5-2-MP26045-22236510 - Pre-Posting Addendum.pdf

Addendum #1 1 May 6, 2026

DIVISION OF FACILITIES CONSTRUCTION AND MANAGEMENT

DNR GSL MARINA WATER LINE REPLACEMENT GREAT SALT LAKE STATE PARK

PROJECT

DFCM PROJ. #22236510

CONTRACT #: 2470131

ADDENDUM NO. 1

May 6, 2026

Changes and/or Clarifications to the Technical Specifications of the Project Manual.

Item No. Change/Clarification

TS1 Specification 26 42 00 – GALVANIC CATHODIC PROTECTION

Add Specification 26 42 00 – Galvanic Cathodic Protection in its entirety

Changes and/or Clarifications to the Project Drawings of the Project Manual.

Item No. Change/Clarification

D1 C-600-01 – RECOMENDED CONSTRUCTION STAGING AND TRAFFIC

COTNROL CONSIDERATIONS

Delete RECOMMENDED CONSTRUCTION STAGING AND TRAFFIC CONTROL CONSIDERATIONS, Sheet C-600-01, in its entirety and replace with the attached

RECOMMENDED CONSTRUCTION STAGING AND TRAFFIC CONTROL

CONSIDERATIONS (Rev. 1), C-600-01.

Clarification – The table listing events and dates at The Great Saltair has been updated to reflect their 2026 event schedule and anticipated 2027 event schedule.

D2 C-600-04 – RECOMENDED CONSTRUCTION STAGING AND TRAFFIC

COTNROL CONSIDERATIONS

Delete RECOMMENDED CONSTRUCTION STAGING AND TRAFFIC CONTROL CONSIDERATIONS, Sheet C-600-04, in its entirety and replace with the attached

RECOMMENDED CONSTRUCTION STAGING AND TRAFFIC CONTROL

CONSIDERATIONS (Rev. 1), C-600-04.

Clarification – Revised the labels that state when the contractor may may shut down the east entrances to the Great Saltair.

Addendum #1 2 May 6, 2026

D3 M-100-01 – BOOSTER PUMP STATION MECHANICAL PLAN

Delete BOOSTER PUMP STATION MECHANICAL PLAN, Sheet M-100-01, in its entirety and replace with the attached BOOSTER PUMP STATION MECHANICAL PLAN (Rev. 1), M-100-01.

Clarification – Further information was added to the note describing that the PVC Conduit that is running underground from the chorine room to the tank includes the tubing for the Hypochlorite and Sample Pump. An additional note was added to call out the Residual Chlorine Treatment System and where the information regarding this system resides.

D4 M-100-03 – BOOSTER PUMP STATION MECHANICAL SECTIONS AND

DETAILS

Delete BOOSTER PUMP STATION MECHANICAL SECTIONS AND DETAILS, Sheet M-100-03, in its entirety and replace with the attached BOOSTER PUMP STATION MECHANICAL SECTIONS AND DETAILS (Rev. 1), M-100-03.

Clarification – Section A-A was revised to show that the residual chlorine treatment system skid will be floor mounted instead of wall mounted.

Please remember to acknowledge receipt of Addenda in your bid documents.

- END -

GALVANIC CATHODIC PROTECTION

26 42 00 - 1

SECTION 26 42 00 - GALVANIC CATHODIC PROTECTION

PART 1 GENERAL

1.1 WORK INCLUDED

A. This section covers the work necessary to furnish and install galvanic cathodic protection, test station facilities, electrical isolation, and joint bonding for electrical continuity on all metallic piping, complete.

B. The material and size of the specified galvanic anodes are provided on the Drawings.

1.2 DEFINITIONS

A. Ferrous Metal Pipe: Pipe made of steel or iron, or pipe containing steel or iron as a principal structural material, except reinforced concrete pipe.

B. Foreign-Owned: Buried pipe or cable not specifically owned or operated by the OWNER.

C. Lead, Lead Wire, Joint Bonds, Pipe Connecting Wires, Cable: Insulated copper conductor;

the same as wire.

D. Electrically Continuous Pipeline: A pipeline which has a linear electrical resistance equal to or less than the sum of the resistance of the pipe plus the maximum allowable bond resistance for each joint as specified in this section.

E. Electrical Isolation: The condition of being electrically isolated from other metallic structures (including, but not limited to, piping, reinforcement, casings) and the environment as defined in NACE Standard Practice SP0169.

F. 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 or “on” potential and may contain significant IR drop error.

G. 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.

1.3 REFERENCES AND STANDARDS

A. AMPP - Association for Materials Protection and Performance (formerly National

Association of Corrosion Engineers (NACE) International)

1.4 SUBMITTALS

A. Shop Drawings: Catalog cuts, laboratory report, and other information for products proposed for use.

26 42 00 - 2

B. Quality Assurance Submittals:

1. Manufacturers' Certificates of Compliance.

2. Field Test Reports.

1.5 QUALITY ASSURANCE

A. CONTRACTOR performed quality control testing shall include the following tests, which shall be performed as defined in this section.

