01 11 00 summary of work - gwpat.comgwpat.com/zzz jan 10mgrescorrosionrepair-rfqpacket.pdf ·...

SUMMARY OF WORK 01 11 00

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10 MG RESERVOIR CORROSION REPAIR PROJECT

SECTION 01 11 00

SUMMARY OF WORK Last Updated: January 21, 2015

Part 1 GENERAL 1.1 SECTION INCLUDES

A. General requirements regarding 10 MG Reservoir Corrosion Repair Project.

1.2 DEFINITIONS

A. Terms used in this section: 1. District - Metropolitan Water District of Salt Lake & Sandy. 2. Owner - Metropolitan Water District of Salt Lake & Sandy. 3. MG - Million Gallon

1.3 WORK

A. Background: The Metropolitan Water District of Salt Lake & Sandy (District) owns and operates the 10 Million Gallon (MG) finished water storage reservoir located along the Salt Lake Aqueduct Corridor on Enchanted Hills Circle (7440 South) and 3270 East. The 10 MG reservoir was built in 1991 as a peaking reservoir in order to dampen nearby turnout flow fluctuations, provide quick emergency needs, and provide better operational flexibility. The reservoir is a circular reinforced concrete structure. It has one main inlet pipe and two outlet pipes all of which are welded steel.

B. Work: The following items inside of the reservoir are experiencing signs of corrosion and need to be recoated as per this specification section and section 09 97 13 Steel Pipe Recoatings: 1. 66-inch Inlet Pipe. 2. 48-inch Weir Box Outlet Pipe. 3. 66-inch Main Outlet Pipe 4. Any fittings, valves, pipes, couplings, and actuators associated with

the piping mentioned in items 1. through 3. 5. Note that hatches are not part of the work.

1.4 DRAWINGS & PHOTOS

A. Attached as Exhibit A are key drawings and photos of the 10 MG Reservoir with hatching showing the piping which is to be re-coated.

1.5 SUBMITTALS

A. All submittals shall be submitted electronically to the Owner in PDF format.

B. Disorganized or incomplete submittals shall be returned without review. C. Each submittal shall have an Owner-provided, Contractor-filled out, cover


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sheet. On the top right hand portion of the cover sheet there the Contractor shall assign each submittal a unique chronological number followed by the specification section i.e. "1 - 09 97 13".

D. Submittals reviewed by the Owner shall be returned in one of four ways: "NO EXCEPTIONS TAKEN," "MAKE CORRECTIONS NOTED," "REVISE AND RESUBMIT," and "REJECTED-RESUBMIT." The former two do not require re-submittal, the latter two will require re-submittal. Any re-submittal given to the Owner will have a period "." and then a number i.e. "1" immediately after the unique chronological number i.e. "1.1 - 09 97 13".

E. Safety Plan 1. Contractor shall be responsible submitting a safety plan to the

District. 2. The safety plan shall demonstrate compliance with the

requirements of Utah Occupational Safety and Health Administration (OSHA), and any other applicable, local, state and federal safety programs and statutes.

3. The safety plan shall include but not be limited to the following: a. Hazard Analysis Prior to Major Activities (job safety analysis,

JSA); b. Emergency Plan; c. Confined Space Entry Program; d. Lock Out/Tag Out; e. Fall Protection; f. Material Handling (storage-disposal); g. Ventilation; h. Personal Protective Equipment (hearing, eye, face, etc...); i. Environmental Controls; j. Spill Control Plan; k. First Aid Plan.

F. Other Submittals - Reference Specification Section 09 97 13 Steel Pipe Recoating.

1.6 SAFETY

A. Contractor shall submit a safety plan in accordance with Section 1.5 E. B. Contractor shall demonstrate compliance with the requirements of Utah

Occupational Safety and Health Administration (OSHA), and any other applicable, local, state and federal safety programs and statutes.

C. Hazardous Substances: 1. Contractor shall provide District with a list of all hazardous

substances Contractor anticipates will be brought on site. 2. Contractor shall have on site Material Safety Data Sheets (MSDS)

prior to arrival of any hazardous substances on the Project. 3. Contractor shall use storage area(s) outlined in the Contractor's

spill control plan.


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1.7 SCHEDULE CONSTRAINTS A. In order to satisfy the Project, the Contractor shall meet with and

understand the following project schedule constraints: 1. February 9, 2015: Anticipated Notice to Proceed. 2. March 2, 2015: Gain Entry/Begin Work inside 10 MG Reservoir. 3. April 3, 2015: Completion of All Work, reservoir returned to service.

1.8 PURCHASE ORDER

A. Once a successful bidder has been selected, the Owner will issue a Purchase Order. The Purchase Order will act as the Notice to Proceed for the project.

1.9 INSURANCE

A. The limits of liability for insurance on this Project shall provide coverage for not less than the amounts provided in Exhibit B, or greater where required by Laws and Regulations.

