Attachment__16_00_00_01_-_Revised_Specifications_Amd_0007_08092021_0007.pdf

Navajo-Gallup Water Supply Project Amendment 0007 San Juan Lateral – Navajo Code Talkers Sublateral – Reaches 12.1 & 12.2 Solicitation No. 140R4021R0009

Price Schedule Revised B - 1

SECTION B - SUPPLIES OR SERVICES AND PRICES

SAN JUAN LATERAL – NAVAJO CODE TALKERS SUBLATERAL

REACHES 12.1 & 12.2

NAVAJO-GALLUP WATER SUPPLY PROJECT - NEW MEXICO

B.1 PRICE SCHEDULE

(a) Offers will be considered for award on the following Price Schedules, but no offer will be considered for award on only a part of the Price Schedules.

(b) Offers are subject to terms and conditions of this solicitation.

(c) Quantities in the Price Schedules are estimated quantities for comparison of offers only.

Except as provided in contract clause at FAR 52.211-18, Variation in Estimated Quantity, no claim shall be made against Government for overruns or underruns. Contract clause at FAR 52.211-18, Variation in Estimated Quantity does not apply to lump sum items.

(d) See contract clause at WBR 1452.232-81, Payment for Mobilization and Preparatory Work, for CLIN 1-1.

(e) Definitions:

(1) CLIN – Contract Line Item Number.

PRICE SCHEDULE 1 (Reach 12.1)

CLIN Section Supplies or Services Quantity and Unit

Unit Price Amount

1-1 WBR

1452.232-81

Mobilization and Preparatory Work

For the lump sum of $

1-2 01 31 30 Contract Document Management System

For the lump sum of $

1-3 01 33 26 Electrical Drawings and Data For the lump sum of $

1-3a 01 55 20 Traffic Control Barriers 3,760 Lin Ft $ $

1-4 01 56 15 Protection of Existing Utilities For the lump sum of $

1-5 01 78 30 As-built and Final Drawings (All Reaches)

For the lump sum of $150,000

1-6 01 78 30 Operations and Maintenance (O&M) Manuals (All Reaches)

For the lump sum of $25,000

1-7 03 48 10 Precast Concrete Manhole Sections

For the lump sum of $

San Juan Lateral – Navajo Code Talkers Sublateral – Reaches 12.1 & 12.2 Solicitation No. 140R4021R0009

Revised B - 2

PRICE SCHEDULE 1 (Reach 12.1)

CLIN Section Supplies or Services Quantity and Unit

Unit Price Amount

1-8 03 81 10 Concrete Removal 150 yd3 $ $

1-9 25 00 01 System Control and Monitoring For the lump sum of $

1-10 26 05 02 Complete Electrical System For the lump sum of $

1-11 26 05 33 2-inch HDPE Conduit 58,730 lin ft $ $

1-12 26 42 10 Submerged Galvanic Anode Cathodic Protection System for Welded Steel Tanks

For the lump sum of $

1-13 26 42 11 Bolted Tank Submerged Galvanic Anode Cathodic Protection System

For the lump sum of $

1-14 26 42 12 Buried Galvanic Anode Cathodic Protection and Corrosion Monitoring Systems

For the lump sum of $

1-15 31 02 10 Water for Dust Abatement 5,600 M(1,000) gal

1-16 31 02 30 Dust Palliative 58,600 lin ft $ $

1-17 31 11 00 Clearing and Grubbing For the lump sum of $

1-18 31 14 10 Stripping, Stockpiling, and Placement

For the lump sum of $

1-19 31 23 11 Common Excavation for Structures

29,500 yd3 $ $

1-20 31 23 11 Backfill about Structures 16,600 yd3 $ $

1-21 31 23 11 Compacting Backfill about Structures

16,600 yd3 $ $

1-22 31 23 22 Mobilization of Trench Box For the lump sum of $

1-23 31 23 22 Use of Trench Box 2,580 lin ft $ $

1-24 31 31 30 Soil-Applied Herbicide 45,500 yd2 $ $

1-25 31 37 00 Riprap 77 yd3 $ $

1-26 32 15 10 Gravel Surfacing 5,600 yd3 $ $

1-27 32 15 10 Black Hat Tank Access Road Excavation

2,100 yd3 $ $

San Juan Lateral – Navajo Code Talkers Sublateral – Reaches 12.1 & 12.2 Solicitation No. 140R4021R0009

Revised B - 3

PRICE SCHEDULE 1 (Reach 12.1)

CLIN Section Supplies or Services Quantity and Unit

Unit Price Amount

1-28 32 31 10 Chain Link Fence 1,065 lin ft $ $

1-29 32 92 20 Seeding and Soil Amendment 137 ac $ $

1-30 33 05 21 Bored Utility Crossing – Sta.

121048+60 to Sta. 121049+70

110 lin ft $ $

1-31 33 05 21 Bored Utility Crossing – Sta.

121068+17 to Sta. 121068+85

68 lin ft $ $

1-32 33 05 21 Bored Utility Crossing – Sta.

121502+90 to Sta. 121504+00

110 lin ft $ $

1-33 33 05 22 Horizontal Directional Drilling

– Sta. 121198+77

1,060 lin ft $ $

1-34 33 05 22 Horizontal Directional Drilling

– Sta. 121452+94

940 lin ft $ $

1-35 33 05 22 Horizontal Directional Drilling

– Sta. 121573+29

1,270 lin ft $ $

1-36 33 11 10 24-Inch Line Pipe 25,392 lin ft $ $

1-37 33 11 10 30-Inch Line Pipe 33,505 lin ft $ $

1-38 33 11 10 Repair Kits For the lump sum of $

1-39 33 11 10 Filling and Testing Pipe 1,900,000 gal $ $

1-40 33 12 10 3-Inch Diameter Air Valve Assemblies –Class 150

2 ea $ $

1-41 33 12 10 3-Inch Diameter Air Valve Assemblies – Class 300

18 ea $ $

1-42 33 12 10 6-Inch Diameter Blowoffs – Class 150

2 ea $ $

1-43 33 12 10 6-Inch Diameter Blowoffs – Class 250

17 ea $ $

1-44 33 12 10 24-Inch Sectionalizing Valve Assemblies – Class 250B

3 ea $ $

1-45 33 12 10 24-Inch Sectionalizing Valve Assemblies – Class 350B

1 ea $ $

San Juan Lateral – Navajo Code Talkers Sublateral – Reaches 12.1 & 12.2 Solicitation No. 140R4021R0009