1. Joint Bond Resistance test

2. Insulation Joint Testing

B. Connection of galvanic anodes, energizing and testing of cathodic protection system, and other tests defined under “Tests and Inspection” shall be performed by the ENGINEER unless specifically stated otherwise

PART 2 PRODUCTS

2.1 GENERAL

A. Like items of materials provided hereunder shall be the product of one manufacturer to achieve standardization for appearance, maintenance, and replacement.

B. The use of a manufacturer's name and model or catalog number is for establishing the standard of quality and general configuration desired only. Products of other manufacturers will be considered in accordance with the General Conditions.

C. Materials and workmanship as specified in this section shall be installed concurrently with pipe installation. Coordinate all work specified herein with related sections.

2.2 SUPPLIERS

A. Alternate suppliers will be considered, subject to approval of the ENGINEER. Location provided is that of the general office; contact these offices for information regarding the location of their representative nearest the project site.

1. Corrpro, Medina, OH

2. Farwest Corrosion Control, Gardena, CA

3. Mesa Products, Tulsa, OK

2.3 GALVANIC ANODES

A. High-Potential Magnesium Alloy (Prepackaged-Backfill Supplied):

1. Composition:

a. Aluminum: 0.01 percent maximum.

b. Manganese: 0.5 to 1.3 percent.

c. Zinc: 0.0

d. Silicon: 0.0

e. Copper: 0.02 percent maximum.

f. Nickel: 0.001 percent maximum.

g. Iron: 0.03 percent maximum.

h. Total Others: 0.05 percent each or 0.3 percent maximum, total.

26 42 00 - 3

i. Magnesium: Remainder.

2. Dimensions:

a. Bare Weight: 32 pounds (or as shown on the Drawings).

b. Bare Size: 5.5-inch Width by 5-inch Height by 20.5-inch Length.

3. Manufacturers and Products:

a. Dow; Galvomag.

b. Amax; Maxmag.

c. Approved equal.

B. Anode Backfill:

1. Composition:

a. Ground Hydrated Gypsum: 75 percent.

b. Powdered Wyoming Bentonite: 20 percent.

c. Anhydrous Sodium Sulfate: 5 percent.

2. Grain Size: 100 percent passing through a 20-mesh screen and 50 percent retained by a 100-mesh screen.

3. Mixture: Thoroughly mixed and firmly packaged around the galvanic anode within the cloth bag or cardboard tube by means of adequate vibration.

4. The quantity of backfill shall be sufficient to cover surfaces of the anode to a depth of

1 inch.

C. Anode Wire:

1. Wire: Furnish each anode with No. 12 AWG solid copper wire with THHN insulation, 10 feet long.

2. Wire-to-Anode Connection: Manufacturer’s standard. The anode connection shall be stronger than the wire.

2.4 ELECTRICAL CONTINUITY JOINT BONDS

A. General:

1. All joint bonds provided by pipe manufacturer or CONTRACTOR shall meet the following minimum requirements:

a. All connections shall be welded or soldered.

b. Mechanical or compression type connections will not be permitted.

c. Bonds and welds shall exhibit sufficient strength and flexibility to allow thermal movement of the pipe after pipe backfill without cracking or breakage.

d. Bond connections to pipe shall be with an ENGINEER approved welding method.

2. All installed bonds shall be insulated or coated copper with all exposed copper field coated to prevent galvanic corrosion of pipe.

B. Steel, Ductile or Cast Iron Pipe, External Joint Bonds:

1. Joint bonds required for all non-welded pipe joints.

2. Single-conductor, stranded copper wire with 600-volt HMWPE or THHN insulation.

Supply joint bonds complete with a formed copper sleeve on each end of the wire.

3. No. 2 AWG wires, 18 inches long min. 24 inches long max.

4. Quantity of joint bonds per pipe joint by pipe diameter shall be as defined below:

Bond Type One Bond Two Bonds Three Bonds

#2 AWG Wire Less than 8-inch dia. Less than 36-inches 36-inches or greater

26 42 00 - 4

5. Connection of wire joint bonds to pipe shall be with the thermite weld method using molds and cartridges as recommended by the welder manufacturer for bond type used.

6. Strap Bond:

a. Manufacturers:

(1) Erico Products Inc. (Cadweld), Cleveland, OH

(2) Continental Industries, Inc. (Thermo-Weld), Tulsa, OK.

(3) Approved Equal.

C. Flexible Coupling, Flanged Coupling Adapter, and Other Non-standard Joints:

1. Ductile Iron Pipe:

a. No. 2 AWG wires, 24 inches long, HMWPE or THHN insulation, with two 12-inch long THHN insulated No. 12 AWG wire pigtails or as specified on the drawings.

(1) Manufacturer:

(a) Erico Products Inc. (Cadweld), Cleveland, OH.

(b) Hoff Company, Denver, CO

(c) “Or-Equal”

2. Steel Pipe:

a. Solid copper strap, 1-1/4-inch wide by 1/16-inch thick, equivalent to 1/0 AWG wire, with five punched holes for thermite welding to the coupling follower rings, middle, ring, and pipe. Strap bond shall be fabricated for the length of the coupling with sufficient additional length for 1 inch of joint movement. Strap holes shall be sized for the thermite weld mold and shall provide for physical centering of the mold over the hole.