1.10 PAYMENT

A. Monthly pay applications shall be submitted to the Owner on or before the fifth day of the following month.

B. Pay applications shall be submitted using Owner-furnished pay application form.

C. The final payment shall not be released until all work is complete and accepted by the Owner.

1.11 WORK HOURS

A. Normal work hours shall be from 7:30 a.m. to 5:30 p.m. Monday Through Friday.

B. Special non-normal work hours may be approved by the District with prior written approval.

Part 2 PRODUCTS Not Used Part 3 EXECUTION Not Used

END OF SECTION

Attachments Exhibit A – DRAWINGS & PHOTOS Exhibit B - INSURANCE & BOND REQUIREMENTS

STEEL PIPE RECOATING 09 97 13

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10 MG RESERVOIR CORROSION REPAIR PROJECT 1

SECTION 09 97 13 STEEL PIPE RECOATING

LAST UPDATE: JANUARY 28, 2015

PART 1 GENERAL

1.01 REFERENCES

A. The following is a list of standards which may be referenced in this section:

1. NACE International: SP0188, Discontinuity (Holiday) Testing of New Protective Coatings on Conductive Substrates.

2. NSF International (NSF): a. NSF/ANSI 61, Drinking Water System Components - Health

Effects. b. NSF/ANSI 372, Drinking Water System Components - Lead

Content. 3. Society for Protective Coatings (SSPC):

a. Surface Preparation Standards: 1) SP 1, Solvent Cleaning. 2) SP 2, Hand Tool Cleaning. 3) SP 3, Power Tool Cleaning. 4) SP 5, White Metal Blast Cleaning. 5) SP 7, Brush-Off Blast Cleaning. 6) SP 10, Near White Blast Cleaning. 7) SP 11, Power Tool Cleaning to Bare Metal. 8) SP 12, Surface Preparation and Cleaning of Metals by

Waterjetting Prior to Recoating. b. Paint Application Guides:

1) PA 1, Shop, Field, and Maintenance Painting of Steel. 2) PA 2, Measurement of Dry Coating Thickness with

Magnetic Gages. 3) PA Guide 10, A Guide to Safety in Paint Application.

c. Technology Guide: Guide 6, Guide for Containing Debris Generated During Paint Removal Operations.

1.02 DEFINITIONS

A. Terms used in this section:

1. Coverage: Total minimum dry film thickness in mils, or square feet per gallon.

2. MDFT: Minimum Dry Film Thickness, mils. 3. MDFTPC: Minimum Dry Film Thickness per Coat, mils. 4. Mil: Thousandth of an inch.


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5. PPDS: Paint Product Data Sheet. 6. PSDS: Paint System Data Sheet. 7. SP: Surface preparation. 8. VOC: Volatile Organic Compounds.

1.03 SUBMITTALS

A. Action Submittals:

1. Data Sheets: a. For each paint system used, and each product in the system,

furnish: 1) Paint System Data Sheet (PSDS). 2) Paint Product Data Sheet (PPDS). 3) Paint colors available.

b. The PSDS and PPDS forms are appended to the end of this section.

c. Submit required information on a system-by-system basis. d. Submit manufacturer recommended minimum cure temperature

and maximum humidity to achieve the project-required 7-day cure time.

e. Technical and performance information that demonstrates compliance with Specification.

f. Provide copies of paint system submittals to coating applicator. g. Also provide copies of paint system submittals to the coating

applicator. h. Indiscriminate submittal of manufacturer’s literature only is not

acceptable. 2. Detailed chemical and gradation analysis for each proposed abrasive

material. 3. Samples:

a. For each paint system used, furnish colors available (where applicable) for each product used in paint system.

b. Proposed Abrasive Materials: 1/2-pound sample for each type proposed.

B. Informational Submittals:

1. Coating Manufacturer’s Certificate of Compliance that coating was applied in accordance with manufacturer’s recommendations.

2. Current NSF 61 certification for potable water contact. 3. Proposed sequence for removing existing coatings, surface preparation

of piping, and coupling surfaces, and other coating sequencing steps as required to complete the project and meet the manufacturer recommendations.


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4. Submit Applicator’s Qualifications documenting: a. List at least three successful projects (with contact names and

phone numbers) within past 5 years where similar equipment and procedures have been used to recoat steel piping (or tank) in similar conditions.

b. Description of proposed equipment, procedures, and abrasive blast mix. Coordinate with Article 1.03 Submittals, Paragraph A. Action Submittals.

5. Field applicator’s quality control program, including, but not limited to: a. Containment to isolate piping to be sand blasted and coating from

the rest of the tank. b. Dehumidification and heating equipment required to maintain

minimum temperature and maximum humidity around piping being coated during coating and 7-day curing period after coating.

c. Environmental test methods and frequency. d. Steel surface temperature and profile measurement procedure and

frequency. e. Record keeping form.

6. Manufacturer’s written instructions for applying each type of coating. 7. Field Testing: Inspection and test reports. 8. Manufacturer’s Certificate of Proper Installation stating that the work

has been done per this specification and per manufacturer recommendations.

1.04 QUALITY ASSURANCE

A. Regulatory Requirements: Meet federal, state, and local agencies having jurisdiction for Site and types of work activities included in Project, including, but not limited to:

1. Limitations on emission of volatile organic compounds, dust, and other contaminants.

2. Requirements for disturbance, handling, and disposal of paint waste and associated debris, including lead, coal tar, abrasive, and other regulated substances.