Revised B - 4

PRICE SCHEDULE 1 (Reach 12.1)

CLIN Section Supplies or Services Quantity and Unit

Unit Price Amount

1-46 33 12 10 Line Pipe Sampling Stations 4 ea $ $

1-47 33 16 00 Black Hat Tank For the lump sum of $

1-48 33 82 23 Fiber Optic Cable 62,000 lin ft $ $

1-49 35 21 95 Steel Manifold Piping For the lump sum of $

1-50 35 22 15 Valves and Equipment For the lump sum of $

1-50a 35 42 35 Wash Crossing Sta. 121205+48 For the lump sum of $

1-51 35 42 35 Wash Crossing Sta. 121388+34 For the lump sum of $

1-52 35 42 35 Wash Crossing Sta. 121466+07 For the lump sum of $

TOTAL FOR PRICE SCHEDULE 1(Reach 12.1) $_________________

San Juan Lateral – Navajo Code Talkers Sublateral – Reaches 12.1 & 12.2 Solicitation No. 140R4021R0009

Revised B - 5

PRICE SCHEDULE 2 (Reach 12.2)

CLIN Section Supplies or Services Quantity and Unit

Unit Price Amount

2-1 WBR

1452.232-81

Mobilization and Preparatory Work

For the lump sum of $

2-2 01 31 30 Contract Document Management System

For the lump sum of $

2-3 01 33 26 Electrical Drawings and Data For the lump sum of $

2-3a 01 55 20 Traffic Control Barriers 1,575 lin ft $ $

2-4 01 56 15 Protection of Existing Utilities For the lump sum of $

2-5 25 00 01 System Control and Monitoring For the lump sum of $

2-6 26 05 02 Complete Electrical System For the lump sum of $

2-7 26 05 33 2-inch HDPE Conduit 22,838 lin ft $ $

2-8 26 42 10 Submerged Galvanic Anode Cathodic Protection System for Welded Steel Tanks

For the lump sum of $

2-9 26 42 11 Bolted Tank Submerged Galvanic Anode Cathodic Protection System

For the lump sum of $

2-10 26 42 12 Buried Galvanic Anode Cathodic Protection and Corrosion Monitoring Systems

For the lump sum of $

2-11 31 02 10 Water for Dust Abatement 2,400 M(1,000) gal

2-12 31 02 30 Dust Palliative 23,110 lin ft $ $

2-13 31 11 00 Clearing and Grubbing For the lump sum of $

2-14 31 14 10 Stripping, Stockpiling, and Placement

For the lump sum of $

2-15 31 23 11 Common Excavation for Structures

27 yd3 $ $

2-16 31 23 11 Backfill about Structures 238 yd3 $ $

2-17 31 23 11 Compacting Backfill about Structures

238 yd3 $ $

San Juan Lateral – Navajo Code Talkers Sublateral – Reaches 12.1 & 12.2 Solicitation No. 140R4021R0009

Revised B - 6

PRICE SCHEDULE 2 (Reach 12.2)

CLIN Section Supplies or Services Quantity and Unit

Unit Price Amount

2-18 31 23 22 Mobilization of Trench Box For the lump sum of $

2-19 31 23 22 Use of Trench Box 5,023 lin ft $ $

2-20 31 31 30 Soil-Applied Herbicide 19,530 yd2 $ $

2-21 32 15 10 Gravel Surfacing 660 yd3 $ $

2-22 32 15 10 McKinley Surge Tank Access Road Excavation

350 yd3 $ $

2-23 32 31 10 Chain Link Fence 202 lin ft $ $

2-24 32 92 20 Seeding and Soil Amendment 47 ac $ $

2-25 33 05 22 Horizontal Directional Drilling

– Sta. 122033+73

1,279 lin ft $ $

2-26 33 05 22 Horizontal Direction Drilling – Sta. 122159+75

1,045 lin ft $ $

2-27 33 05 22 Horizontal Directional Drilling

– Sta. 122220+20

1,876 lin ft $ $

2-28 33 05 22 Horizontal Directional Drilling

– Sta. 122260+13

1,962 lin ft $ $

2-29 33 05 23 Open Cut Railroad Crossing 115 lin ft $ $

2-30 33 11 10 24-Inch Line Pipe 21,323 lin ft $ $

2-31 33 11 10 Steep Line Pipe 1,159 lin ft $ $

2-32 33 11 10 Combined 24-Inch and 24DR32.5 HDPE Drain Pipe

100 lin ft $ $

2-33 33 11 10 Combined 24-Inch and 16DR32.5 HDPE Drain Pipe

723 lin ft $ $

2-34 33 11 10 Repair Kits For the lump sum of $

2-35 33 11 10 Filling and Testing Pipe 700,000 gal $ $

2-36 33 12 10 2-Inch Diameter Air Valve Assemblies – Class 150

11 ea $ $

2-37 33 12 10 2-Inch Diameter Air Valve Assemblies – Class 300

8 ea $ $

San Juan Lateral – Navajo Code Talkers Sublateral – Reaches 12.1 & 12.2 Solicitation No. 140R4021R0009

Revised B - 7

PRICE SCHEDULE 2 (Reach 12.2)

CLIN Section Supplies or Services Quantity and Unit

Unit Price Amount

2-38 33 12 10 6-Inch Diameter Blowoffs – Class 150

7 ea $ $

2-39 33 12 10 6-Inch Diameter Blowoffs – Class 250

5 ea $ $

2-40 33 12 10 24-Inch Sectionalizing Valve Assemblies – Class 250B

2 ea $ $

2-41 33 12 10 Line Pipe Sampling Stations 1 ea $ $

2-42 33 16 00 McKinley Surge Tank For the lump sum of $

2-43 33 33 19 Baffled Outlet For the lump sum of $

2-44 33 42 30 24-Inch Diameter Corrugated Metal Culverts

40 lin ft $ $

2-45 33 82 23 Fiber Optic Cable 29,000 lin ft $ $

2-46 35 21 95 Steel Manifold Piping For the lump sum of $

2-47 35 22 15 Valves and Equipment For the lump sum of $

2-47a 35 42 35 Wash Crossing Sta. 122022+84 For the lump sum of $

2-48 35 42 35 Wash Crossing Sta. 122107+01 For the lump sum of $

TOTAL FOR PRICE SCHEDULE 2 (Reach 12.2) $_________________

END OF SECTION

San Juan Lateral – Navajo Code Talkers Sublateral – Reaches 12.1 & 12.2 Solicitation No. 140R4021R0009

