ZONE 7 WATER AGENCY CWS 5 TURNOUT REPLACEMENT PROJECT # ADDENDUM NO. 3 April 02, 2019

Size: px
Start display at page:

Download "ZONE 7 WATER AGENCY CWS 5 TURNOUT REPLACEMENT PROJECT # ADDENDUM NO. 3 April 02, 2019"

Transcription

1 ZONE 7 WATER AGENCY CWS 5 TURNOUT REPLACEMENT PROJECT # ADDENDUM NO. 3 April 02, 2019 This Addendum No. 3 ( Addendum ) is dated the date set forth above and modifies certain Bidding Documents issued by the Alameda County Flood Control and Water Conservation District, acting by and through its Zone 7 Water Agency ( District ) in connection with the District s project: CWS 5 TURNOUT REPLACEMENT PROJECT- Project # All capitalized terms not otherwise defined herein shall have the meanings provided in the Bidding Documents. There are no other amendments to the Bidding Documents other than expressly contained in this Addendum No. 3. The following clarifications and/or modifications shall be incorporated into plans and specifications for the above-referenced project and shall become part of the Contract Documents. All other provisions and requirements shall remain unchanged. Addendum Item 1 2 Document/ Section EXHIBIT A CONTRACT DRAWINGS Section CONTRACT DOCUMENTS AND SPECIFICATIONS Location and Description of Change Replace Exhibit A Contract Drawings with the attached Revised Drawings Addendum #3 Please add the attached Contract Specification Section Paints and Coatings to the Contract Specifications. Please be reminded that all bidders shall acknowledge receipt of this Addendum No. 3 in Document 00400A (Bid Form) and failure to acknowledge addendum in the Bid Form shall render the bid non-responsive and shall be cause for its rejection. Acknowledgement of receipt of Addendum No. 3 for the CWS 5 Turnout Replacement Project, Livermore, California, Project No Please also sign and a copy of this page to John Koltz, Zone 7 Water Agency, at jkoltz@zone7water.com to acknowledge receipt of Addendum No. 3 for this project. Page 1 of 2

2 ZONE 7 WATER AGENCY CWS 5 TURNOUT REPLACEMENT PROJECT # ADDENDUM NO. 3 April 02, 2019 Signature and Print Name Date Company Page 2 of 2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17 SECTION PAINTS AND COATINGS PART 1 - GENERAL 1.01 SECTION INCLUDES A. Surface preparation. B. Field application of paints. C. Scope: Finish all interior and exterior surfaces exposed to view, unless fully factoryfinished and unless otherwise indicated, including the following: 1. Mechanical Piping. 2. Mechanical Piping Fittings & Appurtenances RELATED REQUIREMENTS A. Section Miscellaneous Metalwork 1.03 QUALITY ASSURANCE A. Regulatory Requirements: Furnish materials approved for use by applicable air quality management district for limitations of volatile organic compounds for architectural or special coatings as applicable. B. Applicator Qualifications: Company specializing in performing the type of work specified with minimum three years experience SUBMITTALS A. See Section Submittal Procedures, and Section A Appendix 1 Instructions, for submittal procedures. B. Product Data: Provide data on all finishing products, including VOC content. C. Samples: Submit two painted samples, illustrating selected colors and textures for each color and system selected with specified coats cascaded. Submit on tempered hardboard, 12 x 12 inch in size. D. Manufacturer's Instructions: Indicate special surface preparation procedures. E. Maintenance Data: Submit data on cleaning, touch-up, and repair of painted and coated surfaces. CWS 5 Replacement Project Paint and Coatings

18 1.05 DELIVERY STORAGE AND HANDLING A. Deliver products to site in sealed and labeled containers; inspect to verify acceptability. B. Container Label: Include manufacturer's name, type of paint, brand name, lot number, brand code, coverage, surface preparation, drying time, cleanup requirements, color designation, and instructions for mixing and reducing. C. Paint Materials: Store at minimum ambient temperature of 45 degrees F and a maximum of 90 degrees F, in ventilated area, and as required by manufacturer's instructions FIELD CONDITIONS A. Do not apply materials when surface and ambient temperatures are outside the temperature ranges required by the paint product manufacturer. B. Follow manufacturer's recommended procedures for producing best results, including testing of substrates, moisture in substrates, and humidity and temperature limitations. C. Do not apply exterior coatings during rain or snow, or when relative humidity is outside the humidity ranges required by the paint product manufacturer. D. Minimum Application Temperatures for Latex Paints: 45 degrees F for interiors; 50 degrees F for exterior; unless required otherwise by manufacturer's instructions. E. Provide lighting level of 80 ft candles measured mid-height at substrate surface WARRANTY A. Color and Life of Film General 1. At the end of 1 year, colors of surfaces shall have remained free from serious fading. Variations (if any) shall be uniform. 2. Materials shall have their original adherence at the end of 1 year. There shall be no evidence of blisters, running, peeling, scaling, chalking, streaks or stains at the end of this period EXTRA MATERIALS A. At completion of the Work, deliver to Owner extra stock of paint of each color used in each coating material used. B. Containers shall be full, tightly sealed, and clearly marked. C. Provide the following quantities: 1. Field Colors: One 5-gallon container. CWS 5 Replacement Project Paint and Coatings