B. Industry Best Practices:

1. Perform surface preparation and painting in accordance with recommendations of the following: a. Paint manufacturer’s instructions. b. SSPC–PA Guide 3. c. Federal, State, and local agencies having jurisdiction.

2. Do not apply paint in temperatures outside of manufacturer’s recommended maximum or minimum allowable, in dust, in smoke-laden atmosphere, in damp or humid weather.


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3. Do not perform abrasive blast cleaning whenever relative humidity exceeds 85 percent or whenever surface temperature is less than 5 degrees F above dewpoint of ambient air.

C. Preinstallation Meeting:

1. Prior to beginning field preparation and painting Work, schedule a meeting and be prepared to discuss the following subjects, as a minimum: a. Required schedule. b. Sequence of critical path work items. c. Use of Site, access, storage areas, security, and temporary

facilities. d. Major product delivery and priorities. e. Safety plan.

2. Attendees shall include: a. Owner’s representative(s). b. Contractor’s resident superintendent and quality control

representative. c. Paint manufacturer’s technical representative.

1.05 DELIVERY, STORAGE, AND HANDLING

A. Deliver materials to Site in unopened containers labeled with designated name, date of manufacture, color, and manufacturer.

B. Store paints in a protected area that is heated or cooled as required to maintain temperatures within range recommended by paint manufacturer.

1.06 SPECIAL GUARANTEE

A. Furnish manufacturer’s extended guarantee or warranty, with Owner named as beneficiary, in writing, as special guarantee. Special guarantee shall provide for correction, or at the option of Owner, removal and replacement of Work specified in this Specification section found defective during a period of 2 years after date of Substantial Completion. Duties and obligations for correction or removal and replacement of defective Work as specified in General Conditions.

1. 24-Month Warranty Period Inspection: Owner will conduct inspection of coated surfaces prior to the end of warranty period. Owner will notify Contractor in advance of inspection and Contractor may attend at its option. Owner will prepare list of coating defects and failures identified during inspection and transmit to Contractor. List shall serve as notice of repairs required under warranty.

2. Repairs:


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a. If repairs are required, requirements of Contract shall apply including, but not limited to, requirements to remove standing water in tanks, perform repair work, and tank cleaning prior to disinfection.

b. Repair defective coatings using coating materials, equipment, and methods similar to those used in original work. Materials shall be of fresh manufacture and within manufacturer’s stated shelf life at time of application.

c. Provide extended warranty of 1 year for repairs. d. Provide a separate bond for a 1 year repair warranty period. e. Complete repairs within 30 calendar days of Warranty Period

Inspection.

1.07 EXISTING COATING STATUS

A. The following information is provided for Contractor’s information. Information shall not relieve Contractor from responsibility to inspect reservoir and assess existing coatings and structural dimensions.

1. Sandblast, reline and recoat all pipes, valves, couplings (nuts and bolts), flanges (flange nuts and bolts) and other piping highlighted on Drawings after this Specification. Perform all highlighted and red-lined work shown on Drawings.

2. Existing pipes were painted in the early 1990s. The type of coating, number of coats, and surface preparation used in the original construction are unknown.

3. Observations of the pipe in 2013 indicated the coating was mostly intact with good adhesion to the metal surface. Corrosion is occurring at coating defects, and the corrosion products appear to be tightly adhered to the metal surface.

1.08 CATHODIC PROTECTION ANODES AND JOINT SEALANT

A. Remove and dispose of existing cathodic protection/galvanic anodes on the 66-inch Inlet and Outlet valve flanges. Install new galvanic anodes at the same location. Galvanic anodes shall be 32-pound H-1 Alloy Magnesium Anode with 10 feet of #10 AWG solid copper conductor.

B. A caulking contractor will be replacing all floor joints in the reservoir with new sealant. At the steel pipe to concrete interfaces, existing joint sealant shall be completely removed by painting contractor before sandblasting. Once coating is fully cured, the caulking contractor will install new joint sealant around the steel pipe to concrete interface.


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1.09 EXISTING STAINLESS STEEL VALVE/ACTUATOR RELATED COMPONENTS

A. Any stainless steel components on actuators, gear reducers, etc... which don't have existing coatings thereon shall remain uncoated. These components shall be protected from any surface preparation, blasting, and coating activities.

PART 2 PRODUCTS

2.01 GENERAL

A. Components and Materials in Contact with Water for Human Consumption: Comply with the requirements of the Safe Drinking Water Act and other applicable federal, state, and local requirements. Provide certification by manufacturer or an accredited certification organization recognized by the Authority Having Jurisdiction that components and materials comply with the maximum lead content standard in accordance with NSF/ANSI 61 and NSF/ANSI 372.