(1) Weld bonds to pipe with the thermite weld mold recommended by the bond manufacturer.

(2) Strap bond manufacturer:

(a) Erico Products Inc. (Cadweld), Cleveland, OH

(b) Continental Industries, Inc. (Thermo-Weld), Tulsa, OK.

(c) “Or-equal.”

b. At CONTRACTOR’s option, single-conductor 2 AWG stranded copper wire with

600-volt HMWPE insulation, 24 inches long, with two 12-inch-long HMWPE insulated 12 AWG pigtails.

(1) Manufacturer:

(a) Erico Products Inc. (Cadweld), Cleveland, OH

3. Bond Quantity per Joint: Provide the quantity of bonds per pipe diameter as defined below:

Bond Type Two Bonds Three Bonds Four Bonds

Copper Strap N/A 54-inches or less Over 54-inches

#2 AWG Wire N/A 54-inches or less Over 54-inches

4. Connection of wire or copper strap joint bonds to pipe shall be with the thermite weld method using molds and cartridges as recommended by the welder manufacturer for the bond type used.

26 42 00 - 5

D. Insulated Flexible Coupling Joints:

1. Only install joint bonds across insulated joint where specifically denoted on the plan drawings, if applicable.

2. Ductile Iron Pipe:

a. No. 8 AWG THHN or HMWPE wire, 18-inch long, with one 12-inch long

THHN insulated No. 12 AWG wire pigtail.

3. Steel Pipe:

a. Solid copper strap, 1-1/4-inch wide by 1/16-inch thick, equivalent to 1/0 AWG wire, with four punched holes for thermite welding to the coupling and pipe. Strap bond shall be fabricated for the length of the coupling with sufficient additional length for 1 inch of joint movement.

(1) Weld bonds to pipe with the thermite weld mold recommended by the bond manufacturer.

(2) Strap bond manufacturer:

(a) Erico Products Inc. (Cadweld), Cleveland, OH

(b) Continental Industries, Inc. (Thermo-Weld), Tulsa, OK.

(c) “Or-equal.”

E. Insulated Sleeve Coupling Joints:

1. Ductile Iron Pipe:

a. No. 8 AWG wire, 18-inch long, with one 12-inch long THHN insulated No. 12

AWG wire pigtail

(1) Manufacturer:

(a) Erico Products Inc. (Cadweld), Cleveland, OH.

(b) Hoff Company, Denver, CO

(c) “Or-Equal”

2. Steel Pipe:

a. Solid copper strap, 1-1/4-inch wide by 1/16-inch thick, equivalent to 1/0 AWG wire, with four punched holes for thermite welding to the coupling and pipe. Strap bond shall be fabricated for the length of the coupling with sufficient additional length for 1 inch of joint movement. Strap holes shall be sized for the thermite weld mold and shall provide for physical centering of the mold over the hole.

b. Strap bond manufacturer:

(1) Erico Products Inc. (Cadweld), Cleveland, OH

(2) Continental Industries, Inc. (Thermo-Weld), Tulsa, OK.

(3) “Or-equal.”

3. Bond Quantity per Joint: Provide the quantity of bonds per pipe diameter as defined below:

Bond Type One Bonds Two Bonds Three Bonds

Copper Strap Up to 36-inches 36-inches to 60-inches

Over 60-inches

#2 AWG Wire Up to 36-inches 36-inches to 60-inches

Over 60-inches

26 42 00 - 6

2.5 THERMITE WELD MATERIALS

1. Thermite weld materials consist of wire sleeves, welders, and weld cartridges according to the weld manufacturer's recommendations for each wire size and pipe or fitting size and material.

2. Welding materials and equipment shall be the product of a single manufacturer.

Interchanging materials of different manufacturers is not acceptable.

B. Molds: Graphite, as recommended by manufacturer for pipe and wire size. Ceramic “One-

Shot” molds are not acceptable.

C. Adapter Sleeves:

1. For No. 12 AWG and No. 2 AWG wires.

2. Prefabricated factory sleeve joint bonds or bond wires with formed sleeves made in the field are acceptable. Attach field-formed joint bonds sleeves with the appropriate size and type of hammer die furnished by the thermite weld manufacturer.

3. Extend wire conductor 1/8 inch beyond the end of the adapter sleeve.

D. Cartridges:

1. Steel: 15, 25, or 32 grams, as required for pipe wall thickness and bond wire size.

2. Cast and Ductile Iron: 32 grams, maximum, XF-19 Alloy, specifically for use on cast iron and ductile iron.

E. Welders and Cartridges: For attaching copper wire to pipe material:

Pipe Material Weld Type Cartridge

Size, Max.

No. 4 AWG Wire & Smaller

Steel HA, VS, HC 25 gm

Ductile or Cast Iron HB, VH, HE 45 gm

(XF-19)

No. 2 AWG Wire Joint Bonds & Larger

Steel FS 32 gm

Ductile or Cast Iron FC 32 gm

(XF-19)

F. Welding Materials Manufacturers:

1. nVent/Erico Products Inc. (Cadweld), Cleveland, OH.

