locations; or (2) inaccuracy of any furnished information. 6. EXPERIENCE AND FINANCIAL QUALIFICATIONS The Bidder will be required to show to the satisfaction of the District that he has the necessary experience in the class of work to be performed, and the ability, equipment and financial resources to perform the work satisfactorily within the time specified. This information must be filed by the Bidder with his proposal and on blanks furnished by the District and will be used by the District in determining the lowest, responsible bidder. The sufficiency of the Bidder's experience and financial qualifications will be determined solely by the District and its decision shall be final. 7. SUBCONTRACTORS The Bidder must comply with the "Subletting and Subcontracting Fair Practices Act" (Public Contracts Code Section 4100, et. seq.). In addition, the Bidder must name in his proposal each subcontractor he will employ if awarded the contract, the work to be done by each subcontractor, the location of the mill or shop of each subcontractor, and, if requested, the price to be paid to each subcontractor for such work. If the Bidder fails to specify a subcontractor for any portion of the work to be performed under the contract subcontracting, it shall be understood that he will perform such portion of the work without the same and he will not be permitted to subcontract said portion of the work, except at the discretion of the District as set forth in the General Specifications. The Bidder may be required to furnish to the District information regarding technical experience, financial status, and available equipment for each subcontractor mentioned in his proposal. The District reserves the right to review qualifications of subcontractors and will advise the Bidder of its findings. 8. COLLUSION No person, firm, or corporation shall be allowed to make, file or be interested in more than one bid for the same work, except where alternate bids are requested. No person, firm, or corporation shall knowingly receive preferential treatment by any officer or any employee of the District. Violation of this section will, at the discretion of the District, result in immediate termination or cancellation of the contract. A person, firm or corporation acting as a subcontractor for labor or material portions of the contract will not be disqualified for submitting subproposals or quotations to more than one bidder on the same contract. II-e (without D&B )

14 9. BID GUARANTEE The Bidder shall submit with his bid either a certified check, cash, a cashier's check or a bid bond in an amount not less than 10% of the total amount of the bid in order to guarantee that the Bidder will, if successful, promptly execute a satisfactory contract and furnish bonds as required by these specifications. All bid guarantees shall be made payable to the Marin Municipal Water District, and bid bonds must be executed by an admitted surety insurer authorized to issue surety bonds in the State of California. Any condition or limitation placed upon a certified check may, at the option of the District, result in the rejection of the bid under which such check is submitted. If the Successful Bidder fails or refuses to execute the required contract and bonds within the time frame indicated in the contract "Instructions to Bidders" (or such additional time as may be allowed by the District), the proposal guarantee will become subject to deposit with the Treasurer of the District as moneys belonging to the District. Said amount is hereby agreed upon as liquidated damages for such failure or refusal to execute the contract and bonds as required. The proposal guarantee of all other bidders will be returned after the execution of the contract and the approval of the Successful Bidder's Faithful Performance and Payment Bonds. The District reserves the right to waive any defect or deficiency in the proposal guarantee. 10. AWARD OF CONTRACT - REJECTION OF BIDS Award of the contract will normally be made by the District to the lowest, responsible bidder within a reasonable time after the opening of proposals. The District may reject any and all bids and must reject any bid of any party found not to be a responsible Bidder. In the event of discrepancy in a bid between unit bid prices and total amounts, the unit bid prices shall control in determining the amount of each bid and which bidder has submitted the lowest bid. 11. NATURE OF ESTIMATED QUANTITIES The amount of work and material required under the contract is estimated as set forth on the Bidding Sheet Schedule of the contract documents and these estimates will be used as a basis for comparing bids. Estimated quantities are only approximations of work and material to be provided, and the District reserves the right to increase, decrease, or eliminate the amount of work or material required under the contract. Except as indicated in the specifications under the section entitled "Changes and Extra Work", the Contractor shall make no claims for anticipated profits, for loss of profit, for damages, or for any extra payment due to the differences between the amount of work actually done or materials actually furnished, and the estimated amount(s) as set forth in the Bidding Sheet Schedule. II-f (without D&B )

15 12. ADDENDA AND EXPLANATION TO BIDDERS Any explanation desired by Bidders regarding the meaning or interpretation of any of the contract documents must be requested in writing, with sufficient allowance of time for receipt of reply before the time set for opening of proposals. Any such explanations or interpretations will be made in the form of addenda to the documents and will be furnished to all Bidders. Bidders shall sign and submit all addenda with their proposals. The District is not authorized to give oral explanations or interpretations of contract documents, and a submission of a proposal constitutes agreement by the Bidder that he has placed no reliance on any such oral explanation or interpretation unless verified in writing. However, the District may upon inquiry by a Bidder, orally direct the Bidder's attention to the specific provision of the contract documents which covers the subject of the inquiry. 13. ASBESTOS AND HAZARDOUS SUBSTANCE REMOVAL WORK Health and Safety Code Section requires that all asbestos-related work and hazardous substance removal shall be performed by a qualified Contractor pursuant to a contract which is separate from any other work to be performed, when the presence of asbestos or hazardous substances is not disclosed in the bid or contract documents. Unless indicated in the Special Provisions or on the contract drawings, the presence of asbestos in existing facilities (e.g. pipe, insulation) or hazardous waste in existing soil or from existing facilities is not anticipated on this project. However, in the event that asbestos related and/or hazardous substances are encountered, the Contractor shall comply with the provisions of Article 47 of the General Specifications and of a separate contract awarded for its removal as required by Health and Safety Code Section II-g (without D&B )

16 To The Marin Municipal Water District Corte Madera, California PROPOSAL, 201 Pursuant to the foregoing Notice Inviting Bids, the undersigned Bidder here-with submits a proposal on the bidding sheet attached hereto and made a part hereof, and binds himself on award by The Marin Municipal Water District under this proposal to execute in accordance with such award a contract in the form hereto attached and of which this Proposal, forms, affidavits, drawings and specifications shall be a part, and to furnish the required bonds for guaranty of payment of claims for labor and materials and for performing and completing the said contract within the time stated and at the prices named in the Bidding Sheet hereto annexed. The attached Notice Inviting Bids, Information and Instructions for Bidders, all forms, affidavits, drawings and specifications are hereby made a part of this proposal, and all provisions thereof are hereby accepted by Contractor. The undersigned, as bidder, declares that the only persons or parties interested in this proposal as principals are those named herein; that this proposal is made without collusion with any other person, firm or corporation. The Bidder furthermore agrees that, in case of his default in executing the required contract and bonds, the check or proceeds of the bid bond, or other proposal guarantee, accompanying his proposal, and the money payable thereon, shall be retained by the District as liquidated damages, and not as a penalty, since the actual amount of damage to the District, on account of such default would be impracticable to ascertain. (Corporate Seal) (Signature) (Address) Nature of firm (corporation, partnership, etc.) and names of individual members of the firm, or names and titles of officers of corporation. Corporation organized under the laws of the State of Contractor's License No., State License Classification Expiration Date of Contractor's License Dept of Industrial Relations Registration No. Expiration Date of Registration No. III (without D&B )

17 Bolinas Avenue Service Improvement Project Contract No File No. D19025 BIDDING SHEET SCHEDULE BID ITEM UNIT NO. DESCRIPTION QUANTITY PRICE AMOUNT 1. SITE MOBILIZATION AND DEMOBILIZATION (not to exceed 5% of total bid) a) Each site 1 EA 2. INSTALL WELDED STEEL PIPE a) 6-inch 50 LF 3. INSTALL PIPE FITTINGS - WELDED a) 6-inch 5 EA 4. INSTALL PIPE FITTINGS - NON-WELDED a) 6-inch 2 EA 5. MAKE CONNECTIONS TO EXISTING PIPELINES a) 6-inch 2 EA 6. INSTALL TAPS AND CONNECTIONS FOR SERVICE LATERALS a) Renew 1-1/2 to 2-inch 2 EA b) Renew 1-inch or less 49 EA IV (without D&B )

18 Bolinas Avenue Service Improvement Project Contract No File No. D19025 BIDDING SHEET SCHEDULE BID ITEM UNIT NO. DESCRIPTION QUANTITY PRICE AMOUNT 7. INSTALL COPPER SERVICE PIPE a) 1-1/2 to 2-inch 90 LF b) 1-inch 1,030 LF 8. PAVEMENT CUTTING a) 8-inch or less 90 LF 9. PAVEMENT REMOVAL a) 8-inch or less 70 SF 10. TRENCH EXCAVATION a) Conventional 30 CY 11. FURNISH AND PLACE IMPORTED 10 CY BACKFILL - SELECT SAND 12. FURNISH AND PLACE CLASS 2 20 CY AGGREGATE BASE BACKFILL 13. FURNISH AND PLACE PERMANENT PAVEMENT a) 2-inch AC Plug 70 SF 14. REMOVE AND REPLACE MISCELLANEOUS CONCRETE a) 4-inch Thick Sidewalk 20 SF b) Curb & Gutter 20 LF IV-a (without D&B )

19 Bolinas Avenue Service Improvement Project Contract No File No. D19025 BIDDING SHEET SCHEDULE BID ITEM UNIT NO. DESCRIPTION QUANTITY PRICE AMOUNT Unit Price ADDITIVE ITEMS - Payment for the following items will be based solely on actual quantities of sheeting and shoring, over-excavation, and excavation of rock (as defined in Section 02200) performed. 15. SHEETING AND SHORING 10 LF 16. EXCAVATION AND DISPOSAL 10 CY OF ROCK TOTAL $ The District reserves the right to reject any or all bids. The Contract will be awarded to the lowest responsible bidder as determined by the District. The Contract shall be awarded to only one contractor for all work described in the bid items. The price shall include California Sales Tax and Use Tax whenever applicable. In the event of discrepancy between unit bid price and total amount, the unit bid price shall be used. SIGNATURE ADDRESS TELEPHONE NUMBER COMPANY CITY/STATE/ZIP CODE DATE IV-b (without D&B )

20 EXPERIENCE AND QUALIFICATIONS The following statements as to experience and qualifications of the Bidder are submitted with the Proposal as a part thereof, and the truthfulness and accuracy of the information is guaranteed by the Bidder. The Bidder has been engaged in the contracting business under the present business name for years. Experience in work of a nature similar to that covered in the proposal extends over a period of years. The Bidder, as a Contractor, has never failed to satisfactorily complete a contract awarded to him, except as follows: (name any and all exceptions and reasons therefor). The following contracts for work of a similar nature have been satisfactorily completed in the last three years for the persons, firm or authority indicated, and to whom reference is made. (Name five contracts). Failure to provide adequate or truthful information shall be basis for disqualification. Year Type of Work, Size Location & for Whom Performed (Phone #) Signature of Bidder Title Company Address V (without D&B )

21 Following is a list of plant and equipment owned by the Bidder, which is definitely available for use on the proposed work as required (not committed to other projects). Quantity Name, Type and Capacity Condition Location Signature of Bidder Title Company Address V-a (without D&B )

22 BIDDER'S REFERENCES Reference is hereby made to the following bank or banks as to the financial responsibility of the Bidder: Name of Bank Address Reference is hereby made to the following surety companies as to the financial responsibility and general reliability of the Bidder: Name of Surety Company Name of Surety Company Signature of Bidder Title Company Address VI (without D&B )

23 DESIGNATION OF SUBCONTRACTORS In compliance with the provisions of Public Contracts Code Section 4100 et seq., and any amendments thereto and the requirements of these specifications, each Bidder shall set forth the name, place of business, license number and license classification of each subcontractor who will perform work or labor or render service to the prime contractor in the construction of the work or improvement, including any subcontractor who specially fabricates and installs a portion of the work or improvement according to detailed drawings contained in the plans and specifications, in an amount exceeding one half of one percent of the prime contractor's total bid. In addition, the Bidder shall indicate for each subcontractor listed, the percentage of the subcontractor's work in comparison to the total bid amount. If the Contractor fails to specify a subcontractor for any portion of the work to be performed under the contract, he shall be deemed to have agreed to perform such portion himself, and he shall not be permitted to subcontract that portion of the work except under the conditions hereinafter set forth. The Contractor shall not, without the consent of the District, either: (a) substitute any person as subcontractor in place of the subcontractor designated in the original bid, or (b) permit any subcontract to be assigned or transferred or allow it to be performed by anyone other than the original subcontractor, or (c) sublet or subcontract any portion of the work as to which his original bid did not designate a subcontractor. Subletting or subcontracting of any portion of the work as to which no subcontractor was designated in the original bid shall only be permitted in cases of public emergency or necessity, and then only after a finding reduced to writing as public record of the Board of Directors of the District. Should the Contractor violate any of the provisions of said Section 4100 et seq. from Public Contracts Code Sections , or any amendments thereof, his so doing will be deemed a violation of his contract and the District shall have the right to cancel the contract. The Contractor shall not, after any such violation, recover thereon for any of the work done or materials furnished on such public work or improvement. LIST BELOW THE NAME AND LOCATION OF MILL, SHOP OR OFFICE OF EACH SUBCONTRACTOR, THE WORK THEY ARE TO PERFORM, THEIR LICENSE NUMBER, LICENSE CLASS, DEPARTMENT OF INDUSTRIAL RELATIONS REGISTRATION NUMBER, REGISTRATION EXPIRATION DATE AND THE PERCENTAGE OF THE WORK TO BE DONE BY EACH SUBCONTRACTOR: SubContractor's Name and Address 1. Work to be Performed License No. & Class* Department of Industrial Relations (DIR) Registration No. & Exp. Date Percent of Total Bid *If subcontractor is not required to be licensed by State of California, cite authority for exemption. VII (without D&B )

24 LIST BELOW THE NAME AND LOCATION OF MILL, SHOP OR OFFICE OF EACH SUBCONTRACTOR, THE WORK THEY ARE TO PERFORM, THEIR LICENSE NUMBER, LICENSE CLASS, DEPARTMENT OF INDUSTRIAL RELATIONS REGISTRATION NUMBER, REGISTRATION EXPIRATION DATE AND THE PERCENTAGE OF THE WORK TO BE DONE BY EACH SUBCONTRACTOR: SubContractor's Name and Address 2. Work to be Performed License No. & Class* DIR Registration No. & Exp. Date Percent of Total Bid 3. Work to be Performed License No. & Class* DIR Registration No. & Exp. Date Percent of Total Bid 4. Work to be Performed License No. & Class* DIR Registration No. & Exp. Date Percent of Total Bid 5. Work to be Performed License No. & Class* DIR Registration No. & Exp. Date Percent of Total Bid 6. Work to be Performed Signature of Bidder Title Company Address License No. & Class* DIR Registration No. & Exp. Date Percent of Total Bid (Add Additional Pages If Necessary) *If subcontractor is not required to be licensed by State of California, cite authority for exemption. VII-a (without D&B )

25 NONCOLLUSION AFFIDAVIT STATE OF CALIFORNIA ) ) ss. COUNTY OF ), being first duly sworn, deposes and says that he or she (sole owner, a partner, president, secretary, etc.) of, the party making the foregoing bid; that the bid is not made in the interest of, or on behalf of, any undisclosed person, partnership, company, association, organization, or corporation; that the bid is genuine and not collusive or sham; that the bidder has not directly or indirectly induced or solicited any other bidder to put in a false or sham bid, and has not directly or indirectly colluded, conspired, connived, or agreed with any bidder or anyone else to put in a sham bid or that anyone shall refrain from bidding; that the bidder has not in any manner, directly or indirectly, sought by agreement, communication, or conference with anyone to fix the bid price of the bidder or any other bidder, or to fix any overhead, profit, or cost element of the bid price or of that of any other bidder, or to secure any advantage against the public body awarding the contract of anyone interested in the proposed contract; that all statements contained in the bid are true; and further, that the bidder has not, directly or indirectly, submitted his or her bid price or any breakdown thereof, or the contents thereof, or divulged information or data relative thereto, or paid, and will not pay, any fee to any corporation, partnership, company association, organization, bid depository, or to any member or agent thereof to effectuate a collusive or sham bid. Signed Title Subscribed and sworn to before me this day of, 201 Seal of Notary Notary Public VIII (without D&B )

26 AGREEMENT, hereinafter called "Contractor", and Marin Municipal Water District, a public corporation, Corte Madera, California, hereinafter called "District" agree as follows: WHEREAS the District, by its Resolution No. passed on, 201_, awarded to Contractor the contract for the following: NOW, THEREFORE, Contractor agrees to perform said work in a good and workmanlike manner, under the direction and to the satisfaction of the District and will furnish materials necessary for use in the performance thereof, all in accordance with the Notice Inviting Bids, Instructions to Bidders, Proposal Submitted by Contractor, Information and Instructions for Bidders, and all contract drawings and specifications attached hereto, all of which are by this reference made a part of this agreement. Contractor further agrees to pay and discharge, when due, all labor and material claims incurred by him in the performance of this agreement and all amounts which may become due under the Unemployment Insurance Act. Said work shall be commenced within 14 calendar days after the date on which the notice stating that the contract has been signed is mailed to Contractor by District and shall be prosecuted diligently thereafter until completion and shall be completed within the time set forth in the Special Provisions. District agrees that upon the performance of the contract, District will pay to Contractor for said work, at the time(s), in the manner, and to the extent provided by law and in said Specifications, the amounts due to Contractor under this contract. The prevailing rate of wages in the locality in which work is to be performed has been ascertained by the District and published under the provisions of Section 1773 of the California Labor Code. Copies of the prevailing wage rates are on file in the office of the Secretary of the District at 220 Nellen Avenue, Corte Madera, and in the office of the Marin County Clerk, and are available upon request from the Secretary at the above address and also from the Marin County Department of Public Works, Civic Center, Room 304, San Rafael, California. It shall be mandatory upon the Contractor to whom the contract is awarded and upon any subcontractor under him to pay not less than the said prevailing wage rates to all workers employed by them in the execution of the contract. IX (without D&B )

27 Contractor warrants that he has inspected and is familiar with the provisions of the Standard Specifications of the Marin Municipal Water District on file at the District office, 220 Nellen Avenue, Corte Madera, California, and agrees to be bound by them as part of this agreement. The Standard Specifications for the Marin Municipal Water District are made a part of this agreement as if set forth in full. Contractor shall indemnify, hold harmless, defend and release District, its officers, directors, agents and employees from any and all liability, actions, claims, damages, costs, and expenses of suits, which may be asserted by any person or entity, including Contractor, arising out of or in connection with the activities of Contractor, its agents, and employees provided for herein whether or not there is concurrent passive negligence on the part of the District but excluding liability for District's sole negligence or willful misconduct. This indemnification obligation is not limited in any way by any limitation on the amount or types of damages or compensation paid by or for Contractor or its agents under workers' compensation acts, disability benefit acts, or other employee benefit acts. Time is of the essence. This writing is intended both as the final expression of the agreement between the parties hereto with respect to the included terms and as a complete and exclusive statement of the terms of the agreement, pursuant to quote of the Civil Procedures Section No modification to this agreement shall be effective unless and until such modification is made in writing and signed by both parties. Contractor Name Address City/State/Zip Signature Print Name and Title MARIN MUNICIPAL WATER DISTRICT General Manager Secretary IX-a (without D&B )

28 WORKERS' COMPENSATION CERTIFICATE I am aware of the provisions of Section 3700 of the Labor Code of the State of California which requires every employer to be insured against liability for worker's compensation or to undertake self-insurance in accordance with the provisions of that Code, and I will comply with such provisions before commencing the performance of the work of this contract. Business Address Place of Residence (Signature of Bidder) X (without D&B )

29 KNOW ALL MEN BY THESE PRESENTS that MARIN MUNICIPAL WATER DISTRICT CORTE MADERA, CALIFORNIA PERFORMANCE BOND FORM WHEREAS, the Marin Municipal Water District, by Resolution No. of its Board of Directors, passed on the day of has awarded to hereinafter designated as the "Principal", Contract No. which contract executed by said Principal is dated and is hereby referred to and incorporated herein by reference, and WHEREAS, said Principal is required under the terms of said contract to furnish a Bond for the faithful performance of said contract, NOW, THEREFORE, we the Principal and Surety undersigned are held and firmly bound unto the Marin Municipal Water District, hereinafter called the "District", in the penal sum of ($ ) lawful money of the United States (being not less than 100% of the total amount payable by the terms of said contract), for the payment of which sum well and truly to be made we bind ourselves, our heirs, executors, administrators, and successors, jointly and severally, firmly by these presents, as hereinabove provided. THE CONDITION OF THIS OBLIGATION IS SUCH that if the above bounden Principal, his or its heirs, executors, administrators, successors or assigns shall in all things stand to and abide by and well and truly keep and perform the covenants, conditions and agreements in the said contract and any alteration thereof made as therein provided, on his or their part to be kept and performed at the time and in the manner therein specified, and in all respects according to their true intent and meaning, and shall indemnify and save harmless the Marin Municipal Water District, its officers and agents, as therein stipulated, then this obligation shall become null and void; otherwise it shall be and remain in full force and virtue. The obligors herein expressly agree that this Bond shall be treated as the joint and several as well as the several obligation of each of the obligors. Any alterations in the work to be done or the material to be furnished which may be made pursuant to the terms of said contract shall not in any way release the Principal or the Surety hereunder, nor shall any extensions of time granted under the provisions of said contract release either the Principal or the Surety, and notice of such alterations or extensions of the contract is hereby waived by the Surety. XI (without D&B )

30 IN WITNESS WHEREOF, the above-bounden parties have executed this instrument under their several seals this day of 20 the name and corporate seal of each corporate party being hereto affixed and these presents duly signed by its undersigned representative, pursuant to authority of its governing body. Principal By By Surety By By XI-a (without D&B )

31 KNOW ALL MEN BY THESE PRESENTS that MARIN MUNICIPAL WATER DISTRICT CORTE MADERA, CALIFORNIA PAYMENT BOND FORM WHEREAS, the Marin Municipal Water District, by Resolution No. of its Board of Directors, passed on the day of has awarded to hereinafter designated as the "Contractor", Contract No. which contract executed by said Contractor is dated WHEREAS,, is designated as Surety on this bond, and WHEREAS, the Contractor named above, has entered into a contract with Marin Municipal Water District, hereinafter called the District, to perform and complete the work set forth in the Contract Documents named in the contract all now on file in the office of the Secretary of the District, as will more fully appear by reference to said contract, which is made a part hereof; and WHEREAS, Sections 3247 to 3252 inclusive of the Civil Code of the State of California (Statutes of 1969, Chapter 1362), and any amendments thereof, require contractors upon public work to file with the body by whom such contract was awarded a good and sufficient bond to secure the claims to which reference is made in said sections, NOW THESE PRESENTS WITNESSETH: That the Contractor, as Principal, and the Surety named above, as Surety, are held and firmly bound unto any and all persons, firms or corporations furnishing materials, provisions, or other supplies used in, upon, for or about the performance of the work contracted to be done, and to all persons, firms or corporations renting or hiring implements or machinery for or contributing to the said work to be done and to all persons who perform work or labor of any kind or nature thereon, or in connection therewith, and to all persons who supply both work and materials, in the sum of Dollars ($ ) lawful money of the United States of America, being not less than the total amount payable by the terms of said contract, for which payment well, truly and promptly to be made, we bind ourselves, our heirs, executors, administrators, successors and assigns, jointly and severally, firmly by these presents. The condition of the above obligation is such that if the Contractor, or the Contractor's subcontractors, fail to pay for any materials, provisions or other supplies used in, upon, for or about the performance of the work contracted to be done, or for any work or labor thereon of any kind, or for amounts due under the Unemployment Insurance Act with respect to such work or labor, the Surety will pay for the same, in an amount not exceeding the sum specified in this Bond, provided that any and all claims hereinunder shall be filed and proceedings had in connection therewith as required by the provisions of said Sections 3247 to 3252, inclusive, of the Civil Code of the State of California and any amendments thereof: PROVIDED ALSO, that in case suit is brought upon this Bond, reasonable attorney's fees and costs of suit, are to be included in the judgment therein rendered. XII (without D&B )

32 No prepayment or delay in payment and no change, extension, addition, or alteration of any provision of said contract or Contract Documents agreed to between the Contractor and the District, and no forbearance on the part of the District shall operate to release the Surety from liability on this Bond, and consent to make such alterations without further notice to or consent by the Surety is hereby given, and the Surety hereby waives the provisions of Section 2819 of the Civil Code of the State of California. Dated the day and year entered on the first page hereof. (Seal of Contractor) (Seal of Surety) This signature of the Surety on this Bond must be acknowledged Title before a Notary Public) By Title By Title By Title (Contractor) XII-a (without D&B )

33 KNOW ALL MEN BY THESE PRESENTS: MARIN MUNICIPAL WATER DISTRICT CORTE MADERA, CALIFORNIA MAINTENANCE BOND FORM Bond No. That, (Contractor) and (Surety) a corporation organized under the laws of the State of and authorized to do a surety business in the State of as Surety, are held and firmly bound unto the Marin Municipal Water District in the sum of (Amount) as Principal, ($ ), lawful money of the United States of America, for the payment of which sum well and truly to be made, we bind ourselves, our heirs, executors, administrators, successors and assigns, jointly and severally, firmly by these presents: SEALED with our seals and dated this day of 201 WHEREAS, on the entered into a contract for (Contract/Project) for the sum of (Amount), the said, as Contractor, ($ ) XIII (without D&B )

34 WHEREAS, under the terms of the specifications for said work, the said (Contractor) is required to give a bond for (Amount) ($ ) to protect the Marin Municipal Water District against the result of faulty materials or workmanship for a period of two years from and after the date of the completion and acceptance of same, namely, until. NOW, THEREFORE, if the said (Contractor) shall, for a period of two years from and after the date of the completion and acceptance of same by said Marin Municipal Water District, replace any and all defects arising in said work, whether resulting from defective materials or defective workmanship, then the above obligation will be void; otherwise it will remain in full force and effect. PROVIDED FURTHER, that the Surety stipulates and agrees that no change, extension of time, alteration or addition to the terms of the contract for (Contract/Project) or the work to be performed thereunder or the specifications accompanying same shall in any way affect its obligation on the Bond, and it hereby waives notice of any such change, extension of time, alteration or addition. (Contractor) By (Surety) By XIII-a (without D&B )

35 WORKERS' COMPENSATION INSURANCE Before contract execution, the Successful Bidder shall furnish to the District satisfactory proof that he has taken out, for the period covered by the proposed contract, full worker's compensation insurance with an insurance carrier satisfactory to the District. Such insurance shall cover all persons he may employ directly or through subcontractors in carrying out the work contemplated under the contract in accordance with the Act of the Legislature of the State of California known as the "Workers' Compensation Insurance and Safety Act", approved May 26, 1913, and all acts amendatory thereof or supplement thereto. Such insurance shall be maintained in full force and effect during the period covered by the contract. All workers' compensation policies shall be endorsed with the following specific language: "This policy shall not be cancelled without first giving thirty (30) days prior notice to Marin Municipal Water District by certified mail." If the Contractor fails to maintain such insurance, the District may take out compensation insurance to cover any compensation which the District or Contractor might be liable to pay under the provisions of said Act, as amended, by reason of any employee of the Contractor being injured or killed while engaged in the execution of the work covered by the contract. The District will then deduct and retain the amount of the premiums for such insurance from any sums due the Contractor under the contract. If any injury occurs to any employee of the Contractor for which the employee, or his dependents in the event of his death, is entitled to compensation from the District under the provisions of said Act as amended, or for which compensation is claimed from the District, the District may retain out of the sums due the Contractor under the contract an amount sufficient to cover such compensation as fixed by said Act as amended, until such compensation is paid or until it is determined that no compensation is due. If the District is compelled to pay such compensation, it will deduct and retain from such sums the amount so paid. PUBLIC LIABILITY INSURANCE Before contract execution, the Successful Bidder shall furnish to the District, satisfactory proof that he has adequate public liability insurance provided either by insurers admitted to do business in the State of California with at least an A.M. Best rating A or by non-admitted insurers with at least an A.M. Best rating of A, to protect himself against losses from liability for damages on account of bodily injuries, death, and/or property damage (including loss of use suffered or alleged to have been suffered by any person or persons), caused by or arising from the Contractor's performance under the contract. The District shall have the right to approve/disapprove any insurance carriers or forms. XIV (without D&B )

36 The Successful Bidder shall provide Personal Injury/Bodily Injury and Property Damage Insurance for all activities of the Successful Bidder and its subcontractors arising out of or in connection with this Contract, written on a commercial liability form including contractor's protective coverage and completed operations insurance in a amount not less than $1,000,000 combined single limit for each occurrence. The Successful Bidder shall also provide the District with automobile insurance including nonowned automobile liability coverage in an amount not less than $1,000,000. Additional Requirements Public/General Liability Insurance and Automobile Liability Insurance: 1. In addition to a satisfactory certificate of insurance, a list of the exclusion endorsements in the policy must be provided. Coverage must be provided for subsidence, explosion, collapse, and underground excavation (General Liability). 2. The Commercial General Liability must be an occurrence form, rather than claims made. 3. The insurance carriers must be financially credible, with a rating from A.M. Best of at least A. 4. The Contractor shall provide either the District s Additional Insured Endorsement form (Page XIV-b) or a CG /85 form that contains the following endorsements: a. Names The Marin Municipal Water District, its officers, directors, officials, agents, employees and volunteers (MMWD) as additional insureds. b. Insurance to be primary concerning MMWD. c. Notice of cancellation as follows: The insurance afforded by this policy shall not be cancelled except after thirty days prior written notice by certified mail return receipt requested has been given to the MMWD. d. The inclusion of more than one insured shall not operate to impair the right of one insured against another insured, and the coverage afforded in the policy shall apply as though separate policies had been issued to each insured. Each such policy shall be endorsed with the "Additional Insured Endorsement" form on Page XIV-b. XIV-a (without D&B )

37 ADDITIONAL INSURED ENDORSEMENT This endorsement modifies insurance provided under the following: Commercial General Liability Coverage: Policy # Policy Period Automobile Liability: Policy # Policy Period INSURED: SCHEDULE Name Address City/State/Zip The Marin Municipal Water District, its officers, officials, agents, employees and volunteers (MMWD). WHO IS AN INSURED Is amended to include as an insured the organization shown in the schedule above. 1. The insurance shall be primary concerning the insured shown in the schedule above. 2. The insurance afforded by this policy shall not be cancelled except after thirty days prior written notice by certified mail return receipt requested has been given to the MMWD. 3. The referenced policy does not exclude explosion, collapse, underground excavation hazards or removal of lateral support. 4. The inclusion of more than one insured shall not operate to impair the right of one insured against another insured, and the coverage afforded in the policy shall apply as though separate policies had been issued to each insured. Authorized Insurance Representative Signature Date Print Name and Title XIV-b (without D&B )

38 STANDARD SPECIFICATIONS GENERAL SPECIFICATIONS Marin Municipal Water District 220 Nellen Avenue Corte Madera, CA February 2012

39 1. DEFINITIONS MARIN MUNICIPAL WATER DISTRICT Whenever any of the following words or expressions, or pronouns in place of them, are used in the specifications or contract, they shall be understood to have the meanings given below: BIDDER Any individual or entity submitting a proposal for the proposed work. CERTIFIED Reference to certified documents in regard to the Labor Code are document forms that have been certified by the California State Department of Industrial Relations. COMPETENT PERSON a competent person, as defined by OSHA is one who is capable of identifying existing or predictable hazards in the surroundings or working conditions which are unsanitary, hazardous or dangerous to employees and who has authorization to take prompt corrective measures to eliminate them. CONTRACT The written agreement between the District and the Contractor covering the work. All contract documents shall be deemed part of the contract. CONTRACT BONDS The surety bonds furnished by the Contractor s surety as a guaranty that he will (1) complete the work in accordance with the terms of the contract; (2) secure the payment of claims for labor and materials used in or for the work; and (3) guarantee maintenance of the facilities for the time period specified in the contract documents. CONTRACT DOCUMENTS The contract documents shall include the Invitation for Proposal, the Notice to Contractors, the Proposal, the Bidding Sheet Schedule, the Contractor s Experience and Financial Qualifications Sheet, the Contractor s References, the Designation of Subcontractors form, the Contract bonds, the standard specifications, general specifications, technical specifications, reference specifications, supplemental specifications, general and detailed plans or drawings, special provisions, all executed supplemental agreements, addenda, permits, the contract, all general or special provisions pertaining to the work or materials, and all modifications issued after contract execution. CONTRACTOR The individual who or entity which has executed a contract with the District to perform the work specified in the contract documents. Under these specifications, Contractor shall include owners, partners, officers and agents authorized to act on behalf of the individual or entity under contract with the District. -1- Standard Specifications