1. Use or reuse of components and materials without a traceable certification is prohibited.

2.02 MANUFACTURERS

A. Materials, equipment, and accessories specified in this section shall be products of one of the following:

1. Carboline Coatings Company, St. Louis, MO. 2. Sherwin-Williams, Cleveland, OH. 3. Tnemec Coatings, Kansas City, MO.

2.03 MATERIALS

A. Quality: Manufacturer’s highest quality products and suitable for intended use.

B. Materials Including Primer and Finish Coats: Produced by same paint manufacturer.

C. Thinners, Cleaners, Driers, and Other Additives: As recommended by paint manufacturer of the particular coating.

D. NSF Epoxy: Polyamidoamine or phenalkamine cured epoxy coatings approved for potable water contact and conforming to NSF/ANSI 61.

E. Caulking: Two-component polyurethane caulk, suitable for potable water contact conforming to NSF 61 and compatible with the NSF Epoxy.


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2.04 COLORS

A. Topcoat: Light Blue.

B. Formulate with colorants free of lead and lead compounds.

C. Furnish as designated herein.

D. Proprietary identification of colors is for identification only. Selected manufacturer may supply matches.

2.05 MIXING

A. Multiple-Component Coatings:

1. Prepare using contents of container for each component as packaged by paint manufacturer.

2. No partial batches will be permitted. 3. Do not use multiple-component coatings that have been mixed beyond

their pot life. 4. Furnish small quantity kits for touchup painting and for painting other

small areas. 5. Mix only components specified and furnished by paint manufacturer. 6. Do not intermix additional components for reasons of color or

otherwise, even within the same generic type of coating.

B. Keep paint material containers sealed when not in use.

2.06 ABRASIVES

A. Select abrasive type and size to produce a surface profile that meets coating manufacturer’s recommendations for specific primer and coating system to be applied.

B. Select abrasives that conform to federal and state regulations for metals and toxicity.

PART 3 EXECUTION

3.01 GENERAL

A. Surface Preparation and Coating Application: Meet or exceed requirements of these Specifications and SSPC–PA 1, whichever is more stringent.

B. Inspect and provide substrate surfaces prepared in accordance with these Specifications and printed directions and recommendations of paint manufacturer whose product is to be applied.


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C. Paint existing exterior exposed metal surfaces of all piping and appurtenances within 10 MG tank, whether specifically mentioned or not, except as modified herein.

D. Notify District 3 business days before start of blast cleaning to allow for inspection of the Work during surface preparation. Perform such work in the presence of District, unless District grants prior approval to perform such work in District’s absence.

E. Schedule inspection with District at completion of all sandblasting and surface preparation work and before paint application.

F. Notify District 3 business days before paint application to allow inspection of the initial application of paint. Perform initial coating application work in presence of District unless District grants prior approval to perform Work in his absence.

G. Work, including blast cleaning and paint application, shall be subject to District approval.

H. Do not apply paint in temperatures outside of manufacturer’s recommended maximum or minimum allowable, or in dust, smoke-laden atmosphere, damp or humid weather.

I. Contractor shall take special precautions to avoid simultaneous abrasive blast cleaning and painting if the blast cleaning has any chance of affecting coating application and/or cure.

J. Do not perform abrasive blast cleaning whenever relative humidity exceeds 85 percent, or whenever surface temperature is less than 5 degrees F above dewpoint of ambient air.

K. Ventilation for Coating Cure: Provide fans to continuously ventilate tank interior, as required, to assist with coating cure. Provide heat and humidity control of air used for ventilation for coating cure, as specified herein.

3.02 PREPARATION

A. Remove, mask, or otherwise protect hardware, machined surfaces, nameplates, and other surfaces not intended to be painted.

B. Protect surfaces not intended to be painted from overspray.

C. Protect interior of pipes and valves not to be recoated (i.e. inlet/outlet and overflow pipes) - from abrasive blast residue and dust with inflatable pipe plug, as approved by District. Install temporary, appropriately sized polyethylene plug in pipes.


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3.03 ENVIRONMENTAL CONTROLS

A. Containment System:

1. Provide full containment of blast emissions during entire blast operations. Meet requirements of SSPC–Guide 6 as modified below. a. Provide Class 1 containment structure. Completely shroud blast

work area tank with opaque fabric that prevents spread of blast media, spent chips, corrosion byproducts, and dust.

b. Exhaust air shall be filtered by appropriately sized dust collectors. c. Verify effectiveness using Method A, General Surveillance,

Level 2, as described in SSPC–Guide 6.

B. Dehumidification Equipment:

1. Provide full-time dehumidification for field painting interior of reservoir. Dehumidification and heating equipment shall be provided by a supplier with at least 3 years’ experience with necessary equipment.

2. Use dehumidification and heating equipment to control environment 24 hours a day during blast cleaning and coating application. At Contractor’s option, dehumidification equipment may also be used during curing process.

3. Provide desiccant dehumidifiers as manufactured by Cargocaire Corporation, or equal. Desiccant dehumidifiers shall have a single rotary desiccant wheel capable of fully continuous operation. No liquid, granular, or loose lithium chloride drying systems will be allowed.

4. Interior space of reservoir shall be sealed and a slight positive pressure maintained as recommended by supplier of dehumidification equipment.