Revised B - 8

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San Juan Lateral – Navajo Code Talkers Sublateral – Reaches 12.1 & 12.2 Solicitation No. 140R4021R0009

Use of Site

Revised 01 14 10 - 1

SECTION 01 14 10

USE OF SITE

PART 1 GENERAL

1.01 MEASUREMENT AND PAYMENT

A. Cost:

1. Include in prices offered in the Price Schedules for other items of work.

1.02 REFERENCE STANDARDS

A. Bureau of Reclamation (USBR)

1. Cleaning Manual-2012 Inspection and Cleaning Manual for

Equipment and Vehicles to Prevent the Spread of Invasive Species (Technical memorandum No. 86-68220-07-05) 2012 Edition. Available online at:

www.usbr.gov/mussels/prevention

1.03 SUBMITTALS

A. Submit the following in accordance with Section 01 33 00 – Submittals.

B. RSN 01 14 10-1, Land Use and Landscape Rehabilitation Plan:

1. For each Contractor use site on Government land.

a. Show use location and extent of impact. Uses include but are not limited to the following:

1) Buildings and service areas including offices, shops, warehouses, storage areas, fuel and oil storage areas, and fabrication yards in accordance with RSN 01 57 30-1.

2) Parking areas, temporary roads, and haul routes in accordance with

RSN 01 57 30-1.

3) Utilities including air, power, and water lines; fire hydrants; and compressor station.

4) First-aid and medical facilities.

5) Concrete, CLSM and aggregate plants. Show sizes, rated capacities, and general features of aggregate processing plant including transporting, storing, screening, and washing facilities;

concrete batching and mixing plant; and concrete conveying, placing, and concrete washouts.

http://www.usbr.gov/mussels/prevention

San Juan Lateral – Navajo Code Talkers Sublateral – Reaches 12.1 & 12.2 Solicitation No. 140R4021R0009

Revised 01 14 10 - 2

6) Areas for processing, storing, and disposing of waste materials from construction operations.

7) Temporary fences.

b. Describe methods to preserve, protect, and repair, vegetation (such as trees, shrubs, and grass) and other landscape features on or adjacent to jobsite, which are not to be removed and which do not interfere with work required under this contract. Include methods to mark work area limits, protect disturbed areas, and prevent erosion.

c. Describe methods to reseed disturbed areas in accordance with 32 92 20 – Seeding and Soil Amendment.

d. Describe methods to protect, and repair if damaged, existing improvements and utilities at or near jobsite.

e. Describe methods for removing temporary structures and facilities, cleanup, and rehabilitating site after completion of construction activities.

2. Submit revised drawings of changes in use of Government land made during design and erection stages or after use of Government land is in operation.

C. 01 14 10-2, Optional Onsite Security Plan:

1. Schedule for single individual to live on job site to provide full-time inhabitance including estimated or fixed dates.

2. Residence facilities, indicating:

a. If existing job trailer will be used or if a new trailer will be placed onsite.

b. Utilities for residence facility to be used and if modifications are required:

1) Electric.

2) Water.

3) Waste management.

c. Any changes required to existing site security lighting.

3. Map showing residence facility in relation to overall site, including plant, construction trailer, etc.

4. Other items not listed pertinent to additional site use.

1.04 PROJECT CONDITIONS

A. ROW or Easements as shown on drawings may be used for required construction facilities.

B. When private land is used for construction facilities, or other construction purposes, make necessary arrangements associated with use of private land.

San Juan Lateral – Navajo Code Talkers Sublateral – Reaches 12.1 & 12.2 Solicitation No. 140R4021R0009

Revised 01 14 10 - 3

1. Prior to using land outside of ROW, obtain cultural and environmental approvals in accordance with Section 01 31 19 – Project Management and Coordination.

C. Location, construction, operation, maintenance, and removal of construction facilities on Government land will be subject to approval of COR.

D. Do not interfere with work of other contractors, Navajo Nation or Government in vicinity, or with reservations made by Government for use of such land.

E. Housing for construction personnel will not be permitted. Optional (not required), limited Contractor-provided housing for on-site security team member will be permitted with approved RSN 01 14 10-2.

F. Blasting is not allowed.

G. Natural Conditions:

1. Ambient Temperature Range: -45 to 40 degrees C.

2. Relative Humidity: 0 to 90 percent.

3. Altitude: 7,000 feet.

4. Wind:

a. Maximum sustained: 45 knots.

b. Maximum gust: 60 knots.

PART 2 PRODUCTS

Not Used

PART 3 EXECUTION

3.01 CLEANING

A. Construction equipment:

1. Before bringing on site, clean construction equipment to remove dirt, vegetation, and other organic material to prevent introduction of noxious weeds, and invasive plant and animal species.

2. Contractor cleaning procedures shall result in equipment being cleaned as well or better than the procedures described in Cleaning Manual.

3. COR will inspect construction equipment following procedures described in Cleaning Manual before allowing equipment onsite.

San Juan Lateral – Navajo Code Talkers Sublateral – Reaches 12.1 & 12.2 Solicitation No. 140R4021R0009

Revised 01 14 10 - 4

3.02 RESTORATION

A. Restore Contractor use areas to pre-construction condition.

B. Restore temporary construction roads to original contours and make impassable to vehicular traffic when no longer required.

C. After completion of work, regrade and scarify Government land used for construction purposes and not required for completed installation so that surfaces blend with natural terrain and are in a condition that will facilitate revegetation, provide proper drainage, and prevent erosion.

San Juan Lateral – Navajo Code Talkers Sublateral – Reaches 12.1 & 12.2 Solicitation No. 140R4021R0009

Temporary Utilities Revised 01 51 00 - 1

SECTION 01 51 00

TEMPORARY UTILITIES

PART 1 GENERAL

1.01 MEASUREMENT AND PAYMENT

A. Cost:

1. Include in prices offered in the Price Schedules for other items of work.

1.02 REFERENCE STANDARDS

A. Institute of Electrical and Electronics Engineers (IEEE)

1. IEEE C2-12 National Electrical Safety Code (NESC)

1.03 TEMPORARY ELECTRICITY

A. Furnish electric power required for construction.

B. Furnish generators, transmission lines, distribution circuits, transformers, and other electrical equipment and facilities required for obtaining power and distributing power to points of use.