2. Continental Industries, Inc. (Thermo-Weld), Tulsa, OK.

26 42 00 - 7

2.6 TEST STATIONS

A. Post Mounted (Hot-dipped Galvanized Steel Post):

1. Test Station Head: Type A, T, I, and F: Testox series 700 or 2000 series test head.

2. Terminal Block: Plastic with minimum 7 terminals. Terminal heads shall have special heads to keep them from turning or shall be easily accessible from both sides of the terminal block without requiring its removal. Terminal studs, washers, and nuts shall be stainless steel.

3. Mounting Post: 3-inch diameter by 6 foot long hot-dipped galvanized steel post.

4. Mounting Hardware: Conduit, straps, nipple, reducer, and hardware for mounting test station to the post as specified under CONDUIT, LOCKNUTS, AND STRAPS.

5. Manufacturers and Products: Testox 700 OR 2000 series test station as manufactured by Gerome Manufacturing, Uniontown, PA.

6. Mounting Post:

a. Rigid hot dipped galvanized steel conduit 2-inch diameter threaded at one end

(minimum), by 5-foot long or as required for installation.

b. PVC long radius sweep elbow, 1-inch diameter, for wire protection as shown on

Drawings.

B. Flush Mounted:

1. Test Box: Concrete body cast with a cast iron ring, with a minimum weight of 55 pounds and minimum dimensions of 8 inch inside diameter and 12 inches long. Furnish extensions as required to penetrate concrete surfaces by 4 inches minimum. Furnish with a 12-pound cast iron lid with the letters "TS" or words "Test Station" cast into the lid.

2. Manufacturer and Products: Brooks; Models 1RT or equal.

3. Flush Mount Test Station Terminal Board:

4. Test boards for terminating pipeline test leads and other test leads inside test boxes:

Plastic or glass reinforced 6-inch- by 10-inch- by 1/4-inch-thick laminate.

5. Furnish terminal block with 7 stainless steel studs, washers, and lock washers.

6. Shop fabricated as shown on the Drawings with engraved labels on terminal board.

2.7 TEST STATION WIRE

A. General: Conform to applicable requirements of NEMA WC 3-80, WC 5-73, and WC 7-88.

B. Pipe Test Wires: Single-conductor, No. 10 AWG wire, stranded copper with 600-volt THHN insulation. Color code insulation as specified.

C. Reference Electrode Wires: No. 14 minimum AWG wire single-conductor, stranded copper with 600-volt, THHN insulation. Color code insulation as specified. Wire length of 25 feet or as required for splice free insulation.

D. Galvanic Anode Header Wire: Single-conductor, No. 8 AWG or thicker wire only, stranded copper with 600-volt HMWPE insulation.

26 42 00 - 8

E. Insulation Color:

1. Pipeline Test Wires: White

2. Insulated Joints: Green - insulated side, White - protected side

3. Stationary Reference Cell: Yellow

4. Foreign Pipeline Wires: Blue (water) or Red (gas)

5. Casings: Orange

6. Anode and Anode Header Wires: Black

2.8 STATIONARY REFERENCE ELECTRODE

A. Prepackaged Copper-Copper Sulfate Reference Electrodes:

1. Reference Electrode: Permanent type suitable for direct burial with a minimum design life of 25 years.

2. Material: High impact ABS, ceramic with Moisture Retention Membrane.

3. Dimensions: 1.5-inch by 10.5-inch or 1-inch by 8-inch.

4. Wire: Minimum 14 AWG stranded copper wire with yellow, 600-volt, THHN insulation. The wire shall be attached to the electrode and insulated with the manufacturer's standard connection. Connection shall be stronger than the wire.

5. Backfill: As recommended by the reference electrode manufacturer.

6. Packaging: Furnish electrode packaged in a plastic or heavy paper bag of sufficient thickness to protect the electrode, backfill, and cloth bag during normal shipping and handling.

7. Manufacturers and Products:

a. Borin Manufacturing, Stelth 2 Series

b. MC Miller, IonX Permanent Reference Electrode

2.9 COATING REPAIR MATERIAL FOR PIPE AND FITTINGS

1. Complete coating repairs in accordance with recommendations of the pipe or fitting manufacturer.

2. Coat steel pipe with epoxy coating repair as specified.

3. Coat thermite weld connections to ductile or cast iron pipe with fast cure epoxy OR petrolatum wax tape, as specified under Wax Tape Coating System.

B. Epoxy Coating:

1. 100 percent solids, fast curing epoxy suitable for submerged or buried conditions.

2. Acceptable products and manufacturers or equal:

a. Aquata-poxy, American Chemical Corp., East Lake, OH.

b. Protal 7125 (low temperature), 7200, or 7300 Denso North American, Houston, TX.

c. TC 7010, Tapecoat, Evanston, IL.

d. 3M; ScotchKote 323.

e. Aquata-poxy, American Chemical Corp., East Lake, OH.

f. “Or-equal.”

C. Wax Tape Coating:

1. Do not use wax tape coating systems on vault piping, atmospherically exposed piping and appurtenances, or where subject to UV exposures.

26 42 00 - 9

2. All components of the wax tape coating system shall be from a single manufacturer as manufactured by Denso North American, Trenton, or equal.

