Modification: Modify the paragraph by deleting "wastewater and replace it with brine.

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2 defective land or areas, or (ii) correct such defective Work, materials, supplies or equipment or, if the defective Work, materials, supplies or equipment has been rejected by OWNER, remove it from the Project and replace it with Work, materials, supplies or equipment that is not defective, and (iii) satisfactorily correct or repair or remove and replace any damage to other Work, materials, supplies or equipment, to the work of others or other land or areas resulting therefrom. If CONTRACTOR does not promptly comply with the terms of such instructions, or in an emergency where delay would cause serious risk of loss or damage, OWNER may have the defective Work, materials, supplies or equipment corrected or repaired or may have the rejected Work, materials, supplies or equipment removed and replaced, and all Claims, costs, losses, and damages (including but not limited to all fees and charges of engineers, architects, attorneys, and other professionals and all court or arbitration or other dispute resolution costs) arising out of or relating to such correction or repair or such removal and replacement (including but not limited to all costs of repair or replacement of work of others) will be paid by CONTRACTOR. Delete paragraph B. in its entirety. TECHNICAL SPECIFICATIONS: A1-3 SECTION SUMMARY OF WORK A. Reference Page , Paragraph 1.09 AND Delete Paragraphs 1.09 and 1.10 in their entirety. A1-4 SECTION SPECIAL PROCEDURES A. Reference Page , Paragraph 1.03, B, 4.a. Modification: Modify the paragraph by deleting "wastewater and replace it with brine. B. Reference Page , Paragraph 1.03, B, 4. Add the following paragraphs: d. Re-route of the existing AMUD 6 Waterline (Station to Station ) 1) Maximum time out of operation is 4 hours 2) Lay re-routed 160 LF of new 6 waterline, hydrostatic test per 01666, and then disinfect per prior to taking existing line and connections out of service. 3) Notify affected homeowners 48 hours prior to downtime 4) Coordinate with AMUD inspectors. Notify AMUD a minimum of one week prior to taking the line out of service. Notify AMUD prior to testing and backfilling new pipe. 5) Liquidated damages are established at $100 per hour. e. Miscellaneous Service Connections 1) Maximum time out of operation is 2 hours. 2) Notify affected homeowners or businesses 48 hours prior to downtime. 3) Liquidated damages are established at $100 per hour. A1-5 SECTION SUBMITTALS A. Reference Page , Paragraph 1.09, A. Delete the paragraph in its entirety and replace with the following: Addendum No

3 A. Warranties and guarantees shall meet the requirements of SC-60 and shall be submitted as required by the Contract Documents and submitted with the shop drawings or record data. A1-6 ADD THE FOLLOWING SECTION: CONSTRUCTION SECURITY A1-7 SECTION CONTRACT CLOSEOUT A. Reference Page , Paragraph Delete the first sentence in its entirety and replace with the following: The manufacturer shall warrant the equipment, materials and supplies against any defects in material, performance or workmanship for a period of one (1) year from date of project final acceptance per the Supplementary Conditions, SC-60. B. Reference Page , Paragraph 1.09, B. Delete the paragraph in its entirety and replace with the following: B. The date for the start of warranties, bonds, and service agreements shall be at the time of final acceptance of the project per the Supplementary Conditions, SC- 60. A1-8 SECTION CAST-IN-PLACE CONCRETE A. Reference Page , Paragraph 2.03, d, 1. Add the following: D. Or approved equal B. Reference Page , Paragraph 2.05, C, 2, b. Add the following: 4) Or approved equal C. Reference Page , Paragraph 2.06, A, 1. Add the following: b. Or approved equal A1-9 SECTION PROTECTIVE COATINGS A. Reference Page , Paragraph 2.14, G, 4. Add the following: d. Or approved equal A1-10 SECTION DUCTILE IRON PIPE AND FITTINGS A. Reference Page 15062, Paragraph Addendum No