40 CONTRACTOR S EMPLOYEES Any persons engaged in the execution of work under this contract, as direct employees of the Contractor or as employees of subcontractors. DATE OF SIGNING THE CONTRACT (or words equivalent) The date upon which the contract for the proposed work with the signature of the Contractor affixed thereto, together with the bond prescribed by law, is signed by the District. DISTRICT The Marin Municipal Water District, acting directly or through properly authorized agents, limited by the particular duties entrusted to them. EMPLOYEE any person employed by the Contractor who is not under a separate contract with the Contractor (see definition of subcontractor). ENGINEER The Manager of Engineering for the District, or his duly authorized representative, limited by the particular duties entrusted to him. INSPECTOR The authorized representative of the Engineer assigned to make a detailed inspection of any or all portions of the work or materials therefore. MATERIAL OR MATERIALS These words shall be construed to include construction materials (fabricated or otherwise), manufactured articles, machinery, and any other classes of materials or supplies, including the use of equipment and consumption of power and supplies, to be furnished in connection with the contract, except where a more limited meaning is indicated by the contract documents. PLANS OR DRAWINGS All drawings made by or for the District pertaining to the work included in the contract documents. PROPOSAL - The written submittal which the bidder delivers to the District in response to an Invitation for Proposal and which sets forth the price(s) for which the Bidder offers to perform the proposed work. PROPOSAL GUARANTEE The certified check, cash, cashier s check, or bid bond to be furnished by the Bidder as a guarantee of execution of contract for the work if the Bidder is awarded the contract. PROVIDE To furnish and install. REFERENCE SPECIFICATIONS Those bulletins, standards, rules methods of analysis or test, codes, and specifications of other agencies, engineering societies, or industrial associations referred to in the contract documents. These refer to the latest edition, including amendments in effect and published -2- Standard Specifications

41 2. TERMS at the time of advertising the project, unless specifically referred to by edition, volume, or date. REMOVE To dismantle and dispose of off-site. SPECIAL PROVISIONS The special provisions are specific clauses which set forth conditions or requirements particular to the project and which supplement or modify sections of the standard specifications. SPECIFICATIONS The written direction, provisions, and requirements pertaining to the work. The specifications include the special provisions, technical specifications, standard specifications, reference specifications and any attachments necessary, including addenda, to provide direction in regard to the work under this contract. STANDARD SPECIFICATIONS The standard specifications of the District. SUBCONTRACTOR An individual or entity under a written or verbal contract with the Contractor for the execution of any part of the work. SUCCESSFUL BIDDER The bidder to whom the District awards the contract. SURETY The individual or entity which the Contractor engages (through binding agreement) to assume liability for all debts and responsibility for the acceptable performance and/or maintenance of work under this contract if the Contractor defaults. TECHNICAL SPECIFICATIONS Technical specifications are that portion of the contract documents which delineate the work, materials, workmanship and payment aspects of bid items included on the Bidding Sheet Schedule of the contract. (THE) WORK That which is to be constructed or done under the contract in accordance with the contract documents. Unless otherwise stated, wherever words as directed, as required, as permitted, or words of like effect are used, it shall be understood that the direction, requirement or permission of the Engineer is intended. The words sufficient, necessary, proper, and the like, shall mean sufficient, necessary, or proper in the judgment of the Engineer. The words approval, acceptable, satisfactory, or other words of like import shall mean approved by, or acceptable to, or satisfactory to the Engineer. -3- Standard Specifications

42 3. WORK TO BE DONE TO THE SATISFACTION OF THE DISTRICT The Contractor shall furnish all labor, materials, tools, and equipment, except as otherwise expressly specified, that are necessary or proper for completion of the work according to the contract. Work shall be performed and materials provided to the satisfaction of the District. 4. SATISFACTION OF DISTRICT Whenever in these specifications the satisfaction of the District must be met and the District makes a determination in good faith of satisfaction or dissatisfaction, such determination shall be final and binding upon all parties. 5. ENGINEER TO DIRECT THE WORK Work shall be performed under the general direction of the Engineer. At his discretion, he may from time to time, choose the order and location of work to be done. He may also, at his discretion and at any time, exercise general control over the work, to safeguard the interests of the District. The Contractor shall immediately comply with any and all orders and instructions given by the Engineer. Nothing herein shall be construed to relieve the Contractor of any of his obligations or liabilities under the contract. 6. COMPLIANCE WITH CONTRACT DOCUMENTS The Contractor must strictly comply with all requirements of the contract documents. Variance from such requirements shall be permitted only upon the advance written consent of the Engineer. The Contractor may not rely upon any actual or alleged oral statement or representation of anyone purporting to waive, alter, or amend any such requirements. 7. PRECEDENCE OF CONTRACT DOCUMENTS Inadvertent conflicts between sections of the Contract Documents may occur. If there is a conflict among contract documents, the document highest in precedence shall control. The order of precedence shall be: a. Change Orders b. Special Provisions c. Contract Drawings d. Technical Specifications e. Standard Plans f. Standard Specifications g. Reference Specifications Change orders, supplemental agreements and approved revisions to plans and/or specifications will take precedence over documents listed above. -4- Standard Specifications

43 In cases of a conflict between District specifications and local jurisdiction permit requirements, the Engineer shall determine precedence. Any changes in permit requirement shall be submitted in writing to the District for approval prior to installation of affected project components. 8. INTERPRETATION OF SPECIFICATIONS Any discrepancy in, or misunderstanding of the contract documents shall be immediately referred to the Engineer. The Engineer shall clarify the true intent and meaning of the contract documents, and any decision rendered shall be binding on the Contractor. The Contractor will not be allowed to take advantage of any error or omission in the plans and specifications. Suitable instructions will be given or corrections made when such error or omission is discovered. 9. DRAWINGS The location and general arrangement of the facilities to be installed under the contract are as shown diagrammatically on the contract drawings. Additional drawings that may be necessary will be supplied by the District during the progress of the work, and such drawings shall become a part of the contract documents. 10. DRAWINGS REQUIRED OF CONTRACTOR Within 30 calendar days after execution of the contract, the Contractor shall submit to the Engineer any drawings, catalog cuts, specifications, lists and graphs as required under these specifications. Such submittals shall be reviewed and approved by the Contractor in regard to conformance to contract plans and specifications prior to submittal to the District. They shall become part of the contract documents upon the District s approval. Unless otherwise specified, five (5) copies of these materials shall be submitted. If the materials submitted by the Contractor are in accord with acceptable practice and meet the requirements of these specifications, the Engineer will return one set marked no exceptions noted within 15 working days after their receipt at the Engineer s office; otherwise said data will be returned to the Contractor within the 15 working day period with a statement of the points found unsatisfactory. In such a case the Contractor, at his own expense, shall proceed at once to revise said materials until they shall be found satisfactory by the Engineer. No fabrication shall start prior to the time the materials are determined to be satisfactory. The Contractor shall have no claim for damages or extension of time because of any delays for revisions found necessary to fulfill the requirements of these specifications. Regardless of such delays, the Contractor shall be liable to the District for any failure to complete the work as required by the contract documents. Revisions of said materials shall be considered as changes necessary to meet the requirements of the specifications and shall not be taken as the basis of claims for extra work. -5- Standard Specifications

44 Neither the inspection nor lack of inspection of any such materials shall constitute a waiver of any requirements of the contract documents or relieve the Contractor of any obligations thereunder. In addition, any deviation from the contract documents (including shop drawings, etc.) shall be brought to the attention of the Engineer by written notice. Defective work, materials, and equipment may be rejected notwithstanding conformance with drawings, catalog cuts, specifications, lists and graphs inspected by the Engineer. 11. SHORING PLAN Prior to excavation of any trench five (5) feet or more in depth, the Contractor shall submit to the District a detailed plan showing the design of shoring, bracing, sloping or other provisions to be made for worker protection from the hazard of caving ground. If the plan varies from the standard shoring systems indicated in the State Division of Industrial Safety, CAL/OSHA Construction Safety Orders, the plan shall be prepared by a registered civil or structural engineer. No excavation shall start until the Engineer has accepted the plan and the Contractor has furnished the Engineer with a copy of the CAL/OSHA permit pertaining to the work. In addition, no excavation shall be allowed until the Contractor furnishes the Engineer with a copy of the project notification forms or (letters) he has forwarded to the CAL/OSHA District Office. 12. BONDS As a part of the contract execution, the Contractor shall file with the District two corporate surety bonds, each in the sum not less than 100% of the total contract price. The Performance Bond is to guarantee faithful performance of all work, within the time prescribed, in a manner satisfactory to the District, and that all material and workmanship will be free from original or developed defects. The Payment Bond (Material and Labor Bond) is to satisfy claims of material suppliers and of mechanics and laborers employed by the Contractor on the work. The bonds shall be maintained by the Contractor in full force and effect until the work is accepted by the District, and until all claims for materials and labor are paid. Upon completion of the contract work, the Contractor shall provide the District with a maintenance bond as specified in Article 27 of these general specifications. Should any bond become insufficient, the Contractor shall increase or replace the bond as necessary within 10 days after receiving notice from the District. Should any Surety at any time be unsatisfactory to the District, notice will be given the Contractor to the effect. No further payments shall be deemed due or will be made under the contract until a new Surety shall qualify and be accepted by the District. Changes in the work, or extensions of time, made pursuant to the contract, shall in no way release the Contractor or Surety from their obligations. Notice of such changes or extensions shall be waived by the Surety. -6- Standard Specifications

45 13. WORKERS COMPENSATION INSURANCE Before contract execution, the Successful Bidder shall furnish to the District satisfactory proof of compliance with Labor Code Section 3700 which requires every contractor to secure the payment of compensation to his employees, and to be insured against liability for workers compensation. All workers compensation policies shall be endorsed with the following specific language: This policy shall not be cancelled without first giving thirty (30) days prior notice to the Marin Municipal Water District by certified mail. 14. PUBLIC LIABILITY AND PROPERTY DAMAGE INSURANCE Before contract execution, the Successful Bidder shall furnish to the District satisfactory proof that he has the insurance coverage described on Pages XIV and XIV-a of the legal section of these specifications. The required minimum amount of public liability insurance may be increased if in the judgment of the District, conditions on the work warrant such increase. The Contractor shall increase the amounts of the insurance in accordance with any such determination by the District. If the Contractor fails to maintain such insurance, the District may take out Public Liability Insurance covering the District for any damages caused by or arising from the Contractor's performance under the contract, and deduct the amount of the premiums for such insurance from any sums due the Contractor under the contract. Contractor shall forward any third party claims for personal injury or property damage made against District which are alleged to have been caused by Contractor to Contractor's public liability insurance carrier as soon as they are brought to Contractor's attention if they are not paid immediately by Contractor. Contractor shall cooperate with the District in the evaluation of such claims to assure their speedy resolution. Nothing herein contained shall be construed as limiting in any way the extent to which the Contractor may be held responsible for payment of damages resulting from his operations. 15. PERMITS, LICENSES AND FEES The Contractor shall procure all necessary permits and licenses, pay all charges and fees (including fees for encroachment, special, and street (opening permits) and give all notices necessary for the due and lawful prosecution of work unless otherwise expressly provided. The Contractor shall furnish the District with copies of all permits, licenses and notices procured by him for prosecution of the work. The Contractor shall pay all sales taxes and fees levied on material, supplies, or equipment purchased by him and used on or incorporated into the work, and all other taxes properly assessed against his equipment or property used in connection with the work. -7- Standard Specifications

46 The Contractor shall conform to the requirements of permits issued by jurisdictions in the project area regardless of the party who applied for the permit. Failure to comply with requirements of the jurisdictions or the District s efforts to comply with those requirements, shall be deemed a breech of contract and may result in termination of the contract. In cases of a conflict between District specifications and local jurisdiction permit requirements, the Engineer shall determine precedence. Any changes to permit requirements shall be submitted in writing to the District for approval prior to installation of affected project components. The permit changes shall be authorized by the permitting jurisdiction and any cost adjustments shall be negotiated between the Contractor and the District. 16. PROGRESS SCHEDULE AND ORDER OF COMPLETION To insure completion of the work within the time limits specified, and to assist the District in the scheduling of other work, the contractor shall submit to the District within five (5) working days after the Award of Contract, a detailed schedule showing the proposed dates of beginning and completion of all significant items of work under the contract. If the actual progress of the work varies materially from the proposed schedule or if the Contractor proposes to change it for any reason, he shall submit to the District the revised construction schedule which he proposes to follow. The proposed original and revised schedule shall be adequate, in the opinion of the District, to meet the requirements for completion of the work as herein set forth. If, in the opinion of the District, the Contractor s proposed schedule or the actual progress of the work is insufficient to meet the specified requirements, the Contractor shall take such steps as are necessary to accomplish the required progress and completion. When in the judgement of the District, it is necessary to accelerate any part of the work ahead of schedule, the Contractor shall, when directed, concentrate his efforts on such part of the work. The District reserves the right to reschedule work due to lack of timely submittal of schedules or notification of schedule changes. 17. LAWS AND REGULATIONS The Contractor shall keep himself fully informed of and shall strictly comply with all laws, regulations and orders of properly constituted authorities affecting the contract, the material to be supplied, the work to be done, and the persons connected with the work. Persons authorized by the District or any such authorities may at any time enter upon any part of the work to ascertain compliance with such laws, regulations or orders. 18. LICENSING OF CONTRACTORS The Contractor shall have a valid license issued by the Contractor s State License Board for the class of work covered by this contract during the entire term of this contract. The District may prohibit the Contractor from performance of any part of -8- Standard Specifications

47 the contract until he is properly licensed. No such prohibition placed on the Contractor shall constitute grounds for any delay in any completion date or time agreed upon in the contract. 19. CONTRACTOR S LEGAL ADDRESS The address given on the proposal is designated as the legal address of the Contractor, but such address may be changed at any time by written notice delivered to the District. The delivery or deposit of any drawing, notice, letter or other communication to such legal address, post office or U.S. Postal Service box shall constitute legal and sufficient service upon the Contractor. 20. SUBCONTRACTS, ASSIGNMENTS The Contractor shall constantly give his personal attention to the faithful prosecution of the work; he shall keep the work under his personal control and shall not assign nor subcontract the whole or any part thereof, except as provided herein. The Contractor shall not substitute any other person or firm in the place of any of the subcontractors stated in the contract documents, nor shall any subcontractor assign or transfer his subcontract or permit the same to be performed by any other Contractor, without the written approval of the District. If the Contractor fails to specify a subcontractor for any portion of the work to be performed under this contract, he has agreed to perform such portion of work without subcontracting and shall not be permitted to subcontract that portion of work except as hereinafter provided. Should the Contractor subcontract any portion of the work for which he has not named a subcontractor nor received District consent, he is in material violation of the contract and the District has the right to cancel the contract. In regard to sub-contractors indicated in the contract documents, the District may request that the Contractor submit a copy of each contract which he proposes for subcontractor for assignment of any portion of the work. Whenever a contractor or subcontractor subcontracts work with a value of 25% or more of the total contract price, the contractor or subcontractor shall submit information to the District regarding those parties to whom the subcontracts are to be assigned. This information will enable the District to determine the responsibility and standing of the proposed subcontractor or assignee. No subcontract or assignment will be approved unless the original contract between the Contractor and the District is made a part thereof, nor unless it appears to the District that the proposed subcontractor or assignee is in every way reliable, responsible and fully able to perform and complete the portion of the work covered by the proposed subcontract or assignment. Should the District determine that any subcontractor does not have the experience or financial qualifications to perform said portion of the work, or that he is unable to provide in due time the necessary labor, materials, tools or equipment to perform said portion of the work, or is otherwise unacceptable, the Contractor shall be notified in writing. He shall then substitute an acceptable subcontractor or shall perform said work without subcontracting it. -9- Standard Specifications

48 Subsequent to contract execution, any proposal to subcontract any portion of the work in excess of one half of one percent of the total original bid amount must comply with Public Contract Code Section 4100 et seq. No subcontract or assignment shall relieve the Contractor or his Sureties of any liability or obligation under the contract. 21. ANTITRUST CLAIMS The Contractor is notified pursuant to Government Code Section 4551 that: In entering into a public works contract or a subcontract to supply goods, services or materials pursuant to a public works contract, the Contractor or subcontractor offers and agrees to assign to the awarding body all rights, title, and interest in and to all causes of action it may have under Section 4 of the Clayton Act (15 U.S.C. Sec. 15) or under the Cartwright Act (Chapter 2 commencing with Section of Part 2 of Division 7 of the Business and Professions Code), arising from purchases of goods, services, or materials pursuant to the public works contract or the subcontract. This assignment shall be made and become effective at the time the awarding body tenders final payment to the Contractor, without further acknowledgement by the parties. 22. FAIR EMPLOYMENT PRACTICES This contract is subject to the provisions of the California Fair Employment and Housing Act (Government Code Section et seq.) which state that the Contractor and subcontractors shall not discriminate against any employee or applicant for employment because of sex, race, color, religion, ancestry, or national origin. The Contractor and subcontractors shall take affirmative action to ensure that employment of applicants and treatment of employees conform to the code. Such action shall include, but be not limited to the following areas of consideration: Employment standards, qualifications, reclassifications, job upgradings, demotions, transfers, recruitments, recruitment advertisements, layoffs or terminations, payment rates or other forms of compensation, and selection for training, including apprenticeship. The Contractor and subcontractors shall post in conspicuous places, available to employees and applicants for employment, notices to be provided by the State setting forth the provisions of said Act. The Contractor and any subcontractors under him shall permit access to records of employment, employment advertisements, application forms, and other pertinent data by the California Fair Employment and Housing Commission, or any other agency of the State designated to investigate compliance with this article. 23. WAGES, HOURS, APPRENTICES a. Prevailing Wage. Pursuant to the statutes of the State of California, the State Director of Industrial Relations has ascertained and determined the general -10- Standard Specifications

49 prevailing rate of per diem wages, and rates for overtime and legal holidays, in the locality in which this work is to be performed for each craft or type of worker or mechanic needed to execute the Contract. The prevailing rates so determined are available for inspection at the Agency office and form a part of the Contract Documents. The Contractor shall post at the job site(s) a copy of the applicable determinations by the State Director of the prevailing rate of per diem wages. The Contractor shall be responsible for compliance with Section 1775 of the Labor Code, which reads in part as follows: The contractor shall as a penalty to the state or political subdivision on whose behalf the contract is made or awarded, forfeit fifty dollars ($50) for each calendar day, or portion thereof, for each workman paid less than prevailing rates as determined by the director for such work or craft in which such workman is employed for any public work done under the contract by him or by any subcontractor under him. The difference between such prevailing wage rates and the amount paid to each workman for each calendar day or portion thereof for which each workman was less than the prevailing wage rate shall be paid to each workman by the contractor. Any individual who is not a subcontractor for the Contractor shall be considered an employee and shall be paid prevailing wage rates in accordance with the Labor Code as mentioned above. b. Eight Hour Day Limitation. In accordance with the provisions of Article 3, Chapter 1, Part 7, Division 2 of the Labor Code, State of California, and in particular Sections 1810 to 1815 thereof, inclusive, eight (8) hours labor shall constitute a day s work and no laborer, worker, or mechanic in the employ of said Contractor, or any subcontractor doing or contracting to do any part of the work contemplated by this Contract, shall be required or permitted to work more than eight (8) hours in any one calendar day, and forty (40) hours in any one calendar week, except as provided for in Section Section 1815 provides that work performed by employees of the Contractor in excess of eight (8) hours per day or forty (40) hours per week shall be permitted upon public works projects, provided such excess work hours are compensated at one and a half times prevailing wage rates. The Contractor shall be subject to compliance with Section 1813 of the Labor Code, which reads in part as follows: The contractor shall, as a penalty to the State or political subdivision on whose behalf the contract is made or awarded, forfeit twenty-five dollars ($25) for each workman employed in the execution of the contract by the contractor or by any subcontractor for each calendar day during which such workman is required or permitted to work more than eight (8) hours in any one calendar day and 40 hours in any one calendar week in violation of the provisions of this article. c. Payroll Records. The Contractor shall be responsible for compliance with Section 1776 of the Labor Code, which reads, in part, as follows: (1) Each Contractor and subcontractor shall keep an accurate payroll record, showing the name, address, social security number, work -11- Standard Specifications

50 classification, straight time and overtime hours worked each day and week, and the actual per diem wages paid to each journeyman, apprentice, worker or other employee employed by him or her in connection with the public work. (2) The payroll records enumerated under subdivision a. shall be certified and shall be available for inspection at all reasonable hours at the principal office of the Contractor on the following basis: (a) A certified copy of an employee s payroll record shall be made available for inspection or furnished to the employee or his or her authorized representative on request. (b) A certified copy of all payroll records enumerated in subdivision a. shall be made available for inspection or furnished upon request to a representative of the body awarding the contract, the Division of Labor Standards Enforcement, and the Division of Apprenticeship Standards of the Department of Industrial Relations. (c) A Certified copy of all payroll records enumerated in subdivision a. shall be made available upon request by the public for inspection or copies thereof made; provided, however, that a request by the public shall be made through either the body awarding the contract, the Division of Apprenticeship Standards, or the Division of Labor Standards Enforcement. If the requested payroll records have not been provided pursuant to paragraph (2), the requesting party shall, prior to being provided the records, reimburse the costs of preparation by the contractor, subcontractors, and the entity through which the request was made. The public shall not be given access to the records at the principal office of the contractor. (3) Each Contractor shall file a certified copy of the records enumerated in subdivision a. with the entity that requested the records within 10 days after receipt of a written request. (4) Any copy of records made available for inspection as copies and furnished upon request to the public or any public agency by the awarding body, the Division of Apprenticeship Standards, or the Division of Labor Standards Enforcement shall be marked or obliterated in such a manner as to prevent disclosure of an individual s name, address, and social security number. The name and address of the contractor awarded the contract or performing the contract shall not be marked or obliterated. (5) The Contractor shall inform the body awarding the contract of the location of the records enumerated under subdivision a., including the street address, city and county, and shall, within five working days, provide a notice of a change of location and address Standard Specifications

51 (6) In the event of noncompliance with the requirements of this section, the Contractor shall have 10 days in which to comply subsequent to receipt of written notice specifying in what respects the Contractor must comply with this section. Should noncompliance still be evident after the 10-day period, the Contractor shall, as a penalty to the state or political subdivision on whose behalf the contract is made or awarded, forfeit twenty-five dollars ($25) for each calendar day, or portion thereof, for each worker, until strict compliance is effectuated. d. Apprentices. Attention is directed to the provisions in Section , , and of the Labor Code concerning the employment of apprentices by the Contractor or any subcontractor under him. The Contractor shall be responsible for compliance with Section , if applicable, which reads, in part, as follows: The contractor or subcontractor, if he is covered by this section, upon the issuance of the approval certificate, or if he has been previously approved in such craft or trade, shall employ the number of apprentices or the ratio of apprentices to journeymen stipulated in the apprenticeship standards. Upon proper showing by the contractor that he employs apprentices in such craft or trade in the state on all of his contracts on an annual average of not less than one apprentice to each five journeymen, the Division of Apprenticeship Standards may grant a certificate exempting the contractor from the 1-to-5 ratio as set forth in this section. This section shall not apply to contracts of general contractors involving less than thirty thousand dollars ($30,000) or 20 working days or to contracts of specialty contractors not bidding for work through a general or prime contractor, involving less than two thousand dollars ($2,000) or fewer than five working days. 24. CERTIFIED PAYROLL SUBMITTALS AND COST DATA The Contractor and any subcontractors under him, shall comply with the requirements of Labor Code Section 1776 regarding payroll records and shall submit to the Engineer certified copies of payroll records as required by Labor Code Section 1776(a) on a weekly basis. In addition, for the District to fairly and accurately ascertain the cost of any item of work, the Contractor will be required to maintain, on a daily basis, a full detailed report of the previous day's work. This report shall show the number and names of persons employed, the hours worked at each rate of pay, the time and cost of rental of each piece of equipment used, the amount and cost of each class of material used, and any other costs to the Contractor, all as applied to each subdivision of the work. Typical forms of the report will include daily timecards, payrolls, vouchers, invoices, etc. The reports will provide a clear distinction between the direct costs of extra work paid for on a force account basis and the costs of other operations. The daily reports must be submitted with all extra work -13- Standard Specifications

52 claims paid for on a force account basis, and as otherwise requested by the Engineer. 25. TRAVEL AND SUBSISTANCE PAY a. As required by Section of the California Labor Code the Contractor shall make travel and subsistence payments to each worker needed to execute the work. Such travel and subsistence payments are defined in the applicable collective bargaining agreements filed in accordance with this Section. b. To establish such travel and subsistence payments, the representative of any craft, classification, or type of worker needed to execute the contracts shall file with the Department of Industrial Relations fully executed copies of collective bargaining agreements for the particular craft, classification or type of work involved. Such agreements shall be filed within ten (10) days after their execution and thereafter shall establish such travel and subsistence payments whenever filed thirty (30) days prior to the call for bids. 26. GUARANTEE The Contractor guarantees that all work performed by him, and all structures furnished and installed or constructed by him under this contract, will fully meet all requirements of the contract documents. For a period of two years after final acceptance of the work, the Contractor shall guarantee his workmanship by agreeing to maintain all of the facilities or structures furnished and installed or constructed by him under the contract. Partial use or occupancy of the work by District prior to final acceptance of the entire work shall not be deemed to start the guarantee period. Should any installed facilities fail to fulfill any of the requirements of the contract, the Contractor shall promptly repair or replace unsatisfactory material and repair any facilities as directed by the Engineer. Such repairs and replacements shall not inconvenience the District. All costs shall be borne by the Contractor. The Contractor shall not be liable for damage caused by other parties who damage facilities installed by the Contractor. Should the Contractor fail to act promptly in accordance with this requirement, or should the circumstances require repairs or replacements before the Contractor can be notified or can respond to notification, the District may at its option, make the necessary repairs or replacements, and the Contractor shall pay to the District all costs of such repairs, including applicable overhead. The Contractor shall be responsible for the full cost incidental to making good any and all of the above guarantees and agreements. The above guarantees and agreements are covenants, the performance of which shall be binding upon the Contractor and his sureties Standard Specifications

53 27. MAINTENANCE BOND To insure the District of the protection which the guarantee is to provide, the Contractor shall, except where otherwise specified, provide a surety bond in the amount of 25% of the final total contract price. The final total contract price shall include contract adjustments, extra work and credits. It shall not include overtime chargeable to the Contractor, liquidated damages and other adjustments unrelated to specific work items. The bond must be delivered to the District by the Contractor following the semi-final payment in order that the Notice of Completion can be recorded. The bond may be included in combination with a performance and/or payment bond, but in no case shall the maintenance bond be less than 25% of the final total contract price. The maintenance bond shall be in effect for two years following the date Notice of Completion is recorded unless otherwise specified. In the event that the Contractor must repair installed facilities within the two year maintenance period, the Contractor shall provide an additional one year maintenance bond covering the repaired facility as determined by the Engineer 28. REASONABLE ASSURANCES Each party to this agreement undertakes the obligation that the other s expectation of receiving due performance will not be impaired. When reasonable grounds for insecurity arise, with respect to performance of either party, the other may, in writing, demand adequate assurance of due performance and until the requesting party receives such assurance may, if commercially reasonable, suspend any performance for which the agreed return has not been received. Commercially reasonable includes not only the conduct of the party with respect to performance under this agreement but also conduct with respect to other agreements with parties to this agreement or others. After receipt of a justified demand, failure to provide within a reasonable time, not to exceed 30 days, such assurance of due performance as is adequate under the circumstances of the particular case is a repudiation of this agreement. Acceptance of any improper delivery, service, or payment does not prejudice the aggrieved party's right to demand adequate assurance of future performance. 29. WORK INCLUDED The Contractor shall perform all work as described in the contract documents. In the performance of the work, the Contractor shall furnish all material not specifically indicated as being furnished by the District and shall install all necessary material, whether furnished by the District or by the Contractor, as indicated in the contract documents. All work shall be so performed that upon completion of the contract, the work is ready for use. 30. WORK AND MATERIAL QUALITY All work shall be performed in a workmanlike manner in conformity with the best accepted construction and installation practices. Unless otherwise specified, work -15- Standard Specifications

54 shall be performed at a minimum in accordance with the applicable sections of the current standards of the American Water Works Association (AWWA), the American National Standards Institute (ANSI), the American Society for Testing and Materials (ASTM), the American Welding Society (AWS), the National Electrical Manufacturing Association (NEMA), the Instrument Society of America (ISA), the Uniform Building Code (UBC), the American Concrete Institute (ACI), and other generally accepted national quality control organizations which issue standard specifications. Material or manufactured articles shall be new and shall be of the best grade, in quality and workmanship, obtainable in the market from firms of established good reputation, or, if not ordinarily carried in stock, shall conform to the usual standards for first class material or articles of the kind required, with due consideration of the use to which they are to be put. In the event that requirements for any materials to be used in the work are not specifically set forth in these specifications, the Contractor shall submit information regarding the materials he intends to use to the Engineer for the District s written approval prior to use in the work. 31. RESPONSIBILITY OF CONTRACTOR Except as indicated under changed conditions (Article 47), the Contractor shall take all responsibility for the work. He shall bear all losses resulting to him or to the District on account of the amount or character of the work or because the nature of the ground in or on which the work is done is different from what is assumed or expected or on account of weather, flood, unforeseen difficulties, accidents, or any other causes. He shall assume the defense of and indemnify and hold harmless the District and its officers, agents, and employees, from all claims of any kind arising from the performance of the contract, including claims for personal injury or death, claims for damage to property and claims for loss of business, and including all such claims as may be presented or asserted by officers, agents or employees of the Contractor, officers, agents, or employees of the District, and officers, agents or employees of subcontractors or third parties. The District will call to the Contractor s attention all job site conditions or activities known to the District which are likely to create a risk of physical harm to workers or the public. The District will also note any failure to comply with safety rules and regulations when observed or made known to the District, and direct the Contractor to take immediate remedial action to correct such conditions or activities. In the event that immediate action is not taken by the Contractor to comply with applicable safety rules and regulations and to correct such dangerous conditions or activities, the District reserves the right to stop work under the contract until corrective action is taken by the Contractor. All delays caused by such stoppage of work for failure of the Contractor to take remedial action will be chargeable to the Contractor, and will not be considered as unavoidable delay, as defined in these specifications Standard Specifications

55 Regardless of any suggestion, direction or other activity by the District, the Contractor and its Surety will continue to indemnify and hold the District harmless under the foregoing provisions of this article. Likewise, any failure of the District to detect or to call attention to any such condition or lack of compliance with safety rules shall in no way relieve the Contractor of his obligations under the contract. 32. CONTRACTOR TO SUPPLY SUFFICIENT LABOR, EQUIPMENT AND MATERIAL The Contractor shall at all times keep upon the premises a sufficient amount of material, shall have proper equipment available at the job site, and shall employ a sufficient number of workers to prosecute the work according to the contract documents. Should the Contractor, at any time during the progress of the work, refuse, neglect, or otherwise fail to supply sufficient material, labor, tools and equipment to prosecute the work at such necessary rate, the District may notify the Contractor in writing to furnish whatever the Engineer determines necessary to do so. If the Contractor does not comply with such notice from the District within 3 working days of the date of notice, the District shall have the right to provide the materials and workers to finish the work, and to deduct incurred expenses from any monies due or which may thereafter become due, under the contract. If the Contractor fails to perform daily tasks (e.g. cutback installation, clean-up), the District shall have the right to complete such tasks and deduct the incurred cost from payments due to the Contractor. The amount of any such payment shall be deducted from the fund or appropriation set aside for the purposes of the contract and charged to the Contractor as if paid to him. The District shall have the option to terminate the contract should the Contractor at any time during the progress of the work neglect, refuse or be unable, in the judgment of the District, to supply sufficient material or workers to prosecute the work at the rate necessary to complete it within the time specified in the contract. 33. CONSTRUCTION PLANT, EQUIPMENT AND METHODS The Contractor s plant and equipment and his methods and organization for handling the work, shall be such as will secure a satisfactory quality of work, and a rate of progress which, in the judgment of the Engineer, will insure the completion of the work as specified in the contract documents. The Contractor shall give the Engineer complete, advance written information regarding his plans for prosecuting all parts of the work. If at any time in the judgment of the Engineer, the Contractor s plant or equipment or any of his methods of executing the work are unsafe, or inadequate to insure the required quality or rate of progress of the work, the Contractor may be ordered to increase or improve his facilities or methods accordingly. The Contractor shall promptly -17- Standard Specifications