5. During blasting operation, dehumidification equipment shall continuously maintain a dewpoint of air inside tank at least 5 degrees F less than temperature of coldest part of tank where the Work is underway. Inside relative humidity shall not exceed 45 percent, unless specifically required by paint manufacturer for coating application and cure.

6. Auxiliary heat may be necessary to maintain surface temperature at an acceptable level for application of coating. Auxiliary equipment shall be approved for use by dehumidification equipment supplier and shall meet the following requirements: a. Install heaters in process air supply duct between, and blended

with, dehumidifier as close to space as possible. b. Use electric, indirect fired combustion, or steam coil auxiliary

heaters. Direct fired space heaters will not be allowed during blasting, coating, or curing cycles.

c. Equip heaters with controls that automatically turn heater off if airflow is interrupted or internal temperature of heater exceeds its design temperature or design temperature of supply duct.


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7. Measure and record ambient temperature, relative humidity, dewpoint and reservoir wall temperature a minimum of twice daily (beginning and end of work shifts) to verify proper environmental levels are achieved inside reservoir. Field-measured test results shall be made available to District upon request.

C. Filtration System:

1. Designed to remove dust from air so that it does not interfere with dehumidification equipment’s ability to control dewpoint and relative humidity inside reservoir.

2. Air from reservoir or dust filtration equipment shall not be recirculated through dehumidifier during coating application or when solvent vapors are present.

D. Nuisance Leakage:

1. It will be the responsibility of the Contractor to manage any nuisance leakage water within the project site.

3.04 PREPARATION OF SURFACES

A. Metal Surfaces:

1. Meet requirements of the following SSPC Specifications: a. Solvent Cleaning: SP 1. b. Hand Tool Cleaning: SP 2. c. Power Tool Cleaning: SP 3. d. White Metal Blast Cleaning: SP 5. e. Brush-Off Blast Cleaning: SP 7. f. Near-White Blast Cleaning: SP 10. g. Power Tool Cleaning to Bare Metal: SP 11. h. High Pressure Water Jetting: SP 12.

2. Wherever the words “solvent cleaning”, “hand tool cleaning”, “wire brushing”, or “blast cleaning”, or similar words of equal intent are used in these Specifications or in paint manufacturer’s specifications, they shall be understood to refer to the applicable SSPC Specifications listed above.

3. Where OSHA or EPA regulations preclude standard abrasive blast cleaning, wet or vacu-blast methods may be required. Coating manufacturers’ recommendations for wet blast additives and first coat application shall apply.

4. Preblast Cleaning Requirements: a. Remove oil, grease, welding fluxes, and other surface

contaminants prior to blast cleaning.


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b. Cleaning Methods: Steam, open flame, hot water, or cold water with appropriate detergent additives followed with clean water rinsing.

c. Clean small isolated areas as above or solvent clean with suitable solvents and clean cloths.

d. Round or chamfer sharp edges and grind smooth burrs, jagged edges, and surface defects.

e. Welds and Adjacent Areas: 1) Prepare such that there is:

a) No undercutting or reverse ridges on weld bead. b) No weld spatter on or adjacent to weld or other area to

be painted. c) No sharp peaks or ridges along weld bead.

2) Grind embedded pieces of electrode or wire flush with adjacent surface of weld bead.

5. Blast Cleaning Requirements: a. Type of Equipment and Speed of Travel: Design to obtain

specified degree of cleanliness. Minimum surface preparation is as specified herein and takes precedence over coating manufacturer’s recommendations.

b. Select type and size of abrasive to produce a surface profile that meets coating manufacturer’s recommendations for particular primer to be used.

c. Use only dry blast cleaning methods. d. Abrasive blast all metal associated with pipe, including but on

limited to: 1) Piping, couplings, valves, actuators, and fasteners. All

stainless steel items shall be abrasively blasted. e. Do not reuse abrasive, except for designed recyclable systems. f. Meet applicable federal, state, and local air pollution and

environmental control regulations for blast cleaning and disposition of spent aggregate and debris.

6. Post-blast Cleaning and Other Cleaning Requirements: a. Clean surfaces of dust and residual particles from cleaning

operations by dry (no oil or water vapor) air blast cleaning or other method prior to painting. Vacuum clean enclosed areas and other areas where dust settling is a problem and wipe with a tack cloth.

b. Paint surfaces within 8 hours of the time they are blast cleaned. Reblast surfaces that have started to rust before they are coated.


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3.05 APPLICATION

A. General:

1. The intention of these Specifications is for existing exterior exposed and submerged metal surfaces of piping, valves, and appurtenances (including pipe end surfaces, and all exterior parts and pieces of valves) –be painted, whether specifically mentioned or not, except as modified herein.

2. Apply coatings to external surfaces of steel piping and attached metal appurtenances including, but not limited to: a. Couplings, valves, actuators, bolting, including stainless steel

bolts and components, unless otherwise specified. Paint with a brush recessed or hidden surfaces such as the back sides of bolting. All recessed or hidden surfaces shall receive the specified four coats of paint.

3. Apply coatings in accordance with paint manufacturer’s recommendations. Allow sufficient time (per manufacturer’s recommendations) between coats to ensure thorough drying of previously applied coat.