C. Comply with IEEE C2 clearances and spacing for temporary communications and supply lines.

1.04 TEMPORARY WATER

A. Contractor shall provide water required for construction purposes.

1. Determining source, obtaining permits, transporting, and paying fees.

B. Potential Sources:

1. Depending on availability the following entities may have potable water:

a. The City of Gallup:

1) Contact:

a) Gallup Joint Utilities P.O. Box 1270 Gallup, NM 87305 505-863-1289

2) Potable water for cleaning, filling and testing pipeline may only be available from November 31 to March 1.

San Juan Lateral – Navajo Code Talkers Sublateral – Reaches 12.1 & 12.2 Solicitation No. 140R4021R0009

Revised 01 51 00 - 2

b. Navajo Tribal Utility Authority (NTUA):

1) Contact:

a) Navajo Tribal Utility Authority P.O. Box 170 Fort Defiance, AZ 86504 928-729-6277

c. Navajo Nation Water Code Administration (NNWCA):

1) Contact:

a) Navajo Nation Water Code Administration Crownpoint Field Office Bldg. #2543, Chaco Blvd., P.O. Box 1936, Crownpoint, NM 87313 Monte Chee: Water Code Compliance Officer Website: www.watercode.navajo-nsn.gov/contact_us.html Email: mchee_71@yahoo.com Phone: 505-786-2395

b) Navajo Nation Water Code Administration P.O. Box 678 Ft. Defiance, AZ 86504 www.watercode.navajo-nsn.gov Melvin Badonie Telephone: 928-729-4132 Fax: 928-729-4421

d. Navajo Department of Water Resources (NDWR):

1) Contact:

a) Navajo Department of Water Resources NDWR Technical Operations & Maintenance Branch Director 928-729-4146

C. Use water which meets specified requirements for water used in testing, concrete, grouting, and other permanent work.

D. Provide means of conveying water to points of use.

E. Remove temporary equipment and facilities upon completion of work under this contract.

F. Measure water with Contractor supplied calibrated water meter. Meter calibration shall be traceable back to national measurement standards.

G. Calibrate water meter in accordance with national measurement standards.

http://www.watercode.navajo-nsn.gov/contact_us.html http://www.watercode.navajo-nsn.gov/

San Juan Lateral – Navajo Code Talkers Sublateral – Reaches 12.1 & 12.2 Solicitation No. 140R4021R0009

Revised 01 51 00 - 3

1.05 TELEPHONE

A. Cellular telephone service is available.

1.06 SANITARY FACILITIES

A. Restroom facilities will not be available to Contractor personnel.

B. Provide sanitary facilities.

PART 2 PRODUCTS

Not Used

PART 3 EXECUTION

3.01 REMOVAL

A. Remove temporary equipment and facilities upon completion of work under this contract.

San Juan Lateral – Navajo Code Talkers Sublateral – Reaches 12.1 & 12.2 Solicitation No. 140R4021R0009

Revised 01 51 00 - 4

San Juan Lateral – Navajo Code Talkers Sublateral – Reaches 12.1 & 12.2 Solicitation No. 140R4021R0009

Submerged Galvanic Anode Cathodic Protection System for Welded Steel Tanks

Revised 26 42 10 - 1

SECTION 26 42 10

SUBMERGED GALVANIC ANODE CATHODIC PROTECTION SYSTEM FOR

WELDED STEEL TANKS

PART 1 GENERAL

1.01 MEASUREMENT AND PAYMENT

A. Cost:

1. Include in prices offered in Price Schedule 1 (Reach 12.1) or Black Hat Tank as applicable.

2. Include in prices offered in Price Schedule 2 (Reach 12.2) or McKinley Surge

Tank and Vaults as applicable.

B. Submerged Galvanic Anode Cathodic Protection System for Welded Steel Tanks:

1. Black Hat Tank:

a. Payment: Lump sum price offered in Price Schedule 1 (Reach 12.1).

2. McKinley Surge Tank:

a. Payment: Lump sum price offered in Price Schedule 2 (Reach 12.2).

1.02 REFERENCE STANDARDS

A. ASTM International (ASTM)

1. ASTM B3-2018 Soft or Annealed Copper Wire

2. ASTM B843-2018 Magnesium Alloy Anodes for Cathodic

Protection

B. NACE International (NACE)

1. NACE SP0169-2013 Control of External Corrosion on

Underground or Submerged Metallic Piping Systems

2. NACE SP0196-2015 Galvanic Anode Cathodic Protection of Internal Submerged Surfaces of Steel Water Storage Tanks

3. NACE TM0497-2018 Measurement Techniques Related to Criteria for Cathodic Protection on Underground or Submerged Metallic Piping Systems

4. Peabody A.W., (2001) Peabody’s Control of Pipeline Corrosion, 2 P nd Edition, NACE.

San Juan Lateral – Navajo Code Talkers Sublateral – Reaches 12.1 & 12.2 Solicitation No. 140R4021R0009

Revised 26 42 10 - 2

C. National Electrical Manufacturer’s Association (NEMA)

1. NEMA 250-2018 Enclosures for Electrical Equipment

(1,000-Volts Maximum)

1.03 DEFINITIONS

A. Structure: Submerged interior surface of steel tanks or another metalwork being protected and monitored.

B. Bonded Dielectric Coating: Protective barrier coating system with high electrical resistivity bonded directly to underlying structure and acting to physically and electrically isolate metal from electrolyte.

C. Sacrificial Protection: Reduction of corrosion of metal in electrolyte by electrically coupling it to more anodic metal. Also called galvanic anode cathodic protection.

D. Electrolyte: Electrically conductive solution, such as soil or water. Terms for these specific conductive solutions may be substituted for the word “electrolyte” in these definitions.

E. Reference Electrode: Electrode with constant open circuit potential under similar conditions of measurement; used for measuring relative potentials of other electrodes (e.g. protected structures). Sometimes referred to as a reference half-cell. Copper/copper sulfate reference electrode (CSE) is often used.

F. Structure-to-Electrolyte Potential:

1. Also referred to as structure-to-water potentials.

2. Potential of structure in electrolyte as compared to potential of reference electrode contacting same electrolyte.

3. Static structure-to-electrolyte potential: Structure-to-electrolyte potential determined without any external current (e.g. prior to energizing cathodic protection system, and with no galvanic couple, pH cell, interference currents, or like present), or after such current source has been disconnected for extended time. Also referred to as native structure-to-electrolyte potential.

4. Uncorrected structure-to-electrolyte potential: Structure-to-electrolyte potential determined with cathodic protection system energized and cathodic protection current flowing. This potential is sometimes called protective potential and may contain significant IR drop error.