2.10 INSULATING JOINTS

1. Insulating joints shall be dielectric unions, flanges, or couplings. The complete assembly shall have an ANSI rating equal to or higher than that of the joint and pipeline. All materials shall be resistant for the intended exposure, operating temperatures, and products in the pipeline.

B. Insulating Flanges:

1. Flange:

a. As specified in applicable pipe sections or in conformance with AWWA

C207, whichever is more stringent

b. Bolt holes may be oversized not more ¼ inch over nominal bolt diameter where required for insulating flange assembly.

2. Gaskets:

a. Full-face, Type E, G-10 Fiberglass with O-ring seal. Buried insulating flanges shall be full face gaskets only.

b. Complete assembly shall have an ANSI rating equal to the flanged joint.

c. Materials shall be resistant to intended chemical exposure, operating temperatures, and pressures in the pipeline.

3. Insulating Sleeves: Full-length Mylar or fiberglass reinforced epoxy

(NEMA G-10 grade).

4. Insulating Washers: Fiberglass reinforced epoxy (NEMA G-10 grade).]

5. Steel Washers: Plated, hot-rolled steel, 1/8-inch thick.

6. Manufacturers:

a. Pacific Seal, Inc., Burbank, CA.

b. Central Plastics Co., Shawnee, OK.

c. GPT Industries, Houston, TX

d. Advanced Products and Systems, Scott, LA

e. Approved Equal.

C. Insulating Couplings:

1. Dielectric Boot: Rubber boot suitable for immersion service, two boots required per insulating joint

2. Manufacturers:

a. Style IC400, Romac Industries

b. Style 39, Dresser Industries

D. Insulating Unions: O-ring sealed with molded and bonded insulating bushing to union body.

1. Manufacturer:

a. Central Plastics Co., Shawnee, OK.

b. Approved Equal.

E. Where AC interference from overhead power lines is likely to impact the pipeline, install

PCRs/SSDs across insulating joints to allow AC current to drain from the pipeline and not damage the IJ, while maintaining CP on the desired structure.

26 42 00 - 10

2.11 CONDUIT, LOCKNUTS, AND STRAPS

A. Outdoors, Exposed Conduit:

1. Rigid conduit shall be rigid galvanized steel.

2. Fittings, junction boxes, pull boxes, and outlet bodies shall be hot-dipped galvanized iron.

3. Locknuts, conduit clamps, and other miscellaneous hardware shall be hot dipped galvanized steel. Galvanized items shall be hot-dipped galvanized in accordance with

ASTM A153.

4. Conduit clamps shall be two-piece, malleable iron, one hole strap, and clamp back spacer, O.Z. Gedney 14-100G and 143G or similar, for mounting to surfaces with either lag bolts or concrete wedge anchors, as shown on the Drawings.

B. Buried Conduit:

1. Conduit and fittings shall be rigid electrical grade, PVC coated rigid steel.

2.12 WIRE SPLICE INSULATING KIT

A. Tap Splice: Tap splice insulating kit for the connection of the anode wire to the anode header wire shall be 3M Company Scotchcast 90-B1; Hexcel Kit No. 7K53; Raychem Corp.

Thermofit No. ASE-4, or equal.

B. In-Line Splice: Tap splice insulating kit for the connection of the anode wire to the anode header wire shall be 3M Company Scotchcast 82-A2; Hexcel Kit No. 7K32; Raychem

Corp. Thermofit No. ASE-4, or equal.

2.13 ANCILLARY MATERIALS

A. Wire Connectors: 1-piece, tin-plated crimp-on ring tongue connector as manufactured by Burndy Co. or Thomas and Betts.

B. Shunt: 0.01 ohm Holloway Type RS or Equal.

C. Compression Connectors:

1. For in-line, tap, and multi-splice, furnish "C" taps made of conductive wrought copper, sized to fit the wires being spliced.

2. Provide crimp tool and dies as recommended by the manufacturer for the wire and connector size.

3. Manufacturer:

a. Burndy; Type YC.

b. “Or-equal.”

D. Electrical Tape:

1. Linerless rubber high-voltage splicing tape and vinyl electrical tape suitable for moist and wet environments.

2. Manufacturer and Product:

a. 3M Products, Scotch 130 C.

b. 3M Products, Scotch 88.

26 42 00 - 11

PART 3 EXECUTION

3.1 GENERAL

A. The workmanship shall be of the highest grade and shall be in strict accordance with material manufacturer's instructions. Equipment or materials damaged in shipment or during installation shall be replaced.

B. Install prepackaged galvanic cathodic protection and joint bonding for electrical continuity on all buried metallic piping and appurtenances associated with the construction of metallic ductile iron piping.

C. Installation of prepackaged anodes to be performed in conjunction with pipeline trenching and installation as specified in other sections.

D. All materials and equipment associated with joint bonding, cathodic protection, insulating joints, and coatings, as shown and specified herein, shall be furnished and installed by the

CONTRACTOR. Any changes in design or method of installation of an item as specified shall be reviewed by the ENGINEER.

E. The CONTRACTOR shall coordinate the installation of the specified items with the

General Contractor or other subcontractors on the project such that installation of the items herein specified can be completed concurrently with pipeline installation. Items not installed before backfilling of the pipe shall be installed at the CONTRACTOR's sole expense.