19 2. Accent Colors: One 1-gallon container PART 2 - PRODUCTS 2.01 MANUFACTURERS A. Provide all paint and coating products used in any individual system from the same manufacturer; no exceptions. B. High-Performance Coating for Exterior Steel: Devoe by International Protective Coatings as scheduled below, PPG Industries, Tnemec or equal PERFORMANCE CRITERIA A. High-Performance Coating Systems shall meet the following requirements: 1. Abrasion: ASTM D4060, CS-17 Wheel, 1,000 grams load, no more than 95 mg. loss after 1000 cycles. 2. Adhesion: ASTM D3359 Method B (Crosshatch Adhesion), coating applied to sandblasted steel and cured 30 days at 77º F, minimum rating of 5 on average of three tests. 3. Humidity: ASTM D4585, no blistering, cracking or delamination of film after 1000 hours exposure. 4. Salt Spray (Fog): ASTM B117, no blistering, rusting, cracking or delamination of film; maximum 1/8 inch rust creepage at scribe after 1000 hours exposure. 5. Ultraviolet: ASTM G154, no blistering, cracking or chalking, less than 35 percent gloss loss and less than 3.5 MacAdam unit color change after 1500 hours exposure. B. Finish coat of standard performance coatings shall be capable of being washed with mild detergent without loss of color, sheen, or pigments PAINTS AND COATINGS - GENERAL A. Paints and Coatings: Ready mixed, unless intended to be a field-catalyzed coating. 1. Provide paints and coatings of a soft paste consistency, capable of being readily and uniformly dispersed to a homogeneous coating, with good flow and brushing properties, and capable of drying or curing free of streaks or sags. 2. Supply each coating material in quantity required to complete entire project's work from a single production run. CWS 5 Replacement Project Paint and Coatings

20 3. Do not reduce, thin, or dilute coatings or add materials to coatings unless such procedure is specifically described in manufacturer's product instructions. B. Primers: Where the manufacturer offers options on primers for a particular substrate, use primer categorized as "best" by the manufacturer. C. Volatile Organic Compound (VOC) Content: 1. Provide coatings that comply with the most stringent requirements specified in the following: a. 40 CFR 59, Subpart D--National Volatile Organic Compound Emission Standards for Architectural Coatings. 2. Determination of VOC Content: Testing and calculation in accordance with 40 CFR 59, Subpart D (EPA Method 24), exclusive of colorants added to a tint base and water added at project site; or other method acceptable to authorities having jurisdiction PAINT SYSTEMS - EXTERIOR A. Primer Polyamide, anti-corrosive Epoxy Primer, 1 coat 4 MDFT B. Finish - High-Performance, Acrylic Polyurethane, 2 coats, 3MDFT 1. Color: Federal Standard 595, Color ACCESSORY MATERIALS A. Accessory Materials: Provide all primers, sealers, cleaning agents, cleaning cloths, sanding materials, and clean-up materials required to achieve the finishes specified whether specifically indicated or not; commercial quality. PART 3 - EXECUTION 3.01 EXAMINATION A. Verify that surfaces are ready to receive work as instructed by the product manufacturer. B. Examine surfaces scheduled to be finished prior to commencement of work. Report any condition that may potentially affect proper application. C. Test shop-applied primer for compatibility with subsequent cover materials. D. Measure moisture content of surfaces using an electronic moisture meter. Do not apply finishes unless moisture content of surfaces are within the limitations recommended by the paint manufacturer. CWS 5 Replacement Project Paint and Coatings

21 3.02 PREPARATION A. Clean surfaces thoroughly and correct defects prior to coating application. B. Prepare surfaces using the methods recommended by the manufacturer for achieving the best result for the substrate under the project conditions. C. Remove surface appurtenances, including electrical plates, hardware, light fixture trim, and fittings, prior to preparing surfaces or finishing. D. Surfaces: Correct defects and clean surfaces which affect work of this section. Remove or repair existing coatings that exhibit surface defects. E. Seal surfaces that might cause bleed through or staining of topcoat. F. Metals: 1. Remove mill scale, rust, and corrosion. 2. Clean oils, grease, and dust from surfaces. 3. Touch up chipped or abraded areas in shop coatings, using appropriate primer. 4. Soluble Salts: Removal of soluble salts from bare metal and galvanized metal surfaces, both interior and exterior, is required prior to application of primer coats to preclude premature coating failure and accelerated corrosion. a. Removal shall be in accordance with SSPC-Guide 15, Field Methods for Retrieval and Analysis of Soluble Salts on Steel and Other Nonporous Substrates. b. Abrasive blasting, where specified as a required surface preparation procedure, shall be performed after removal of soluble salts. Abrasive blasting is not an acceptable procedure for removal of soluble salts. G. Surfaces that cannot be prepared or painted as specified shall be immediately brought to the attention of the Engineer in writing APPLICATION A. Apply products in accordance with manufacturer's instructions. Apply using suitable brushes, rollers or spraying equipment. B. Do not apply finishes to surfaces that are not dry. Allow applied coats to dry before next coat is applied. C. Apply each coat to uniform appearance. D. Rate of application shall be within limits recommended by manufacturer for surface involved. CWS 5 Replacement Project Paint and Coatings

22 E. Spray-Gun Application: 1. Spray-apply standard paints only with airless sprayer. 2. Apply a fine, even spray, without addition of thinner, using nozzle pattern suitable to surface being painted. 3. When necessary, follow by brushing to ensure uniform coverage and to eliminate wrinkling, blistering, and air holes. 4. If spraying becomes detrimental to equipment or objectionable to personnel, brush painting will be required. F. Finish coats shall be smooth and free from brush marks, streaks, laps or pileup of paints, and skipped or missed areas CLEANING A. Collect waste material that could constitute a fire hazard, place in closed metal containers, and remove daily from site. B. Removed spilled, splashed or spattered paint from all surfaces. C. Do not mar surface finish of item being cleaned. END OF SECTION CWS 5 Replacement Project Paint and Coatings