5. Polarized structure-to-electrolyte potential: Structure-to-electrolyte potential determined after cathodic protection system has been energized, but immediately after cathodic protection current is interrupted. Also referred to as “instant off” structure-to-electrolyte potential.

San Juan Lateral – Navajo Code Talkers Sublateral – Reaches 12.1 & 12.2 Solicitation No. 140R4021R0009

Revised 26 42 10 - 3

6. Polarization: Change from static or native potential as a result of current flow across electrode/electrolyte interface. Also considered the difference between polarized and native potentials.

1.04 QUALIFICATIONS

A. Cathodic Protection Technologist: Certified by NACE International.

1.05 QUALITY

A. Installation and testing shall be directed or performed by Cathodic Protection Technologist.

B. Manufacturer’s Standards: Comply with manufacturer’s recommendations and standards unless otherwise specified

C. NACE SP0169, NACE SP0196, and NACE TM0497 shall apply to any issues not specifically addressed by this specification.

1.06 SYSTEM DESCRIPTION

A. Provide cathodic protection and corrosion monitoring systems for:

1. Black Hat welded steel tank.

2. McKinley welded steel surge tank.

B. Provide corrosion-engineering services to furnish and install galvanic anode cathodic protection system:

1. Include electrical continuity bonds, anodes, and accessory equipment and features as directed in this specification or as otherwise indicated.

2. Designs, materials, installation and testing in accordance with NACE SP0169, NACE SP0196, NACE TM0497, and Peabody A.W., (2001).

C. Cathodic protection systems: Provide minimum service life of 20-years (system and all components):

1. Maintain on all locations of protected structure(s), with reference to copper/copper sulfate electrode placed in contact with electrolyte close to structure:

a. Polarized structure-to-electrolyte potential of at least -0.850 volts on structure having high quality bonded dielectric coating.

b. Alternately, at discretion of Reclamation, -0.100 volts of polarization if -0.850 volt criterion cannot be obtained due to extenuating circumstances (e.g. on bare or poorly coated structures).

c. Polarized potential at any point on a dielectrically coated structure not more negative than -1.100 volts.

San Juan Lateral – Navajo Code Talkers Sublateral – Reaches 12.1 & 12.2 Solicitation No. 140R4021R0009

Revised 26 42 10 - 4

D. Placement of anodes:

1. Provide adequate distribution of cathodic protection current.

2. Submerged and restrained in such a way as to:

a. Maintain sufficient anode material below the minimum normal operating water level.

b. Not place stress on the anode cables, which will be suitable for direct immersion.

1.07 SUBMITTALS

A. Submit the following in accordance with Section 01 33 00 – Submittals.

B. RSN 26 42 10-1, Certification and Data;

1. Copy of the Cathodic Protection Technologists' NACE International certification for personnel performing or directing the installation and testing of the corrosion monitoring system.

2. Preconstruction drawings detailing intended restraint of anodes.

3. Manufacturer’s data including catalog data sheets when available, including but not limited to:

a. Galvanic anodes.

b. Cables.

c. Cable identification labeling system.

d. Metallurgical bonding system.

e. Dielectric coating system for bonds.

f. Dielectric anode covering at anode hold points.

g. Anode junction box.

h. Shunts.

i. Variable resistors.

j. Coated wire rope.

k. Cable conduit.

l. Permanent reference electrodes.

C. RSN 26 42 10-2, Final Data:

1. As-built information and drawings, including:

a. Locations of anodes and restraints.

b. List of anode cable identifications in junction box.

San Juan Lateral – Navajo Code Talkers Sublateral – Reaches 12.1 & 12.2 Solicitation No. 140R4021R0009

Revised 26 42 10 - 5

2. Test data:

a. Test equipment and methods utilized.

b. Placement of reference electrode during each test.

c. Results of tests conducted.

PART 2 PRODUCTS

2.01 GENERAL

A. Installation details indicated on Specification Drawings 1695-D-60170, 1695-D-60172, 1695-D-60173, and 1695-D-60175.

2.02 CABLES

A. Conform to ASTM B3

B. Manufactured no more than 24-months prior to Notice to Proceed.

C. Cathodic Protection:

1. Single conductor: Stranded, plain, annealed copper cable.

2. Cable insulation:

a. Rated for 600 volts and direct immersion.

b. High molecular weight polyethylene (HMWPE) outer jacket with minimum thickness of 0.100-inch.

1) Black, unless otherwise noted.

3. Suitable lengths to permit installation from terminus to terminus (e.g. anode to junction box) free of splices and without stress.

D. Gauge:

1. No. 12 AWG or larger for structure cable (black insulation).

2. No. 12 AWG or larger for galvanic anodes (red insulation if available).

3. No. 14 AWG or larger for permanent reference electrodes (yellow insulation).

2.03 EXOTHERMIC METALLURGICAL BONDS

A. Exothermic metallurgical bond system by ThermOweld, 1140 North 129th East Ave., Tulsa, OK 74145; or equal, having the following essential characteristics:

1. Designed for:

a. Cathodic protection systems.

b. Metallic substrate material.

c. Bond orientation.

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2. Exothermic reaction produces molten copper, which produces permanent, high conductivity connection.

3. Uses special alloy to provide minimum heat effect on substrate material.

4. Current carrying capacity equal or better than conductor.

2.04 DIELECTRIC COATING FOR METALLURGICAL BONDS

A. Coat exposed weld nugget, exposed cable, or structure metal using Bitumastic 50 (Carboline) or equal.

B. Refer to Section 09 96 20 – Coatings.

2.05 GALVANIC ANODES

A. Extruded rod ProMag Standard Potential Magnesium Anode manufactured by Farwest Corrosion Control Co., 12029 Regentview Avenue, Downey, CA 90241; or equal, with the following essential characteristics:

1. Standard potential magnesium anode material specifically designed for cathodic protection systems and intended environment.

2. Magnesium rod anode material length and diameter specified in tank sections and shown on drawings 1695-D-60170 and 1695-D-60175.

3. Anode material meeting or exceeding the requirements of ASTM B843 and having minimum potential of -1.5 volts referenced to copper/copper sulfate reference electrode (CSE).

4. Contain mild steel core that extends essentially entire length of anode. Mild steel core centered within anode material and exposed on one end of anode for factory-made anode-to-cable connection.