4. Where more than one coat of a material is applied within a given system, alternate color to provide a visual reference that required number of coats have been applied.

B. Coatings Subject to Immersion:

1. Curing: a. Obtain full cure for completed system. b. Consult coatings manufacturer’s written instructions. c. Do not immerse coating until completion of curing cycle. d. Curing shall be done with heat and dehumidification in place.

C. Stripe Coating:

1. Consists of one coat, brush applied, to coating thickness specified. 2. Apply between intermediate and final coats. 3. Color shall contrast intermediate coat to allow visual verification of

application. 4. Apply to field welds, edges, angles, fasteners, and other irregular

surfaces located inside tanks.


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D. Film Thickness and Coverage:

1. Number of Coats: a. Minimum required without regard to coating thickness. b. Additional coats may be required to obtain minimum required

paint thickness, depending on method of application, differences in manufacturers’ products, and atmospheric conditions.

2. Maximum film build per coat shall not exceed coating manufacturer’s recommendations.

3.06 PROTECTIVE COATINGS SYSTEMS AND APPLICATION SCHEDULE

A. System No. 1A Submerged Metal—Potable Water:

Surface Prep. Paint Material Min. Coats, Cover

Detergent wash and fresh water rinse; abrasive blast to white metal (SP-5)

NSF Epoxy Initial Coat (white)

1 coat, 4 MDFT

NSF Epoxy Intermediate Coat (grey or beige)

1 coat, 4 MDFT

Stripe Coat with NSF Epoxy (white or beige )

1 coat, 3 MDFT

NSF Epoxy Finish Coat (light blue)

1 coat, 4 MDFT

1. Minimum Dry Film Thickness, Total System: a. Nonstripe Coated Areas: 12 MDFT. b. Stripe Coated Areas: 15 MDFT.

2. Application Schedule: Use on submerged exterior metal surfaces of steel piping, valving, and appurtenances inside tank, including, but not limited to, steel plates and structural steel, exposed exterior surfaces of steel piping, couplings, valves and actuators.

3. Mask off (and do not sandblast or coat) the interior of pipes, couplings, valves and actuators.

3.07 FIELD QUALITY CONTROL

A. Test Equipment:

1. Provide a dry film thickness gauge to test coating thickness as specified in mils. Use magnetic type dry as manufactured by Nordson Corp., Anaheim, CA, Mikrotest, or electronic dry film thickness, as manufactured by DeFelsko, Ogdensburg, NY, Positest, or approved equal.


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2. Provide electrical holiday detector, low voltage, wet sponge type to test finish coat, except zinc primer, high-build elastomeric coatings, and galvanizing as manufactured by Tinker and Rasor, San Gabriel, CA; Model M-1.

B. Film Thickness Measurements and Electrical Inspection of Coated Surfaces:

1. Perform with properly calibrated instruments. Perform thickness tests on each coating layer applied and on all surfaces coated. After stripe coat is dry and before finish coat, electrically test all surfaces recoated, and where failures occur, retest after finish coating. Email all thickness test results and all electrical (holiday/pinhole) inspection test results to District and Engineer within 24 hours after each test, regardless of whether test passes or fails.

2. Repair or recoat defective areas as necessary for compliance with Specifications.

3. All coats are subject to inspection by Engineer and coating manufacturer’s representative.

4. Give particular attention to edges, angles, flanges, and other similar areas, where insufficient film thicknesses are likely to be present, and ensure proper millage in these areas.

C. Thickness Testing:

1. Measure coating thickness specified in mils with magnetic or electronic type dry film thickness gauge in accordance with SSPC–PA 2.

2. Check each coat for correct thickness. Do not make measurement before a minimum of 8 hours after application of each coating layer.

3. After repaired and recoated areas have dried sufficiently perform thickness testing of entire recoated area.

D. Holiday (Pinhole) Testing: Test finish coat on 100 percent submerged surfaces for holidays and discontinuities with electrical holiday detector in accordance with NACE SP0188.

E. Unsatisfactory Application:

1. If improper finish color or insufficient film thickness, clean surface and topcoat with specified paint material to obtain specified color and coverage. Obtain specific surface preparation information from coating manufacturer.

2. Repair defects in coating systems in accordance with written recommendations of coating manufacturer.

3. Overly thick areas, including runs, bridges shiners, and laps shall be sanded to remove excess material, and then seal coated with one new coat of paint.


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4. Holidays, missed spots, thin film areas shall be prepared per manufacturer’s recommendations and then additional coats applied.

5. Leave staging up until District has inspected surface or coating. Replace staging removed prior to approval by District.

F. Damaged Coatings, Pinholes, and Holidays:

1. Feather edges and repair in accordance with recommendations of paint manufacturer.

2. Hand or power sand visible areas of chipped, peeled, or abraded paint, and feather edges. Follow with primer and finish coat in accordance with Specifications. Depending on extent of repair and appearance, a finish sanding and topcoat may be required.

3. Apply finish coats, including touchup and damage-repair coats in a manner that will present a uniform texture and color-matched appearance.