4 Modification: Modify the paragraph by deleting "manufacturer and replace it with Contractor. A1-11 SECTION GATE VALVES A. Reference Page 15101, Paragraph Modification: Modify the paragraph by deleting "manufacturer and replace it with Contractor. A1-12 SECTION AIR RELEASE AND AIR AND VACUUM VALVES A. Reference Page 15117, Paragraph Modification: Modify the paragraph by deleting "manufacturer and replace it with Contractor. A1-13 SECTION MISCELLANEOUS VALVES A. Reference Page 15136, Paragraph Modification: Modify the paragraph by deleting "manufacturer and replace it with Contractor. DRAWINGS: A1-14 SHEET PL-1, SEQ. 7 A. Reference: Notes Add the following note: A1-15 SHEET PL-3, SEQ Coordinate relocation of 6 Waterline from Station to with Acton Municipal Utility District (AMUD). See sheet DT-1 for pipeline installation detail and sheet DT-4 for fire hydrant installation details. Refer to Specifications for requirements for downtime and coordination. Refer to Specification for disinfection requirements. A. Modification: Modify the note reading 65 LF of 12 Steel Casing Pipe to read 65 LF of 10 Steel Casing Pipe. A1-16 SHEET PL-5, SEQ. 11 A. Addition: A buried telephone line crosses the easement at Station 22+51, approximately 3 deep to serve the metal building outside the easement. Add to plan and profile. A1-17 SHEET PL-7, SEQ. 13 A. Modification: Replace the note End 4 PVC Chlorine Dioxide Line with End 4 Chlorine Dioxide Line. Connect to existing 4 PVC line per AWWA standards. Field verify depth, location, and fittings required for making the connection. A1-18 SHEET DT-5, SEQ. 18 Addendum No

5 A. Modification: Modify the note reading 65 LF of 12 Steel Casing Pipe to read 65 LF of 10 Steel Casing Pipe. B. Note 3 Delete the word Owner and replace with Engineer. C. Note 4 - Delete the note in its entirety and replace with the following: A1-19 SHEET C-1, SEQ Top of 10 casing matches top of 48 steel casing pipe as shown on the profile. A. Addition: The centerline elevation of the connection at Station 1+00 is approximately END OF ADDENDUM NO. 1 Addendum No

6 01560 CONSTRUCTION SECURITY 1.00 GENERAL 1.01 GENERAL A. CONTRACTOR security procedures at the project site during construction shall minimize the potential for property damage, danger to plant personnel, danger to construction personnel, danger to the public and operational problems due to unauthorized entry to and/or activities at the project site. CONTRACTOR shall be responsible for implementing procedures that will provide secure conditions associated with construction activities. B. General security requirements associated with this project are listed below. 1. The project site shall mean to include all portions of the project work area, whether within controlled access areas or along public access areas. 2. Portions of the contract work areas for the SWATS 30 raw waterline construction are controlled access areas. These areas include the raw water pump station and the SWATS water treatment plant. 3. Access to the raw water pump station is controlled by automated entrance gates. These gates are opened by a motor operated controller by entering a code number on a key pad. The CONTRACTOR will be given a code number for the gates that may be furnished only to personnel that have received clearance from the background security checks. Under no circumstances will the CONTACTOR allow the controlled access areas to be left open unattended. The controlled access area must be secured properly prior to leaving the site unattended. 4. Access to the 30 raw waterline and 4 chlorine dioxide pipeline tie-in at the SWATS plant is controlled by fencing around the plant. To access the tie-in area, the fence around this controlled access area may be temporarily removed by the CONTRACTOR and replaced back with temporary fencing during construction. Under no circumstances will the CONTACTOR allow the controlled access areas to be left open unattended. The controlled access area must be secured properly prior to leaving the site unattended. Once the project is completed, permanent gates and fencing must be installed per the plans and specifications. 5. The controlled access areas of the work site shall be fenced throughout the course of the project, with whatever combination of permanent and temporary fencing is required. Temporary fencing shall be 6 foot high chain link with three strands of barb wire equal to existing fencing at the site, except where more secure fencing is called for in this section or on the drawings. 6. All CONTRACTORS and Subcontractors that are expected to be working at the site during this project are required to conduct background checks on employees and issue project identification badges with photos to employees. 7. CONTRACTOR shall be responsible for posting security personnel at the entrance to the raw water pump station and at the tie-ins to the plant and monitoring all traffic into and out of the raw water pump station and the tie-ins to the plant. The security personnel shall be on duty anytime the controlled access areas are open and are being accessed. 8. CONTRACTOR and Subcontractor personnel shall be responsible for monitoring activities and providing deterrence to undesirable activities at the project site. Construction Security