56 comply with such orders; but neither compliance with such orders nor failure of the Engineer to issue such orders shall relieve the Contractor from his obligation to secure the degree of safety, the quality of work and the rate of progress required by the contract. The Contractor alone shall be responsible for the safety, adequacy and efficiency of his plant, equipment and methods. 34. COOPERATION The Contractor shall cooperate with all other contractors and workers who may be employed by the District on any work in the vicinity of the work to be done under the contract. The Contractor shall conduct the work to avoid interference with the work of such contractors or workers. He shall also assume all liability for any damage to the work of other contractors or injury to employees of the District resulting from his work. Any difference or conflict which may arise between the Contractor and other contractors or between the Contractor and District employees in regard to their work shall be resolved by the Engineer. The District shall have full authority to coordinate the timing and integration of associated projects or contracts and the Contractor agrees to follow and be bound by the decisions of the Engineer. The Contractor shall suspend or continue any part of the work in a manner prescribed by the Engineer, when such suspension or prosecution is necessary to facilitate the work of other contractors or workers. An extension of time for the completion of the work will be made for such period of time as the Engineer considers the Contractor to have been delayed in the final completion of the work by reason of the Engineer s direction. However, no damages or claims by the Contractor will be allowed for such delays. The Contractor shall be liable for any damage or delay to the work of the other contractors or workers which may be caused by unnecessary delay or carelessness on his part. 35. INSPECTION All work and material (including the manufacture and preparation of such material) from the beginning of the construction until final completion and acceptance of the proposed work, shall be subject to the inspection and approval of the Engineer. Unless otherwise authorized, work shall be done only in the presence of the Engineer. Any work done without proper inspection will be subject to rejection. The Engineer shall at all times have access to the work during its construction or fabrication at shops and yards as well as the project site. The Contractor shall provide every reasonable facility for ascertaining that all material and workmanship conform to the contract documents. Any work or material found to be in any way unsatisfactory or defective before the acceptance of the proposed work, shall be corrected or replaced immediately by the Contractor at his own expense, regardless of the fact that it may have been -18- Standard Specifications

57 previously overlooked or passed by the Engineer. Inspection of the work shall not relieve the Contractor of the obligation to fulfill all conditions of the contract. Whenever required by the Engineer, the Contractor shall furnish all labor, material, tools and equipment necessary to make an examination of any work under the contract that may be completed or in progress, even to the extent of uncovering or taking down portions of the previously inspected, finished work. Where such uncovering or taking down is necessitated by the Contractor s violation of law or breach of contract, or where such work is found unsatisfactory, the cost of making such examination and of reconstruction shall be borne by the Contractor. If work is found to be satisfactory, the examination and reconstruction costs will be borne by the District in the manner prescribed for payment for extra work. 36. LINES, GRADES, MEASUREMENTS AND SURVEYS All work under the contract shall be done to the lines and grades indicated in the contract documents or prescribed by the Engineer. The Contractor shall lay out all work, including structures and pipelines, and shall be responsible for any errors resulting. He shall provide all necessary surveys, field staking, and positioning for the construction of all components at the proper alignment, elevations, grades, and positions, as indicated on the Drawings and as required for the proper operation and function. The Contractor shall stake his own work area limits as shown on the drawings. It may be necessary at times that portions of the Contractor s work be discontinued for brief periods, in order that the Engineer may make measurements or surveys without interruptions or other interference that might impair the accuracy of the results. At any time, on request of the Engineer, the Contractor shall discontinue his work to such extent as may be necessary for such purposes of the Engineer. No direct payment will be made to the Contractor for work or delays associated with the establishment or checks of lines, grades or measurements. No extension of time will be allowed for such delays. 37. LINE AND GRADE CHANGES The Engineer may change the alignment, grade or dimensions of any portion of the work from those indicated in the contract documents at any time prior to startup or during work under the contract. Where such changes are minor in nature, the Contractor shall make no claim for any extra payment due to variations in natural conditions, amounts or construction expenses resulting from changes in lines, grades or dimensions. However, if the change is substantial, and the Contractor can adequately demonstrate from his records the extra cost to him resulting from the change, payment for extra work will be allowed Standard Specifications

58 If such a change involves abandonment of current contract work which was complete prior to the change by the Engineer, the Contractor will be paid for the abandoned work approved by the Engineer at the prices named in the contract. No allowance or payment will be made for segments of the abandoned work performed subsequent to the notice of abandonment. 38. COMMENCEMENT OF WORK The Contractor shall be ready to commence the contemplated work within the time limit stated in the agreement and to prosecute it diligently at such rate as will enable him to construct and finish the entire work within the time specified. In the event that conditions at the work site (due to the work of other contractors or for other reasons) prevent the Contractor from commencing and reasonably prosecuting the work on some substantial portion of the contract he shall notify the Engineer. The Engineer will examine the conditions and notify the Contractor when work shall commence. The District will grant an extension of time equal to the time between the official date for commencement as above determined and the revised date for commencement designated in the notice from the Engineer. Whenever the contract work is divided into two or more sections at separate locations, or is of such extent that any considerable portion of the work in a single location may be advantageously prosecuted, the Contractor may be required to proceed with work on such section or portion of the Contract. 39. NOTICE OF COMMENCEMENT / CESSATION OF WORK Before any work under the contract is started, the Contractor shall inform the Engineer of the time and place of work commencement, and the nature of the work to be done, in order that the Engineer may make proper provision for inspection of the work, for furnishing of lines and grades and for making measurements for records and payment. Such information shall be given to the Engineer at least 4 working days in advance of the time at which the Contractor proposes to begin the work. The Contractor shall inform the Engineer of any work cessation at the site. Such notice shall include an estimate of the time which the Contractor expects to be off the job site. The Contractor shall notify the Engineer of his commencement of further work on the site at least one day prior to resumption of work. 40. CHANGES AND EXTRA WORK The District may, upon written notice, order alterations in the amount or dimensions of all or any part of the work contemplated, and may order the Contractor to furnish any extra material and perform any extra work that the District may consider necessary or desirable for the proper construction and completion of the work Standard Specifications

59 41. EXTRA WORK Any work which, in the judgment of the Engineer, is not covered by the contract documents is extra work. The Contractor shall perform all such extra work when ordered in writing by the Engineer. In the absence of a written order by the Engineer, the Contractor shall not be entitled to payment for said work, other than at bid prices. The Contractor shall receive compensation for such extra work at the prices contained in the original proposal submitted by him and incorporated in the contract documents, insofar as such prices are applicable. Where existing contract bid items cannot be extended for payment of extra work, a change order will be executed between the District and Contractor. The change order will be on the District's Change Order Form an example of which is included as Exhibit A in Appendix C of these specifications. The remaining prices, either unit or lump sum, shall be agreed upon in writing by the Contractor and the Engineer. If the Contractor and the Engineer fail to agree upon prices, the Contractor shall be paid on a force account basis pursuant to Article 42. Payment for extra work will be included in progress estimates after execution of an approved contract change order. All bills or claims for extra work shall be filed in writing with the Engineer within 30 days after performance of such extra work. No bill or claim shall be valid unless claimed in writing within that time. In the event a dispute arises between the District and the Contractor as to what work is covered by the contract and what work is extra work, the Contractor shall proceed with the work per the direction of the Engineer as defined under Article 47, "Changed Condition and Hazardous Wastes." 42. FORCE ACCOUNT WORK When extra work payment is made on a force account basis, the labor, material and equipment used in performance of such work shall be subject to the approval of the Engineer and compensation determined as described in Section of the CALTRANS Standard Specifications in effect on the contract bid date, except as modified herein: The Contractor will be paid direct costs for labor and equipment used in performing the work at a minimum rate equal to the Department of Industrial Relations "Prevailing Wage Rate" for labor and at a rate equal to CALTRANS "Equipment Rental Rates" for equipment. Payment for force account work, as described herein, shall constitute full compensation to the Contractor and subcontractors for all direct and indirect costs related in any way to this work and its effect on other work already under the contract. The total payment, as indicated above, shall be deemed to be the actual cost of work and shall constitute full compensation for that work. No additional markup shall be made to reimburse the Contractor for administrative costs associated with work performed by its subcontractors or for bond fees Standard Specifications

60 On a daily basis, all force account work shall be reported on the District's "Daily Extra Work Report" sheets an example of which is included as Exhibit B in Appendix C of these Specifications. The report sheets shall be considered the Contractor's claim of the force account work done. Receipt or acknowledgment by the District of such report sheet does not constitute acceptability for payment or acceptance of "extra work" status for work. In case of any disagreement as to the amount of any force account work done and its value, the decision of the Engineer shall be final. The Contractor shall also submit photocopies of the applicable Department of Industrial Relations prevailing wage rate and CALTRANS equipment rental rate sheets, with the worker classifications and equipment used on the force account work highlighted, for District reference and attached to the appropriate report. In addition to the District's report sheets, the Contractor will be required to meet the submittal requirements of Article 24, "Certified Payroll and Cost Data". 43. ACCEPTANCE OF WORK When the Contractor is satisfied that all work is complete and ready for use, he shall notify the District in writing to that effect. Upon receipt of such notice, the Engineer will make a verification inspection. If the work is found to be satisfactory, the Contractor will be notified in writing and appropriate payment authorized. 44. WORK BEYOND COMPLETION DATE DOES NOT WAIVE DISTRICT S RIGHTS In the event that the District allows the Contractor to continue work beyond the original completion date or revised completion date modified by time extension(s), such action shall not constitute a waiver of the District s right to collect liquidated damages as provided or of any other rights of the District under the contract. 45. TERMINATION OF CONTRACT After giving the Contractor seven (7) days written notice, the District may, without prejudice to any other right or remedy, terminate the contract if: a. The Contractor files for protection under the Bankruptcy Act; b. a general assignment is made for the benefit of the Contractor s creditors; c. a receiver is appointed for the Contractor; d. the Contractor persistently or repeatedly refuses or fails to supply enough properly skilled workers or proper material; e. the Contractor fails to make prompt payment to subcontractors or for material or labor; f. the Contractor persistently disregards laws or regulations or the orders of the District; g. the Contractor is otherwise guilty of a material breach of any provision of the contract Standard Specifications

61 Upon contract termination, the District will take possession of the premises, all material, tools, and appliances and finish the work by whatever method it may deem expedient. The Contractor shall not be entitled to receive any further payment until the work is finished. If the unpaid balance of the contract price shall exceed the expense of finishing the work, including compensation for additional managerial and administrative services, such excess shall be paid to the Contractor. If such expense shall exceed such unpaid balance, the Contractor shall pay the difference to the District. All expenses incurred by the District and the damage incurred through the Contractor s default, shall be certified by the Engineer. 46. CANCELLATION OF CONTRACT District may, at any time, cancel this Contract and the Work hereunder, in whole or part, for District s convenience and without cause, upon written notice. Such written notice shall state the extent and effective date of such Cancellation, and on such effective date Contractor shall (1) to the extent directed, stop Work under this Contract, place no further orders and enter into no further subcontracts for materials, labor, services or facilities; (2) unless otherwise directed, cancel all subcontracts and orders; and (3) take such other actions as may be necessary or directed by the Engineer to protect and preserve the Work and any other property in Contractor s possession in which District has or may acquire an interest. In the event of Cancellation of the Contract pursuant to this Article 46, District shall pay to Contractor, as Contractor s sole and exclusive remedy, (1) the actual cost of the Work performed by Contractor prior to the effective date of Cancellation, including a reasonable markup on Contractor s actual cost for overhead and a reasonable cost for profit on the actual costs; and (2) such other direct costs pertaining to the Work which Contractor may incur as a result of such Cancellation as approved by District, less (3) payments made prior to the notice of Cancellation; provided, however, that in no event shall the total amount paid to Contractor pursuant to clause (1) exceed the lesser of (a) the Contract Price or (b) that portion of the Contract Price that the Work actually performed prior to the date of Cancellation bears to the entire Work. Any payment under this Article 46 shall be made only upon the expiration of the period within which stop notices may be filed under the laws of the State of California, or District s receipt of all requested statutory lien waiver and release forms, subject in either case, however, to withholding by District for reasons and in the manner provided in the Contract Documents pertaining to withholding of payments. Any dispute over the amount to be paid upon Cancellation shall be resolved in accordance with the dispute resolution provision of the Contract Documents. In the event of Cancellation of the Contract pursuant to this Article 46, Contractor shall, at District s request, assign to District all of its right, title and interest in and to all or some of the subcontracts of Contractor under this Contract Standard Specifications

62 Acceptance by Contractor of the payments referred to in this Article 46 shall operate as a complete release of all claims against District under the Contract Documents or otherwise for payment for construction of the Work. This release shall not apply to the contractor s claims for personal injury or property damage occurring prior to the Cancellation of the Contract. Contractor shall, as a condition of receiving the payments referred to herein, execute and deliver all papers and take all steps, including the legal assignment of its contractual rights as District may require for the purpose of fully vesting in District all rights and benefits of Contractor under such contracts. 47. CHANGED CONDITIONS AND HAZARDOUS WASTES The Contractor shall notify the Engineer in writing of the work site conditions listed below (called changed conditions), promptly upon their discovery and before they are disturbed, and immediately cease work in the affected area. a. Material that the Contractor believes may be material that is hazardous waste, as defined in Section of the Health and Safety Code, that is required to be removed to a Class I, Class II, or Class III disposal site in accordance with provisions of existing law. b. Subsurface or latent physical conditions differing materially from those represented in the Contract; and c. Unknown physical conditions of an unusual nature differing materially from those ordinarily encountered and generally recognized as inherent in work of the character being performed. The Engineer will promptly investigate reported or discovered conditions which appear to be changed conditions. If the Engineer determines that the conditions are changed conditions or involve hazardous waste or that they will materially increase or decrease the costs of any portion of the work, a change order may be issued adjusting the compensation for such portion of the work in accordance with the article called Extra Work (41). If the Engineer determines that conditions of which it has been notified by the Contractor do not justify an adjustment in compensation, the Contractor will be so advised in writing. Should the Contractor disagree with such determination, he may submit a protest to the Engineer (see Article 48). If the Engineer determines that the conditions are changed conditions and that they will materially affect the performance time, the Contractor, upon submitting a written request, may be granted an extension of time. In the event that a dispute arises between the District and the Contractor whether the conditions materially differ, or involve hazardous waste, or cause a decrease or increase in the Contractor s cost of, or time required for, performance of any part of the work, the Contractor shall not be excused from any scheduled completion date provided for by the contract, but shall proceed with all work to be performed under -24- Standard Specifications

63 the Contract. The Contractor shall retain any and all rights provided either by Contract or by law which pertain to the resolution of disputes and protests between the contracting parties. The Contractor s failure to give notice of changed conditions promptly upon their discovery and before they are disturbed shall constitute a waiver of all claims in that regard. 48. PROTESTS If the Contractor considers any work demand to be beyond the requirements of the contract, or if he considers any instruction, order, notice, ruling, omission or decision of the Engineer to be unfair, he shall file a written protest with the Engineer within 15 days after knowledge of the same. The protest shall clearly state the Contractor s objections, reasoning, and the nature and amount of any additional compensation or time extension to which the Contractor believes he is entitled. Unless such protests and objections are made of record in the manner and within the time stated above, the Contractor shall be deemed to have waived and does hereby waive all claims for extra work, damages, and extensions of time on account of demands, instructions, orders, rulings, omission and decisions of the Engineer. The only exception shall be for claims of extra work ordered in writing by the Engineer as provided in Article 41. Upon receipt of any such protest from the Contractor, the Engineer shall promptly review it and advise the Contractor in writing of his decision. This decision shall be final and binding on all parties, unless the Contractor files a formal claim with the District. 49. CLAIMS If the Contractor does not agree with the Engineer s decision regarding a protest, he may file a formal written claim within 15 days of the Engineer s written decision. Failure to submit and document a claim in the manner and within the time stipulated in this article shall constitute a waiver of all claims in connection with the underlying protest. No claims will be accepted after acceptance of final payment. In addition to information provided in the protest, the claim shall include references to applicable provisions of the specifications, computations used in determining claimed compensation, and other pertinent factual data. The Contractor shall maintain complete and accurate records of his activity and costs for which compensation is claimed. He shall also provide certified copies of his records to the Engineer upon request. The Contractor shall have no claim for loss of anticipated profit on portions of the work not performed or for interest on any payment which is the subject of the claim. For claims exceeding $375,000, the District s General Manager shall consider the claim and render a final decision on any such claim within 30 days of receipt. All claims of $375,000 or less shall be submitted pursuant to the above procedure with exceptions noted below. Claims shall be in writing and shall include the -25- Standard Specifications

64 documents necessary to substantiate them. The Contractor shall comply with all notice requirements otherwise provided in this contract for the filing of claims. a. Claims under $50,000. (1) District will respond in writing to any written claim within forty-five (45) days of receipt, or may request in writing, within thirty (30) days of receipt of the claim any additional documentation supporting the claim or relating to defenses to the claims the District may have against the claimant. (2) If additional information thereafter is required, it shall be requested and provided through the mutual agreement of the District and the claimant. (3) The District s written response to the claim will be submitted to the claimant within fifteen (15) days after the receipt of the further documentation or within a period of time no greater than that taken by the claimant to produce the additional information or requested documentation, whichever is greater. b. Claims over $50,000, but under $375,000. (1) The District will respond in writing to any written claim within sixty (60) days of receipt, or may request, in writing within thirty (30) days of receipt of the claim, any additional documentation supporting the claim or relating to defenses to the claim the District may have against the claimant. (2) If additional information is thereafter required, it shall be requested and provided through mutual agreement of the District and the claimant. (3) The District s written response to the claim will be submitted to the claimant within thirty (30) days after receipt of the further documentation, or within a period of time no greater than that taken by the claimant to produce the additional information on requested documentation, whichever is greater. c. District post-response procedure. (1) If the claimant disputes the District s written response, or the District fails to respond within the time proscribed, the claimant may notify the District in writing either within fifteen (15) days of receipt of the District s response or within fifteen (15) days of the District s failure to respond within the time prescribed and demand an informal conference to meet and confer for settlement of the issues in dispute. Upon a demand, the District shall schedule a meet-and-confer conference within thirty (30) days for settlement of the dispute Standard Specifications

65 (2) If following the conference, the claim or any portion remains in dispute, the claimant may file a claim as provided in Chapters 1 and 2 of Part 3 of Division 3.6 of Title 1 of the Government Code. 50. USE OF IMPROVEMENT DURING CONSTRUCTION The District reserves the right to take over and utilize all or part of any completed facility or appurtenance. When possible, the Contractor will be notified in advance of such action. Such action by the District will relieve the Contractor of responsibility for injury or damage to said completed portions of the improvement resulting from use or from the action of the elements or from any other cause, except injury or damage resulting from the Contractor s operations or negligence. The use by the District of the work or part thereof as contemplated in this section shall in no case be construed as constituting acceptance of the work or any part thereof. Nothing in this section shall be construed as relieving the Contractor from full responsibility for correcting defective work or materials. 51. SAFETY a. General Requirements The Contractor shall be solely and completely responsible for conditions on the job site, including safety of all persons and property during the performance of the work. This requirement shall apply continuously and not be limited to normal working hours. The Contractor s safety provisions shall conform to all applicable Federal, State, County and local laws, ordinances and codes and to the rules and regulations established by the California Division of Industrial Safety and to other rules of law applicable to the work. In particular, the project is subject to all of the Safety and Health Regulations (CFR 29, Part 1926 and all subsequent amendments) as promulgated by the U.S. Department of Labor and CFR 29, Part 1910 and all subsequent amendments, to include 29 CFR 1926 Subpart M (Amended) and Subpart P (Amended) October 31, 1989, General Industry Safety and Health Regulations Identified As Applicable to Construction, and all Cal OSHA regulations under Title 8 applicable to construction safety. The Contractor shall become familiar with the requirements of these regulations, paying special attention to the items listed below. b. Injury Illness Prevention Program (IIPP) In accordance with OSHA regulations, the Contractor shall have an IIPP in effect during construction. A copy of the IIPP shall be forwarded to the District prior to construction startup and a copy shall be present on the construction site(s) at all times during work under this contract. The District will have no responsibility to review the IIPP or to determine its adequacy. This is the Contractor s responsibility. c. Competent Person The Contractor shall have a competent person or persons, as required under the Occupational Safety and Health Act, on each work site to inspect the work and to supervise the conformance of the Contractor s operations with the regulations of the Act. Prior to work start up, -27- Standard Specifications

66 the Contractor shall supply the District with a list of all the competent persons (see definition) in his employment. d. Safety Equipment The Contractor and each of his employees shall use hard hats, orange safety vests and other required safety equipment while on the project site(s) or as directed by the Engineer. No person shall be allowed in the construction zone without proper safety equipment. e. General Procedure The following procedure will be used in regard to field decisions and requirements of the Contractor and the District: (1) The Contractor shall have a certified competent person on the job site and available to render safety decisions and take immediate action to correct any potential safety problems as they arise. If the District inspector observes potential safety problems, the Contractor s representative will be notified. (2) If an imminent hazard (defined as a condition that will most likely result in an accident causing severe or permanently disabling injury or death) is detected by either the Contractor or the inspector, the Contractor shall cease work in the affected area and proceed on other work until the safety problem is corrected. In the case of the inspector suspending work, the Contractor will be issued an order to suspend work in the affected area until the conditions are such that the safe continuance of work is possible. The Contractor shall not receive payment or have a basis for a claim for moving his resources to another part of the work or for correction of the problem. The inspector will document the incident in his daily report and take photographs of the condition and the site. District management will be notified of the condition and the action taken. (3) If a condition exists that is currently not an immediate danger to persons in the construction zone, but has the potential, if not corrected, to become an imminent hazard, the inspector will notify the Contractor in writing of the condition. The letter should also state a reasonable time for correction by the Contractor, after which the condition will be considered an imminent hazard. If the Contractor does not correct the dangerous condition or it is developing into an imminent hazard, the District will consider suspension of the affected portion of the work until the condition is corrected. The District will notify the Contractor, in writing, of such a suspension, and the Contractor shall not be entitled to additional payment for correction of the condition or for moving on to other work. (4) If a condition arises that could cause minor injuries or is small in nature, but is still a threat to health, the inspector will advise the Contractor of the condition and of the necessity to eliminate it. If the Contractor continues to allow the condition to persist, the District may notify the Contractor in writing and the Contractor may be considered non Standard Specifications

67 responsive on future bid proposals. The Contractor shall not be entitled to additional payment for remedying these conditions. 52. CONTRACTOR S OFFICE AT THE WORK SITE Throughout the performance of the contract, the District may require that the Contractor maintain a work site office where the Contractor s representative who is authorized to receive instructions, drawings, or other communications from the Engineer will be located. In the representative s absence, delivery to such office shall be deemed to have been given to the Contractor. 53. CONTRACTOR S SUPERINTENDENTS OR FOREMEN The Contractor shall at all times during his absence be represented on the work by one or more superintendents, foremen or other representatives authorized and competent to receive and carry out any instructions that may be given to him (them) by the Engineer. The Contractor shall be liable for the faithful observance of any instructions delivered to him or to such representative(s) on the work. 54. CONTRACTOR S EMPLOYEES The Contractor shall employ only competent and skillful workers on the work. Upon notice, the Contractor shall immediately discharge any worker that in the judgment of the Engineer is incompetent, unfaithful, disorderly, or refuses to carry out the provisions of the contract, uses threatening or abusive language to any person on the work representing the District or is otherwise unsatisfactory. That worker shall not be re-employed on the work without the consent of the Engineer. 55. USE OF DRUGS The Contractor shall not permit alcoholic beverages, narcotics, hallucinogenic or other dangerous drugs nor the presence of employees or subcontractors employees under the influence of such drugs about the work, or upon any area occupied by him in the prosecution of the work. Drugs for medicinal purposes will be allowed if they do not impair work performance or job safety. 56. NIGHT AND WEEKEND WORK If at any time the Engineer deems it necessary for proper progress of the work, the Contractor may be required to prosecute the work at night or on weekends. In addition, if the Contractor requests to do work at night or on weekends, he may be allowed to do so if approved by the Engineer. The Contractor shall bear all costs for inspection of night and weekend work unless otherwise indicated in writing by the Engineer. The Contractor shall receive no extra payment on account of doing work at night or on weekends. No such work shall be done unless previously approved in writing by the Engineer Standard Specifications

68 57. WORKING HOURS AND OVERTIME WORK Unless otherwise required by the Specifications, all work shall be accomplished during normal District working hours are 7:00 AM to 4:30 PM, Monday through Friday, excluding holidays observed by the District (See Appendix A). The Contractor shall keep the Engineer fully informed of all work outside these working hours in order to assure proper scheduling of required inspection and materials testing personnel. The Contractor shall make written request for inspection on District observed holidays and shall only work if an inspector can be provided. The costs of inspection of such work will be charged to the Contractor and will be deducted from any payment due him. All inspection work and vehicle usage outside the regular working hours as described above or beyond eight hours per day on any particular job, will be charged at each inspector s current overtime rate with applicable overhead and vehicle rates, respectively. 58. PROTECTION OF WORK, PERSONS AND PROPERTY AGAINST DAMAGE The Contractor shall protect his work and material from damage due to the nature of the work, the action of the elements, the carelessness of other contractors, or any other cause, until the completion and acceptance of the work. Should any damage occur, he shall repair it at his own expense to the satisfaction of the District. Neither the District nor any of its agents assumes any responsibility for collecting indemnity from any person, or persons, causing damage to the work of the Contractor. The Contractor shall bear all responsibility for personal injuries, death or property damage caused by or arising from his performance under the contract. Whenever reasonably necessary to prevent the same, the Contractor shall furnish guards, fences, warning signs, walkways, lights, barricades, and any other necessary precautions. All efforts shall be made by the Contractor to avoid damage to trees and other plants. All landscaping, including but not limited to lawns, trees, shrubs, fences, driveways, walkways and paths shall be restored as nearly as practicable to their original state. All safety orders, rules and recommendations of the District, the City, or County in which the work is to be done, and the State of California Division of Industrial Safety and the Occupational Safety and Health Administration (OSHA) applicable to the work to be done under this contract, shall be obeyed and enforced by the Contractor. No order or direction of the Engineer or any other representative of the District shall relieve the Contractor of any such responsibility. The Contractor shall bear all responsibility for determining any possible fire hazard in the area in which work is to be performed and shall observe all rules and regulations of the responsible fire department or jurisdiction. In the event a fire is started by the Contractor, the work force on the site shall be at the disposal of the fire fighting agencies for purposes of checking and extinguishing the fire. In such an event, there shall be no claims against the District, the City, the County or the State and all claims for damage shall be the responsibility of the Contractor. As a result of required study and investigation (Article 1 of Information and Instructions), the Contractor acknowledges that he has fully considered all risks, -30- Standard Specifications

69 hazards and safety measures particular to this contract. If at any time it appears that the proposed work or installations will create or cause any risk to persons or property, the Contractor shall assume all responsibility to avoid and eliminate such hazard or risk and shall take such additional steps and provide such additional safety measures as are reasonably required to eliminate them. The District may, at its option, retain monies due under the contract until all suits or claims for damages have been finally resolved by satisfaction of judgement or settlement and satisfactory evidence to that effect is furnished to the District. 59. PROTECTION OF EXISTING FACILITIES, UTILITY RELOCATION, EQUIPMENT SIZING AND FLUID LEAKAGE The Contractor shall protect all District pipes, facilities and roads near the work. Any damage to District facilities by the Contractor shall be repaired to an equal or better condition than what exists at the time of damage. The District will only assume the financial responsibility for timely removal, relocation, or protection of existing main or trunkline utility facilities located on the construction site which are not identified with reasonable accuracy in the contract documents. This does not include non-pressurized sewer, storm drain and drainage lines. The Contractor shall be compensated in accordance with Article 41 for the costs of locating, repairing damage not due to the Contractor s negligence and removing or relocating such facilities. Upon learning of the existence and location of any utility omitted from or shown incorrectly on the plans, or not properly field marked, the Contractor shall immediately notify the Engineer in writing. The Contractor shall bear all responsibility for removal, relocation, or protection of all other existing facilities, utilities, underground structures and private property in the work area. He shall at all times prosecute his work so as not to damage said facilities, utilities, structures or property nor interfere with their safe operation and use. The Contractor shall hire a traffic signal location company to locate and mark all wires for electrical traffic signals prior to trenching. Costs for this labor shall be included in appropriate bid items under this contract. Whenever existing utility mains, laterals, conduits, ducts, pipes, or structures are in conflict with the grade and alignment of the work, they shall be permanently supported, removed, relocated or reconstructed by the Contractor through cooperation with the owner of the obstructing facility. When working close to existing underground facilities the Contractor shall protect the facilities encountered. Except as specified above, the cost of repairing, replacing or protecting these facilities shall be borne by the Contractor. If in the judgment of the Engineer the Contractor is not taking proper precautions, the -31- Standard Specifications

70 District shall proceed to have the facilities properly protected and, except as specified above, the cost of protection will be deducted from the total amount due the Contractor. Should any such facilities, utilities, structures or property be damaged during the Contractor s operations, he shall immediately notify the property owners or proper authorities and arrange for immediate repair at his expense. In accordance with the provisions of the Section 4215 of the California Government Code, the Contractor shall not be assessed liquidated damages for delaying completion of the project, when such delay was caused by the failure of the public agency or owner of the utility to provide for the removal or relocation of such utility facilities. It shall be incumbent on the Contractor to make a thorough investigation of the job site and to size the equipment accordingly. The Contractor shall select equipment to avoid damaging existing facilities, which include, but are not limited to: street paving, pipes, traffic controls, sidewalks, plant material, landscaping, curbs and gutters, retaining walls, etc. Any damage shall be restored by the Contractor at no cost to the District. If equipment fluid leakage (e.g. hydraulic fluid, oil) stains any street in excess of five occurrences with a total area of more than 20 square feet, then the Contractor shall, at his cost, be required to slurry seal (CALTRANS-Section 37.2) that street within limits specified by the local jurisdiction or the Engineer. Sidewalks and driveways shall be repaired as specified by the local jurisdiction or the Engineer. 60. ILLUMINATION OF WORK When any work is performed at night, in a tunnel or in a place where there is little or no daylight, the Contractor shall provide artificial light sufficient to prosecute the work properly and safely and to permit thorough inspection. 61. TRAFFIC CONTROL During working hours, two-way traffic shall be maintained on all traveled roadways in the construction zone. Whenever the traveled way is reduced to one lane, the following conditions shall be met: a. Proper traffic control shall be in effect at all times as described in the updated 1977 Manual of Traffic Controls, published by the California State Department of Transportation. b. There shall be two full-time flagpersons, one at each end of the work area. Each flagperson shall be equipped with an orange vest, STOP/SLOW paddle and an orange flag. In addition, portable radio communication shall be used as directed by the Engineer Standard Specifications

71 c. ** Signs warning motorists of the upcoming obstructions shall be placed an adequate distance ahead of the work area. Proper coning, as determined by the Engineer, shall be maintained to direct traffic safely. d. ** Failure to comply with the above rules or to maintain traffic control in a safe manner shall be cause for the immediate shutdown of the work. ** To be in effect at all times. The Contractor shall furnish all necessary flagpersons and traffic control equipment in the areas where work is being performed and routing and directing of traffic is required. The areas in which flagpersons are required, the number of flagpersons, and the amount of traffic control equipment, shall be determined by the Engineer. All temporary surfacing shall conform to existing pavement elevation as precisely as practicable. Prior to final paving, the Contractor shall maintain temporary paving surfaces to insure safe, convenient travel by users of the roadway. Temporary paving shall be patched on a daily basis as directed by the Engineer. 62. ROAD ACCESSIBILITY No roads shall be blocked or made inaccessible, due to the Contractor s work, without prior written approval of the Engineer and the affected agencies. The length of trench excavation in advance of the pipe laying operation and amount of ditch remaining open without backfill will be regulated by the Engineer in accordance with field conditions. Any such requirement placed on the Contractor shall not be considered as a claim for delay of work. 63. PUBLIC INCONVENIENCE The Contractor shall take all necessary steps to minimize inconvenience to the general public throughout all work under this contract. No driveways or private roads shall be blocked without notifying the property owner and access must be restored during all non-working hours. Safe access must be maintained for pedestrian traffic throughout the work at all times. At least one lane of the street must be kept open at all times unless prior arrangements have been made with all involved parties. All stockpiled material and parked equipment at the job site shall be located to avoid interference with private property and to prevent hazards to the public. Locations of stockpiles and parking areas must be approved by the Engineer. 64. DRAINAGE PROTECTION If the proposed work may be performed during the rainy season, the Contractor shall act to maintain existing drainage facilities by working carefully around them Standard Specifications

72 He shall not divert water on private land nor permit water to pond. He shall not inconvenience the public or jeopardize its safety. 65. DUST ABATEMENT At all times during work performance, the Contractor shall exercise proper and efficient measures to prevent his operations from producing dust in amounts which may cause damage to property or a nuisance to persons in the general vicinity of the work. Water to settle the dust may be available from the District s facilities. If District water is not available, the Contractor, at his expense, shall arrange for alternate water sources. 66. HAULING OVER CITY STREETS, COUNTY ROADS, AND ALL HIGHWAYS The Contractor shall obtain all required permits for hauling over City streets, County roads and State or interstate highways. He shall strictly follow permit requirements, particularly load limitations. Full responsibility for hauling shall be borne by the Contractor. 67. CLEAN UP During the progress of the work, the Contractor, on a daily basis, shall keep all his work areas in a neat and clean condition. As directed by the Engineer, refuse, excess backfill materials and other undesirable material shall be removed in a satisfactory manner as often as may be necessary to prevent any accumulation of such materials. The discharge of solid or liquid waste materials into stream channels from the construction area will not be permitted at any time. Any substances which are individually, cumulatively or collectively considered toxic or harmful to humans, wildlife, vegetation or aquatic biota, shall be kept under control at all times and must not be allowed to escape the construction area. All such substances shall be completely contained during transportation and storage, and used safely without spillage. Following the completion of any portion of the work, the Contractor shall promptly remove all of his equipment, temporary structures and surplus material, except as otherwise provided, and shall satisfactorily dispose of all refuse resulting from the work, leaving the premises in a neat and clean condition. Each job site shall be clean at the end of each working day. The Contractor shall remove all dirt, debris, material, etc., which might be an inconvenience or hazard to vehicular or pedestrian traffic. All clean-up operations shall be done to the satisfaction of the Engineer, and final clean-up shall not lag behind the completion of the construction operation by more than three working days. The District reserves the right to authorize, without notice to the Contractor, cleanup of a site if necessary. Costs for such action shall be borne by the Contractor Standard Specifications