B. Factory anode-to-cable connection, exposed mild steel core, and exposed copper cable potted in epoxy.

C. Silver-solder connection between anode cable and mild steel core.

D. Anode cable in accordance with cable requirements of this section.

2.06 ANODE JUNCTION BOX

A. Enclosed within NEMA 250, Type 3-R, lockable cabinet constructed of No. 16-gauge or thicker galvanized steel or fiberglass that is weatherproof, lockable, and vented for heat dissipation.

B. Specifically constructed for cathodic protection system installations.

C. Protected as required for permanency.

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D. Enough terminals (5 terminals minimum) with associated hardware for number and size of cables.

E. Equip with 0.01-ohm calibrated shunt for each anode.

F. Equip with 25-ohm, 12-watt variable resistors for each anode such that current flow of each anode can be adjusted as required within 125 percent of one another, without overheating variable resistor.

G. 1/4-inch minimum NEMA grade C phenolic panel with engraved terminal labels.

H. Solderless, pressure-type terminals.

I. Identified terminals.

J. Equip with combination bracket for pole or wall mounting.

2.07 ELECTRICAL CONDUIT

A. Galvanized conduit for anode and permanent reference electrode cables.

2.08 PERMANENT REFERENCE ELECTRODE

A. Copper/Copper Sulfate permanent reference electrode for use in freshwater service:

STAPERM Model CU-2-FW, manufactured by GMC Electrical, Inc., 280 N. Smith Ave, Corona CA 92880; or equal, having the following characteristics:

1. Rugged 1-inch plastic housing.

2. Plus, or minus 5 mV with 3.0 microamp load.

3. Minimum 20-year design life.

4. No. 14 AWG stranded copper cable with yellow HMWPE insulation of suitable length to extend from the reference electrode location to the junction box without splicing.

PART 3 EXECUTION

3.01 INSTALLATION OF GALVANIC ANODE CATHODIC PROTECTION

SYSTEMS

A. Installation and testing shall be performed or directed by Cathodic Protection Technologist.

B. Cable:

1. Inspect for insulation defects prior to and after installation:

a. Replace cables if insulation is damaged.

b. COR shall approve and inspect any necessary splices prior to installation.

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2. Install without kinks, stresses, and/or splices.

3. Run cable through rigid galvanized conduit once cable emerges from tank interior.

4. Protect cables inside tanks from damage and stresses.

5. Connect to junction box terminals with crimped, ring-tongue connectors.

6. Identify origin of cables terminating in an enclosure:

a. Cable identification as to the distinct anode in accordance with drawing 1695-D-60173

b. Printed letters on a shrinkable label attached to cables clearly visible within enclosure.

c. Encase printed labels in clear heat shrink tubing.

C. Structure cables:

1. One structure cable at anode junction box.

2. Connect cable to tank by exothermic metallurgical bond as shown in drawing

1695-D-60173:

a. Make exothermic metallurgical bond in accordance with bonding supply manufacturer's instructions.

b. Bonds shall not damage linings inside tank.

c. Test metallurgical bond integrity by striking side of weld nugget with

16--ounce hammer, in presence of COR.

d. Coat bare copper, weld nugget, and ferrous materials at metallurgical bonds with approved dielectric metallurgical bond coating:

1) Allow dielectric material to cure before repair of damaged structure coating or lining:

a) Repair dielectric coatings/linings in accordance with

Section 09 96 20 – Coatings.

3. Repair dielectric coatings/linings in accordance with Section 09 96 20 – Coatings.

D. Galvanic Anodes:

1. Installed vertically in tank as described in drawing1695-D-60170 and

1695-D-60175.

2. Black Hat Tank Anodes:

a. Anode installation details shown in drawing 1695-D-60170.

b. Install 20-foot long and 2-inch diameter anodes:

1) 12 anodes in circle approximately 9-feet 9-inches from vertical wall and 9-feet 9-inches from floor of tank.

2) With anodes evenly spaced approximately 19-feet 6 1/2-inches from each other.

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c. Install 3-foot long, 2-inch diameter stub array anodes:

1) 12 anodes in circle approximately 11-feet 6-inches from center of tank and 7-feet 6-inches from floor of tank.

2) With anodes evenly spaced approximately 5-feet 11 1/2-inches from each other.

d. Anodes hung from 3/16-inch diameter coated stainless steel wire support ropes at top and bottom of anodes such that bottoms of anodes are located approximately 4-feet 5-inches from bottom of tank.

e. Where wire support ropes hold anodes, the anodes shall be wrapped with a double thickness of dielectric barrier material to a width of 3-to 4-inches.

f. Wire ropes attached to tank sidewalls using welded brackets shown on drawing 1695-D-60170.

g. Anode cables:

1) Run anode cables to roof of tanks and out single port to junction box.

2) Run cables through galvanized conduit outside of tank to junction box.

3) Protect cables from damage inside tanks.

4) Do not connect anodes to structures at junction boxes; energizing systems only at time of testing.

5) Connect individual galvanic anodes to structure through individual calibrated shunts within junction box for current measurement.

6) Connect individual galvanic anodes to structure through variable resistors within junction box to allow for equalizing current from individual anodes.

3. McKinley Surge Tank Anodes:

a. Anode installation details shown in drawing 1695-D-60175.

b. Install 20-foot long and 2-inch diameter anode:

1) Vertically in center of tank and 4-feet from floor of tank.

c. Anode hung from 3/16-inch diameter coated stainless steel wire support ropes at top and bottom of anode such that bottom of anode is located approximately 4-feet from bottom of tank.

d. Where wire support ropes hold anode, the anode shall be wrapped with a double thickness of dielectric barrier material to a width of 3- to 4-inches.

e. Wire ropes attached to tank sidewalls using welded brackets shown on drawing 1695-D-60170.

f. Anode cable:

1) Run anode cable to roof of tank and directly connect cable to tank wall.

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E. Permanent Reference Electrodes:

1. Install 2 permanent copper/copper sulfate reference electrodes in water storage tank.

2. Installation:

a. Reference electrodes placed on opposite sides of tank.

b. Reference electrodes installed on bottom anode-to-tank wall support rope with dielectric tape and non-metallic cable ties.

c. Protect reference electrode cable from damage inside tank.

d. Run reference electrode cables to roof of tanks and out single port with anode cables to junction box.

e. Terminate reference electrode cables in junction box.

F. Junction Box:

1. Locations:

a. Against or mounted to outside tank wall.

b. Minimum 4-feet from ground level.