7 1.02 SECURITY PERSONNEL QUALIFICATOINS A. Security personnel assigned to monitor entry to the raw water pump station and the tie-ins at the SWATS plant shall, at a minimum, meet the requirements and be licensed as Commissioned Security Officers in accordance with the requirements defined by the Texas Department of Public Safety CONSTRUCTION PERSONNEL REQUIREMENTS A. Background Security Checks 1. Current background security check (no older than one year prior to Notice to Proceed) required for each CONTRACTOR and Subcontractor employee. 2. Acceptable background sources of information include the United States Federal Government, the Department of Public Safety from the employee s home state (the state that issued their driver s license or identification card), and for noncitizens, the native country s national law-enforcement agency. Alternatively the CONTRACTOR may utilize AccuReport.com for background checks. 3. The results of each background check shall be dated and submitted to the Engineer as an original, certified official document from the agency performing the check, and shall bear all appropriate seals and signatures of the agency performing the check and include the agency address and telephone number. 4. Disqualifiers for Security Checks a. Murder Conviction b. Any Terroristic Act or Threat c. Any Registered Sex Offender d. Any Conviction of Violence that Causes Serious Bodily Injury within past 5 years e. Felony Theft Conviction within past 10 years f. Felony Burglary Conviction within past 10 years CONTRACTOR may add additional disqualifiers. 5. The results of background checks may be audited at any time. B. Identification Badges 1. Security Identification badges for employees of CONTRACTORS and Subcontractors shall be picture badges as approved by Engineer at start of construction. 2. Furnish Security ID Badge for each CONTRACTOR and Subcontractor employee who requires access to the raw water pump station and the SWATS plant site. 3. Plastic badge holders with an appropriate clip that will protect the badge and allow it to be worn and displayed safely by employees on the outside of their clothing shall be provided to and worn by construction personnel. 4. Security ID Badge shall be made of durable plastic material with minimum dimensions of 2-1/8 inches by 3-3/8 inches, and shall show a clear, photographic image of the bearer, with a vertical facial image not less than ¾ inches high. Visitor badges shall be similar, with the words VISITOR on them. The visitor badge shall be red or another easily identifiable color. 5. Each badge shall clearly display the name of the employee and the employer company. 6. CONTRACTOR shall be responsible for all production of badges and submission of information (including copy of badge and digital photo of personnel) to the Engineer. 7. CONTRACTOR shall be responsible for retrieving badges from employees when they are terminated for any reason, and on a weekly basis shall submit a list of currently active badge holders by employing company to the Engineer. Construction Security

8 8. The Engineer may require withdrawal of badges from construction personnel due to changes in employee background, due to employee conduct on the project, or due to any activities deemed detrimental to the project, detrimental to the facility, or resulting in danger to other personnel ACCESS CONTROL A. Working Hours 1. Site access for employees of all CONTRACTORS and Subcontractors shall be monitored (badges) by the security personnel at the secured areas entrances. 2. CONTRACTOR shall notify security personnel at entrance in writing of expected construction traffic other than employees (deliveries, equipment servicemen, and others), or security personnel shall contact construction superintendent of appropriate CONTRACTOR or Subcontractors to vouch for entry of nonemployee construction related parties. Cell phone numbers shall be provided to the security personnel for the construction superintendents authorized to vouch for entry. Approved individuals shall receive a visitor badge and shall be escorted by badged contract personnel while on the work site. Visitor badges shall be returned to the security personnel upon departing the worksite. CONTRACTOR is responsible for the actions of all visitors while on the work site. 3. Security personnel shall coordinate with the Engineer and obtain approval for unexpected raw water pump station and/or SWATS plant visitors to these locations. B. Non-Working Hours 1. Where the raw water pump station or plant access is required in other than normal working hours, CONTRACTOR and Subcontractors shall coordinate with the Engineer to coordinate access. Not less than 48 hour notice shall be provided for access during non-working hours. 2. Gates or temporary access into the current areas of the raw water pump station or the plant that are fenced shall be secured by the CONTRACTOR at the end of the work day. END OF SECTION Construction Security