73 68. CONSTRUCTION ACCESS Construction access will be via city streets, country roads and District roads as shown on the Contract Drawings. Keys to gates necessary for access within the District watershed lands will be furnished to the Contractor by the District. Keys shall not be duplicated. All keys issued to the Contractor shall be returned to the Engineer as a condition for processing final payment. In the event keys are lost, the sum of $ will be deducted from the final payment for each and every key not returned. Gates shall be kept locked when not in use by the Contractor unless they are opened for District operations. 69. MATERIAL TO BE OBTAINED FROM THE DISTRICT When indicated in the Contract Documents, certain material will be provided by the District to the Contractor. This material shall be obtained by the Contractor at the District s yards in Corte Madera or San Rafael, California, or other designated sites. The Contractor shall provide all labor, tools, material (i.e. dunnage, tie downs, etc.) and equipment necessary for loading, hauling and unloading material from the storage points to the job sites. By signing the requisition paperwork, the Contractor verifies that the material received from the District is of satisfactory quality for installation. The Contractor shall be responsible for proper and careful handling of all material from the time it is obtained until it is properly and completely installed and accepted by the District. Any damage to material during this time shall be the Contractor s responsibility and he will bear all costs of repairing or replacing such material. Prior to commencement of work under the contract, material to be furnished by the District will be issued only upon written request by the Contractor if submitted to and countersigned by the Engineer at least 4 working days prior to furnishing of such material. No material will be issued until the Notice to Proceed is issued by the District. After work has commenced the Contractor shall give the District at least a 24-hour notice prior to drawing of material. Receipts for material which are signed by the bearer of the request shall be conclusive evidence of the delivery of the specified material to the Contractor. It is the Contractor s responsibility to verify that the material obtained from the District is of proper quantity to complete the intended portion of work prior to starting that portion of work. All excess material shall be returned undamaged to the point from which they were obtained within 5 working days after written request by the Engineer. All damaged material will be charged to the Contractor. Unless otherwise specified, the District will furnish reasonable quantities of free water as required for approved or specified construction purposes. Water will be provided from District facilities through the inspector s construction meter. Use of fire hydrants is subject to permission from the applicable local fire jurisdiction and operation of hydrant valves will not be permitted. Care shall be exercised in drawing water from District facilities and the Contractor shall comply at all times -35- Standard Specifications

74 with instructions from the Engineer in this regard. The Contractor shall be liable for any damage or waste resulting from improper drawing of water. 70. RESPONSIBILITY FOR MATERIAL The Contractor shall be responsible for all material that he furnishes and shall replace at his own expense all such material found to be defective in manufacture, damaged in shipping or damaged in handling after delivery by the manufacturer. This shall include the furnishing of all material and labor required for the replacement of such defective material. The Contractor s responsibility for material furnished by the District shall begin at the point of delivery to the Contractor. Material already on the site shall become the Contractor s responsibility at the time the Notice to Proceed is issued for the contract. The Contractor shall examine all material furnished by the District at the time and place of delivery to him and shall reject all defective material. Any material furnished by the District and installed by the Contractor without discovery of such defects will, if found defective prior to final acceptance, be replaced with sound material by the District. However, the Contractor, at his own expense, shall furnish all labor and equipment necessary to remove said defective material and install the sound material in a manner satisfactory to the Engineer. 71. SALVAGE OF MATERIAL During the work all salvageable material, equipment or appurtenances which are removed from existing facilities shall remain the property of the District and shall be returned to the District yard. The determination of which material is salvageable shall be made by the Engineer whose decision shall be final. Material which is not designated salvageable shall become the property of the Contractor and be removed from the site of the work. 72. SAMPLES AND TESTS OF MATERIAL AND WORK Upon request of the Engineer, the Contractor, at his own expense, shall prepare and furnish samples and test specimens of any material not obtained by the District and identify the source of such material. All samples shall be submitted with ample lead time to enable the Engineer to make any tests, analyses or examinations the Engineer deems necessary prior to incorporation of such material into the work. All tests of the completed work required by the specifications shall be made by the Contractor under the direction of the Engineer. In addition to bearing the costs of testing, the Contractor, at his own expense, shall repair all damages to the work resulting from test failure. In order that the District may determine the Contractor s compliance with contract requirements that are not readily enforceable through inspection or tests of the -36- Standard Specifications

75 work and material, the Contractor shall, upon request, submit to the Engineer properly authenticated documents or other satisfactory proofs of compliance with such requirements. 73. DEFECTIVE MATERIAL AND WORKMANSHIP Material, work or workmanship which, in the judgment of the Engineer, do not conform to the specifications and drawings, are not equal to the samples submitted to and approved by the Engineer, or are in any way unsatisfactory for their intended purpose shall be rejected. The Contractor shall remove all rejected material from the work without delay. If the Contractor fails to do so within 48 hours after having been so directed by the Engineer, the rejected material may be removed by the District and cost of removal charged against the Contractor. No payments shall be made until such material is removed. Unsatisfactory material and workmanship may be rejected at any time during the progress of the work, regardless of any previous testing, inspection or acceptance of such material or workmanship or inclusion thereof in estimates for payments. 74. PATENTS All fees or claims for use of any patented invention, article or arrangement that is in any manner connected with the performance of the proposed work shall be included in the price bid for doing the work. The Contractor and his Sureties shall indemnify, hold harmless, release and defend District, its agents and employees from: (1) all demands made for such fees or claims; and (2) all suits and claims by the holder of any invention or patent or growing out of any alleged infringement of any patent. Before final payment is made, the Contractor shall furnish acceptable proof to the District of a proper release from all such fees or claims. 75. MATERIAL EQUIVALENCE Whenever any article or class of materials is specified by a trade name, or by the name of a particular patentee, manufacturer, or dealer, the requirements of the specifications will be satisfied by the use of either the specified item or any other item that the Engineer determines is equal in quality, finish, durability, and serviceability for its intended purposes. Unless otherwise specified, the Contractor shall have 35 days after the award of the contract to supply material submittals or for submission of data substantiating a request for a substitution of an or equal item where the District has specified a brand or trade name in these specifications. If, upon District review, the item is determined not to be equal in any way with specified items, the Contractor will be notified in writing and shall have ten days from notification to submit an alternate item. Failure to meet any of these times for submittal will result in the Contractor agreeing to use specified items Standard Specifications

76 In those instances where the Contractor opts to use a product that has been designated to match others then in use in any particular District improvement either completed or in the course of construction, no submittals shall be required. 76. MATERIAL SAFETY DATA SHEET (MSDS) Attention is directed to the provisions of General Industry Safety Orders, Section 5194, Title 8, California Administrative Code. The Contractor shall submit to the Engineer a Material Safety Data Sheet for each hazardous substance proposed to be used on the work, ten days prior to the delivery of such material to the job site or use of such material at a manufacturing plant where the engineer is to perform an inspection. For materials which are to be tested in District laboratories, the MSDS shall be submitted with the sample(s). A hazardous substance is defined as any substance included in the Director s List of hazardous substances prepared by the Director, California Department of Industrial Relations, pursuant to Labor Code Section Failure to submit an MSDS for any hazardous substance may result in actions as provided in Articles 45 and 46 of these Specifications regarding termination and cancellation of contract. 77. PROGRESS PAYMENTS Monthly progress payments will be made, based on the prorata value of the actual work completed as 30 days after the Notice to Proceed, and every 30 days thereafter. The Engineer shall make an estimate of the total amount of work completed and the value of such completed work at the contract price. Unless otherwise stipulated in the Special Provisions, no allowance will be made for materials furnished by the District and delivered but not incorporated into the work. Payment will be authorized and forwarded at the earliest practicable date, but no interest or damages shall be paid by the District for delays in payment of any progress payments. The District shall retain 5% of the estimated value of completed work as security for the fulfillment of the contract by the Contractor. The Contractor shall be paid the balance of the progress payment after deduction of all previous payments and sums to be retained under the provisions of the contract. In compliance with Public Contracts Code section 22300, the Contractor may substitute securities for monies withheld by the District to ensure performance under this contract. Securities eligible for investment under this article shall include those listed in Government Code section 16430, bank or savings & loan Certificates of Deposits, interest bearing demand deposit accounts, standby letters of credit, or any other security mutually agreeable to the Contractor and the District. The escrow agreement for security deposits in lieu of retention shall be in a form substantially similar to that specified in Public Contracts Code section District control of securities or accounts will be released upon satisfactory completion of the contract (see Article 79 - Final Estimate and Payment). Alternately, the Contractor may request that the District make payment of retention directly to an escrow account at the expense of the Contractor Standard Specifications

77 No progress payment shall be made, if in the judgment of the Engineer, the work is not proceeding according to the provisions of the contract or the total value of the work done since the last estimate amounts to less than $500. Progress payments shall not be construed as an acceptance or approval of any part of the work and shall in no manner relieve the Contractor of responsibility for defective workmanship or materials. Progress payments shall not operate to invalidate any of the provisions of the contract or to release the surety. 78. RETENTION OF SUMS, CHARGED AGAINST CONTRACTOR It is mutually understood and agreed that any charges by the District against the Contractor in accordance with contract provisions shall be deducted and retained by the District from any monies due or that may become due the Contractor. 79. FINAL ESTIMATE AND PAYMENT When all work is complete and acceptable in accordance with the contract, the Engineer will make final measurements of the amount of work performed, and complete a final payment determination based on the contract prices and the provisions of Article 77(Progress Payments). The District will pay the Contractor the balance due or will release held securities or accounts 35 calendar days after the Notice of Completion is recorded. The payment determination of the Engineer shall be final and conclusive evidence of the amount of work performed by the Contractor under the contract and shall be taken as the full measure of compensation to be received by the Contractor. Acceptance and/or payment shall not release or modify the guarantee and maintenance bond. 80. WORK TO BE DONE WITHOUT DIRECT PAYMENT Wherever it is specified that the Contractor is to do work or furnish material of any class for which no price is fixed in the contract, it shall be understood that such work or material shall be provided without additional charge, allowance or direct payment of any sort. The cost of such items is to be included in bid prices under related items requiring such work or material. 81. PAYMENT FOR INCREASED OR DECREASED QUANTITIES When alterations in plans or quantities of work are ordered and performed, the Contractor shall accept payments in full at the contract unit prices for the actual quantities of work done and no allowance will be made for anticipated profits Standard Specifications

78 82. LIQUIDATED DAMAGES FOR CONTRACTOR S DELAY If the completion of the work is delayed beyond the completion time set forth in the contract documents, or such extension(s) of time as may be allowed by reason of unavoidable delays, the District shall deduct from the total contract price the sum indicated in the contract documents for each calendar day of delay. It is further understood and agreed that said sums shall be considered not as penalties, but as liquidated damages. It is agreed that said sums represent a reasonable good faith effort to fix a fair compensation to the District for the estimated actual damages which will be incurred by the District due to any such delay. Any money which is due or to become due to the Contractor may be retained by the District to cover said liquidated damages, and should such money not be sufficient to cover such damages, the District shall have the right to recover the balance from the Contractor or his sureties with legal interest from the date(s) such delay occurred. The Contractor acknowledges that he understands, agrees, and has ascertained by his own investigation that (1) the District will suffer actual damages in the event completion of the work is delayed beyond the completion time set forth in the contract documents, (plus any extension(s) of time as may be allowed by reason of unavoidable delays); and (2) the sum for liquidated damages indicated in the contract documents, is a reasonable estimate of fair compensation to the District for its estimated actual damages in case of such delay since it would be impractical or extremely difficult to fix the actual damages in the event of such delay. 83. METHOD OF COMPUTING LIQUIDATED DAMAGES In determining the number of days for which liquidated damages are applicable, the Engineer will add to the contract completion date the number of days of unavoidable delay, if any, which the District determines to have occurred in the prosecution of the work. This corrected date shall be taken as the date allowed under the contract for the completion of the work. The number of calendar days elapsing between the corrected date for completion and the actual date of completion will be multiplied by the number of dollars per day for liquidated damages (as specified in the contract documents) to determine deductions from the contract price. 84. CONTRACTOR TO SERVE NOTICE OF DELAYS Whenever the Contractor experiences or foresees any delay in the prosecution of the work, he shall immediately notify the Engineer in writing of the actual occurrence or probability of such delay and its cause and request a time extension. This will allow the District to take immediate steps to prevent, if possible, the occurrence or continuance of the delay. In addition, the District will be able to -40- Standard Specifications

79 determine how long it may continue, to what extent the prosecution and completion of the work will be delayed, whether any delay is unavoidable and the appropriate length of time extension to be granted, if any. After the completion of some or all of the work, the Engineer, in estimating the amount due the Contractor, shall determine that no delays which occurred were unavoidable except for those promptly brought to the Engineer s attention in writing at the time of their occurrence and determined by the Engineer to have been unavoidable. The Contractor agrees that no claim for time extension or unavoidable delay will be made for any delay that was not promptly reported to the Engineer as required in this Article. 85. EXTENSIONS OF TIME The District may grant the Contractor additional time for completion beyond that specified in the contract if in the District's judgement work completion has been or will be delayed as a result of unavoidable delays (see Article 86). In such cases, the District will grant such additional time for completion as it finds reasonable and commensurate with the unavoidable delay. Evaluation of contract delays will only be considered upon contract completion. 86. UNAVOIDABLE DELAYS Unavoidable delays in the work prosecution or completion are all delays resulting from causes beyond the Contractor's control which he could not reasonably have anticipated and mitigated or avoided by the exercise of care, prudence, foresight, and diligence and which actually and necessarily cause a delay in the completion of the whole work. Any delay which results from District changes in the amount of work to be done, the quantity of material to be furnished, the manner in which the work is prosecuted or the schedule of other forces working concurrently for the District, or any delay caused by the District's or another utility owner's failure to provide for removal or relocation of existing main or trunkline utility facilities located on the construction site which are not identified with reasonable accuracy in the contract documents, will be defined as right-of-way delays and will be paid for as outlined below. Right-of-way delays will be considered unavoidable to the extent that they actually and necessarily delay the Contractor's completion of the whole work. Unavoidable delays do not include delays caused directly or indirectly by the default, delay, or other breach of the Contractor. Delays due to adverse weather conditions will be regarded as unavoidable only to the extent that they actually and necessarily cause a delay in completion of the whole work and to the extent that such conditions could not reasonably have been anticipated and mitigated or avoided by the exercise of care, prudence, foresight, and diligence. Right-of-Way delays will be defined and paid for in accordance with CALTRANS Section "Right of Way Delays", as modified in Article 42, Force Account Work Standard Specifications

80 87. CONTRACTOR INVESTIGATIONS a. In addition to requirements of applicable Laws and Regulations, including California Government Code Section 4216 as referenced in Article 3.07, Laws and Regulations, and prior to commencement of the work, the Contractor shall make its own investigations, including exploratory excavations, to determine the locations and type of existing underground facilities, service laterals or appurtenances when their presence can be inferred from the presence of other visible facilities, such as buildings, meters, manholes, sewer clean-outs, and junction boxes on or adjacent to the site of the work. b. In addition to exposing all mains, trunk lines, electrical lines, and conduits that cross the to-be-installed pipelines, the Contractor shall expose shown or inferred service laterals, appurtenances, and other inferred underground facilities, which might interfere with construction of the work, including connection locations to the existing system. c. Where the Contractor discovers underground facilities not identified in the Contract Documents, or in a position different from that indicated on the Contract Documents, the Contractor shall immediately, notify in writing, the Engineer and the owner or operator of the underground facility. The Engineer will determine what changes in grade, if any are required, and the contractor will be entitled to no additional payment other than at bid items prices from the contract. d. Prior to installing a service lateral using a punch tool trenchless technique, the Contractor must locate and ascertain the depth of all conflicting utilities. The Contractor shall clearly mark the depth and location of conflicting utilities. For sanitary sewer and storm drain facilities, the Contractor can utilize existing evidence of depth, such as manholes. For all other utilities, the Contractor shall use a pipe locator with a depth indicator. The Contractor is responsible for installing the service without damaging any other utilities. e. Any damage to District facilities by the Contractor shall be repaired to an equal or better condition than what exists at the time of damage. 88. SMOKING Smoking will not be allowed at any District facilities or on any of the District s Watershed Lands. 89. COMMUNICATION During the performance of this Contract, the Contractor, or an on-site representative, shall be accessible during normal working hours by telephone, to receive instructions or other communication from the District. The Contractor shall maintain communication with the District through a cellular phone or shall respond to calls sent to a pager/beeper. The Contractor shall provide either a cellular -42- Standard Specifications

81 phone or a pager and shall supply the District with the appropriate telephone number for communication. 90. STORAGE OF MATERIALS, EQUIPMENT AND VEHICLES The Contractor shall take all responsibility for storage of material, equipment and vehicles at the job site. Material and equipment for incorporation in the project shall be protected, handled, and stored as appropriate. Material, equipment and vehicles shall be stored only in areas and in a manner approved by the District and by the local town, city, or county. The Contractor shall not store material, equipment and vehicles on either public or private lands without expressed written consent from the owner of the lands. Tools and equipment may be stored within District facilities provided it does not hinder access to, or operation of, equipment that is in service. 91. USA NOTIFICATION AND UTILITY FIELD MEETING The Contractor shall contact Underground Service Alert (USA) ( ) seven (7) calendar days prior to start of work and shall be responsible for maintaining a valid USA location tag through renewal during the construction. The Contractor shall schedule a utility field meeting prior to any excavation. This shall be so stated in the USA Notification. The Contractor shall be responsible to coordinate the utility field meeting at which time he shall explain the limits and impacts to USA member utilities. In addition, the Contractor shall expose all existing utilities along the work prior to work startup in order to verify the accuracy of utility markings. Any changes resulting from a failure to contact USA shall be the Contractor s responsibility. 92. COMPLIANCE WITH ENVIRONMENTAL LAWS During construction, the Contractor shall comply with all pertinent requirements of Federal, State, and local environmental laws and regulations, including, but not limited to the Federal Clean Air Act, State and local air pollution, water polution and noise ordinances, and construction site erosion control regulations. The Contractor shall submit an erosion control plan to the Engineer prior to construction and must have erosion control in place at least 48 hours prior to construction. 93. TESTS a. General Where the Specifications require work to be specially field tested or approved, it shall be tested only in the presence of the Engineer after timely notice of its readiness for inspection and test Standard Specifications

82 The results of any tests are made for the information of the Engineer. Regardless of any test results, the Contractor is solely responsible for the quality of workmanship and materials and for compliance with requirements to the Drawing and Specifications. Except as specially required under detail material specifications for shop testing and inspection, all tests of materials furnished by the Contractor where tests will be made by the Engineer will be done according to commonly recognized standards of national organizations. The Contractor shall furnish such samples of all materials as required by the Engineer without charge. NO material shall be used unless it has been favorably reviewed by the Engineer. Where such inspection and testing are to be conducted by an independent laboratory or agency, the sample or samples of materials to be tested shall be selected by such laboratory or agency, or the Engineer, and not by the Contractor. b. Costs of Testing 94. SANITATION The Contractor shall be responsible for, and shall pay for, all source quality control and all offsite tests of materials required, except those tests specially noted to be performed and paid for by the District. The Engineer shall have the right to witness all offsite tests and the Contractor shall furnish adequate notice of when tests will be made. When, in the opinion of the Engineer, additional tests or inspections are required because of the manner in which Contractor executes his work, such tests and inspections will be paid for by the District, but will be deducted from the Contract price. Examples of such additional tests and inspections are: test of materials substituted for previously accepted material, or substituted for specified material, or retests made necessary by failure of material or equipment to comply with the requirements of the Specifications. All piping shall be hydrostatically tested for tightness, unless otherwise specified. Where water testing of piping is required, the Contractor shall furnish and dispose of the water required for the testing of piping for tightness. The Contractor shall provide, at his own expense, adequate sanitary/restroom facilities for all persons working on the project at the work site and maintain the same in a clean and sanitary condition Standard Specifications

83 95. DISTRICT HARASSMENT POLICY The District is committed to providing a work environment that is free of discrimination and harassment. In keeping with this policy, the District prohibits discrimination or harassment of any kind, including discrimination on the basis of sex, race, color, religion, creed, age, mental or physical disability, medical condition, national origin, ancestry, marital status, veteran status, citizenship status, military service, sexual orientation or any other characteristic protected under federal law, state law or local ordinance. Harassment and/or discrimination of District employees by the Contractor, its employees, agents and/or subcontractors is prohibited. This Contract specifically incorporates the District s Anti-Harassment and Discrimination Policy. All Contractors, their employees, agents and subcontractors are required to follow the District s Anti-Harassment and Discrimination Policy. Contractors will be provided a copy of the District s policy upon request. Failure to follow the policy shall be cause for termination of the Contract under Article 45 Termination of Contract or discharge of a Contractor s employee under Articles 53 Contractor s Superintendents or Foremen and 54 Contractor s Employees of the Standard Specifications DISPUTE RESOLUTION The following provision shall apply to all claims not subject to Public Contracts Code Sections et seq.: a. Mediation Any dispute or claim in law or equity between District and Contractor arising out of this agreement, if not resolved by informal negotiation between the parties, shall be mediated by referring it to the nearest office of Judicial Arbitration and Mediation Services, Inc. (JAMS) for mediation. Mediation shall consist of an informal, non-binding conference or conferences between the parties and the judge-mediator jointly, then in separate caucuses wherein the judge will seek to guide the parties to a resolution of the case. If the parties cannot agree to a mutually-acceptable member from the JAMS panel of retired judges, a list and resumes of available mediators numbering one more than there are parties will be sent to the parties, each of whom will strike one name leaving the remaining name as the mediator. If more than one name remains, JAMS arbitrations administrator will choose a mediator from the remaining names. The mediation process shall continue until the case is resolved or until such time as the mediator makes a finding that there is no possibility of resolution. b. Arbitration At the sole election of the District, any dispute or claim in law or equity between District and Contractor arising out of this agreement which is not -45- Standard Specifications

84 settled through mediation shall be decided by neutral binding arbitration and not by court action, except as provided by California law for judicial review of arbitration proceedings. The arbitration shall be conducted in accordance with the rules of Judicial Arbitration Mediation Services, Inc. (JAMS). The parties to an arbitration may agree in writing to use different rules and/or arbitrators Standard Specifications

85 ALPHABETICAL INDEX Articles Title Page 43. Acceptance of Work Antitrust Claims Bonds Cancellation of Contract Certified Payroll Submittals and Cost Data Changed Conditions and Hazardous Waste Changes and Extra Work Claims Clean Up Commencement of Work Compliance with Contract Documents Communication Compliance with Environmental Laws Construction Plant, Equipment and Methods Contractor to Serve Notice of Delays Contractor Investigations Contractor to Supply Sufficient Labor, Equipment and Material Contractor s Employees Contractor s Legal Address Contractor s Office at the Work Site Contractor s Superintendents or Foremen Construction Access Cooperation Defective Material and Workmanship Definitions Dispute Resolution District Harassment Policy Drainage Protection Drawings Drawings Required of Contractor Dust Abatement Engineer to Direct the Work Extensions of Time Extra Work Standard Specifications

86 ALPHABETICAL INDEX Articles Title Page 22. Fair Employment Practices Final Estimate and Payment Force Account Work Guarantee Hauling Over City Streets, County Roads and All Highways Illumination of Work Inspection Interpretation of Specifications Laws and Regulations Licensing of Contractors Line and Grade Changes Lines, Grades, Measurements and Surveys Liquidated Damages for Contractor s Delay Maintenance Bond Material to be Obtained from the District Material Equivalence Material Safety Data Sheets (MSDS) Method of Computing Liquidated Damages Night and Weekend Work Notice of Commencement/Cessation of Work Patents Payment for Increased or Decreased Quantities Permits, Licenses and Fees 7 7. Precedence of Contract Documents Progress Payments Progress Schedule and Order of Completion Protection of Existing Facilities, Utility Relocation, Equipment Sizing and Fluid Leakage Protection of Work, Persons and Property Against Damage Protests Public Inconvenience Public Liability and Property Damage Insurance Reasonable Assurances Responsibility for Material Responsibility of Contractor Retention of Sums, Charges Against Contractor Road Accessibility Standard Specifications

87 ALPHABETICAL INDEX Articles Title Page 51. Safety Salvage of Material Samples and Tests of Material and Work Sanitation Satisfaction of District Shoring Plan Smoking Storage of Materials Equipment and Vehicles Subcontracts, Assignments Termination of Contract Terms Tests Traffic Control Travel and Subsistence Pay USA Notification and Utility Field Meeting Unavoidable Delays Use of Improvement During Construction Use of Drugs Wages, Hours, Apprentices Work and Material Quality Work Beyond Completion Date Does Not Waive District s Rights Work Included Work to be Done to the Satisfaction of the District Work to be Done Without Direct Payment Workers Compensation Insurance Working Hours and Overtime Work Standard Specifications

88 PART 1 - GENERAL 1.1 DISTRICT S STANDARD SPECIFICATIONS SECTION SPECIAL PROVISIONS All portions of the Standard Specifications, February 2012 of the Marin Municipal Water District are incorporated herein and made a part hereof by reference. 1.2 WORK TO BE DONE The work to be done includes, but is not limited to, the following: installation of approximately 50 feet of 6 inch welded steel pipe and the renewal of 51 service laterals with fittings and appurtenances. 1.3 LOCATION OF WORK The location of the work in this project is on Bolinas Avenue between Kensington Road and San Anselmo Avenue in the Towns of Ross and San Anselmo all located in Marin County, California. 1.4 CONTRACT COMPLETION DATE All work under this contract shall be completed within 90 calendar days from the date of the award of the Contract. It is anticipated that the District s Board of Directors will award this contract at their meeting on February 19, Therefore, the completion date shall be May 20, The contract completion date has been determined including a 30-day period for the processing of contract documents. The District shall be the sole owner of all float time related to all construction schedules pertaining to this project. 1.5 ORDER OF WORK The Contractor shall perform all work associated with lowering services and install 6- inch welded steel pipe between San Anselmo Avenue and Richmond Road prior to starting any service lowering on the remainder of Bolinas Avenue. This portion of work shall be completed by April 30, As long as the specific requirements listed above are met, the Contractor may work on as many sections of the project as he has forces to diligently pursue. The Contractor shall pursue each section, once started, to its completion. The Contractor shall not begin an additional section unless all previously started sections are either complete or are actively under construction and the contractor has the forces required to start a new section without affecting the progress on previously started sections. Section

89 Prior to the start of any work under this contract, the Contractor shall provide to the District a schedule for intended progress on this project, see Section The schedule shall include a firm starting date for the project, intermittent progress points and an estimated start and completion date for each section. The Contractor shall not start any work until the Contractor has received approval of the submitted schedule by District. 1.6 LIQUIDATED DAMAGES It is necessary that the work indicated in these Specifications be completed not later than the stipulated time. Therefore, as provided in Articles 78 and 82 of the General Specifications, should completion of the work be delayed beyond the completion time as stated herein, or such extension of time that may be allowed by reason of unavoidable delays, there shall be deducted from the total contract price for the work, the sum of Five Hundred Dollars ($500) per day, for each and every calendar day by which completion of the work for the complete contract shall be delayed beyond said specified time, or such extension thereof. 1.7 WORK HOURS The District general work hours are as stated in GC 57. However on this project, field work involving noise, such as equipment engine noise or other of equal noise, may not start until 8 AM. Monday through Friday. 1.8 PROJECT SIGNS The Contractor shall provide 2 electronic changeable message signs at the locations specified by the permit conditions attached in Appendix C of these specifications. Signs shall be installed 14 calendar days prior to the start of construction on Bolinas Avenue. Sign wording shall be as specified by the Engineer. It shall be the Contractor s responsibility to maintain, repair or replace the signs if they should become damaged or destroyed during the time of the Contract. The Engineer shall direct change to the message wording as needed throughout the project. The signs shall only be removed after all work by the Contractor has been completed on Bolinas Avenue. 1.9 PROTECTION OF EXISTING FACILITIES A. GENERAL The Contractor shall protect all pipes, facilities and roads near the work. Any damage to facilities by the Contractor shall be repaired to an equal or better condition than what exists at the time of damage. B. EQUIPMENT SIZING 1. It shall be incumbent on the Contractor to make a thorough investigation of the job site and to size the equipment accordingly. The Contractor shall select equipment to avoid damaging existing facilities, which include, but Section

90 1.10 PARKING RESTRICTIONS are not limited to: street paving, pipes, traffic controls, sidewalks, plant material, landscaping, curbs and gutters, retaining walls, etc. Any damage shall be restored by the Contractor at no cost to the District. 2. Super dumps with a third axle shall not be allowed on this project. The contractor may close parking on both sides of the street through his work area if it is necessary in the preservation of two lanes of traffic. The contractor shall not at any time close, block or otherwise obstruct parking for a length greater than 500 feet in each crew location PERMITS AND FEES The Contractor shall file for, obtain and pay all fees for all necessary permits for the work under the contract. The Contractor shall coordinate all aspects of this work, associated inspections and other work in accordance with the requirements of such permits. The Contractor shall pay all fees associated with the conduct of his business such as business licenses. The Contractor shall obtain and pay for all Encroachment Permits for the project from the Town of Ross and Town of San Anselmo. Contractor is responsible for, and shall pay, all Town of Ross and Town of San Anselmo permit fees regardless of the number of days it takes to complete the project. If the Encroachment Permit requirements are different than indicated in the contract specifications (See Appendix C), the Contractor shall submit, in writing, a request for clarification to the Engineer prior to the start of that project. The Contractor can verify the cost of the Encroachment Permits issued by the Town of Ross and Town of San Anselmo to be No Fee Permits, which are shown in Appendix C but shall pay all fees and expenses related to said permits SCHEDULING OF WORK AND SHUTDOWNS A. General Shutdowns of the water distribution system for connection shall be for periods of less than one work day. The contractor shall set his work force accordingly. All system service shall be restored by the end of that given work day TEMPORARY PAVEMENT Temporary pavement shall be hot mix asphaltic concrete as described in the Encroachment Permit and Section Temporary pavement shall be placed daily over the work accomplished that day. Temporary pavement shall be maintained daily. Section

91 1.14 TRAFFIC CONTROL In addition to Article 61 of the General Specifications, the following shall be in effect for this contract: 1. Road closures shall only be allowed by authorization of the Engineer. The Contractor shall first request and receive closure approval from the encroachment permit engineer, which shall then be submitted to the Engineer for authorization. 2. The Contractor shall submit a copy of his traffic control plan to the Engineer, after approval by the local jurisdiction, and prior to commencement of any work. The Contractor shall not proceed until the approved plan is accepted by the Engineer. 3. The Contractor shall secure closure approval from the Engineer four (4) days prior to closing the road. 4. The Contractor shall notify the U.S. Postal Service, and the appropriate police, fire, garbage collection, transportation and Public Works personnel, of the road closure on a daily basis. Signs (minimum of two) shall be posted at the construction zone limits, 48 hours before each closure stating, ROAD WILL BE CLOSED ON (DAY AND DATE) FROM A.M. TO P.M. On the day the road is closed, a sign shall be placed at each street effected by the road closure stating, ROAD CLOSED AT (ADDRESS). All signs shall be 2 feet by 3 feet in size, with 3-inch black letters on white background, and shall be professionally made. All signs shall be approved by the Engineer prior to manufacture. 5. At all times, the Contractor shall provide safe passage for pedestrians through the work area and access to businesses and residences REDWOOD BLOCKING The Contractor shall provide all redwood blocking necessary on the project for the fabrication of concrete thrust blocks and for setting valves and meter boxes and other applications as required. END OF SECTION Section