F. The CONTRACTOR shall examine all Drawings and coordinate his work to avoid conflicts, errors, delays, and unnecessary interference with the construction of the facilities and to avoid duplication of the work such as excavation, filling, etc. In the event of any conflicts in the Specifications, the ENGINEER shall be consulted.

G. Whenever the requirements of the Specifications or Drawings exceed those of the codes or manufacturer's instructions, the requirements of the Specifications or Drawings shall prevail. Where a larger size or better grade of material or a higher standard of workmanship is required, the most stringent requirement shall apply.

3.2 STORAGE AND HANDLING

A. Store all packaged anodes, anode backfill, and associated materials off the ground and keep them dry at all times.

B. Protect materials against weather, condensation, and mechanical damage. Immediately remove from site all damaged anodes.

C. Anode backfill material that has become wet prior to installation will not be acceptable.

3.3 GALVANIC ANODE INSTALLATION

A. Install the quantity and locations of galvanic anodes as shown on the Drawings and as described in the Test Station Schedule.

B. Provide a minimum anode spacing of 2 feet from other unprotected pipelines, thrust blocks, or structures. Anode depth shall be not less than 5 feet below the finished

26 42 00 - 12 grade. Maintain 5 feet center-to-center separation distance from other anodes when multiple anodes are installed.

C. All galvanic anode ground beds are to be connected to each pipeline through a test station.

Direct connection to the pipeline will not be permitted.

D. After installation, flood each anode with a minimum of 5 gallons of water.

E. Bury anode wires a minimum of 36 inches below finish grade.

F. Thoroughly compact backfill around each anode to a point 1 foot above the anode.

3.4 PIPE JOINT BONDING

A. To form an electrically continuous pipeline and associated appurtenances, the joints of all buried steel and iron pipe, vault and manhole piping, fittings, and restrained joints shall be provided with joint bonds as specified herein, except joints specified to be threaded, welded, or insulated.

B. Mechanical pipe connections are not considered to provide electrical continuity and require joint bonds. All metallic components associated with appurtenances and fittings, including follower rings and retainer glands shall be electrically bonded to the piping system.

C. Install the quantity of joint bond wire assemblies on non-welded pipe as specified.

Pipe Size Number of Joint Bonds

Steel/Cast/Ductile Iron

Less than 8-inch diameter 1 per joint

8-inch to 36-inch diameter 2 per joint

Greater than 36-inch diameter 3 per joint

D. CONTRACTOR shall coordinate with pipe installer to connect bonds in advance of pipe installation, where feasible. Advance coordination and installation of bonds may provide improved access for making thermite weld connections. Integrity of bonds will be verified after pipe installation is completed.

E. Quantity of joint bonds for fittings and appurtenances shall be as shown on the Drawings.

F. Electrical connection of all wires to pipe and fittings shall be by the thermite weld process.

G. Each bonded joint shall be tested as specified under ELECTRICAL CONTINUITY

TESTING, this section.

26 42 00 - 13

3.5 TEST STATION INSTALLATION

A. The general location, type, and style of test stations shall be shown on the Schedules on

Drawings. The CONTRACTOR shall determine the location of the test stations based on actual site conditions and as approved by the ENGINEER.

B. CONTRACTOR shall maintain records showing actual pipeline stationing of test station wire connections to the pipe.

C. Records of actual pipeline stationing shall be provided to the ENGINEER prior to electrical continuity testing by ENGINEER.

D. Test stations shall be generally located as follows:

1. Install Type A test stations or other type test stations as specified on the Drawings.

2. Install Type I test stations at insulating flange locations specified on the Drawings.

3. Install Type F test stations at locations specified on the Drawings and at all crossings with other metallic foreign structures that are protected with cathodic protection or specified

4. Install a Type C test station at both ends of cased crossings, unless shown otherwise on the Drawings.

E. Test Station Wires

1. Test wires shall be attached to the pipe by the thermite weld method unless approved otherwise.

2. The wires from the test stations shall be buried a minimum of 36 inches below finished grade. Provide a 12-inch loop in wires to prevent them from being stressed or broken during backfilling operations.

3. Test wires within paved roadways and with less than 36-inches of ground cover shall be installed in rigid PVC-coated steel conduit, except when located under concrete floor slabs.

4. Make wire connections to test station terminals with crimp-on ring tongue terminals, except where solid wire is specified.

5. Wires to foreign-owned pipelines shall be attached by the pipeline owner. The

CONTRACTOR shall coordinate this work with the owner of the foreign pipeline before the pipe is excavated.

F. Test Station Locations

1. Locate post-mounted test stations directly over the pipe and, where possible, at protected locations such as structures, fences, manholes, power poles, or edges of cultivated land.

2. Locate flush-mounted test stations at the closest location to the pipeline, where approved by the ENGINEER, except in areas of heavy traffic conditions. Where heavy traffic conditions exist, offset the test stations to the side of the street.

3. All offset test stations shall protect the test wires with PVC coated rigid steel conduit from pipeline centerline to within 6-inches of test station as shown on the Drawings.

Do not connect rigid steel conduit to test station.