3.08 MANUFACTURER’S SERVICES

A. Coating manufacturer’s technical representative shall be present at Site as follows:

1. On the first day of coating application, manufacturer representative shall provide a 4-hour minimum site visit in which he shall verify in writing to District that surface preparation, dehumidification, heating and coating application are per manufacturer recommendations - and if not, detail in writing to District, Engineer, and Contractor what is not in compliance with manufacturers recommendations with adequate temperature and humidity controls to achieve full cure of completed coating system within 7 days.

2. Within 24 hours of (each) site visit, coating manufacturer’s representative shall mail and email written report to District, Engineer, and Contractor. If the conditions at site do not comply with coating manufacturer’s recommendations (including site conditions adequate to accomplish a full cure in 7 days), manufactures representative shall make additional site visit and emailed reports to District, Engineer, and Contractor until he provides written notice that site conditions to comply with manufacturers recommendations and project specifications, including heating and dehumidification needed to fully cure coating in 7 days.

3.09 CLEANUP

A. Place cloths and waste that might constitute a fire hazard in closed metal containers or destroy at end of each day.


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B. Upon completion of the Work, which includes cure of the coating system and final testing, remove staging, scaffolding, and containers from Site or destroy in a legal manner.

C. Completely remove from work areas all project materials, debris, dirt, dust, paint, spots, oil, and stains upon surfaces and floors. Leave the work Site and adjoining areas entirely clean to the satisfaction of the District, and ready to refill tank with potable water.

D. Contractor recognizes the potential for release or spill into the tank drainage system. If a spill occurs, Contractor shall monitor, mitigate and immediately report spill to District.

3.10 PLANS AND PHOTOS

A. For existing coating photos and extent of recoating work see plans and photos as Exhibit A.

3.11 SUPPLEMENTS

A. The supplements listed below, following “End of Section,” are a part of this Specification:

1. Paint System Data Sheet (PSDS). 2. Paint Product Data Sheet (PPDS).

END OF SECTION

STEEL PIPE RECOATING 09 97 13 SUPPLMENT

MWDSLS


PAINT SYSTEM DATA SHEET (PSDS)

Complete and attach manufacturer’s Technical Data Sheet to this PSDS for each coating system.

Paint System Number (from Spec.):

Paint System Title (from Spec.):

Coating Supplier:

Representative:

Surface Preparation:

Paint Material (Generic)

Product Name/Number (Proprietary) Min. Coats, Coverage

Provide manufacturer’s recommendations for the following parameters at temperature (F)/relative humidity:

Temperature/RH 50/50 70/30 90/25

Induction Time

Pot Life

Shelf Life

Drying Time

Curing Time

Min. Recoat Time

Max. Recoat Time

Provide manufacturer’s recommendations for the following:

Mixing Ratio:

Maximum Permissible Thinning:


MWDSLS


Ambient Temperature Limitations: min.: max.: Surface Temperature Limitations: min.: max.: Surface Profile Requirements: min.: max.:

Attach additional sheets detailing manufacturer’s recommended storage requirements and holiday testing procedures.


MWDSLS


PAINT PRODUCT DATA SHEET (PPDS)

Complete and attach manufacturer’s Technical Data Sheet to this PPDS for each product submitted. Provide manufacturer’s recommendations for the following parameters at temperature (F)/relative humidity:

Temperature/RH 50/50 70/30 90/25

Induction Time

Pot Life

Shelf Life

Drying Time

Curing Time

Min. Recoat Time

Max. Recoat Time

Provide manufacturer’s recommendations for the following:

Mixing Ratio:

Maximum Permissible Thinning:

Ambient Temperature Limitations: min.: max.: Surface Temperature Limitations: min.: max.: Surface Profile Requirements: min.: max.:

Attach additional sheets detailing manufacturer’s recommended storage requirements and holiday testing procedures.

1

EXHIBIT A DRAWINGS & PHOTOS

2

SITE PLAN

Notes: 1. For Access Hatch sizes reference pages 16-17. 2. District requires permanent full time access to the orange shaded area. No obstructions allowed.

Parking (White Shade)

Staging/Parking

(Yellow Shade)

Approximate Site Address:

3270 East Enchanted Hills Circle

Cottonwood Heights, UT 84121

10 Million Gallon Reservoir

(Light Blue Shade)

Access Hatches1

Access Hatches1

Pad Locked

Gate

Air Vents

Air Vent

Access Hatch1

Air Vent

District Permanent

Access (Orange Shade)2

3

RESERVOIR PLAN VIEW

66-inch Inlet Pipe

66-inch Outlet Pipe

48-inch Weir Box

Outlet Pipe

4

66-INCH INLET PIPE

5

Photo 1 - 66-inch Inlet Pipe

Flange nuts and bolts

shall be coated.

6


Actuator extension shaft

shall not be coated.

Protect during blasting.

Gear reducer housing

and actuator housing

shall be coated.

Valve disk shall not be

coated. Protect during

blasting.

7


Actuator extension shaft

and internal stainless

uncoated stems shall not

be coated.

8

48-INCH WEIR BOX OUTLET PIPE

9

Note there is a small

section of 8-inch steel

bypass pipe at this point

(reference photos) which

needs to be coated as

well.