92 PART 1 - GENERAL 1.1 BASIS FOR PROGRESS PAYMENT SECTION MEASUREMENT AND PAYMENT Prior to the beginning of work, the Contractor shall submit a Contractor s Cost Breakdown of his bid items that will be used as the basis for determining progress and computing monthly progress payments. Total payment for mobilization and demobilization, if identified in the Breakdown, shall not exceed 5% of the total bid. This breakdown is subject to the approval of the Engineer. 1.2 SCHEDULE OF PAYMENTS Monthly progress payments will be made based on the pro rata value of the actual work completed as of 30 days after the Notice-to-Proceed, and every 30 days thereafter, and otherwise in accordance with MMWD General Specifications, Item 77: Progress Payments. The progress payment will be initiated by the foreman arranging a meeting with the Inspector to review the estimate of total work completed for the current pay period. The Inspector will submit the reviewed estimated quantities to the Engineer for approval. The District will pay the Contractor within 20 days of after completion of the field review by the Inspector and the foreman. In the case of disagreements between the contractor and the District as to the amount of progress payment monies due, the Engineer s estimate shall be final. Final payment will be made upon completion of work in accordance with MMWD General Specifications, Item 79: Final Estimate and Payment. 1.3 SCOPE OF PAYMENT A. The work has been broken down into several unit price and lump sum items for convenience in measuring progress for payment. B. It is recognized that due to the interconnected nature of construction, specific separation of work into bid items is not always possible; generally only the major involved items are specified herein. However, all of the work under the contract for a complete project is included in these items, and no claims for extra work will be allowed for any item shown on the plans or required by the Specifications. C. The Contractor shall accept the compensation provided in the Contract as full payment for furnishing all labor, materials not furnished by the District, tools, equipment, and incidentals necessary for performing all work contemplated and embraced under the Contract; also for loss or damage arising from the nature of the work, or from the action of the elements, or from any unforeseen difficulties which may be encountered during the prosecution of the work, until the work is accepted by the District; and for all risks of every description connected with the prosecution of the work, also for all expense incurred in consequence of the Section

93 suspension or discontinuance of the work as herein specified; and for completing the work according to the Contract Documents. Neither the payment of any estimate nor of any retained percentage shall relieve the Contractor of any obligation to make good any defective work or material. D. No compensation will be made in any case for loss of anticipated profits. E. Except as specifically provided otherwise, no separate payment will be made for any of the requirements of the General Specifications, the Special Provisions, nor for any of the work specified in Division 1 Sections of the Specifications, and the cost thereof will be considered as included in the prices paid for the various contract items included in the Bid. 1.4 LUMP SUM PRICES Work under Contract lump sum prices listed in the Bid Sheet Schedule will be paid based on prorata completion of that work and as specified under Section 1.1 Basis for Progress Payment. 1.5 UNIT PRICES For items bid on a unit price basis, the estimated quantities given in the Bid Form are approximate and are given only as a basis for comparison of bids. The District does not expressly, nor by implication, warrant that the actual amount of work will correspond to the estimated quantities. The District reserves the right to increase or decrease the amount of work performed under unit price Bid Items, or to omit such work altogether unless such change exceeds 25 percent of the total contract bid price. No adjustments to the Contract unit prices will be made, nor will any claim for loss of anticipated profit be allowed on account of any such increase, decrease, or omission. Payment for unit price Bid Items will be made at the Contract unit prices stated in the Contractor s Bid, for the quantities of work directed by the Engineer to be performed and actually performed, measured as specified below. 1.6 PARTIAL PAYMENTS The partial payments for all distribution piping work shall estimate on the basis of the following schedule of completion percentages: Section

94 BID ITEM Section WORK COMPLETED A. Mobilization, Each Site Site work started Site work finished B. Pipes, Valves, Fittings, Blow offs, Hydrants, Service Pipe, CDF, Class 2 Aggregate and Sand Backfill, Native Backfill, Over-excavation C. Make Connections to Existing Pipe, Pavement Cutting, Pavement Removal, Trench Excavation, Permanent Pavement, Concrete, Shoring, Turf, Excavation of Rock D. Taps & Connections for Services In the Ground Passed Pipeline Testing, Flushing and Disinfection Complete PARTIAL PAYMENT 75% 100% 75% 90% 100% Complete 100% Tap Only Complete E. Temporary Pavement Placed Removed 1.7 CHANGE ORDERS 50% 100% 50% 100% Whenever corrections, alterations, or modifications in the work under this Contract change the amount of compensation due the Contractor, such changes must first be approved by an executed change order stating the agreed upon price. Upon failing to reach an agreement on price and/or the execution of a change order, the Contractor shall perform all such extra work when ordered in writing by the Engineer and will be compensated in accordance with Article 42 of the General Specifications. 1.8 SCHEDULE OF BID ITEMS Bid Item No. 1 - Site Mobilization and Demobilization Payment of the contract price shall constitute full compensation for providing all labor, equipment and those materials not furnished by the District required to mobilize all Contractor operations, including both administrative and field operations. Mobilization shall include but is not limited to completion of all submittals (including but not limited to construction schedule, material certification, insurance, and bonding), applying for and obtaining all required encroachment permit(s), providing, placing and maintaining changeable message signs per the permit conditions, attending pre-construction meeting(s), transporting equipment, initial site reconnaissance, and provision of sanitary

95 facilities. In addition, payment for fulfilling Special Provisions that are not covered under any of the following separate Bid Items shall be included in this item, and no additional payment shall be made. Payment for this item shall be made on an individual basis for each separate work site. This contract contains the number of sites stated on the Bid Sheet. Total payment for this item shall not exceed 5% of the total bid. Bid Item No. 2 - Install Welded Steel Pipe Payment of the contract price shall constitute full compensation for furnishing all labor, equipment and those materials not furnished by the District required for transportation of materials, traffic control, trench dewatering, installation of Corrosion Test Stations (CTS), and installation of pipe complete, in place, all as shown on the Drawings, as required by the Specifications or as directed by the Engineer. Payment for PVC insulator pipe shall be included in this item. The payment quantity for this item shall be the straight-line distance of the new mainline piping, on finish grade, as measured from one point of connection to the other point of connection on the existing mainlines with no breaks at valve assemblies or fittings. Hydrant piping runs and fireline piping shall be paid under this item. The payment quantity shall be from the measured distance from the centerline of the mainline pipe to the centerline of the hydrant bury or fireline point of connection. In addition to payments made for pipe installation, payment for the installation of valves, fittings, connections to existing pipe, pavement cutting, pavement removal, and excavation shall be made under separate bid items provided in these specifications. Bid Item No. 3 - Bid Item No. 4 - Install Pipe Fittings - Welded and Install Pipe Fittings Non-Welded Payment of the contract price shall constitute full compensation for furnishing all labor, equipment and those materials not furnished by the District required to install pipe fittings for installation, complete in place, all as shown on the Drawings, required by the Specifications or as directed by the Engineer. The payment quantity for this item shall be the number of pipe fittings actually installed as required by the Drawings or as directed by the Engineer. All work necessary to install pipe fittings complete shall be included in the contract price. A completed fitting includes the required companion flanges, glands or couplings, to make the connection to the pipeline or the trimming of weld elbows to change the pipeline grade, slope or horizontal direction required to accomplish the pipe layout. Payment for concrete or redwood blocking of fittings shall be included in the bid price for each fitting under this bid item. Section

96 Fittings shall be paid for under the Welded Pipe Fittings bid item if any one of the connections to the pipeline is to be made by welding. Bid Item No. 5 - Make Connections to Existing Pipelines Payment of the contract price shall constitute full compensation for furnishing all labor, equipment and those materials not furnished by the District, required: to test, flush, assist in chlorination and make connections of new to old piping; make associated temporary cut and plugs on the existing pipelines; and make permanent abandonment of the existing piping, all as shown on the Drawings, required by the Specifications or as directed by the Engineer. A connection is defined as the work associated with restoring complete pipeline continuity at a cut in the existing piping. Offset connections shall be considered one connection complete in place. The payment quantity for this item shall be for the number of connections actually made, as required by the Drawings or as directed by the Engineer. All work necessary under this bid item shall be included in the bid price for each connection as indicated by the Engineer. In addition, all labor and material to install temporary fittings and thrust restraint for interim use of both the new and old mains before final connections shall be included under the bid price for each connection. In addition, all costs associated with installing connection piping and fittings 2-inches in diameter and smaller shall be included under this bid item. In addition to payment made for main line piping connections, additional payment for the installation of main line components (pipe, valves and fittings) will be made under bid items provided therefore, unless otherwise shown on the Drawings. All material and work necessary for the installation of temporary blowoff assemblies for flushing, complete, shall be included in the bid price for each connection. No other payment shall be made for this work. Bid Item No. 6 - Install Tap and Connections for Service Lateral Payment of the contract price shall constitute full compensation for furnishing all labor, equipment and those materials not furnished by the District required to install and make service taps from new connection to main, set the meter box, killing the existing service tap at the main by removing corp cock and plugging with brass plug on welded steel pipe and removing service saddle and installing a full circle clamp on cast iron pipe, electrically insulate the existing meter if required, install anode at the meter if required and make connections to mainline piping and existing service piping complete, all as shown on the Drawings, required by the Specifications or as directed by the Engineer. The payment quantity for this item shall be for the number of tap and connections actually installed as required by the Drawings or as directed by the Engineer. All work necessary under this bid item shall be included in the bid price for each tap and connection. The tap and connections shall be considered together as one unit in Section

97 measuring for payment. Service piping installation will be paid for under a separate bid item. Bid Item No. 7 - Install Copper Service Pipe Payment of the contract price shall constitute full compensation for furnishing all labor, equipment and those materials not furnished by the District required to install service pipe with fittings, as well as pavement cutting, pavement removal, excavation, trench dewatering, backfill, temporary paving, grinding and permanent paving associated with service piping or trenchless installation of service piping, as required by the Drawings, the Trench Restoration Detail, the Specifications or as directed by the Engineer. The payment quantity for this item shall be the straight-line distance, on finish grade, as measured from the centerline of the new mainline to the point of connection to the existing service. No other payment shall be made for work involved in the installation of copper service pipe. Bid Item No. 8 - Pavement Cutting Payment of the contract price shall constitute full compensation for the furnishing of all labor, materials and equipment necessary to cut existing asphalt, concrete, or any other type of pavement surfaces complete for use as shown on the Drawings, required by the Specifications or as directed by the Engineer. The number of lineal feet to be paid under this item shall be calculated as a measurement of the actual length of pipe installed multiplied by the number of cuts required by the Drawings and Specifications and completed. No additional payment shall be made for cuts at bell holes for joints, valves or fittings or for additional cuts required in areas damaged by the Contractor s operations. No payment shall be made for pavement cuts required for service pipe installation. Where a second cut is specified, the first cuts may be by grinding and will be paid as a pavement cut. No payment shall be made under this item for second cut work that is done by grinding. Payment for service pavement cutting shall be made only under the Install Copper Service Pipe bid item. Bid Item No. 9 - Pavement Removal Payment of the contract price shall constitute full compensation for the furnishing of all labor, materials and equipment necessary to score, remove and dispose existing asphalt, concrete, or any other type of pavement, including abandoned surface facilities, as shown on the Drawings, required by the Specifications or as directed by the Engineer. The number of square feet to be paid for under this item shall be calculated as a measurement of pavement removal width as shown in the trench section on the Drawings using nominal pipe diameter and the length as determined in the pipeline bid items. No additional payment shall be made for pavement removal at bell holes for joints, valves or fittings or for additional saw cuts required in areas damaged by the Contractor s operations. No additional payment shall be made for pavement removal by Section

98 grinding for overlay. Payment for service line pavement removal shall be made only under the Install Copper Service Pipe bid item. Bid Item No Trench Excavation Payment of the contract price shall constitute full compensation for the furnishing of all labor, materials and equipment necessary to excavate and dispose of material from the trench excavation as well as abandoned facilities, de-watering, containment and disposal, complete and ready for installation of pipe as shown on the Drawings, required by the Specifications or as directed by the Engineer. The number of cubic yards to be paid for under this item shall be calculated by the average end area method. The depth shall be the measurement from the bottom of pavement removed down to the limits of excavation as shown on the Drawings using nominal pipe diameter. The width shall be the neat line trench dimensions as shown on the Drawings or required by the Specifications. No allowance shall be made for extra width or depth at bell holes, valves or fittings. The length shall be the measured piping footage as determined in the pipeline bid items. Payment for service line trench excavation shall be made only under the Install Copper Service Pipe bid item. For the purposes of this bid item, conventional excavation shall include any excavation using powered equipment in vehicular traffic areas. Limited equipment excavation shall include any excavation in vehicular traffic areas using powered equipment limited in size as indicated on the Drawings or in Section Special Provisions of these specifications. Restricted equipment excavation shall include excavation outside vehicular traffic areas where the Drawings, Specifications or terrain prohibit the use of motorized equipment. Payment for hand excavation shall be included under this item. No extra payment will be made for hand excavation or any other efforts associated with crossing existing utilities, equipment usage restrictions or tree root preservation requirements. Bid Item No Furnish and Place Imported Backfill - Select Sand Payment of the contract price shall constitute full compensation for the furnishing of all labor, materials and equipment necessary to furnish and place sand and complete as shown on the Drawings, required by the Specifications or as directed by the Engineer. The number of cubic yards to be paid for under this item shall calculated by the average end area method less the volume occupied by the pipeline and other installed structures therein. The width and depth shall be the neat line trench dimensions as shown on the Drawings, using nominal pipe diameter, with no allowance for extra width or depth at bell holes, valves or fittings. The length shall be the measured piping footage as determined in the pipeline bid items. Payment for service line trench backfill shall be made only under the Install Copper Service Pipe bid item. Section

99 All work necessary for the installation of trench dams of impervious import material shall be included in the bid price for Sand. The trench dam material shall be paid as an equal quantity of sand. No other calculation or payment shall be made for this work. Bid Item No Furnish and Place Class 2 Aggregate Base Backfill Payment of the contract price shall constitute full compensation for the furnishing of all labor, materials and equipment necessary to furnish and place Class 2 Aggregate Base and Recycled Class 2 Aggregate Base, compacted and complete and ready for surfacing as shown on the Drawings, required by the Specifications or as directed by the Engineer. No separate payment will be made for temporary or unsatisfactory material that is removed before final paving. The number of cubic yards to be paid for under this item shall be calculated by the average end area method less the volume occupied by structures therein. The depth shall be measured from the top of the clean sand backfill up to the bottom of the permanent pavement section, as shown on the Drawings or measured during construction, with no extra depth for temporary fill removed prior to installation of permanent pavement. The width shall be the neat line trench width as shown on the Drawings, using nominal pipe diameter, with no allowance for extra width at bell holes, valves or fittings. The length shall be the measured piping footage as determined in the pipeline bid items. Payment for service line trench backfill shall be made only under the Install Copper Service Pipe bid item. All material and work necessary to furnish and place Control Density Fill shall be included in the contract bid price for Class 2 Aggregate Base. Control Density Fill material shall be paid as equal quantity of Class 2 Aggregate Base and no other calculation or payment measurement shall be made for this work. All work necessary for the installation of trench dams of impervious import material shall be included in the bid price for Class 2 Aggregate Base. The trench dam material shall be paid as an equal quantity of Class 2 Aggregate Base. No other calculation or payment shall be made for this work. Bid Item No Furnish and Place Permanent Pavement Payment of the contract price shall constitute full compensation for the furnishing of all labor, materials and equipment necessary to remove and dispose temporary pavement and excess backfill materials, prepare the surface for permanent pavement, and furnish and place new permanent pavement surfaces complete for use as shown on the Drawings, required by the Specifications or as directed by the Engineer. This contract price shall also include but is not limited to the cost of furnishing and placing pothole restorations, sand seal and crack seal materials, expansion joints, street markings, and traffic control loops, as required by the Drawings, Specifications, or Encroachment Permits. The number of square feet to be paid for under this item shall be calculated by the measurement of the neat line width of the paving section as shown on the Drawings Section

100 using nominal pipe diameter. The length shall be the actual length of measured piping as determined in the pipeline bid items. No additional payment shall be made for the paving of pothole restorations, bell holes at joints, valves or fittings or of areas damaged by the construction project. Payment for service line permanent pavement shall be made only under the Install Copper Service Pipe bid item. In the event that the Engineer requires an asphalt thickness other than that shown on the Drawings or listed in the Specifications, the pavement quantity measured shall be increased or decrease by the ratio of the actual thickness to the thickness originally required on the Drawings or Specifications. Bid Item No Remove and Replace Miscellaneous Concrete Payment of the contract price shall constitute full compensation for furnishing labor, equipment and materials required to remove and replace sidewalks, gutters and curbs, valley gutters, drainage swales all as shown on the Drawings, required by the Specifications or as directed by the Engineer. The quantity of square footage of sidewalk and lineal footage of curbs to be paid under this item shall be the actual quantity of concrete placed determined by the Engineer s measurements. No additional payment will be made for required saw cuts of existing concrete. Costs of saw cutting, forming and all other related costs shall be included in the contract bid prices. In the event the Engineer orders the placement of concrete, other than four inches in thickness, the payment quantity measured shall be increased or decreased in the ratio of the actual thickness ordered to four inches. No payment shall be made under this item for replacement of concrete for service pipe installation and meter connections unless ordered by the Engineer prior to the service work. No payment shall be made for repair or replacement concrete areas damaged by the contractor. The Engineer decision, regarding the need to remove or repair existing, shall be final. Bid Item No Sheeting and Shoring Payment of the contract price shall constitute full compensation for designing and providing all sheeting and shoring as required by Section 6707 of the Labor Code for the construction of all the preceding bid items, complete in place. Payment will be made for sheeting and shoring based on the actual linear footage of trench sheeted or shored on the project. Bid Item No Excavation and Disposal of Rock Payment of the contact price shall constitute full compensation for supplying all labor, equipment and materials required to excavate rock, as required by the Specifications, or as directed by the Engineer. Rock is defined in Technical Specifications Section Section

101 The quantity to be paid under this item shall be the cubic yards of rock disposed of as calculated by the Engineer using the average end area method. The depth shall be measured from the top of the rock cross section measured before rock excavation to either the bottom of rock excavation or three inches below the bottom of the pipe to be installed whichever is less. The width shall be the neat line trench width, as shown on the Drawings, using nominal pipe diameter, with no allowance for extra width at bell holes, valves or fittings. The length to be paid for shall be the length of rock in the trench measured before rock excavation. All work necessary to excavate and remove rock shall be included in the bid price. Payment for this bid item shall be made in addition to payment for the bid item for trench excavation for areas where rock meeting the definition in these specifications occurs. END OF SECTION Section

102 PART 1 - GENERAL 1.1 CONSTRUCTION SCHEDULE SECTION CONSTRUCTION SUBMITTALS The Contractor shall give a one-week notice in writing prior to the start of field work. Prior to the start of field work, the Contractor shall submit for approval a construction schedule to the Engineer, in accordance with General Specification, Article 16, indicating the time and duration of any required equipment, plant, or system shutdowns. The schedule shall also show the critical path and estimated monthly progress payments. This schedule shall be updated as work progresses. The District shall be the sole owner of all float time related to all construction schedules pertaining to this project. 1.2 CONTRACTOR S COST BREAKDOWN Prior to the first progress payment, the Contractor shall submit for favorable review by the Engineer a detailed cost breakdown of the work under each bid item awarded. The breakdown will then become the basis for partial payment determination. Elements of work shall be grouped and itemized by readily measurable quantities of work complete in place. Mobilization, move-in, bond and insurance costs, and overhead shall be prorated over items of work. In the event the cost breakdown is not favorably reviewed by the Engineer, additional cost breakdown shall be submitted by the Contractor until mutually acceptable to the Contractor and Engineer. 1.3 CERTIFIED PAYROLL SUBMITTALS The Contractor and all subcontractors shall submit certified payrolls in accordance with the MMWD General Specifications, Article 24, Certified Payroll Submittals and Cost Data, on a weekly basis. These forms shall be submitted to the Engineer or his designated representative. 1.4 EMERGENCY CONTACT The Contractor shall provide the District with a list of names and phone numbers of Contractor s representatives for 24-hour contact in case of emergency at the job site. 1.5 COMPETENT PERSON The Contractor shall provide a list of Competent Persons as required in Article 51.c. of the General Specifications. Section

103 1.6 SHOP DRAWING SUBMITTALS A. GENERAL 1. Wherever called for in the Contract Documents, or where required by the Engineer, the Contractor shall furnish to the Engineer submittals for all equipment and components shown on the drawings. THE CONTRACTOR IS ENCOURAGED TO TRANSMIT ALL SUBMITTALS IN ELECTRONIC FORM. The district will accept submittals using the versions of AutoCAD, dfx, pdf or tif formats current at the District. Other formats may be accepted but if unacceptable to the district, paper copies shall be required. Electronically transmitted submittals shall be returned electronically or by paper at the contractor s choice. IF THE CONTRACTOR ELECTS TO SUBMIT PAPER, the number of paper copies of submittals shall be the number required by the Contractor (not to exceed three copies) plus ONE copy that will be retained by the District. No items requiring submittals shall be installed prior to review and approval by the District. 2. Submittals shall include drawings and descriptive information in sufficient detail for function, installation, and correlation with other work. As appropriate, the data shall include, kind, size, arrangement, performance characteristics, and operating instructions; external connections, anchorages, and supports required; design calculations, shop drawings, fabrication and installation drawings, erection drawings; catalog sheets, data sheets, and similar items. 3. All submittals shall be approved by the Contractor and include the name and number of this Contract. Each submittal shall be clearly identified and indicate the intended use of the item. Submittals that are functionally related shall be grouped together. Multiple-page submittals shall be collated into sets suitable for insertion into a three-ring binder. The submittal shall indicate any deviations from the plans and specifications or changes proposed by the Contractor (including modifications to other facilities that may be a result of the deviation). 4. Electrical, instrumentation, and control systems circuit diagrams, wiring diagrams, shop drawings, etc., shall be prepared in a.dwg file format compatible with AutoCAD version 2010 or higher. Compatible drawings shall utilize standard AutoCAD fonts, shapes and linetypes; Drawings shall not require third-party files to render properly. Drawings shall be prepared to be "readable" at an 11 x 17 inch size. Title blocks shall be drawn in Paper Space and utilize viewports when needed. Prior to project completion, the Section

104 electronic files with "as-built" conditions incorporated shall be submitted to the District as part of the Record Drawings. The District currently uses AutoCAD All drawings shall be created as a transmittal package & shipped using the etransmit command (zip or exe), with the Transmittal Setup configured as follows: 1. Zip format. 2. Place all in one folder. 3. Include fonts. 4. Bind external references. 5. The Contractor shall take full responsibility for the completeness of the submittals. B. SHOP DRAWING SUBMITTAL REVIEW 1. Unless otherwise noted herein, the Engineer will return submittals within 30 days. The District reserves the rights to withhold monies due the Contractor to cover the additional costs of the Engineer s review beyond the second submittal. 2. After review by the Engineer of each of the Contractor s submittals, the submittal will be returned to the Contractor with actions defined as followed: a. If copies of the submittal are returned to the Contractor marked No Exceptions Taken, formal revision and resubmission of said submittal will not be required. b. If copies of the submittal are returned to the Contractor marked Make Corrections Noted, the Contractor is responsible that the noted corrections are made, however formal revision and resubmission of said submittal will not be required. c. If copies of the submittal are returned to the Contractor marked Amend and Resubmit, the submittals have been returned because of inconsistencies or errors that shall be resolved or corrected by the Contractor prior to subsequent review by the Engineer. The Contractor shall revise said submittal and shall resubmit the required number of copies to the Engineer. d. If copies of the submittal are returned to the Contractor marked Rejected-Resubmit, the submitted material does not conform to the Plans and Specifications in major respects (wrong size, model, capacity or material). The Contractor shall correct said submittal and shall resubmit the required number of copies to the Engineer. 3. Corrections indicated on submittals shall be considered as changes necessary to meet the requirements of the Contract Documents and shall not be taken as the basis for extra work. Section

105 4. The Engineer s review of Contractor submittals shall not relieve the Contractor of the entire responsibility for the correctness of details and dimensions. C. PROPOSED SUBSTITUTE OR OR-EQUALS ITEM SUBMITTALS Products that are specified by manufacturer, trade name, or catalog number establish a standard of quality and do not prohibit the use, except where noted, of equal products of other manufacturers provided that they are favorably reviewed by the Engineer prior to installation. The burden of providing proof as to the type, function, and quality of any such substitute material or equipment is the sole responsibility of the Contractor. The Engineer s decision as to the acceptability of the material shall be final. The Contractor may be required to furnish, at the Contractor s expense, a special performance guarantee or other surety with respect to any substitute. Acceptance by the Engineer of a substitute item shall not relieve the Contractor of the responsibility for full compliance with the Contract Documents and for adequacy of the substitute item. The Contractor shall be responsible for the resultant changes or all additional work that the accepted substitution requires in the Contractor s work including all costs and delays. END OF SECTION Section

106 SECTION CONTRACT MATERIALS PART 1 - GENERAL 1.1 GENERAL The District will furnish the materials as listed on the schedule below. The Contractor shall furnish all materials not listed below. Exceptions shall be shown on the Plans. The quality of products provided by the Contractor shall meet the below requirements. 1.2 STANDARD OF QUALITY All equipment and material shall be new, of the most recent model, and free from defects. Previously owned, previously installed, like new, unused, surplus, rebuilt, repossessed, or reconditioned material or equipment is not acceptable. All equipment shall be the product of reputable suppliers having adequate experience in the manufacture of these particular items. 1.3 MATERIAL AVAILABILITY All District furnished materials are stored at either the District s warehouse, located at 220 Tamal Vista Boulevard in Corte Madera, or the District s pipe yard, located on Pelican Way in San Rafael or in the case of hydrants, at the local fire jurisdiction. The only hydrants issued from the District s warehouse are new hydrants on Fire Flow Master Plan projects, unless otherwise noted on the Plans. See Standard Specification Paragraph 69 for Materials to be obtained from the District. The pipe yard is only open on Monday, Wednesday and Friday from 8 am to 11 am. 1.4 CONSTRUCTION AND WORKMANSHIP It is the intent of these specifications to establish quality standards and to require firstclass workmanship in order to facilitate trouble-free operation and minimum maintenance of the project. The final completed installation shall display high quality work, employing industrial standards and methods. PART 2 - PRODUCTS 2.1 PRODUCT SCHEDULE The District will furnish all products described in the following specification sections: Section Cathodic Protection (for tank and welded steel piping) Section Distribution system Piping Section Field Applied Tape Coating System (for piping) END OF SECTION Section

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108 SECTION CONTRACT CLOSEOUT PART 1 - GENERAL 1.1 FINAL CLEANUP Prior to Final Payment, the Contractor shall complete the final cleanup of the work site. Final payment may be withheld until the Contractor has satisfactorily completed the final cleanup 1.2 SUBMITTALS The Contractor shall provide all the submittals as specified in Section Final Payment will be withheld until the required submittals are provided. 1.3 NOTICE OF COMPLETION The District will file a Notice of Completion after the Contractor has submitted a Maintenance Bond as described on Pages IIa and XIII of the Legal Section and Article 27 of the General Specifications of the Contract Documents. END OF SECTION Section

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110 PART 1 - GENERAL 1.1 DESCRIPTION SECTION EARTHWORK This section includes specifications for furnishing, placing and performing earthwork for excavations, shoring, dewatering, backfilling, compaction and grading, at the required lines and grades, as shown on the drawings. The excavation shall include, without classification, the removal and disposal of all materials of whatever nature encountered, except hazardous waste. Water and all other obstructions, that would interfere with the proper construction and completion of the required work shall be removed and disposed of in accordance with the requirements of Section ENVIRONMENTAL PROTECTION. 1.2 RELATED SECTIONS A. Section DISTRIBUTION PIPING SYSTEM B. Section CONTROL DENSITY FILL 1.3 REFERENCES A. ASTM D Moisture-Density Relations of Soils and Soil-Aggregate Mixtures Using 10 lb rammer and 18 inch drop. B. ASTM D Laboratory Determination of Water (Moisture) Content of Soil, Rock, and Soil-Aggregate Mixtures C. ASTM D2419 Sand Equivalent Value of Soils and Fine Aggregates D. ASTM D Classification of Soils for Engineering Purposes E. ASTM D Resistance R Value and Expansion Pressure of Compacted Soils F. ASTM D Density of Soil and Soil-Aggregate in place by Nuclear Methods (Shallow Depth) G. ASTM D Moisture Content of Soil and Soil-Aggregate in Place by Nuclear Methods (Shallow Depth) 1.4 SUBMITTALS A. Sheeting and Shoring Plan: Refer to General Specifications, Article 11. B. Samples and Test Results: Furnish, without additional cost to the District, such quantities of import materials as may be required by the Engineer for test Section

111 1.5 DUST CONTROL purposes. The Contractor shall cooperate with the Engineer and furnish necessary facilities for sampling and testing of all materials and workmanship. Submit test results for import materials. All material furnished and all work performed shall be subject to rigid inspection, and no material shall be delivered to the site until it has been favorably reviewed by the Engineer, or used in the construction work until it has been inspected in the field by the Engineer. Refer to Section 18000, Paragraph 3.2B. 1.6 SITE ACCESS Access to the site will be over public and private roads. The Contractor shall exercise care in the use of such roads and shall repair at his own expense any damage thereto caused by his operations. Such repair shall be to the satisfaction of the owner or agency having jurisdiction over the road. The Contractor shall take whatever means are necessary to prevent tracking of mud onto existing roads. 1.7 SOILS TESTING Listed below are the standard test methods to be employed by the District or by the Contractor s soils testing firm. The intent of these tests is to insure the quality of backfill material and the workmanship, methods and final product of the Contractor. A. In determining the in-place Density of Soil and Soil-Aggregate by nuclear methods, testing shall conform to ASTM D2922 or California Test Method No B. In determining laboratory moisture-density relationships of soils, testing shall conform to by ASTM D1557 or California test method No C. In determining the in-place moisture content of soils, testing shall follow ASTM D3017, ASTM D2216, California Test Method No D. In determining the Sand Equivalent, ASTM D2419 or California Test method No. 217 shall be used. E. In determining the resistance value, testing shall conform to ASTM D2844 or California Test Method No F. Classification of soils for Engineering Purposes shall be in accordance with ASTM D2487. Section

112 PART 2 - MATERIALS 2.1 EARTHWORK BACKFILL The types of backfill material indicated below may be used for backfilling trenches as indicated in the specifications, shown on the Drawings or directed by the Engineer. A. CLASS 2 AGGREGATE BASE This material shall conform to the requirements set forth in Section 26 of the most recent CALTRANS Standard Specifications for the ¾ maximum size aggregate. Aggregate grading and quality requirements shall conform to the moving average criteria unless otherwise specified by the Engineer, and shall apply to material both before and after compaction. Aggregate may include material processed from reclaimed asphalt concrete, portland cement concrete, lean concrete base, cement treated base or a combination of any of these materials. The amount of reclaimed material may account for up to 100% of the total volume of the aggregate used. Reclaimed material shall conform to the grading and quality requirements set forth in Section 26 of the most recent CALTRANS Standard Specifications for the ¾ maximum size aggregate. The Contractor shall be required to demonstrate that the recycled Class 2 aggregate base material meets CALTRANS standards. See the following link to the CALTRANS web site: B. SELECT SAND This material shall be a clean material free of organic or other deleterious substances and of such gradation that a minimum of 90% will pass a No. 4 sieve and not more than 5% will pass a No. 200 sieve. If low chloride sand is required, the chloride content shall not exceed 30 parts per million by weight. C. PEA GRAVEL This material shall be a clean material free of organic or other deleterious substances and shall consist of smooth rock with no facets or sharp edges. Stones shall have a maximum size of 3/8 inch, and not more than 5% will pass a No. 16 sieve. D. CONTROL DENSITY FILL If CDF is used, see Section Control Density Fill. Section

113 E. NATIVE BACKFILL Where use of native soil is directed, prepare native soil as necessary to be free from clods or rocks larger than 3 inches in greatest dimension, and free from organic material and as approved by the Engineer. F. DRAIN ROCK OR GRAVEL If drain rock or gravel is required, river run or crushed rock with a maximum dimension of ¾ inch, with no more than 10 percent passing the No. 200 sieve, and with a durability index of 40 or higher shall be used. 2.2 UNACCEPTABLE MATERIAL Unless otherwise specified, backfill material shall not contain quarry waste, quarry fines, pea gravel, recycled materials and like material. In addition, any material not conforming to the specifications of Section 2.1 or failing performance testing shall also be unacceptable. 2.3 TRENCHLESS TOOLS The following is a list of manufacturers that supply equipment relevant to the trenchless techniques described elsewhere in this section. 1. Ditch Witch by Charles Machine Works, Inc. (Perry OK) Pow-R Mole by Petersen Underground Equipment, Inc. (Murray UT) Hole-Hog or Red Hog Express by Allied Construction Products (Cleveland, OH), Ferret by Footage Tools (Weston, Ontario Canada), GRUNDOMAT and GRUNDORAM by TT Technologies, available from Plank, (Petaluma CA), LTA Corporation (Columbia Heights, MN) Hacker Industries (Henderson TX) ACCU-PUNCH by Vibra King, Inc. (Mankato, MN), Mighty Mole by McLaughlin Boring Systems (Greenville, SC) Grice Industries, Section