4. Mount flush mounted test stations in concrete pad or sidewalk with cast iron cover as shown on Drawings.

a. Place concrete box on top of compacted 3-inch base of pea gravel.

26 42 00 - 14

5. Locate post-mounted test stations directly over the pipe and at protected locations such as fences, road crossings, and edges of cultivated land.

G. Maintain sufficient slack in test wires to permit terminal block to extend 18-inch out of flush mounted test stations.

H. Where combined test stations are installed, for instance a Type A and a Type I, install all leads within one test station by only including the extra leads necessary.

1. For instance, in a combined Type A and Type I, all the same test leads required for a

Type A will be installed along with two (2) additional test wires on the insulated section of piping.

I. Installation

1. Post mounted test stations

a. Height shall be between 36 to 42 inches above grade

b. Buried steel posts shall be concrete encased as shown on the drawings

2. Flush mounted test stations

a. Place in concrete pad or sidewalk with cast iron cover as shown on

Drawings.

b. Place in concrete box on to of 3-inch base of compacted sand.

c. In unimproved areas provide blue “Carsonite” utility marker with yellow reflector on each side 1 foot from test box or as directed by the ENGINEER.

3.6 REFERENCE ELECTRODE INSTALLATION

A. Remove plastic or paper wrapper and place reference electrode within the pipeline trench excavation 6 inches below the centerline of the pipe in a vertical position or as required by manufacturer.

B. Install reference cell as required by manufacturer at the locations indicated on the Drawings.

1. Install centered between foreign pipelines and Owner’s pipeline at crossing locations as shown on Drawings.

2. Do not use lead wire in lowering reference cell.

3. Backfill hole with select native material in 6-inch layers and hand tamp each layer around anode.

4. Use only native soil for backfill; do not use sand.

5. Exercise care not to strike reference cell or lead wire with tamper.

C. Terminate reference electrode wire in test station on separate terminal.

3.7 THERMITE WELD WIRE CONNECTIONS

A. Use thermite weld method for electrical connection of copper wire to steel, ductile, and cast iron surfaces. Observe proper safety precautions, welding procedures, thermite weld material selection, and surface preparation recommended by the welder manufacturer.

Assure that the pipe or fitting wall thickness is of sufficient thickness that the thermite weld process will not damage the integrity of the pipe or fitting wall or protective lining.

26 42 00 - 15

B. Where necessary to protect pipe or other equipment adjacent to thermite welds, utilize weld blankets or other shielding methods.

C. Before the connection is made, the surface shall be cleaned to bare metal by making a 2-inch by 2-inch window in the coating, and then filing or grinding the surface with a vitrified wheel to produce a bright metal finish. Wire sleeves shall be installed on the ends of the wire before welding to the metal surface.

D. After the weld connection has cooled, remove slag, visually inspect, and physically test wire connection by tapping with a hammer; remove and replace any defective connections.

E. On pipe and fittings with dielectric linings, make the weld connection on the shop tab provided or on a thick metal section to minimize damage to the lining and coating. After the weld is made, coat the weld with coating repair material.

F. Coat each completed wire connection as specified, this section.

G. If the lining is damaged by welding, repair it in accordance with the lining applicator's recommendations.

3.8 WIRE INSULATION REPAIR

A. Splicing of wire will not be permitted except where specifically shown on the drawings and approved by the ENGINEER.

B. Splices or damage to the wire insulation shall be required by spirally wrapping with two coats of high-voltage rubber splicing tap and two layers of vinyl electrical tape.

C. Make wire splices with suitable sized compression connectors or mechanically secure and solder with rosin cored 50/50 solder.

3.9 ELECTRICAL ISOLATION

A. Piping shall be installed electrically isolated from electrical grounding, steel reinforcement, vault sleeves, uncoated metallic piping, electrical conduit, pipe supports, electrically actuated valves, electronic pressure sensors and other electrical gauges, and all structures / metallic components not intended to receive cathodic protection, unless stated otherwise.

B. Maintain as much physical separation as possible from other cathodically protected structures, minimum of two (2) feet.

C. Ensure cathodically protected structures are well coated at crossings with other cathodically protected structures.

3.10 INSULATED JOINTS

A. Install insulated joints to electrically isolate the pipelines from electronics, electrically grounded facilities, and where shown on the Drawings.

B. Align and install insulating joints according to the manufacturer's recommendations to avoid damaging insulating materials.

26 42 00 - 16

C. Install a Type I test station at each buried insulated joint.

D. The CONTRACTOR shall test each insulated joint for electrical insulation as specified this section. Defective insulating joints shall be repaired by the CONTRACTOR at his sole expense. All damaged or defective insulation parts shall be replaced.

E. Apply a wax tape coating to all buried insulating flange joints after electrical isolation has been verified. Wax tape coatings minimize future electrical shorts across the flanges once buried.

3.11 TRENCHING AND BACKFILL

A. General

1. Complete excavations and trenching regardless of the type, nature, or condition of materials encountered, and as required to accomplish specified construction to lines and grades shown.

2. CONTRACTOR shall complete all utility notifications prior to performing trenching and excavations work.

3. Take care to avoid damage to existing structures and utilities during excavating and trenching process. CONTRACTOR may modify location, where approved by the

ENGINEER, to minimize possible damage to existing structures. Trench shall be of uniform depth and width, level, smooth, and free of sharp objects.