10

Photo 4 - 48-inch Weir Box Outlet Pipe

Couplings including nuts

and bolts shall be

coated.

8-inch bypass pipe shall be

coated to this flange point

only. The remainder of the

pipe is PVC.

11

Photo 5 - 48-inch Weir Outlet Pipe

8-inch bypass pipe shall be

coated to this flange point

only. The remainder of the

pipe is PVC.

Couplings including nuts

and bolts shall be

coated.

12

66-INCH OUTLET PIPE

14

Photo 6 - 66-inch Outlet Pipe

Valve disk shall not be


blasting.

Actuator internal

stainless steel uncoated

stems, shafts shall not be


blasting.

15

Photo 7 - 66-inch Outlet Pipe

Actuator internal stainless

steel uncoated stems,

shafts, and shaft

extensions shall not be


blasting.

All portions of Actuator and Valve

which have existing coatings shall be

recoated as per these specifications.

16

ACCESS HATCHES

EXHIBIT B

INSURANCE AND BOND REQUIREMENTS FOR PARTIES ENTERING INTO AGREEMENTS WITH METROPOLITAN WATER

DISTRICT OF SALT LAKE & SANDY Last Update: January 29, 2014

Contractor shall maintain, at no cost to the District, the following insurance, and provide evidence of compliance satisfactory to District.

A. MINIMUM LIMITS OF INSURANCE

Except as approved in writing by District in advance of the work to be performed, Contractor and all of Contractor's subcontractors shall maintain limits no less than: 1. GENERAL LIABILITY (including claims arising from: p remises-

operations, independent contractors, products-completed operations, personal and advertising injury, and liability assumed under an insured contract.):

i. Combined Single Limit (Bodily Injury and Property Damage): 1. $2,000,000 Per Occurrence

ii. Personal Injury (including completed operations and products liability): 1. $2,000,000 Each Occurrence

iii. General Aggregate: 1. $3,000,000

iv. Products - Comp/OP Aggregate: 1. $3,000,000

v. Limits to apply to this project individually. 2. AUTOMOBILE LIABILITY :

i. $2,000,000 Per Occurrence ii. "Any Auto" coverage required.

3. WORKERS' COMPENSATION and EMPOLOYERS LIABILITY:

i. Workers' compensation statutory limits. ii. Employers Liability statutory limits.

4. CONTRACTORS POLLUTION LIABILITY:

i. $1,000,000 Per Claim ii. $1,000,000 Aggregate iii. Coverage applies to this project individually.

B. DEDUCTIBLES AND SELF-INSURED RETENTIONS

Any deductibles or self-insured retentions (SIRs) must be declared to and approved by the District in writing. At the option of the District, either; the insurer may be required to reduce or eliminate such deductibles or SIRs as respects the District, its trustees, officers, and employees as additional insureds; or the Contractor may be required to procure a bond or other instrument guaranteeing payment of losses and

related investigations, claim distribution, and defense expenses of the District, its trustees, officers, and employees as additional insureds. The District does not ordinarily approve deductibles in an amount exceeding 2.5% of the required minimum limits described above or $50,000, whichever is less. The District does not ordinarily approve SIRs in an amount exceeding 1.0% of the required minimum limits described above or $20,000, whichever is less. With respect to any deductible or SIR, the Contractor shall pay for costs related to losses, investigations, claim distribution, and defense expenses of the District, its trustees, officers, and employees as additional insureds that would otherwise be covered by an insurer under the coverages described in these insurance requirements if no deductable or SIR existed.

C. OTHER INSURANCE PROVISIONS The General Liability, Automobile Liability, and Pollution LiabilityCoverages are to contain, or be endorsed to contain, the following provisions: 1. District, its trustees, officers, and employees are to be covered as additional

insureds as respects: claims arising out of the Work. The coverage shall contain no special limitations on the scope of protection afforded to District, its trustees, officers, and employees.

2. Additional insured coverage shall be on a primary basis for ongoing and

completed work. 3. Waiver of General Liability and Worker’s Compensation subrogation.

D. ACCEPTABILITY OF INSURERS Insurance and bonds are to be placed with insurers admitted in the State of Utah with a Bests' rating of no less than A-, IX, and in the limits as listed in this document, unless approved in writing by the District.

E. VERIFICATION OF COVERAGE Contractor and all of Contractor's subcontractors shall furnish District with certificates of insurance and with original endorsements effecting coverage required by this clause. The certificates and endorsements are to be signed by a person authorized by that insurer to bind coverage on its behalf. The certificates and endorsements are to be provided on forms acceptable to the District before work commences. District reserves the right to require complete, certified copies of all required insurance policies, with all endorsements, at any time. Contractor shall provide an insurance certificate and an endorsement evidencing compliance with this provision at least annually. From time to time District may increase the requirement for a liability limit by providing reasonable written notice to Contractor of such a change.

F. PERFORMANCE AND PAYMENT BONDS All persons and entities performing any work on District lands or District’s interest in lands will provide performance and payment bonds for the full sum of their contracts, naming the District as obligee.

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