114 PART 3 - EXECUTION 3.1 USA NOTIFICATION AND UTILITY FIELD MEETING The Contractor shall contact Underground Service Alert (USA) ( ) seven (7) calendar days prior to start of each section and shall be responsible for maintaining a valid USA location tag through renewal during the construction. The Contractor shall schedule a utility field meeting prior to any excavation. This shall be so stated in the USA Notification. The Contractor shall be responsible to coordinate the utility field meeting at which time he shall explain the limits and impacts to USA member utilities. See CA Government Code EXISTING UTILITIES The Contractor shall expose all existing utilities along the trench alignment and at connections prior to commencement of the work on the project for the pipeline installation. This is to be done in order to determine the line and grade of existing utilities, possible conflicts and mismarks. At connections, the Contractor shall expose the existing pipeline to determine the depth at which the connection is to be made and verify existing pipe material and sizes. If the contractor damages any existing utilities, the contractor shall immediately notify that utility and make repairs satisfactory to that utility. 3.3 PROTECTION OF EXISTING SURVEY MONUMENTS The Contractor shall not disturb, remove, alter or destroy any existing land survey monument. In the event that the contractor believes that a monument will be thus impacted, the Contractor shall notify the Engineer. The Contractor shall allow 10 working days for the Engineer to establish sufficient data to reset the monument after the completion of the construction. 3.4 SITE GRADING A. Rough Grading: After completion of stripping, the Contractor shall rough grade cut areas to the lines, grades and contours shown on the Drawings. B. Proof-Rolling: After rough grading, the Contractor shall proof-roll the areas where on-grade structures are to be constructed in order to detect soft zones. Proof-roll shall consist of passing over all required areas with a loaded scraper, front-end loader with loaded bucket, or other heavy rubber tired vehicle with high tire pressure, in the presence of the Engineer. The Engineer will determine which areas tested by proof-rolling are soft zones that require the Contractor to complete following corrective work. Section

115 1. Soft Zone Corrective Work: Remove all soft material as indicated by the Engineer from all soft zones exposed by proof-rolling. Properly dispose of unsuitable material off site. 2. Fill the resulting voids with moisture-conditioned Native Backfill, in level 8- inch uniform layers measured before compaction. Compact with appropriate equipment to at least 95 percent relative compaction. 3. Soft zone corrective work will be considered a change in the scope of project work and will be paid for in accordance with Article 47 Changed Conditions of the General Conditions. C. Scarifying: The Contractor shall scarify, to a minimum 6-inch depth, all areas where fills are required. Moisture condition the scarified surface to within two percent of optimum water content, and compact to minimum 95 percent relative compaction. D. Fills: 1. Do not place any fill until the Engineer has inspected, tested to his satisfaction, and favorably reviewed the prepared subgrade. 2. Construct fills as shown on the Drawings, true to line, grade and crosssection. Construct fills of Native Backfill unless otherwise indicated. Place material in approximately 8-inch thick horizontal layers measured before compaction, and carried across the entire width to the required slopes. Compact all fills to a relative compaction of at least 90% unless otherwise specified. Properly moisture condition before compaction. 3. The Contractor may be required to overbuild slopes and trim back to the compacted core to achieve adequate compaction of slope faces. E. Compaction requirements shall be 90% relative compaction. Material shall be moistened as required to aid compaction. F. Ditches: Cut ditches accurately to the cross sections and grades shown. Take care not to overexcavate ditches, and backfill excessive excavation to grade. Trim all roots, stumps, rock and other foreign matter from the sides and bottom of the ditches. Compact the surfaces of ditch slopes and bottom. 3.5 PAVEMENT REMOVAL A. GENERAL Excavation for the pipe installation shall be open cut and shall include the removal of all paving, concrete, soils, abandoned utilities, water, or other objects of any nature that would interfere with the performance of the work. Section

116 B. SAWCUTTING In locations where the pipe is to be installed by open cut method under asphaltic concrete or concrete pavement sections, the outline of all pavement areas to be removed shall be cut prior to removal as required by the local jurisdiction in which the work is being performed. Any cutting that requires water shall be done with a vacuum system that collects all the water and does not allow any water or cutting products to flow into the storm drain. Cuts shall be neat and true, shall be cut completely through the existing pavement section to subgrade and shall be done without damaging adjacent pavement that is not to be removed. No jackhammer, drop hammer, or similar equipment will be allowed to cut the pavement. Grinding that results in cuts wider than 0.5 inch shall not be considered as sawcuts. The Contractor shall anticipate that variations in the thickness of paving exist. C. DISPOSAL Pavement removed from the pipeline trench shall be hauled from the job and disposed at a County approved disposal site. 3.6 TRENCH EXCAVATION A. GENERAL Trench excavation for pipelines shall be open cut, except that service piping may be installed using either open cut or trenchless methods defined later in this section. The trench shall be excavated to the lines and grades shown on the drawings and in accordance with trench details. If the trench is excavated below the required grade, the Contractor shall refill the trench excavated below the grade with compacted Class II Aggregate Base at no additional cost to the District. The Contractor shall perform all excavation regardless of the type, nature, or condition of the material encountered to accomplish the construction. No blasting shall be permitted. B. TRANSPORT OF SPOILS Backfill stockpiles and excavation spoils which are not immediately loaded and hauled away shall have local approval from local jurisdiction. This material shall be placed on the site away from trenches, street corners, and active work areas and shall be placed in such a manner as to minimize obstruction to traffic. Gutters and ditches shall be kept clear, or other provisions shall be made for the handling of drainage. Section

117 C. EXCAVATION FOR VALVE PLACEMENT Mains shall be lowered below required minimum depths in the vicinity of gate valves 10-inches and larger in size. To accommodate the valve stem, the main shall be lowered as necessary to achieve the following minimum covers: For 10 valves, minimum cover of 36 inches For 12 valves, minimum cover of 38 inches D. ALIGNMENT The Contractor shall conform, as nearly as possible, to the pipeline alignment indicated on the plans unless modified by the Engineer. Whenever vertical or horizontal deflection of the pipe is required to avoid obstructions or where long radius curves are permitted, the degree of deflection at joints shall be approved by the Engineer. E. EXCAVATION AT BELL HOLES When bell holes are required they shall be excavated at each point where pipe ends are to be joined. Bell holes shall be adequately sized to permit ease in making the joint. When necessary, bell holes shall be shored and protected in conformance with CAL/OSHA requirements. F. SHORING The Contractor shall at all times comply with Safety Regulations set forth in the State of California, Construction Safety Orders and Trench Construction Safety Orders, issued by CAL/OSHA s Division of Industrial Safety. No excavation shall start until the Engineer has received 1) a copy of the Contractor s permit for the project from the State Division of Industrial Safety and 2) a copy of all project notification forms and/or letters that he has forwarded to the CAL/OSHA District office. Shoring shall follow a District approved shoring plan submitted by the Contractor. In order to prevent cave-ins and protect adjacent areas, excavation in unstable material shall be adequately shored and braced. Shoring shall remain in place until the pipeline has been installed, inspected and the earth compacted around and over the top of the pipe. Upon completion of the work the Contractor shall remove all shoring unless otherwise specified by the Engineer. G. ROCK EXCAVATION Wherever the word Rock appears in these Specifications, it shall be interpreted to mean any of the following: (1) material in ledges, bedding deposits of unstratified masses which cannot be removed without the use of hydraulic or pneumatic hammers or continuous drilling and blasting, (2) boulders larger than Section

118 one cubic yard which, when first exposed, cannot be broken down from their original state with a modern ¾ cubic yard backhoe power excavator or a Caterpillar D8 with a single tooth ripper, in good condition, and cannot be safely transported in a vehicle for disposal, (3) concrete, asphalt or masonry structures which have been abandoned and cannot be broken down from their original state with a modern ¾ cubic yard backhoe power excavator and (4) conglomerate deposits which are so firmly cemented that they possess the characteristics of solid rock and cannot be removed without systematic drilling. H. TRENCHLESS INSTALLATION OF PIPELINES Trenchless installation of pipelines shall be defined as installation of pipe using a technique that does not require open cut excavation along the length of the pipe installed. Examples of typical equipment include a pneumatic mole, directional bore, or cable-drawn splitting head equipment. Specific techniques may be required in certain areas as indicated on the Drawings. 3.7 DEWATERING AND DRAINAGE The Contractor shall provide all equipment and labor adequate to keep all trenches and excavations free of water. The Contractor shall keep excavated areas free of standing or flowing water during pipe installation, concrete placement, and backfilling operations by draining or pumping from a point that is outside the structural limits of work and below that of the excavation. The Contractor shall also provide a positive means to assure that no water will enter previously installed pipe. The Contractor is responsible for obtaining and complying with any discharge permits required by any appropriate regulatory authority and shall not direct drainage effluent in such a manner that damage to adjacent property or natural watercourses occurs. 3.8 REFILLING TRENCHES A. GENERAL The Contractor shall place backfill material around structures and in other areas, including overexcavation areas, as shown on the plans and as specified by the Engineer. Backfill shall be placed immediately subsequent to installation of the pipeline and appurtenances, and shall be installed in loose lifts not exceeding eight inches in depth. Compaction requirements shall be 95% relative compaction for Class II Aggregate Base Rock and 90% for native backfill to a depth of 18 inches below the bottom of the required paving and 90% relative compaction below that level. Material shall be moistened as required to aid compaction. No foreign materials (blocking) shall be left in the trench. B. GEOTECHNICAL TESTING 1. TESTING BY ENGINEER Section

119 C. STEEL PLATES a. The District shall conduct all soils testing. Soils compaction tests will be taken on a random basis, approximately one test per 100 feet (location determined by the Engineer). Where testing is done, one test shall be taken on the lower lift and one on the upper lift of the base rock. b Testing shall be accomplished in accordance with ASTM D2922 or California Test Method No c. The District will bear all costs of testing except that of a failed retest. The cost of $100 per each retest shall be deducted from any payment due to the Contractor. Steel traffic plates shall not be used without the expressed written approval of the Engineer and the local jurisdiction in control of street openings and encroachments. It is the Contractor s responsibility to contact and secure permission for steel plate use prior to construction within each specific jurisdiction. Steel traffic plates, where approved, shall have a non-skid surface. The determination for use shall be made by the Engineer and shall be final. D. COMPACTION EQUIPMENT, METHODS, AND REQUIREMENTS 1. GENERAL Care shall be exercised in any method of backfilling to avoid damage to the protective coating or mortar lining of the pipe. It is important that proper precautions be taken to prevent floating of the pipe. The Contractor shall be wholly responsible for any damage resulting from failure to take necessary precautions when placing and compacting backfill. Compaction equipment or methods that produce horizontal or vertical earth pressures, which may cause excessive displacement or which may damage nearby structures, shall not be used. Use of a hydraulic hammer for compaction will not be allowed. Backfilling shall conform to the requirements of the applicable local jurisdiction or those included in these specifications, whichever is more stringent. In the case of conflict between the requirements, the Engineer shall determine which shall prevail. The Contractor should note that he shall be required to install impermeable dikes in areas where existing grades are 10% or greater. The Contractor shall be responsible to determine grades. Impermeable dikes shall be made of Type II concrete, or native clay soils compacted to 95%. Each impermeable dike shall be as wide as the trench, a minimum of six inches in thickness and extend from the bottom of the trench to a point 12 Section

120 inches above the pipe. Dikes shall be located every 50 feet where required. 2. PAVED AREAS Backfill materials shall be moistened to near optimum moisture content and shall be placed in the trench on both sides of the pipe for the full width of the trench. Sand shall be brought up evenly on both sides of the pipe. Said materials shall be placed into the trench by hand or by approved mechanical methods, and be compacted to provide solid backing against the external surface of the pipe. The Contractor shall not place or compact backfill above springline until the Engineer has inspected and approved the lower portion of backfill. Flooding of this lower portion of backfill will not be permitted. The remaining backfill shall be placed in uniform horizontal layers not to exceed eight inches in loose thickness before compaction. Each layer shall be dampened sufficiently and uniformly tamped, rolled with a vibratory compactor or otherwise compacted throughout until the relative compaction is satisfactory. Non-uniform compacted surfaces may be rejected. Inundation of this upper portion of backfill will not be permitted. The material between the bottom of pavement and a plane 18 inches below that, shall be worked until a minimum relative compaction of 95% throughout is reached. Material below that plane shall be compacted to a minimum of 90% relative compaction throughout. Backfill within 10 feet of any mainline valve shall be placed and compacted in 6-inch lift thicknesses. Backfill shall be compacted to within one inch of finished grade prior to placement of temporary pavement. The Contractor shall compact temporary pavement as required in Section daily on all surfaces where paving has been removed. Impact compaction machines, such as a Hydra Hammer, and backhoe mounted compaction machines, such as a HedShaker, shall not be used. The Contractor shall compact all backfill to the specified relative compaction as it is being installed. Wheel-rolling will not be allowed. All excavations shall be restored to the elevation of surrounding pavement prior to completion of each day s work. If any sections of restored trench settles below the surrounding pavement, the Contractor shall re-work the trench to the same elevation as the surrounding pavement each day. Any backfill material which cannot be compacted to the specified degree will be rejected. Any backfill material which pumps or is not firm will be rejected even if compaction requirements are satisfied. The Contractor, at his expense, shall remove the rejected material and replace it with suitable material. Section

121 3.9 FINISH GRADING Particular care shall be taken in the backfilling and compaction of the area around the taps to the main. Hand tamping will be required rather than equipment tamping or rolling. Except where shown otherwise in the Drawings, restore the finish grade to the original contours and to the original drainage patterns. Grade surfaces to drain away from structures. The finished surfaces of the tank pad and access road shall be smooth and compacted. The graded surfaces to receive slope protection shall be furrowed to better match the surface of the undisturbed natural areas adjacent to the project site DISPOSAL OF MATERIAL Any excess backfill material or material rejected by the Engineer shall be removed from the job site by the Contractor. He shall make all necessary arrangements for the proper and legal disposal of excess material, at his cost, and upon request shall provide written evidence indicating approval to use the disposal site. END OF SECTION Section

122 PART 1 - GENERAL 1.1 DESCRIPTION SECTION ASPHALTIC CONCRETE PAVING AND RESURFACING This section includes specifications for all labor, material, testing, and equipment required to furnish and place asphaltic concrete paving and resurfacing on streets, bicycle and multi-use paths, and other areas as shown on the Drawings, described in the Specifications, and as required to provide a uniform, durable surface to satisfactorily support traffic loading and maintain existing drainage patterns. 1.2 RELATED SECTIONS Section EARTHWORK Section CONCRETE PAVING Section CONTROL DENSITY FILL 1.3 SUBMITTALS Material submittals for the following are required in accordance with Section CONSTRUCTION SUBMITTALS A. A mix design that is suitable for the traffic, climate conditions, curing conditions and final use. B. A certificate of compliance for asphaltic binder. C. Samples, specifications and manufacturer s recommendations on placement of pavement reinforcing fabric, if applicable. D. Latex emulsion specifications. 1.4 QUALITY ASSURANCE Material tags for Asphaltic Concrete materials shall be submitted by the Contractor to ensure compliance with submittals. The Contractor shall notify the Engineer two working days prior to paving, so the Engineer may observe operations and take material samples. 1.5 COORDINATION In order that acceptance tests and mix design tests can be completed prior to paving, surfacing, or sealing, at least two weeks in advance of paving or sealing operations the Contractor shall: Section

123 A. Notify the Engineer of the source of materials and the mixing plant from which he intends to purchase paving materials. B. Provide material submittals as specified earlier in this section. PART 2 - PRODUCTS 2.1 ASPHALTIC CONCRETE PAVING MATERIALS A. PAINT BINDER (TACK COAT) Diluted asphaltic emulsion, Type SS-1 conforming to Caltrans Standard Specifications Section 94. B. PAVEMENT REINFORCING FABRIC Fabric shall conform to Sections 39 and 88 of the Caltrans Standard Specifications. C. ASPHALTIC CONCRETE At the time of delivery to the work site, the temperature of the mixture shall be between 260 degrees F and 320 degrees F, the lower limit to be approached in warm weather and the higher in cold weather. 1. Aggregate: Type A, ½ maximum, medium grading, Caltrans Standard Specifications, Section Paving asphalt: PG or grade, steam refined paving asphalt, Caltrans Standard Specifications Sections 39 and Mix design: Conform to Caltrans Standard Specification, Section D. SAND SEAL Sand seal shall be a Fine Type Bituminous Seal in accordance with Section 37 of the Caltrans Standard Specifications. E. SLURRY SEAL Slurry seal shall consist of asphaltic emulsion, Type II aggregate, and water in accordance with Section 37 of the Caltrans Standard Specifications. F. FOG SEAL Fog seal shall consist of a light spay application of SS-1h emulsified asphalt diluted with water in accordance with Section 37 of the Caltrans Standard Specifications. G. CHIP SEAL Section

124 Chip seal shall consist of a spray application of asphalt to an existing surface, followed by a cover of rock chips or screenings, to function as a seal coat. The asphalt used for chip seals must be fluid enough to wet and adhere to the chips and yet develop sufficient strength to bind the chips to the pavement and retain them under traffic conditions. All work and materials shall be in accordance with Section 37 of the Caltrans Standard Specifications. H. LATEX EMULSION Latex asphalt emulsion shall be a quick traffic, quick cure (QT-QC) type, shall be homogeneous and show no separation after thorough mixing, shall break and set on the aggregate within five (5) minutes and be ready for cross-traffic within five to thirty minutes. Poly-chloroprene-methacrylic acid latex with polyvinyl alcohol shall be added to the water/soap phase prior to the mill manufacture of the emulsified asphalt by the emulsion producer. The amount of latex shall be between 2 and 3 percent of the asphalt residual content. Samples shall be provided. 2.2 STREET MARKING MATERIAL All street marking material shall match existing material and shall be as specified in Section 84 of Caltrans Standard Specifications. PART 3 - EXECUTION 3.1 TEMPORARY PAVING Temporary paving is required unless otherwise specified. A. Temporary asphaltic plant mix shall be placed and compacted immediately after backfilling, road base compaction or pothole repairs have been completed. Temporary paving shall be repaired on a daily basis. B. The compacted temporary pavement shall have a minimum thickness of one inch or match permit requirements whichever is greater, shall have a relatively smooth surface, and shall be maintained at all times at a grade level with the adjacent street pavement surface, until permanent pavement is placed. C. Temporary pavement shall be removed just prior to placing the final pavement surfacing material, and disposed of at the Contractor s expense. 3.2 PROTECTION OF EXISTING SURVEY MONUMENTS The Contractor shall not disturb, remove, alter or destroy any existing land survey monument. In the event that the contractor believes that a monument will be thus impacted, the Contractor shall notify the Engineer. The Contractor shall allow 10 working Section

125 days for the Engineer to establish sufficient data to reset the monument after the completion of the construction. 3.3 SUBGRADE The subgrade shall be prepared as specified in Section 02200, Earthwork as applicable to roadways. The surface of the subgrade after compaction shall be hard, uniform, smooth and true to grade and cross-section. Subgrade for pavement shall not vary more than 0.02 foot from the specified grade and cross sections. Subgrade for base material shall not vary more than 0.04 foot from the specified grade and cross section. 3.4 SURFACE PREPARATION A. After final pavement sawcutting and prior to final paving, any CDF, temporary paving and base fill shall be removed to a depth sufficient to allow paving restoration as required by the controlling jurisdiction s encroachment permit. The Contractor shall recompact any disturbed base material to 95%. B. Prior to placing final plant-mixed surfacing, the subbase and edges of sawcut pavement shall be cleaned to remove all mud, foreign material, dust and dirt. 3.5 SECOND PAVEMENT CUTS If second pavement cuts are required by the Drawings, Encroachment Permit, or Engineer, the second cuts shall occur after all main pipe and service installations at an individual work site have been completed. Second cuts shall be made during the final paving operation, no earlier than five days prior to placing final plant-mixed permanent surfacing. Any cutting that requires water shall be done with a vacuum system that collects all the water and does not allow any water or cutting products to flow into the storm drain. 3.6 ASPHALTIC PAINT BINDER Asphaltic paint binder shall be applied to all vertical surfaces of existing pavement, gutters, and construction joints, and to the existing base to be surfaced. The binder shall be uniformly spread at an approximate rate of 0.25 gallons per square yard of surface covered or as recommended by the manufacturer and reviewed by the Engineer. NO BINDER SHALL BE PLACED IF THE PAVEMENT IS WET, OR IF THE AMBIENT TEMPERATURE IS BELOW 50 F. Care shall be taken to prevent the application of binder to surfaces that will not be in contact with the new asphalt concrete pavements. Section

126 3.7 PAVEMENT REINFORCING FABRIC After applying asphalt binder, if required by the contract documents, the Contractor shall install paving reinforcing fabric in strict accordance with the manufacturer s recommendations. A. Asphalt binder shall be applied to a width equal to the width of the fabric mat plus three inches on each side. B. All fabric shall be placed in a neat and smooth manner with a minimum amount of wrinkles as approved by the Engineer. If the fabric can be gathered together in a wrinkle or lap, and if the height of the doubled portion of extra fabric is ½-inch or more, the fabric shall be cut to remove the wrinkle, and then lapped in the direction of paving. Laps in excess of two inches shall be removed. The fabric shall make complete contact with the road surface. C. If a joint in the fabric is required, approximately 0.20 gallons per square yard of additional asphalt binder shall be applied to the joint, made by overlapping a minimum of 4-inches of fabric. D. Rolling of the fabric after placing will be permitted. Damage or distortion to the fabric resulting from vehicles, equipment or construction operations shall be repaired at the Contractor s expense. E. Public traffic shall not be allowed on the bare reinforcing fabric. Paving operations shall immediately follow fabric placement in order to minimize fabric exposure. 3.8 PAVING A. Permanent paving shall follow completion of all connections to the main line and transfers of services at each individual work site. Work sites are defined as each street or area listed in Special Provisions Section LOCATION OF WORK. B. The Contractor shall conform to Caltrans Standard Specifications, Sections 19 and 39, and applicable City/County specifications for asphaltic concrete installation. C. The final paving surface (grade and thickness) shall be as required in the encroachment permit. Replacement of existing paving shall follow the encroachment permit covering that area of work but in no case shall paving be placed prior to the Engineer s approval of the finished road base installation. The final surfaces shall be subject to the approval of the Engineer and the controlling jurisdiction. D. Spreading, once-commenced, must be continued without interruption. No greater amount of the mixture shall be delivered in any one day than can be properly distributed and rolled during that day. Section

127 E. Asphaltic concrete shall be placed in lifts of no more than three inches in thickness unless otherwise directed by the Engineer. For paving thicknesses of three inches or greater, paving shall be placed in a minimum of two lifts. Where two or more lifts are required, a tack coat shall be applied between each lift. F. The mix shall be compacted immediately after placing. Initial rolling with a steelwheeled tandem roller, steel three-wheeled roller, vibratory roller, or a pneumatic-tired roller shall follow the paver as closely as possible. If needed, intermediate rolling with a pneumatic-tired roller shall be done immediately behind the initial rolling. Final rolling shall eliminate marks from previous rolling. In areas too small for the roller, such as areas where pavement is less than four feet wide, a vibrating plate compactor or a hand tamper shall be used on each lift to achieve thorough compaction. G. The relative density after compaction shall be between 90 and 95 percent of the theoretical maximum density. A nuclear asphalt testing device shall be used at the discretion of the Engineer for determining the field density of compacted asphalt concrete. H. Asphaltic concrete shall not be placed when the atmospheric temperature is below 40 degrees F. I. Water valve access covers shall be adjusted to grade. 3.9 SEAL COATS A. Proportioning, mixing, and placing of seal coats shall conform to Section 37 of the Caltrans Standard Specifications. Latex Asphaltic Emulsion shall be added at a rate from 11 to 25 percent. B. Seal coats on trenches shall extend a minimum of 6 inches over the original pavement on each side of the trench, or as specified in the encroachment permit, whichever is greater STREET MARKINGS A. The Contractor shall furnish all equipment, materials, labor, and supervision necessary for installing pavement striping and markings as specified in the contract documents, or as required to replace markings which have been removed or damaged by construction operations. Street markings must be approved by the governing jurisdiction. Section

128 B. Markings shall be replaced only when the pavement surface is dry and clear, and when the air temperature is above 40 degrees F. C. All equipment used in the application of pavement marking shall produce stripes and markings of uniform quality with clean and well-defined edges. Drips, overspray, improper markings and paint material tracked by traffic shall be immediately removed from the pavement surface as directed by the Engineer. D. The Contractor shall provide an experienced technician to supervise the location, alignment, layout, dimensions, and application of pavement delineation. E. When part of a pavement marking has been removed or obliterated, the ENTIRE MARKING shall be restored. The Contractor shall replace complete words or lines for all letters or lines of street markings that are removed or partially destroyed during construction operations. Restored word markings, letters, numerals, and symbols shall be identical to existing. All templates and stencils shall be obtained by the Contractor. F. The Contractor shall remove all temporary street markings and signs upon completion of each job under this project REPAIRING DEPRESSED PAVEMENT A. Depressed trench pavement shall be repaired by first removing the defective pavement to a minimum depth of 1-1/2 prior to placing additional asphaltic concrete. Raising the level by placing the additional asphaltic paving over the depressed existing paving in the trench will not be accepted by the District. The cost of repairing depressed pavement shall be borne by the Contractor LIMITS OF PAVEMENT REPAIR Where resurfacing is limited to pavement repair over trenches, the following shall define the minimum required limits of paving. All costs incurred in performing this work shall be incidental to paving replacement. A. Any areas of overbreak shall be squared and that portion of the existing pavement shall be removed and replaced as part of the new trench resurfacing. B. Should voids develop under existing pavements during construction, those affected pavements shall be neatly cut in straight lines and replaced after the voids have been filled and compacted to 95% or greater. Section

129 C. All pavement damaged by the work but not specifically part of the work shall be repaired as closely as is possible to existing conditions at the time the work on that portion of the project began. D. Sawcuts shall be in a straight line parallel to the centerline of the trench. E. Where a longitudinal trench is partly in pavement, the pavement shall be replaced to the original pavement edge, on a straight line, parallel to the centerline of the roadway. END OF SECTION Section

130 PART 1 - GENERAL 1.1 DESCRIPTION SECTION CATHODIC PROTECTION MAGNESIUM ANODES This Section includes specifications for materials used for the cathodic protection of buried ferrous pipe and accessories. PART 2 - PRODUCTS Unless otherwise noted, the materials for work performed under this section shall be provided by the District. PART 3 - EXECUTION 3.1 INSTALLATION A. CORROSION TEST STATIONS AND CABLE CONNECTIONS 1. Corrosion test stations shall consist of conduit outlets, aluminum tubing and cover outlets or meter box outlets where test leads connected to the pipeline are terminated. The type of outlet and location shall be as indicated on the Drawings or located by the Engineer at the time of installation. 2. The test lead cables shall be Type TW No. 8 and no splicing will be allowed. The Contractor shall provide enough slack in the cable near the main so that backfill will not break the connection. Cables may be run in the same trench with pipe, and 30 inches of cover must be maintained in horizontal runs. Twelve (12) inches of slack shall be provided at outlets to permit withdrawing ends for test purposes. 3. Cable connections shall be made to steel pipe by gas brazing or by Cadweld Type TB-3 connections. Connections to cast iron pipe shall be made by means of Cadweld Type HB connections. In all cases, wires and the surface to which they connect shall be cleaned and prepared in accordance with the manufacturer's recommendations, and only 100% welds, free of defects, will be accepted. After connection and approval by the Engineer, bare wire and pipe shall be primed and coated with tape. Section

131 B. PROTECTION ALONG STEEL PIPE SECTIONS Near the termination of steel pipe sections, jumper wire shall be cadwelded to the steel pipe on one end, with the other end to be pulled into a test station that is to be set as indicated on the Drawings. Where steel pipe sections surround an insulated piece of equipment or insulated section of pipe less than 3 ft. in length, a continuity wire shall be cadweld to each steel pipe section for continuity of cathodic protection across the insulated area. C. PROTECTION OF COUPLINGS Where flexible couplings and transition couplings are installed, a jumper wire shall be cadweld to the body of the coupling on one end and tied into another bonding jumper wire that is already part of the cathodic protection system at the other end as indicated on the Drawings. D. PROTECTION OF METALLIC FITTINGS ON PLASTIC PIPELINES Near the termination of all PVC and plastic pipe sections greater than 3 ft. in length, tracer wire shall be pulled into a test station that is to be set as indicated on the Drawings. Tracer wire shall be laid parallel to all PVC and plastic pipelines. Split-bolt connections shall be installed along the tracer wire where another tracer wire shall be run from the split-bolt connection and cadweld to any metallic fittings (saddles, mech. joint fittings) installed along the PVC/plastic pipeline. E. ANODE PLACEMENT Anode shall be buried approximately 2 ft. away from the pipeline. Anode may be installed vertically in an augured hole with native backfill tamped carefully to afford good soil contact. Copper lead wire shall be pulled into a test station location set as indicated on the Drawings. Provide slack in all wires used in cathodic protection so that wires are not broken during backfill. 3.2 TESTING AND INSPECTION Contractor shall set utility box(es) and/or aluminum tubing as indicated on the Contract drawings. Upon installation of anodes, continuity, bonding and jumper wires, Contractor shall pull leads into test station location and notify District for testing. END OF SECTION Section

132 PART 1 - GENERAL 1.1 DESCRIPTION SECTION DISTRIBUTION PIPING SYSTEM This section includes specifications for materials, testing and installation of all piping, fittings, valves, and accessories as shown on the Drawings, described in the Specifications and as required to completely interconnect all existing and new piping for a complete and operating system. This section applies to all buried pressure water systems. 1.2 RELATED SECTIONS Section EARTHWORK Section CATHODIC PROTECTION Section FIELD APPLIED TAPE COATING SYSTEMS 1.3 REFERENCES The standards of organizations listed below are cited and modified as noted within these specifications. Citations refer to the most recent publications of these organizations standards. A. American Water Works Association (AWWA) B. American Society for Testing Materials (ASTM) C. National Association of Corrosion Engineers (NACE) D. American Welding Society (AWS) E. National Sanitation Foundation International (NSF) PART 2 - PRODUCTS 2.1 CONTRACT MATERIALS Unless otherwise noted, the materials for work performed under this section will be supplied by the District. Temporary materials for flushing, disinfecting, hydrostatic testing and for keeping the existing piping in service until the new piping is in service shall be provided by the Contractor. Section

133 2.2 MATERIAL INFORMATION The following material information is provided for the contractor: A. Piping is stocked and issued in 20 foot lengths with bell & spigot joints B. Welded steel pipe is mortar lined and tape or extrusion coated C. Weld Ells (Elbows) are stocked and issued in 45 and 90 degree sections PART 3 - EXECUTION 3.1 GENERAL It is specifically brought to the Contractor's attention that the pipeline has not been designed as an "engineered" project. The Contractor is given latitude to modify the profile as best fits existing field conditions. As such, all fabrication shall be done in the field after the location of existing utilities has been determined. No extra payment will be made for changes in the design as a result of either shown or unshown utilities, structures or field conditions. It is incumbent upon the Contractor to expose all utilities and structures prior to commencement of the work on the project. For pipe with diameter greater than 12 inch, transmission pipe, the intent of the layout shown on the plans is to minimize the changes in grade and the number of elbow fittings used. Grade conflicts with existing utilities are to be avoided by gradual change of grade in the pipeline. 3.2 HANDLING MATERIAL The Contractor shall provide and use proper equipment and tools for the safe and convenient prosecution of the work. All pipe, fittings, and valves shall be carefully lowered into the trench in such manner as to prevent damage to surfaces, lining, coating, appurtenances or other parts necessary for the materials usefulness. Any such damage shall be repaired by the Contractor at his own expense. 3.3 PIPE INSTALLATION A. All of the pipe shall be thoroughly cleaned of all dirt, rock and other debris that may be found in the interior of the pipe. If considered necessary by the Engineer, he may direct the Contractor to swab the pipe to clean it. Prior to placement of the pipe, the Contractor shall repair any damage to the exterior coating. B. Nothing herein shall preclude the method of assembling and welding the pipe in suitable sections above ground to reduce the number of below ground joints. If this method is adopted, the Contractor shall temporarily support the line on adequately sized and spaced timbers across the trench. The timbers shall have a minimum of one foot of bearing length on each side of the trench. Each support Section