2. Contain the following cables:

a. Current carrying cable from the protected structure.

b. Current carrying cable from each anode terminating in junction box.

c. Cable from the protected structure for determining structure-to-water potentials.

d. Reference electrode cables for water storage tanks.

3. Installation details shown on drawing 1695-D-60172

3.02 CONTRACTOR FIELD QUALITY TESTING

A. Include energizing, adjusting, and testing cathodic protection systems.

B. Performed in presence of COR.

C. Inform COR of date, time, and tests to be performed at least 5 working days prior to testing.

D. Testing equipment:

1. Portable Voltmeter: Minimum input impedance of 10 megohms and capable of measuring DC voltages between plus or minus 0.1 millivolt to plus or minus 100-volts.

2. Portable Cu/CuSO4 reference electrode.

E. Record and report readings with final test data submittal.

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F. Testing shall be conducted in least 2 testing cycles:

1. First testing cycle:

a. Prior to energizing system.

1) Junction box integrity:

a) Determine voltage difference between structure cables within junction box enclosure.

2) Measure potential difference between permanent copper/copper sulfate reference electrodes and portable copper/copper sulfate reference electrode:

a) Potential: 0.00 plus or minus 5 mV.

3) Measure potential difference between permanent copper/copper sulfate reference electrodes in each tank:

a) Potential: 0.00 plus or minus 5 mV.

4) Measure static structure-to-water potentials of the submerged wall and floor:

a) Place portable reference electrode as close to submerged surface as possible for structure-to-water potential measurements.

b) Measure at following locations on tank surface (dependent on accessibility):

i. Bottom.

ii. Middle.

iii. Just below surface level.

iv. Various locations around tank.

v. Bottom center.

c) Using each permanent reference electrode in the water storage tank.

b. After energizing system:

1) Determination of protective (uncorrected) and polarized structure-to-water potentials in accordance with capacity requirements of this Section:

a) Place portable reference electrode as close to submerged metalwork as possible for structure-to-water potential measurements.

b) Measure at following locations on tank surface (dependent on accessibility):

i. Bottom.

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ii. Middle.

iii. Just below surface level.

iv. Various locations around tank.

v. Bottom center.

2) Determination of current output of each individual anode in junction box.

3) Adjustment of variable resistor setting for each anode as required to obtain required balance of current output and potential requirements.

2. Second and subsequent testing cycles:

a. Time between testing: 30- to 60-days.

b. Cathodic protection system shall not be adjusted between testing cycles.

c. Repeat testing required after energizing system during first testing cycle.

d. If testing cycle data indicates cathodic protection system requires adjustment to meet requirements, adjust cathodic protection system and conduct subsequent testing cycles within 30- to 60-days.

G. Troubleshoot and correct any problems determined by COR.

H. Submit final data after last testing cycle when performance criteria have been met and no further adjustments are needed.

I. After reviewing submittal, Government may require additional testing cycles, adjustments, and re-submittal to determine if cathodic protection system conforms to requirements.

San Juan Lateral – Navajo Code Talkers Sublateral – Reaches 12.1 & 12.2 Solicitation No. 140R4021R0009

Submerged Galvanic Anode Corrosion Protection System for Bolted Tanks Revised 26 42 11 - 1

SECTION 26 42 11

SUBMERGED GALVANIC ANODE CATHODIC PROTECTION SYSTEM FOR

BOLTED TANKS

PART 1 GENERAL

1.01 MEASUREMENT AND PAYMENT

A. Cost:

1. Include in prices offered in Price Schedule 1 (Reach 12.1) or Black Hat Tank as applicable.

2. Include in prices offered in Price Schedule 2 (Reach 12.2) or McKinley Surge

Tank and Vaults as applicable.

B. Bolted Tank Submerged Galvanic Anode Cathodic Protection System:

1. Black Hat Tank:

a. Payment: Lump sum price offered in Price Schedule 1 (Reach 12.1).

2. McKinley Surge Tank:

a. Payment: Lump sum price offered in Price Schedule 2 (Reach 12.2).

1.02 REFERENCE STANDARDS

A. ASTM International (ASTM)

1. ASTM B3-2018 Soft or Annealed Copper Wire

2. ASTM B843-2018 Magnesium Alloy Anodes for Cathodic

Protection

B. NACE International (NACE)

1. NACE SP0169-2013 Control of External Corrosion on

Underground or Submerged Metallic Piping Systems

2. NACE SP0196-2015 Galvanic Anode Cathodic Protection of Internal Submerged Surfaces of Steel Water Storage Tanks

3. NACE TM0497-2018 Measurement Techniques Related to Criteria for Cathodic Protection on Underground or Submerged Metallic Piping Systems

4. Peabody A.W., (2001) Peabody’s Control of Pipeline Corrosion, 2nd Edition, NACE

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1.03 DEFINITIONS

A. Structure: Submerged surface of bolted steel tank interior or another metalwork being protected and monitored.

B. Bonded Dielectric Coating: protective barrier coating system with high electrical resistivity bonded directly to underlying structure and acting to physically and electrically isolate metal from electrolyte.

C. Sacrificial Protection: Reduction of corrosion of metal in electrolyte by electrically coupling to more anodic metal. Also called galvanic anode cathodic protection.

D. Electrolyte: Electrically conductive solution, such as soil or water. Terms for these specific conductive solutions may be substituted for word “electrolyte” in these definitions.

E. Reference Electrode: Electrode whose open circuit potential is constant under similar conditions of measurement; used for measuring relative potentials of other electrodes (e.g. protected structures). Sometimes referred to as reference half-cell. Copper/copper sulfate reference electrode (CSE) is often used.

F. Structure-to-Electrolyte Potential:

1. Also referred to as structure-to-soil, pipe-to-soil, and structure-to-water potentials.

2. Potential of structure in electrolyte as compared to potential of reference electrode making contact with same electrolyte.

3. Static structure-to-electrolyte potential: Structure-to-electrolyte potential determined without external current (e.g. prior to energizing cathodic protection system, and with no galvanic couple, pH cell, interference currents, or like present), or after such current source has been disconnected for extended time.

Also referred to as native structure-to-electrolyte potential.

4. Uncorrected structure-to-electrolyte potential: Structure-to-electrolyte potential determined with cathodic protection system energized and cathodic protection current flowing. Sometimes called protective potential and may contain significant IR drop error.

5. Polarized structure-to-electrolyte potential: Structure-to-electrolyte potential determined after cathodic protection system has been energized, but immediately after cathodic protection current is interrupted. Also referred to as “instant off” structure-to-electrolyte potential.