134 shall be padded to prevent any damage to the exterior coating of the pipe. When lifting and lowering multiple-pipe sections, the Contractor shall utilize the number of support locations and pieces of lifting equipment required by the Engineer. C. Each joint of steel or steel cylinder pipe shall be lifted by means of belt-type slings approved by the Engineer. The slings are to provide support in order to prevent damage to the coating or undue, injurious deflection of the pipe while lowering it into the trench. When lifting and lowering other pipe types, the Contractor may utilize other means approved by the Engineer. In no case shall wire rope or chain be used for such purposes. D. When lowering single lengths of pipe into the trench, each shall be lifted and held in two properly spaced locations and lowered in such manner as to prevent undue deflection. Such procedures shall be approved by the Engineer prior to assembly and installation. E. The pipe shall be bedded and installed evenly so that the pipe barrel will be in full bearing for its entire length. After the trench has been excavated and prepared in accordance with these specifications, the pipe shall be carefully lowered into place and adjusted accurately to the required line and grade. Any blocking used to support the pipe during laying shall be removed after sufficient backfill has been placed to hold the pipe on the required line and grade and before laying the next section. Each pipe shall have a firm bearing for its full length in the trench. F. Pipe shall be installed upgrade (low elevation to high elevation) and the socket or collar ends of the pipe shall be installed on the upgrade side unless otherwise authorized by the Engineer. G. Change in the pipeline grade, slope or horizontal direction, which are in excess of that allowed within the pipe joint, shall be constructed from the fittings furnished. Weld ells shall be trimmed by the contractor to the angle necessary to accomplish the required change. 3.4 SEPARATION AND CLEARANCE A. A minimum vertical clearance of six (6) inches shall be maintained between a water facility and any obstructions. B. A minimum vertical clearance of twelve (12) inches shall be maintained between high pressure or transmission gas, electrical/ communication ducts and conduits. C. The minimum vertical clearance and horizontal separation between water and sewer, recycled or storm drain facilities shall be in accordance with standards established by the State Department of Health Services and Title 22, Section of the California Administrative Code. The design guidelines of the Engineer are the following: Section

135 3.5 PIPE JOINTING The horizontal separation between water and sewer mains shall attempt to maintain a distance of not less than 10-feet. The horizontal separation between water mains and storm drain, recycled or raw water piping shall attempt to maintain a distance of not less than four (4) feet. Where the water main must cross a sewer, storm drain, recycled water or raw water pipe, the crossing shall be made as close to a 45 degree angle as possible and the bottom of the water facility shall be as close to 12-inches above the top of the sewer pipe as possible. When the water main installation crosses any sewer, a minimum of eight (8) feet shall be maintained between the sewer and any pipe joint on the new water pipeline. If these conditions cannot be met, variations will be allowed as determined by the Engineer. A. General The type of joint to be used normally will be indicated on the plans or in the specifications for this contract. If not designated, the type of joint may be any of those listed in the paragraphs below. The Contractor shall use care in making all joints, and shall strictly follow appropriate installation procedures as indicated by the manufacturer or as directed by the Engineer. In general, installation requirements for several, but not all joint types are as follows: B. Welded Joints 1. For bell and spigot joints, the spigot must stab at least one half of the bell depth. District standard piping has a 2-inch bell. This pull dimension limits the deflection allowable in a welded joint. 2. All welding shall be done in accordance with American Welding Society Standards and Field Welding of Steel Water Pipe, A.W.W.A. C206. Welders shall be qualified in accordance with Section 4.4 of the AWWA specification, and proof of certification may be required by the Engineer. 3. All welds shall be made with the electric arc process. All welding rods shall be furnished by the Contractor and shall be Lincoln Fleetwood 5P or equivalent as determined by the Engineer. All welding machines shall be equipped with a voltmeter and ammeter in good working condition. Continuous feed wire welding shall not be allowed for any field welding. 4. Tack welds shall have 100% penetration, and in the event that any tacks break, they shall be completely chipped out before circumferential welding is started. Section

136 5. Welds shall be made in two or more passes. The number of filler and finish beads shall be such that the completed weld shall have a substantially uniform cross section around the entire circumference of the pipe. The entire root bead shall be made with the pipe in a stationary position and successive beads shall not be started at the same location. The crown of the finished weld shall not be raised above the parent metal by more than 1/16 of an inch. A maximum undercut of 1/32 of an inch may be permitted. Weld penetration shall be 100% and the thickness of weld shall be equal to or greater than the wall thickness of the pipe. Each bead shall be completely cleaned of all slag and extraneous materials with a pointed chipping hammer and a stiff wire brush after each pass. Welding shall not be performed when surfaces are wet or during periods of high winds unless the operator and work are properly protected. 6. Slag inclusion is permissible where it occurs between layers of the weld and is equal to not more than one-half the width of the weld metal measured in a direction parallel to the face of the weld and when its greatest dimension measured in a direction perpendicular to the face of the weld does not exceed 10% of the throat. 7. Gas pockets are permissible that do not exceed 1/16 of an inch in the greatest dimension and when there are no more than six gas pockets of this maximum size per square inch of the weld metal or where the combined areas of a greater number of pockets do not exceed 0.02 square inch per square inch (2% of weld metal). 8. Joints between plain ends shall be made using butt straps as specified by the Engineer. Butt welding between plain ends of pipe shall not be allowed. 9. The District may require weld radiographs of joints where necessary. Such radiographs will be interpreted by persons who are qualified through training and experience to perform this service. Should any welds not conform in quality to the minimum requirements, they shall be replaced by the Contractor at no cost to the District, and the Contractor will be charged the costs of obtaining and evaluating the radiographs. No charge will be made to the Contractor for radiographs of satisfactory welds. C. Slip-on Joints The slip-on type joint installation applies for several different types of pipe including ductile iron, cast iron (Tyton), polyvinylchloride (PVC), and asbestos cement (AC) pipe. In all cases, the Contractor shall follow the manufacturer s installation procedures. In general, the procedure for slip-on joints will be as follows: Section

137 1. All foreign matter shall be removed from the gasket, groove, and bell (or coupling). In addition, the spigot of the entering pipe must be clean for a minimum of 8-inches from the stab end. 2. The gasket shall be installed so that it is evenly seated in the groove within the bell (or coupling) and in accordance with the manufacturer s recommendations. 3. Approved lubricant shall be applied to the installed gasket, the bell (or coupling) interior, and the pipe spigot (from the taper end to a point outside the full insertion length). Lubricant shall not be applied to the groove. Any lubricants which are used to facilitate jointing shall conform to the American Water Works Association and National Science Foundation standards for use in potable water systems 4. With the pipe sections in alignment and the pipe ends in contact, sufficient force shall be applied to the entering pipe so that the spigot is pushed through the gasket and against the back of the bell (or coupling). If an insertion mark is provided, it should be flush with the end of the coupling (or bell) upon completion of the joint. 5. If field cuts are required, all cuts will be squared to the Engineer s satisfaction and the spigot end beveled in accordance to the manufacturer s recommendations. 6. Maximum deflection at or between joints of full sticks (20 feet) of pipe shall be as allowed by the Engineer or manufacturer s specifications. For example, ductile iron pipe joint deflections may vary from five degrees for 4-inch pipe to three degrees for 12-inch pipe. However, the maximum deflection joint to joint shall be 1.0 foot. PVC is known to fail at service taps at the manufacturer's maximum allowable deflection. D. Mechanical Joints The mechanical type joint installation applies for several different types of pipe including ductile iron, cast iron (Tyton), polyvinylchloride (PVC), and asbestos cement (AC) pipe. In all cases, the Contractor shall follow the manufacturer s installation procedures. In general, the procedure for mechanical joints will be as follows: 1. All foreign material other than the standard coating shall be removed from the outside of the spigot and the inside of the bell in the area within 8 inches of the joint end. The follower gland shall then be slipped on the spigot end of the pipe with the lip extension of the gland toward the socket or bell end. The rubber gasket shall be placed on the spigot end with the thick edge toward the gland. Section

138 2. The entire section of the pipe shall be pushed forward to seat the spigot end into the bell. The gasket shall then be pressed into place within the bell, being careful to insure that the gasket is evenly seated around the entire joint. Then the follower gland shall be moved along the pipe into position for bolting. After bolt insertion and hand tightening, all nuts shall be tightened with a suitable (preferably torque-limiting) wrench. The torque for various sizes of bolts shall be as follows: Range of Torque Bolt Size (Inches) (Ft. - lbs) 5/ / / Care shall be taken in final tightening of nuts in order to produce an equal pressure on all parts of the gland. 3. Maximum joint deflections shall be those allowed by the Engineer or manufacturer s specifications. For example, deflections may vary from five degrees for 4-inch pipe to three degrees for 12-inch pipe. E. Threaded Joints The threaded type joint installation applies for several different types of pipe including galvanized threaded pipe and brass pipe. In all cases, the Contractor shall follow the manufacturer s installation procedures. In general, the procedure for threaded joints will be as follows: 1. All foreign material other than the standard coating shall be removed from the outside and the inside within 8 inches of the joint end. The pipe.shall be jointed at threaded ends with a threaded coupling. 2. Where the pipe is cut and no threaded end exists, the contractor shall clean, prepare and thread the end of pipe to make the connection with the threaded coupling. Section

139 F. Installation of HDPE Fireline Spools 1. Install flat washers between the nuts and the back up ring. 2. The back up ring shall be moved along the pipe into position for bolting. After bolt insertion and hand tightening, all nuts shall be tightened with a suitable (preferably torque-limiting) wrench. The torque for various sizes of bolts shall be as follows: Range of Torque Bolt Size (Inches) (Ft. - lbs) 5/8 60 3/ Bolts shall be tightened in a cross pattern, first top, then bottom, then right, etc. Care shall be taken in final tightening of nuts in order to produce an equal pressure on all parts of the backup ring. 4. One hour after originally tightened to proper torque, all bolts shall be checked for proper torque value. Tighten all bolts to proper torque value. 5. The spool shall be backfilled with well consolidated sand and Class 2 road base to provide support to the spool piece. G. Installation of Flexible Couplings, Flanged Coupling Adapters and Joint Harnesses 1. Prior to installation, thoroughly clean oil, scale, rust, and dirt from the pipe to provide a clean seat for the gasket. Take care that the gaskets are wiped clean before they are installed. If necessary, gaskets may be lubricated with soapy water before installation on the pipe ends. 2. Connections to be made by the use of flexible couplings, or flanged coupling adapters shall have the follower ring, gasket and coupling barrel (middle ring) placed over the end of the pipe section already in place (in the trench, etc.). The other follower ring and gasket shall be placed on the next pipe to be joined. The pipe shall then be lowered as close as possible to the coupling barrel and shoved into position until there is approximately one-half inch space between the pipe ends and the coupling is centered over the space. Tighten bolts progressively, drawing up bolt on opposite sides a little at a time until all bolts have a uniform tightness. Workmen tightening bolts shall be equipped with torque-limiting wrenches or other favorably reviewed type. Section

140 H. Joint harnesses Provide joint harnesses (tie rod lug or attachment plate assemblies) across all flexible couplings and flanged coupling adapters, except where specifically indicated otherwise on the Drawings. Harnesses welded to pipe sections shall be done prior to applying protective coatings. For flanged coupling adapters, anchor studs may be substituted for the harnesses on pipe up to 12-inch. Design restraint for 1 ½ times the test pressure of the applicable service or 225 psi, whichever is greater. As a minimum, conform to Tie Rod Table in AWWA COATING AND LINING A. General As with all construction, the Contractor shall strictly conform to all safety regulations issued by CAL/OSHA s Division of Industrial Safety and take all precautions indicated by the material manufacturers whose products are used on the job. In particular, whenever his men or the inspector(s) are inside the pipe, the Contractor shall use caution and shall do the following: 1. Provide adequate ventilation, lighting and communication. 2. Prevent water flow in the pipe. 3. Insure that all valves are in the open position and are not operated until the pipe is vacated. 4. Remove all extraneous material that may cause future damage or contamination to the pipe interior. B. Coating 1. The Contractor shall follow the manufacturer s recommendations when coating the exterior joints of concrete cylinder pipe or other similar pipe. 2. All metallic surfaces on pipe, fittings, services or appurtenances (including existing pipes that are uncovered under this contract) which will be buried and which do not have a protective coating shall be cleaned and wrapped with tape in accordance with Section Prior to application of any specified tape, all bare metal and adjacent sound coating shall be thoroughly dried and cleaned by wire brushing, solvent cleaning, sandblasting, or other means as will be determined by the Engineer, to insure adequate bond of the field applied coating. Primer shall be applied by brush to all bare metal and adjacent surfaces and allowed to set according to the manufacturer s instructions. Section

141 C. Lining 4. All service tubing shall be cleaned to bright metal, free of contamination and moisture. The service pipe will be primed and PVC tape shall be spirally applied using two-inch wide tape with a minimum of one-half inch overlap. Sufficient tension shall be used so that there are no wrinkles. The tape will be a 10-mil PVC tape carrying UPC approval. 5. Steel pipe surfaces including pipe joints, damaged shop applied pipe coating, hydrant buries, valves and other fittings with less than 20 mils thickness shall be cleaned of all dirt, moisture, oil or other contamination and primed and tape wrapped. The pipe shall be circumferentially wrapped with enough tension to stretch the tape. The tape shall be overlapped at least 25%. No wrinkles or other voids will be permitted. 6. All exposed metal piping shall be primed and coated with the same system as adjacent pipe. Application shall be the same as for steel pipe. Surface preparation and application of prime and tape coatings shall be done by workers trained in this procedure. Demonstration of this training may be required. All field-applied coating shall be inspected and tested before backfilling. 1. Small Diameter Pipe: For pipe having an inside diameter of less than 22 inches, a dry mixed cement mortar with sufficient moisture for workability shall be placed as a fillet at the face of the cement lining and around the entire circumference of the bell prior to inserting the spigot into the bell. Immediately thereafter, an inflated ball of a diameter slightly larger than the inside diameter of the pipe shall be pulled past the mortared joint to remove any fins or mortar extruding into the pipe barrel. After the inflated ball has been disturbed past the joint recess, the adjoining pipe sections shall not be disturbed. Once the inflated ball has been pulled through the pipe, the joints can be welded together. 2. Large Diameter Pipe: For pipe having a nominal inside diameter of greater than 22 inches, a dry mixed cement mortar with sufficient moisture for workability shall be hand placed around the entire circumference of the joint after completion of the joint weld. The Contractor shall provide, at his expense, video inspection of the entire completed interior of the pipeline. The Contractor shall notify the District at least 48 hours in advance of the inspection. It is incumbent on the Contractor to provide clear and visible video inspection of the pipeline. The Contractor shall deliver one copy of the videotape to the District upon completion of the video inspection. Water shall not be placed in the pipeline until after the District approves the video inspection. Areas not mortared to the satisfaction of the Engineer shall be repaired and video inspection shall be repeated. Section

142 3.7 INSTALLATION OF APPURTENANCES A. General Appurtenances shall be installed on the pipeline by the Contractor at the locations shown on the Drawings, or as directed by the Engineer. The details of the installations as shown on the Drawings, or described in the Specifications are typical only, and final installations may have to be varied to meet field conditions at the time of installation. B. Fittings C. Valves Joints between pipe and fittings shall be made in a manner similar to the method followed in joining the main sections of pipe. The trench bottom shall be graded uniformly so that no torsional strain will be placed upon fittings or connecting devices when backfill is placed. Proper thrust restraint shall be installed. Valves are to be installed by the Contractor in the locations shown on the drawings and as directed by the Engineer. All valves shall be set with valve stems in a vertical plane (+ 1%) parallel to the line of the pipe. Unless otherwise directed by the Engineer, all valves shall be fully supported on 2 x 12 redwood blocking which rests firmly on undisturbed ground. Butterfly valves shall be installed such that offset underground operators are northerly or easterly of the line of pipe. The Contractor will be required to install operating nut extensions for all butterfly valves and for any valve where the operating nut will be four feet or more below finished grade. The installation shall be made after final grade is established and such that the top of the extension is a maximum of 12-inches below final grade. D. Electrical Continuity at Valves and Hydrant Buries Electrical continuity shall be preserved across valves, hydrant buries, and any other epoxy-coated flanges where no flange insulating kits are indicated. The Contractor shall grind each epoxy-coated flange at one bolt hole to remove sufficient epoxy coating to assure that the bolt head and nut seat on bare metal. E. Valve Tubing, CTS Tubing, and Gate Caps In general, valve and corrosion test station (CTS) tubing shall be installed to existing grade and raised continuously until final pavement is complete or as directed by the Engineer. The tubing shall be installed perpendicular to the main such that the operating nut, extension or terminal block is centered in the tubing. The tubing shall be primed and wrapped. A gate cap shall cover the tubing at all times after installation. The Contractor shall, at his own expense, clean or replace any valve caps which are not in the same condition as when issued. In addition, an asphalt ring shall be placed around the top of the valve tubing to the Engineer s Section

143 satisfaction. Normally the asphalt ring shall extend 12 inches outside the tubing and be placed with a thickness of four inches. F. Blowoffs Blowoffs are to be installed by the Contractor in accordance with the typical details shown on the Standard Drawings. The Contractor shall perform all cutting, fitting and threading necessary to fabricate the blowoff and connect it to the pipe. G. Pressure Regulating Stations Pressure regulating stations are to be installed by the contractor at locations shown on the Drawings or as directed by the Engineer. The regulating stations shall be constructed such that all appurtenances are fully accessible and can be freely maintained and operated. Pits and blocking shall be set on native soil or Class II aggregate base. The Contractor shall perform any cutting, fitting and threading necessary to fabricate the pressure regulating system and connect it to the pipe. H. Marker Posts In unpaved areas, District-furnished marker posts indicating mainline, drain, blowoff and air valves, easements or other facilities shall be installed as shown on Drawings or as directed by the Engineer. 3.8 HYDRANT INSTALLATION A. Hydrants of the type indicated on the plan shall be installed by the Contractor in the number and the locations indicated on the drawings or as directed by the controlling Fire Chief, or Engineer. All hydrants shall be accurately set (+ 1% vertical) and leveled at the proper elevation as indicated by the local fire jurisdiction above the finished grade. Hydrants shall be suitably blocked with concrete thrust blocks. Hydrant details and their relationship to the curb and/or sidewalk are shown on the Standard Drawings. B. New hydrant bodies are to be received by the contractor at the offices of the appropriate Fire Department and transported to the site. C. Each hydrant shall be covered with a burlap bag until it is activated following permanent connection of mainline piping to the existing system. The Contractor shall protect fire hydrants whenever the Engineer determines that the situation warrants such protection. Existing hydrant bodies shall be returned to the governing fire department. D. Hydrant Bollards shall be installed as shown on the plans and detailed in the Standard Drawings. The material shall be provided by the District (pipe) except as noted otherwise (concrete and coatings.) Section

144 3.9 SERVICE LATERALS A. Service laterals may be installed using either open cut or trenchless techniques, as described in Section B. All new mainline taps for service transfer installations shall be located within onefoot of where the existing service line crosses the new mainline or the shortest distance to intercept the existing service line. C. All new mainline taps for service renewal installations shall be located on the new mainline perpendicular to the meter or the shortest distance to intercept the existing meter. D. All services are to be copper runs completely. Typical service transfer shall be used when existing service piping is copper. If service piping is any material other than copper, replace the service piping complete to the meter box. Service piping shall be installed, as shown on Drawings, as required by the Specification or directed by the Engineer. E. Service piping shall be installed in a single piece of pipe from meter to main whenever possible. Joints on the service piping shall be minimized. F. All existing copper services shall be insulated at the meter, as shown on the plans, unless already insulated. G. When installing services on PVC pipe, tapping shall be done with an approved cutting tool. The tool shall be an internal tooth shell cutter or other designed cutter, which will retain the coupon and accommodate the heavy wall of PVC class water pipe. H. Service connections shown as connect service by hot tap on the Drawings shall be made by Contractor. Contractor shall provide approved tapping machine, demonstrate that the machine is disinfected with all necessary equipment to complete the hot tap connection. The machine shall be an internal tooth shell cutter or other designed cutter, which will retain the coupon. I. Particular care shall be taken in the backfilling and compaction of the area around the taps to the main. Hand tamping will be required rather than equipment tamping or rolling. J. Where the water service must cross the sewer line, the bottom of the water service, within 10 feet of the point of crossing, shall be at least 12 inches above the top of the sewer. K. Prior to installing a service lateral using a punch tool trenchless technique, the Contractor shall locate and ascertain the depth of all conflicting utilities. The Contractor shall clearly mark the depth and location of conflicting utilities. For Section

145 sanitary sewer and storm drain facilities, the Contractor may utilize exiting evidence of depth, such as manholes. For all other utilities, the Contractor shall use a pipe locator with a depth indicator. The Contractor shall be responsible for installing the service without damaging any other utilities. L. The Contractor shall use care to not damage any concrete curb, gutter and sidewalk in the installation of service piping and meter connections. Any damage shall be repaired or replaced, to the local jurisdiction s satisfaction at the contractor s cost PLUGGING OF ENDS OF PIPE At the end of each day s work or when pipe is not being installed, the end or ends of the pipe shall be securely sealed in such a manner as to prevent the entrance of any foreign material including water into the interior of the pipe FABRICATION OF FIELD MITERS A. Steel Pipe 1. Unless otherwise specified, welded fittings shall be used at points of change of direction on steel pipe. Welding of fittings shall conform to the requirements of AWS B When fabricated fittings are permitted for alignment changes, the Contractor will be required to cut, fit and reweld the pipe to form the required bend. Bends shall be made with one miter for each 22-1/2 degrees or fraction thereof. In general, miters are to be formed by cutting a straight length of pipe at an angle equal to one-half the total angle required and then rotating one section 180o and rewelding so that the total desired miter is obtained. Trimming and fitting that may be required to prepare the two pieces of pipe for rewelding is to be done at the expense of the Contractor. Miters may be cut by hand or machine at the option of the Contractor. All wrap, welding, repair to interior coating and exterior coating, shall be done in accordance with the requirements previously set forth for pipe jointing, coating and lining INSTALLATION OF INSULATING JOINTS, TEST STATIONS, AND BONDING JUMPERS FOR JOINTS A. As indicated on the Drawings, insulating joints shall be installed to electrically isolate sections of the pipeline. Insulating joints shall consist of plastic sleeves, washers and gaskets in flanged joints or sections of non-metallic pipe. B. Care shall be exercised to correctly install all parts in flange insulating kits, to prevent reducing the dielectric properties by bridging across the interior of the Section

146 pipeline with cement mortar lining, and to properly coat the exterior metal after fabrication and testing. C. The Contractor shall give notification at least one day in advance so that the Engineer can be on hand to test insulating joints during and after fabrication and check test lead connections before protective coatings are applied. D. The Contractor shall be responsible for the electrical continuity of all pipe and fittings, and the discontinuity of insulating joints. In the event that insulating joints become shorted or test lead wires or bonding jumpers become disconnected during work or within the maintenance bond period, it will be the responsibility of the Contractor to make all repairs at his expense. Loss of the insulating qualities or broken wires from any cause (other than defective materials furnished by the District) shall be repaired at the Contractor s expense, regardless of any prior approval given by the Engineer. Electrical shorts or discontinuities shall be determined by voltage and current measurements in conjunction with audio frequency signals or other means, and shall be considered detrimental when of a magnitude to jeopardize the application of cathodic protection as established by the Standards. E. See also Section Cathodic Protection for further requirements INSTALLATION OF THRUST BLOCKS All pipe fittings which are not otherwise adequately restrained shall be blocked against the undisturbed soil on the sides of the trench by means of concrete thrust blocks or by gravity anchor blocks in the case of vertical bends, in accordance with the typical details shown on the drawings. It shall be the Contractor s responsibility to adequately restrain all permanent and temporary fittings at all times DIG-IN PROTECTION WARNING TAPE Dig-in protection warning tape shall be installed in accordance with Section when pipe is installed in unpaved areas HYDROSTATIC PRESSURE AND LEAKAGE TESTING A. GENERAL 1. Hydrostatic tests shall be performed on all pipe installed in this project. Contractor shall furnish all equipment, material, personnel, and supplies to perform the tests and shall make all taps and other necessary temporary connections. The Contractor must use an approved, properly functioning, double-check valve backflow prevention assembly when loading the line for testing. Test pressure shall be measured at the lowest point on the line unless specifically noted otherwise. Hydrostatic tests shall be performed on all piping at a time agreed upon and in the presence of the Engineer. Section

147 2. The hydrostatic test for buried piping shall be made after all pipe is installed and backfilled. However, the Contractor may conduct preliminary tests prior to backfill. If the Contractor elects to conduct preliminary tests, he shall provide any necessary temporary thrust restraint. In no case will final testing be done prior to acceptance of backfill compaction. 3. The hydrostatic test for encased piping shall be made after all pipe is installed and encased. However, the Contractor may conduct preliminary tests prior to encasement. If the Contractor elects to conduct preliminary tests, he shall provide any necessary temporary thrust restraint. 4. Whenever curb cocks are to be installed, they shall be installed to final grade and included in the facilities tested. 5. All supports, anchors, and blocks shall be installed prior to the hydrostatic test. No temporary supports or blocking shall be installed for final test. 6. It shall be the responsibility of the Contractor to block off or remove equipment (valves, gauges, etc.) which are not designed to withstand the full test pressure. 7. The Contractor shall provide pipe taps, nozzles and connections as necessary in piping to permit testing including valves to isolate the new system, filling the lines, purging air, draining the lines and disposal of water, as is necessary. These openings shall be plugged in a manner favorably reviewed by the Engineer after use. The Contractor shall provide all required temporary bulkheads and thrust restraints. 8. If leakage exceeds the allowable for gasketed joint pipe, the installation shall be repaired or replaced and leakage tests shall be repeated as necessary until conformance to the hydrostatic test requirements specified herein have been fulfilled. All visible leaks shall be repaired even if the pipeline does not exceed the allowable leakage rate. 9. The Contractor shall submit all test reports to the Engineer and keep records of each piping test, including: a. Description and identification of piping tested. b. Test Pressure c. Date of Test d. Witnessing by Contractor and Engineer e. Test Evaluation Section

148 f. Remarks, including such items as leaks (type, location) and repairs made on leaks 10. When not shown on the Drawings, the Contractor shall install valved outlets at high points on piping to permit venting of air. Valves shall be capped after testing is completed. B. TEST PROCEDURE 1. Schedule. As soon as is practicable after any section of pipeline has been completed, including acceptance of backfill compaction results, and when directed by the Engineer, that section of pipeline shall be subjected to a hydrostatic pressure and leakage test. 2. Initial Filling. After the pipeline or section thereof has been filled, it shall be allowed to stand under a slight pressure for at least 24 hours to allow the mortar lining to absorb what water it will and to allow the escape of air from any air pockets. 3. Test Section. The Contractor shall not test a section of pipeline greater than 1000 feet in length nor an elevation difference of greater than 100 feet, without the Engineer s approval. 4. Test Pressure. Unless otherwise specified, the test pressure shall be 200 pounds per square inch or fifty (50) percent above static line pressure at the lowest point of the test section, whichever is greater. 5. Duration and Conditions of Test. After the initial hydrostatic pressure is applied to the section to be tested, it must remain unaided within 10 P.S.I. of the initial pressure for a duration of two hours for distribution pipelines and four hours for transmission pipelines 24-inches in diameter and larger. If the pressure drops below this limit, the section being tested will be considered defective. The Contractor shall determine the cause of failure and make necessary repairs. The test shall be repeated until the Engineer is satisfied that leakage requirements have been met and the line is actually ready for use. The Engineer may require that valves be closed to isolate sections of piping for testing as individual mains. The Contractor shall not be entitled to additional payment for any work associated with additional testing required by the Engineer as a result of failed tests, or work required to isolate failure locations. 6. Leakage Measurement. After the pressure test and if any pressure drop has occurred, the Contractor shall determine the leakage volume. This shall be achieved by injecting water from a calibrated container into the pipeline via a pressure pump until the pressure again reaches the initial applied pressure. The amount of water injected is the leakage volume. Section

149 7. Welded Steel Pipe Leakage. There shall be no leakage allowed for welded steel pipe installations. 8. Rubber-Gasket Joint Pipe Leakage. If the Contractor cannot determine the point(s) of leakage by thorough physical examination performed to the satisfaction of the Engineer, the pipeline will be considered acceptable if the amount of leakage is less than that determined by the following formula: 3.16 FLUSHING AND DISINFECTION A. FLUSHING L = ND (T)1/ where L = leakage in gallons per hour N = total number of gaskets D = nominal pipe diameter in inches T = test pressure in psi 1. After successful pressure and leakage testing, the Contractor shall thoroughly flush the pipeline and appurtenances prior to chlorine application. The flushing velocity shall be a minimum of 3 feet per second unless the Engineer determines that field conditions will not permit the required flow to be discharged to waste. The flow rates required to produce the minimum acceptable velocity are shown below. Section

150 REQUIRED OPENINGS TO FLUSH PIPELINES* (40-psi Drop in System Pressure) Flow Required Temporary Pipe to Produce Plug/Tap Hydrant Nozzles Size 3.0 fps Size Outlet Size (Inches) Velocity (gpm) (Inches) Number (Inches) / / / /2 12 1, /2 14 1, /2 16 1, /2 18 2, /2 *With 40 psi drop in system pressure, a 2-1/2 inch hydrant outlet nozzle will discharge approximately 1,000 gpm, and a 4-1/2 inch hydrant nozzle will discharge approximately 2,500 gpm. 2. Flushing shall be accomplished through an opening furthest from the point of entry of the flushing flow. The entire system however, shall be flushed including hydrants, laterals and blowoffs. The Contractor is responsible to ensure flushing operations comply with the NPDES Permit for Drinking Water System Discharges and shall be required to provide for and document de-chlorination of flushing water as it is being discharged. 3. Flushing shall be continued as long as the discharged water appears turbid to the Engineer. Flushing shall allow at least two exchanges of the volume of the water in the pipeline unless otherwise determined by the Engineer. 4. If necessary, the Contractor shall provide temporary piping to divert flushing water to natural drainage in order to prevent erosion or nuisance. B. DISINFECTION 1. Submittals: A. The Contractor shall provide the District a list of all chemicals that will be used for the pipeline disinfection process along with Safety Data Sheets (SDS) for approval, prior to scheduling pipeline disinfection. 2. In general, the following constitutes the District s requirements for disinfection: Section

151 a. After flushing, the Contractor shall disinfect the newly constructed facilities in accordance with the AWWA Standard C (or most recent version) Continuous feed method. The Contractor shall provide to the Engineer a plan detailing the lengths, diameters of the proposed pipeline disinfection sections prior to scheduling disinfection. b. The Contractor or the Contractors disinfection sub-contractor shall have a minimum of 5 years of experience providing pipeline disinfection services for water agencies or municipalities. Please supply three references that can be contacted to verify performance. c. The Contractor shall furnish all labor and material to complete the disinfection operation. All equipment required to disinfect the pipeline including, hoses, flushing standpipes, backflow devices, flow metering devices, diffusers shall be in proper working condition and shall be ANSI/NSF 61 compliant. d. The continuous-feed method consists of filling the main to remove the air pockets and then dosing chlorine continuously to obtain a concentration of not less than 25 mg/l free chlorine throughout the main. The contractor shall take and document a chlorine residual measurement at the end of all branches and in at least 3 locations in the main section of the pipeline to verify that the entire pipeline has the desired level of chlorine. The chlorinated water in all portions of the main shall have a residual of not less than 10 mg/l of free chlorine after the 24-hr period. All supporting documentation and calculations used by the Contractor to determine the required chlorine, water, total solution, injection and flow rate shall be provided to the District prior to starting the disinfection process to verify disinfection time and final chlorine concentration. e. All hydrants, service piping or other appurtenances, are subject to controlled flow insuring introduction of chlorine solution into all sections of the new facility. f. A copy of the discharge permit shall be provided to the District and a copy shall be available onsite during the flushing process. g. Following the chlorine contact period flush the highly chlorinated water from the main fittings, valves and branches until the chlorine residual that is measured is no higher than that generally prevailing in the distribution system or that is acceptable for domestic use. The highly chlorinated water shall be de-chlorinated and meet the Section

152 Regional Water Quality Control Board s requirements for planned and unplanned discharge of potable water. h. The Contractor shall sample the pipeline post disinfection and measure the chlorine residual 24 hours after disinfection to ensure that not less than 10mg/L and report back to the District. If chlorine residual is found to be less than 10mg/L, the disinfection shall be considered unacceptable and the pipeline section shall be redisinfected until the 10mg/L residual it measured. i. Bacteriological sampling and testing shall be requested by the Contractor and shall be performed by District Water Quality Field Technicians. Samples shall only be collected Monday-Thursday. j. Two consecutive passing tests, with sampling separated by 24 hours, are required. District staff will determine if the disinfection process has been successful. In the event that it has failed, the disinfection process shall be repeated by the contractor at no cost to the District. k. The Contractor shall be required to maintain a minimum of 20 psi line pressure in the disinfected pipe throughout the bacteriological sampling process. The Contractor shall also provide ¾ inch nonthreaded hose bibs at each sampling location a minimum of 12- inches above grade. l. Typical time necessary for passing the bacterial testing process is a minimum five (5) business days; that is, 24 hour chlorination 24 hour chlorine contact time 24 hour flushing and sampling, 24 hour second sampling, 24 hour results. The Contractor shall schedule his work with this consideration. m. The chlorinating and flushing shall be done through an approved, properly functioning, double check valve backflow prevention assembly to prevent backflow. 3. The chlorinated water shall remain in the pipe for at least 24 hours unless otherwise directed by the Engineer. At no time shall the chlorinated water be allowed to flow into an existing water system. 4. While analysis of the samples is being conducted, the pipeline shall remain isolated and a positive pressure must be maintained in the new line until the time of actual connection to the existing system. In order to insure this, the Contractor shall, at his expense, provide and install a temporary pressure gauge and/or temporary piping with an approved, properly functioning, double check valve backflow prevention assembly or approved backflow prevention device as directed by the Engineer. This gauge shall Section

153 be periodically checked, and if positive pressure is not maintained, additional bacteriological testing may be required. 5. After it is determined that the pipeline is free from bacteriological contamination, all temporary piping shall be dismantled and the connections to the existing pipeline shall be made MAKING CONNECTIONS TO EXISTING SYSTEM A. Connections to the existing system shall be made by the Contractor at the points indicated on the Drawings or as directed by the Engineer. It shall be the Contractor s responsibility to adequately restrain all fittings at all times. B. The Contractor shall be responsible for maintaining service in the existing piping system until that piping is abandoned. Temporary fittings and thrust blocks shall be installed on the existing piping wherever the pipe is cut and remains in temporary service but is not connected to the new system. C. The Contractor shall be responsible for dewatering the tie-in area of all waters released from the piping as a result of the cutting of the main for making the connection. D. The Contractor is warned that the existing piping may be other than standard size. Prior to scheduling a connection, he shall expose the existing pipelines at the point of connection to verify the actual pipe size and required couplings and fittings for connections. E. When connecting to the rough barrel of an Asbestos Cement (AC) Pipe, the Contractor shall measure the outside diameter of the rough barrel on the existing AC. The Contractor shall report the dimension to the Engineer prior to pressure testing new mains or scheduling a shutdown for connection to the existing piping. The Contractor shall conform to all regulatory requirements, including applicable requirements of Federal OSHA Title 29 and California State OSHA, for the handling of AC pipe. F. Connections shown as hot taps on the Drawings shall be made with the assistance of District forces. Upon contractor completion of the tapping valve installation, the contractor shall prepare the site for the District installation of the hot tap. The District shall provide the tapping machine and one technician. The contractor shall provide the necessary air compressor, lift equipment and all other assistance required. G. Since connections will result in temporary interruption of service in the area, it will be essential for the District to give at least two working days of advance notice to the affected consumers. Therefore, the Contractor shall notify the Engineer a minimum of four working days prior to making any connection that will necessitate shutdown of any water main currently in operation. The Contractor Section

154 shall coordinate his scheduling of connections with District activities. In addition, the Contractor may be required to supply by-pass connections to maintain service to consumers as directed by the Engineer. The Contractor shall receive no additional compensation for such bypasses. H. Connections shall only be made on Tuesday through Thursday and only if weather permits as determined by the Engineer. For customer service considerations, the District elects not to notify consumers on Friday for a shutdown of water service on the following Monday. Therefore, Monday notifications mean that the first opportunity for connection or shutdown in a week is Tuesday. I. The contractor shall plan his work in consideration of the time constraints inherent in the testing and notification process described above. J. When requested by the Engineer, the Contractor shall provide such assistance as may be required in notifying consumers of water service interruption ABANDONING EXISTING PIPELINES A. All piping to be abandoned, as shown on the plans, is abandoned only when the pipe has been taken out of service, physically disconnected from the active water system, and has been sealed by the Contractor. B. The contractor shall seal all cut ends of the existing piping that are not connected to the new system by either installing temporary fittings on the existing piping or by plugging the cut end with concrete extending two pipe diameters into the pipe. After the concrete placement, the pipe end shall be blocked with a 2-inch thick redwood block. END OF SECTION Section

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156 PART 1 - GENERAL 1.1 DESCRIPTION SECTION MINOR CONCRETE This section includes plain and reinforced concrete for pipelines including anchors, encasements, supports, thrust blocks, and other pipeline appurtenances, concrete curbs, gutters, sidewalks and roadway pavement. 1.2 SUBMITTALS The Contractor shall, unless otherwise directed by the Engineer, provide the following: A. A mix design in writing for review at least 15 days before placing of any concrete. B. A certificate that the proposed cement complies with ASTM C150, and the proposed aggregates comply with ASTM C33 and these specifications. C. For Ready Mix Concrete: Delivery tickets or weighmasters certificates per ASTM C94, including date and time the load left the batch plant, time mixing cycle started, weights of cement and each size aggregate, amount of water added at the plant. In addition, the Contractor shall indicate in writing on the tag the amount of water added on the job. PART 2 - PRODUCTS 2.1 MATERIALS FOR PIPELINE CONCRETE A. Cement. Cement shall conform to ASTM C150, Type II. The maximum percent alkalies shall not exceed 0.6%. B. Aggregates. Aggregates shall comply with ASTM C33 and shall be free from any substances that will react with the cement alkalies. C. Water. Water to be used in concrete shall be clean and free from objectionable quantities of organic matter, alkali, salts, and other impurities which might reduce the strength, durability, or otherwise adversely affect the quality of the concrete. D. Concrete Mix Design. 1. The design shall conform to ASTM C94, except as modified by these specifications. 2. Fly ash shall not be used in the mix. Section

157 3. The maximum water-cement ratio for Class A concrete shall be 0.44 by weight or less. 4. The classes of concrete used shall be as described in the following table: 28-Day Minimum Compressive Cement Strength Content Class Type of Work (in psi) (in lbs per CY) A Concrete for anchors 3, roadway, sidewalk and miscellaneous 5. Slump test shall be in accordance with ASTM C143 and shall range between 4 to 6-inches. Engineer approval shall be required prior to placing concrete of a lower slump (slump less than 4 inches). If approved by the Engineer, the concrete shall be properly placed and consolidated. Approval by the Engineer does not relieve the Contractor of the minimum 28 day compressive strength requirement. 6. Minimum coarse aggregate cleanness value shall be 75. Minimum fine aggregate sand equivalent shall be Maximum aggregate size shall be 1-inch maximum. 8. The combined aggregate grading shall be as shown in the following table: Combined Aggregate Gradation Sieve Sizes Section Percent Passing / / / / No No No No No No No

158 E. Expansion Joints. Unless otherwise specified in the Drawings, Specifications, or by the Engineer, expansion joints shall consist of closed cell neoprene sponge rubber conforming to ASTM Standard TT-S-00230C, Type 2, Class A as manufactured by Velkem 116 or approved equal. F. Dowels. Unless otherwise specified in the Drawings, Specifications, Encroachment Permit, or by the Engineer, dowels shall consist of one foot long #4 size deformed steel reinforcing bar (rebar). PART 3 - EXECUTION 3.1 WORKABILITY A. Concrete shall be of such consistency and composition that it can be worked readily into the forms without excessive spading and without permitting the materials to segregate or free water to collect on the surface. B. The proportions shall be adjusted to secure a plastic, cohesive mixture, and one which is within the specified slump range of 4 to 6-inches. C. To avoid unnecessary changes in consistency, the aggregate shall be obtained from a source with uniform quality, moisture content, and grading. Materials shall be handled in such a manner that variations in moisture content will not interfere with production of concrete of the specified degree of uniformity and slump. 3.2 PLACEMENT AGAINST EXISTING CONCRETE A. Where concrete is to be cast against old concrete (any concrete which is greater than 60 days of age), the surface of the old concrete shall be thoroughly cleaned and roughed prior to the application of an epoxy bonding agent. B. An epoxy adhesive bonding agent shall be applied to the old surfaces according to the manufacturer s written recommendations. C. Dowels shall be inserted into existing concrete in accordance with local Town, City or County specifications, as specified in the Drawings, Specifications, Encroachment Permit, or by the Engineer. 3.3 EXPANSION JOINTS A. Expansion joints shall be installed in locations to match the placement of existing expansion joints and in accordance with local Town, City, or County specifications, as specified in the Drawings, Specifications, Encroachment Permit or by the Engineer. Section

159 3.4 WEAKENED PLANE JOINTS A. Weakened plane joints shall be installed in locations to match the placement of existing weakened plane joints and in accordance with local Town, City, and County specifications. 3.5 CONCRETE TESTS The District may perform compressive strength tests on the concrete in accordance with ASTM C31, C39 and C143. To accommodate the tests, the Contractor shall, unless otherwise directed by the Engineer, provide the following: A. Four concrete test cylinders shall be molded and cured from each 100 cubic yards, or fraction thereof, of each class of concrete placed in any one day. This shall be in accordance with ASTM C31. B. The Contractor shall prepare test cylinders in accordance with ASTM C39. Two cylinders shall be tested at 28 days for acceptance, and one at seven (7) for information. The test results shall be the average of the strengths of the two cylinders tested at 28 days. If one cylinder in a test manifests evidence of improper sampling, molding, or testing, other than low strength, it shall be discarded and the spare cylinder shall be used for the test result. Should two cylinders in a test show any of the above defects, the entire test shall be discarded. C. The slump of the concrete shall be determined using ASTM C143 for each compressive strength test sample and as required to establish consistency. 3.6 SITE-MIXED CONCRETE In regard to site mixed concrete, the Contractor shall conform to the following: A. The concrete shall conform to ACI 304 as modified by these specifications. B. A batch-type mixer shall be used which is capable of combining the aggregates, cement, and water within the specified time into a thoroughly mixed and uniform mass and discharging the mixture segregation. C. Supporting equipment shall be used that can accurately proportion the cement, the coarse and fine aggregates, the admixtures, and the water which enters the mixing drum. The cement and aggregate shall be proportioned by weight. D. Each entire batch shall be discharged before recharging. The volume of the mixed materials per batch shall not exceed the manufacturer s rated capacity of the mixer. Section

160 3.7 READY-MIXED CONCRETE A. Central-mixed concrete shall be provided which conforms to ASTM C94 as modified by these specifications or Five Star Concrete Mix. B. Concrete shall be placed within 90 minutes or before 250 revolutions of the drum or blades, whichever occurs first unless admixtures have been used to retard the set time. If admixtures have been used, the time limit is 120 minutes or 300 revolutions of the drum or blades, whichever occurs first. Concrete exceeding the maximum allowable slump of 6 inches shall not be allowed for use on the project and shall be rejected. C. Truck-transported, dry-batched concrete or mix shall be used on the jobsite when haul time is excessive. Concrete shall not be retempered. 3.8 PLACING CONCRETE A. Placement shall conform to ACI 304 as modified by these specifications. B. The District shall be notified of intention to place concrete in any portion of the work. This notification shall be two days in advance of the operation as the Engineer deems necessary for him to observe the preparations at the location. All anchors, inserts and other embedded items shall be in place before the Contractor s notification of readiness is given to the Engineer. C. Concrete shall not be placed until all water entering the space to be filled with concrete has been properly cut off or has been diverted by pipes or other means, clear of the work. Concrete shall not be placed underwater, and still water shall not be allowed to rise on any concrete until the concrete has attained its initial set. Water flow shall not be permitted over the surface of any concrete in such manner and at such velocity as will injure the surface finish of the concrete. Concrete shall not be placed during precipitation. Concrete placed immediately before rain shall be protected to prevent rainwater from coming in contact with it. Sufficient protective covering shall be kept on hand at all times for this purpose. 3.9 HOT WEATHER REQUIREMENTS A. During hot weather, proper attention shall be given to ingredients, production methods, handling, placing, protection, and curing to prevent excessive concrete temperatures or water evaporation in accordance with ACI 305 and the following. B. When the weather is such that the temperature of the concrete as placed would exceed 80 F, ice or other effective means of cooling the concrete shall be used during mixing and transportation so that the temperature of the concrete as placed will not exceed 80 F. Any ice used to cool the concrete must be melted before the concrete is discharged from the mixer. Section

161 C. Precautions shall be taken when placing concrete during hot, dry weather to eliminate early setting of concrete. This includes protection of reinforcing from direct sunlight to prevent heating of reinforcing, placing concrete during cooler hours of the day, and the proper and timely application of specified curing methods. D. There will be no additional reimbursement to the Contractor for costs incurred for placing concrete in hot weather BONDING TO OLD CONCRETE The contact surfaces shall be coated with epoxy bonding compound. The method of preparation and application of the bonding compound shall conform to the manufacturer s printed instructions and recommendations for specific application for this project FINISH Concrete for curbs, gutters, sidewalks, roadway pavement, and other surface improvements shall be finished to match existing adjacent concrete, and in accordance with local Town, City, or County specifications, as specified in the Drawings, Specifications, Encroachment Permit or by the Engineer. END OF SECTION Section

162 PART 1 - GENERAL 1.1 DESCRIPTION SECTION CONTROL DENSITY FILL This section includes specifications for testing, materials, and installation of control density fill (CDF), for pipeline and pipeline appurtenances, at the required lines and grades, as shown on the drawings. Excavation shall include removal and disposal of existing paving, soil, rocks and concrete. 1.2 RELATED SECTIONS A. Section EARTHWORK B. Section ASPHALTIC CONCRETE PAVING C. Section DISTRIBUTION SYSTEM PIPING 1.3 SUBMITTALS 1.4 TESTS A. Contractor shall provide the following Material Submittals in accordance with Section CONSTRUCTION SUBMITTALS 1. A written mix design for review at least 15 days prior to the placement of any control density fill. 2. A certificate that the proposed cement complies with ASTM C-150, Type II, and the proposed aggregates comply with ASTM C-33 and these specifications. 3. Delivery tickets or weighmasters certificates per ASTM C-94, including mix number, total batched yardage, truck number, delivery address, time the material was batched, batch plant location, amount of water added at the plant and the job site. The District shall take samples of the CDF. These samples will consist of materials for slump testing and standard compression test cylinders. Section

163 Slump testing shall be done on site prior to CDF placement. Product delivered that cannot pass the slump requirement shall not be allowed. Compression testing shall be sent to the District s chosen materials testing laboratory Samples shall be tested by the District and all costs for testing shall be borne by the District. The test cylinders must obtain the required strength as provided in the Specifications. In the event that test cylinder strength is either above or below the 28-day test limits, as required by paragraph 2.1.A.1 of this section, the Contractor shall be required to remove and replace all pipe and CDF to the lateral limits of the pipe and CDF placed on the day the representative sample was taken and at the sole expense of the Contractor. PART 2 - PRODUCTS 2.1 CONTROL DENSITY FILL (CDF) A. GENERAL Non-structural control density fill (CDF) shall meet the following: 1. CDF shall be hand excavatable with unconfined compressive 28-day strengths from 50 psi to a maximum of 150 psi. 2. CDF shall be flowable to surround the pipe and self-leveling within the trench. CDF shall have a maximum slump of 5 inches in order to control set time. 3. CDF shall have a cement content of 25 to 40 lbs. per cubic yard and a total cementitious content (including cement and flyash) of 200 to 250 lbs. per cubic yard. 4. CDF shall have a maximum aggregate size of 1/2" not to exceed 40% of the total aggregate content. B. CEMENT Cement shall conform to ASTM C-150, Type II. The maximum percent alkalies shall not exceed 0.6%. C. AGRREGATES Aggregates shall comply with ASTM C-33 and shall be free from any substances that will react with the cement alkalizes. Section

164 D. FLY-ASH Flyash shall conform to ASTM C 618 for Class F Pozzolans as modified herewith, and a loss on ignition (LOI) not to exceed 4%. E. WATER Water to be used in concrete shall be clean and free from objectionable quantities of organic matter, alkali, salts, and other impurities, which might reduce the strength, durability, or otherwise adversely affect the quality of the CDF. F. AIR ENTRAINMENT PART 3 - EXECUTION 3.1 CDF TESTING Air entraining agent shall conform to ASTM C-260. Entrained air content shall be a minimum of 8.0%. The actual entrained air content shall be established for each particular job with the materials and aggregates to be used to meet the placing and unit weight requirements. Entrained air content may be as high as 20% for fluidity requirements. Contractor shall assist the District to sample and test each truck of CDF for slump prior to placement. The CDF shall not be placed if the slump exceeds the specified limit. Compression test cylinders from each truckload during placement shall be collected. 3.2 PIPE SUPPORT AND PLACEMENT OF CDF Contractor shall place sandbags to support the pipe prior to installing pipe. A three-inch clearance between the pipe and bottom of the trench shall be achieved, prior to installing CDF. Sand shall be placed around corporation cocks for services to allow for installation of service piping. The pipe shall not be allowed to float. A vibrator shall be at the job site to consolidate CDF as directed by Engineer. 3.3 CURING AND SURFACE RESTORATION As allowed by the contract documents and directed by the Engineer, steel plates shall be placed over the trench to allow for traffic during the CDF curing period. The curing period shall be that time necessary for the CDF to support traffic on it without deformation of the CDF. Typically this means that plates must be in place overnight. Plates shall be tack welded each to the next. All abrupt edges shall be covered with cutback. Section

165 If the CDF is not placed to the surface, temporary pavement shall be placed after the CDF has cured. Temporary surfaces shall be placed and maintained in accordance with Section CDF shall be removed as necessary to place the finish road asphalt section. END OF SECTION Section

166 PART 1 - GENERAL 1.1 DESCRIPTION SECTION FIELD APPLIED TAPE COATING SYSTEMS This specification covers tape systems for corrosion protection for metal pipe, tubing, valves, tie rods, fittings, and other metal surfaces in buried service. This includes protection for new unprotected metal surfaces, transition from new unprotected to existing protected surfaces, and repairs to damaged protective systems. The system shall be specifically designed to provide permanent protection from corrosion for metal piping and shall be suitable for application over coal tar, asphalt, polyethylene and epoxy surfaces. It shall also be suitable for atmospheric exposure without thermal blistering or ultraviolet degradation. 1.2 RELATED SECTIONS Section CONSTRUCTION SUBMITTALS Section EARTHWORK Section DISTRIBUTION PIPING SYSTEM PART 2 - PRODUCTS Tape products described in this section will be provided by the District. PART 3 - EXECUTION 3.1 GENERAL All metal pipe, tubing, fittings, appurtenances, tie rods and other metal surfaces used for buried service shall be cleaned of all dirt, moisture, oil or other contamination in preparation for tape wrapping. 3.2 SMALL DIAMETER PIPE AND FITTINGS Small diameter pipe (less than 2 in diameter) and miscellaneous small diameter surfaces shall be wrapped with PVC TAPE. Metal surfaces shall be cleaned to bright metal, free of contamination and moisture. PVC tape shall be spirally applied using two-inch wide tape with a minimum of one-half inch overlap. Sufficient tension shall be used so that there are no wrinkles. Section

167 3.3 LARGE DIAMETER PIPE AND FITTINGS All large diameter piping (2 and above) shall be tape wrapped using a MULTIPOLYMER 30 MIL TAPE SYSTEM. The surface shall be circumferentially wrapped with enough tension to stretch the tape. The tape shall be overlapped at least 25%. No wrinkles or other voids will be permitted. 3.4 REPAIRS TO DAMAGED SHOP APPLIED COATINGS Steel pipe surfaces including pipe joints, damaged shop applied pipe coating, hydrant buries, valves and other fittings with less than 20 mils thickness shall be cleaned of all dirt, moisture, oil or other contamination and primed and tape wrapped using a MULTIPOLYMER 30 MIL TAPE SYSTEM. 3.5 WORKMANSHIP Surface preparation and application of primer and tape coatings shall be done in accordance with the manufacturer s recommendation. 3.6 INSPECTION All field-applied coating shall be inspected and tested before backfilling. END OF SECTION Section

168 PART 1 - GENERAL 1.1 SCOPE SECTION ENVIRONMENTAL PROTECTION A. The requirements of Division 1 form a part of this section. B. During the progress of the work, keep the premises occupied in a neat and clean condition and protect the environment both on site and off site, throughout and upon completion of the construction project. 1.2 SUBMITTALS Contractor shall develop an Environmental Protection Plan in detail and submit to the Engineer within seven (7) days from the date of the Notice to Proceed. Distribute the plan to all employees and to all subcontractors and their employees. The Environmental Protection Plan shall include, but not be limited to, the following items: A. Copies of required permits. B. Proposed sanitary landfill site. C. Other proposed disposal sites. D. Copies of any agreements with public or private landowners regarding equipment, materials storage, borrow sites, fill sites, or disposal sites. Any such agreement made by the Contractor shall be invalid if its execution causes violation of local or regional grading or land use regulations. E. Proposed project site winterization plan. 1.3 ENVIRONMENTAL REQUIREMENTS All operations shall comply with all federal, state and local regulations pertaining to water, air, solid waste and noise pollution. 1.4 DEFINITIONS Sediment - Solid Waste - Soil and other debris that have been eroded and transported by runoff water. Rubbish, debris, garbage and other discarded solid materials resulting from construction activities, including a variety of Section

169 Chemical Waste - Sanitary Wastes- Sewage - Garbage - Hazardous Mat'ls - PART 2 - PRODUCTS (None) PART 3 - EXECUTION 3.1 PROTECTION OF NATURAL RESOURCES A. GENERAL combustible and non-combustible wastes, such as ashes, waste materials that result from construction or maintenance and repair work, leaves and tree trimmings. Includes petroleum products, bituminous materials, salts, acids, alkalies, herbicides, pesticides, disinfectants, organic chemicals and inorganic wastes. Some of the above may be classified as "hazardous." That which is considered as domestic sanitary sewage. Refuse and scraps resulting from preparation, cooking, dispensing and consumption of food. As defined by applicable laws and regulations. Undisclosed hazardous material contamination, if encountered will constitute a changed site condition. The District may retain a separate contractor to dispose of undisclosed hazardous material encountered. It is intended that the natural resources within the project boundaries and outside the limits of permanent work performed under this Contract be preserved in their existing condition or be restored to an equivalent or improved condition upon completion of the work. Confine construction activities to areas defined by the public roads, easements, and work area limits shown on the Drawings. Return construction areas to their pre-construction elevations except where surface elevations are otherwise noted to be changed. Maintain natural drainage patterns. Conduct construction activities such that ponding of stagnant water conducive to mosquito breeding habitat will not occur at any time. B. LAND RESOURCES 1. Contractor Responsibility Section

170 Do not remove, cut, deface, injure or destroy trees, grapevines or shrubs outside the work area limits. Do not remove, deface, injure or destroy trees within the work area without permission from the Engineer. Such improvements shall be removed and replaced, if required, by the Contractor at his own expense. 2. Protection Protect trees that are located near the limits of the Contractor's work areas which may possibly be defaced, bruised or injured or otherwise damaged by the Contractor's operations. No ropes, cables or guys shall be fastened to or attached to any existing nearby trees, grapevines or shrubs for anchorages unless specifically authorized. Where such special emergency use is permitted, the Contractor shall be responsible for any damage resulting from such use. 3. Trimming Trim tree limbs overhanging the line of the work and in danger of being damaged by the Contractor's operations in accordance with recognized standards for such work. Remove other tree limbs under the direction of the Engineer, so that the tree will present a balanced appearance. 4. Treatment of Roots Do not cut roots unnecessarily during excavating or trenching operations. Expose major roots encountered in the course of excavation and do not sever. Wrap them in burlap as a protective measure while exposed. Neatly trim all other roots (one inch in diameter and larger) that are severed in the course of excavation at the edge of the excavation or trench and paint them with a heavy coat of an approved tree seal as directed by the Engineer. 5. Repair or Restoration Repair or replace any trees or other landscape features scarred or damaged by equipment or construction operations as specified below. The repair and/or restoration plan shall be favorably reviewed prior to its initiation. 6. Temporary Construction Obliterate all signs of temporary construction facilities such as haul roads, work areas, structures, foundations of temporary structures, stockpiles of excess or waste materials, or any other vestiges of construction as directed by the Engineer. Level all temporary roads, parking areas and any other areas that have become compacted or shaped. Any unpaved areas where Section

171 C. WATER RESOURCES vehicles are operated shall receive a suitable surface treatment or shall be periodically wetted down to prevent construction operations from producing dust damage and nuisance to persons and property, at no additional cost to the Owner. Keep haul roads clear at all times of any object which creates an unsafe condition. Promptly remove any contaminants or construction material dropped from construction vehicles. Do not drop mud and debris from construction equipment on public streets. Sweep clean turning areas and pavement entrances as necessary. Investigate and comply with all applicable federal, state and local regulations concerning the discharge (directly or indirectly) of pollutants to the underground and natural waters. Perform all work under this Contract in such a manner that any adverse environmental impacts are reduced to a level that is acceptable to the Engineer and regulatory agencies. Refer to Section 02200, EARTHWORK, paragraph on control of water for "dewatering" water disposal requirements. 1. Oily Substances At all times, special measures shall be taken to prevent oily or other hazardous substances from entering the ground, drainage areas or local bodies of water in such quantities as to affect normal use, aesthetics or produce a measurable impact upon the area. Any soil or water which is contaminated with oily substances due to the Contractor's operations shall be disposed of in accordance with applicable regulations. 2. Chlorinated Water Take special measures to prevent chlorinated water from entering the ground or surface waters. Dechlorinate chlorinated water prior to discharge. D. FISH AND WILDLIFE RESOURCES Perform all work and take such steps required to prevent any interference or disturbance to fish and wildlife. The Contractor will not be permitted to alter water flows or otherwise significantly disturb native habitat adjacent to the project area which are critical to fish and wildlife except as may be indicated or specified. E. CULTURAL RESOURCES The project does not pass through any known archaeological sites. However, it is conceivable that unrecorded archaeological sites could be discovered during the construction. In the event that artifacts, human remains, or other cultural Section

172 resources are discovered during subsurface excavations at locations of the work, the Contractor shall protect the discovered items, notify the Engineer, and comply with applicable law. 3.2 NUISANCE ABATEMENT A. NOISE CONTROL 1. Location except as modified in Section Coating Systems Maximum Noise Levels within 1,000 Feet of any Residence, Business, or Other Populated Area: Noise levels for trenchers, pavers, graders and trucks shall not exceed 90 db at 50 feet as measured under the noisiest operating conditions. For all other equipment, noise levels shall not exceed 85 db at 50 feet. 2. Equipment Electrically powered equipment instead of pneumatic or internal combustion powered equipment shall be used, where feasible. Jack hammers shall be equipped with exhaust mufflers and steel muffling sleeves. Air compressors should be of a quiet type such as a "whisperized" compressor. All noise-producing project equipment and vehicles using internal combustion engines (including haul trucks) shall be fitted with mufflers, air-inlet silencers where appropriate, and any other shrouds, shields, or other noise-reducing features. These devices shall be maintained in good operating condition so as to meet or exceed original factory specifications. Mobile or fixed package equipment (e.g., air compressors) shall be equipped with shrouds and noise control features that are readily available for that type of equipment. All mobile or fixed noise-producing equipment used on the project, which is regulated for noise output by a local, state, or federal agency, shall comply with such regulations while in the course of project activities. 3. Operations Keep noisy equipment as far as possible from noise-sensitive site boundaries. Machines should not be left idling. Use electric power in lieu of internal combustion engine power wherever possible. Maintain equipment properly to reduce noise from excessive vibration, faulty mufflers, or other sources. All engines shall have mufflers. Section

173 The use of noise-producing signals, including horns, whistles, alarms, and bells shall be for safety warning purposes only. 4. Scheduling Schedule noisy operations so as to minimize their duration at any given location. 5. Monitoring To determine whether the above noise limits are being met and whether noise barriers are needed, the Contractor shall use a portable sound level meter meeting the requirements of American National Standards Institute Specification S1.4 for Type 2 sound level meters. If non-complying noise levels are found, the Contractor shall be responsible for monitoring and correction of excessive noise levels. B. DUST CONTROL, AIR POLLUTION, AND ODOR CONTROL 1. Unpaved areas where vehicles are operated shall be periodically wetted down or given an equivalent form of treatment, to eliminate dust formation. 2. Store all volatile liquids, including fuels or solvents in closed containers. 3. No open burning of debris, lumber or other scrap will be permitted. 4. Properly maintain equipment to reduce gaseous pollutant emissions. 3.3 CONSTRUCTION STORAGE AREAS A. Store and service equipment at the designated Contractor's storage area where oil wastes shall be collected in containers. Oil wastes shall not be allowed to flow onto the ground or into surface waters. Containers shall be required at the construction site for the disposal of materials such as paint, paint thinner, solvents, motor oil, fuels, resins and other environmentally deleterious substances. No dumping of surplus concrete or grout on the site will be permitted. 3.4 FIRE PREVENTION A. Provide spark arresters on all internal combustion engines. B. Store and handle flammable liquids in accordance with the Flammable and Combustible Liquids Code, NFPA 30. C. Provide fire extinguishers at hazardous locations or operations, such as welding. Section

174 3.5 EROSION AND SEDIMENT TRANSPORT CONTROL A. Discharge construction runoff into small drainages at frequent intervals to avoid buildup of large potentially erosive flows. B. Prevent runoff from flowing over unprotected slopes. C. Keep disturbed areas to the minimum necessary for construction. D. Keep runoff away from disturbed areas during construction. E. Direct flows over vegetated areas prior to discharge into public storm drainage systems. F. Trap sediment before it leaves the site, using such techniques as check dams, sediment ponds, or siltation fences. G. Remove and dispose of all project construction-generated siltation that occurs in offsite retention ponds. H. Confine construction to the dry season, whenever possible. If construction needs to be scheduled for the wet season, ensure that erosion and sediment transport control measures are ready for implementation prior to the onset of the first major storm of the season. I. Stabilize disturbed areas as quickly as possible. 3.6 DISPOSAL OPERATIONS A. SOLID WASTE MANAGEMENT Supply solid waste transfer containers. Daily remove all debris such as spent air filters, oil cartridges, cans, bottles, combustibles and litter. Take care to prevent trash and papers from blowing onto adjacent property. Encourage personnel to use refuse containers. Convey contents to a sanitary landfill. Washing of concrete containers where waste water may reach adjacent property or natural water courses will not be permitted. Remove any excess concrete to the sanitary landfill. B. CHEMICAL WASTE AND HAZARDOUS MATERIALS MANAGEMENT Furnish containers for storage of spent chemicals used during construction operations. Dispose of chemicals and hazardous materials in accordance with applicable regulations. Section

175 C. GARBAGE Store garbage in covered containers, pick up daily and dispose of in a sanitary landfill. D. CLEARING AND GRUBBING Dispose of vegetation, weeds, rubble, and other materials removed by the clearing, stripping and grubbing operations off site at a suitable disposal site in accordance with applicable regulations. E. EXCAVATED MATERIALS 1. Native soil complying with the requirements of Section 02200, EARTHWORK, may be used for backfill, fill and embankments as allowed by that section. 2. Spoil Material: Remove all material which is excavated from the site and dispose of offsite in accordance with applicable regulations disposal site indicated in the Environmental Protection Plan. No additional compensation will be paid to the Contractor for such disposal. Include all such costs in the lump sum prices bid for the project. Remove rubbish and materials immediately following excavation. Rubbish shall consist of all materials not classified as suitable materials or rubble and shall include shrubbery, trees, timber, trash and garbage. 3. Excavated material may be stockpiled offsite for reuse in accordance with the requirements of Section 02200, EARTHWORK. Offsite stockpile locations shall be legally obtained by the Contractor and shall meet all of the applicable regulations and requirements of this Section. No additional compensation will be paid to the Contractor for such stockpiling and reuse of native soil. END OF SECTION Section

176 APPENDIX A

177 Marin Municipal Water District 2019 District Observed Holidays 1. NEW YEARS DAY JANUARY 1 2. MARTIN LUTHER KING S BIRTHDAY JANUARY PRESIDENT S DAY FEBRUARY MEMORIAL DAY MAY INDEPENDENCE DAY JULY 4 6. LABOR DAY SEPTEMBER 2 7. VETERAN S DAY NOVEMBER THANKSGIVING DAY NOVEMBER DAY AFTER THANKSGIVING NOVEMBER CHRISTMAS EVE DAY DECEMBER CHRISTMAS DAY DECEMBER 25

178 Marin Municipal Water District 2020 District Observed Holidays 1. NEW YEARS DAY JANUARY 1 2. MARTIN LUTHER KING S BIRTHDAY JANUARY PRESIDENT S DAY FEBRUARY MEMORIAL DAY MAY INDEPENDENCE DAY JULY 4 6. LABOR DAY SEPTEMBER 7 7. VETERAN S DAY NOVEMBER THANKSGIVING DAY NOVEMBER DAY AFTER THANKSGIVING NOVEMBER CHRISTMAS EVE DAY DECEMBER CHRISTMAS DAY DECEMBER 25

179 APPENDIX B

180 Contract Original Contract Completion Date: Reference EXHIBIT A CHANGE ORDER Page 1 Work executed under this change will be performed and paid for in accordance with the following sections of the Contract Specifications: General Specifications Para 40 Para 42 - Definition of Extra Work - Force Account Increase (Decrease) in REF Description of Changes @ $@ Total Increase (Decrease) in Contract Agreement for Change Order Original Contract Price C.O. - % of Original Contract Price Previous Contract Price Amount of this Change Order Revised Contract Price Total Net Amount of All Change Orders All C.O.s - % of Original Contract Price $@ $@ $@ $@

181 CHANGE ORDER Page 2 of 2 Date@ This change order covers labor, equipment, materials, and associated field overhead and office overhead for work which was not included in the original scope of work, but was required to successfully complete the subject contract. Payment for this change order shall fully compensate the Contractor for all direct and indirect costs related in any way to this work and its effect on other work already under contract. Time extensions shall be administered in accordance with Article 85 of the General Specifications. Accepted By Contractor Approved by Name Date General Manager Date

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