6. Polarization: Change from static or native potential as result of current flow across electrode/electrolyte interface. Also considered difference between polarized and native potentials.

1.04 QUALIFICATIONS

A. Cathodic Protection Specialist: Certified by NACE International.

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1.05 QUALITY

A. Design, installation, and testing: Directed or performed by Cathodic Protection Specialist. Other qualified individuals may assist testing personnel.

B. Manufacturer’s Standards: Comply with manufacturer’s recommendations and standards unless otherwise specified.

C. NACE SP0169, NACE SP0196, and NACE TM0497 applies to issues not addressed by this section.

1.06 SYSTEM DESCRIPTION

A. Provide cathodic protection and corrosion monitoring systems for:

1. Above-ground bolted tank interior coated walls and/or floor:

a. Do not apply cathodic protection to fused glass lined portions of bolted tank.

B. Provide corrosion-engineering services to design, furnish, install, and test galvanic anode cathodic protection system:

1. Include anodes and accessory equipment and features as directed in this section or as otherwise indicated.

2. Designs, materials, installation and testing in accordance with NACE SP0169, NACE SP0196, NACE TM0497, and Peabody A.W., (2001).

C. Cathodic protection systems:

1. Minimum service life of 20-years for system and components.

2. Maintain on locations of protected structure(s), with reference to copper/copper sulfate electrode placed in contact with electrolyte close to structure:

a. Polarized structure-to-electrolyte potential of at least -0.850-volts on structure having high quality bonded dielectric coating.

b. Alternately, at discretion of Reclamation -0.100 volts of polarization if -0.850 volt criterion cannot be obtained due to extenuating circumstances (e.g. on bare or poorly coated structures).

c. Polarized potential at any point on a dielectrically coated structure not more negative than -1.100 volts.

D. Placement of anodes:

1. Provide adequate distribution of cathodic protection current.

2. Submerged and restrained in such a way as to:

a. Maintain enough anode material below minimum normal operating water level.

b. Not place stress on anode cables, which will be suitable for direct immersion.

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1.07 SUBMITTALS

A. Submit the following in accordance with Section 01 33 00 – Submittals.

B. RSN 26 42 11-1, Certification, Design, and Manufacturer’s Data:

1. Copy of Cathodic Protection Specialists' NACE International certification for personnel performing or directing design, installation, and testing of corrosion monitoring system.

2. Cathodic Protection System Design including:

a. Design calculations.

b. Preconstruction drawings detailing anode placement and electrical connections.

3. Manufacturer’s data including catalog data sheets when available, including but not limited to:

a. Galvanic anodes.

b. Cables.

c. Metallurgical bonding system.

d. Dielectric coating system for bonds.

e. Associated installation materials.

C. RSN 26 42 11-2, Final Data:

1. As-built information and drawings, including:

a. Locations of anodes.

2. Test data:

a. Test equipment and methods utilized.

b. Placement of reference electrode during each test.

c. Results of tests conducted.

PART 2 PRODUCTS

2.01 GENERAL

A. Minimum cathodic protection service life: 20-years for system and components.

2.02 CABLES

A. Conform to ASTM B3

B. Manufactured no more than 24-months prior to Notice to Proceed.

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C. Cathodic Protection:

1. Single conductor: Stranded, plain, annealed copper cable.

2. Cable insulation:

a. Rated for 600-volts and direct immersion.

b. High molecular weight polyethylene (HMWPE) outer jacket with minimum thickness of 0.100-inch:

1) Black, unless otherwise noted.

3. Suitable lengths to permit installation from terminus to terminus free of splices and without stress.

D. Gauge:

1. No. 12 AWG or larger for galvanic anodes (red insulation if available).

2.03 EXOTHERMIC METALLURGICAL BONDS

A. Exothermic metallurgical bond system by ThermOweld, 1140 North 129th East Ave., Tulsa, OK 74145; or equal, having the following essential characteristics:

1. Designed for:

a. Cathodic protection systems.

b. Metallic substrate materials.

c. Bond orientation.

2. Exothermic reaction which produces permanent, high conductivity connection.

3. Uses special alloy to provide minimum heat effect on substrate material.

4. Current carrying capacity equal or better than conductor.

2.04 DIELECTRIC COATING FOR METALLURGICAL BONDS

A. Coat exposed weld nugget, exposed cable, or structure metal using Bitumastic 50 (Carboline) or equal.

B. Refer to Section 09 96 20 – Coatings.

2.05 GALVANIC ANODES

A. Extruded rod ProMag standard potential magnesium anode, manufactured by Farwest Corrosion Control Company, 12029 Regentview Avenue, Downey, CA 90241; or equal, with the following essential characteristics:

1. Standard potential magnesium anode material specifically designed for cathodic protection systems and intended environment.

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2. Anode material meeting or exceeding requirements of ASTM B843 and having minimum potential of -1.5 volts referenced to copper/copper sulfate reference electrode (CSE).

3. Contain mild steel core that extends essentially entire length of anode. Mild steel core shall be centered within anode material and exposed on one end of anode for factory made anode-to-cable connection.

B. Factory anode-to-cable connection, exposed mild steel core, and exposed copper cable potted in epoxy.

C. Silver-solder connection between anode cable and mild steel core.

D. Anode cable in accordance with cable requirements of this section.

PART 3 EXECUTION

3.01 INSTALLATION OF GALVANIC ANODE CATHODIC PROTECTION

SYSTEMS

A. Installation and testing shall be performed or directed by Cathodic Protection Specialist certified by NACE International.

B. Cable:

1. Inspect for insulation defects prior to and after installation:

a. Cables shall be replaced if insulation is damaged.

2. Install without kinks, stresses, and/or splices.

3. Protect cables inside tanks from damage and stresses.

C. Make exothermic metallurgical bond in accordance with bonding supply manufacturer's instructions:

a. Bonds shall not damage linings inside tank.

b. Test metallurgical bond integrity by striking side of weld nugget with

16-ounce hammer, in presence of COR.

c. Coat bare copper, weld nugget, and ferrous materials at metallurgical bonds with an approved dielectric metallurgical bond coating:

1) Allow dielectric material to cure before repair of damaged structure coating or lining:

a) Repair dielectric coatings/linings in accordance with

Section 09 96 20 – Coatings.

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D. Galvanic Anodes:

1. Located to provide adequate potential distribution to tank surface to meet polarization criteria requirements.

3.02…