B. Trench Depths:

1. Trench depths vary for conditions and requirements. Trench depths provided are minimum requirements. CONTRACTOR to meet minimum requirements or that required by local utilities, ordinances, or regulations, whichever is more stringent.

2. Minimum depths for cathodic protection or corrosion monitoring work shall be as defined herein or shown on the Drawings. If in conflict, the more stringent shall apply.

a. Pipeline Test wires, undeveloped 24-inches (conduit)

b. Pipeline Test wires, roadways 30-inches (conduit)

c. All other 30-inches

C. Safety

1. Slope, shore, or brace excavations and trenches in accordance with OSHA regulations as necessary to prevent caving during excavation in unstable material, or to protect adjacent structures, property, workers, and the public.

2. CONTRACTOR shall have sole responsibility for ensuring safety of trenches and conformance to OSHA trench safety requirements.

D. Backfill and Compaction

1. Backfill trench with excavated backfill materials, unless otherwise specified.

2. Compaction requirements shall be as specified for the pipeline or 90 percent compaction, whichever is more stringent. Backfill within 5 feet of roadways, paved areas, or other traffic areas shall be compacted to 95 percent.

3. Do not use backfill material of frozen or consolidated debris. Leave the trench with the excess backfill material neatly mounded, but not more than 4 inches

26 42 00 - 17 above the existing ground level, for the entire width of the trench in undeveloped areas.

4. Replace topsoil in developed, landscaped, or cultivated areas.

3.12 SURFACE RESTORATION

A. CONTRACTOR shall restore all existing surface improvements within the pipeline easement removed in the performance of this work.

B. CONTRACTOR to complete surface restoration as specified and shown on the

Drawings.

3.13 TESTS AND INSPECTION

1. CONTRACTOR shall correct all construction defects identified during testing.

2. Provide ENGINEER with 7 days advance notice of completion for ENGINEER acceptance testing.

3. CONTRACTOR required testing as defined herein shall be performed by a Corrosion

Expert, with qualifications as specified this section, who is an employee or subcontractor to the CONTRACTOR.

B. Electrical Continuity Testing:

1. General

a. Furnish all necessary equipment and materials and make all electrical connections to the pipe as required to test continuity of bonded joints.

b. Conduct a continuity test on all buried joints that are required to be bonded. Test the electrical continuity of joint bonds after the bonds are installed but before backfilling of the pipe.

c. Have Cathodic Protection Specialist monitor the tests of bonded joints.

d. The CONTRACTOR shall test completed joint bonds for electrical continuity using digital low resistance ohmmeter or by the Calculated Resistance Test Method at the

Contractor's option. The equipment and test procedures for the two methods are described herein.

C. Joint Bond Resistance Test:

1. General

a. The CONTRACTOR shall test completed joint bonds for electrical continuity using a digital low resistance ohmmeter.

b. Joint bond quality control test shall be performed on all bonded joints after the bonds are installed but before backfilling of the pipe.

Furnish all equipment and materials as required for test

2. Digital Low Resistance Ohmmeter Method:

a. Required Equipment and Materials:

(1) One Biddle Model 247001 digital low resistance ohmmeter or equal.

(2) One set of duplex helical current and potential handspikes, Biddle Model

No. 241001, cable length as required.

b. Test Procedure:

(1) Measure the resistance of joint bonds with the low resistance ohmmeter in accordance with the manufacturer's written instructions.

(2) Use the helical handspikes to contact the pipe on each side of the joint, without touching the thermite weld or the bond.

(3) Clean contact area to bright metal by filing or grinding and without any

26 42 00 - 18 surface rusting or oxidation.

(4) Record the measured joint bond resistance on the test form described herein.

(5) Repair any damaged pipe coating in accordance with WIRE

CONNECTIONS, this section.

3. Calculated Resistance Method:

a. Required Equipment and Materials:

(1) One DC ammeter (meter or clamp-on) with full-scale reading of 100 amperes and a minimum resolution of 1 ampere or a 100-ampere shunt with a voltmeter as specified herein.

(2) One high-resistance electronic voltmeter with a DC low range of 200 millivolts full scale to a dc high range of 20 volts full scale and capable of a minimum resolution of 1 millivolt (two voltmeters are required if a shunt is used).

(3) One knife switch, safety switch, or time-controlled relay suitable for test current.

(4) Two electrical probes for the voltmeter.

(5) Insulated wire suitable for carrying the test current, length as required.

(6) One DC power supply with a steady capacity of 50 amperes minimum;

storage batteries are not an acceptable power supply.

b. Test Procedure:

(1) Current wire connections shall be either tightly clamped or thermite welded to the pipe at the Contractor's option. Wire size shall be determined by the

CONTRACTOR and shall be sized for the test current and shall not exceed

1,000 feet in length.

(2) Apply a minimum direct current of 5015 amperes.

(3) Measure the voltage drop across each joint with a voltmeter by contacting the pipe on each side of the joint. Voltmeter connections to the bond wire or thermite welds will not be acceptable.

(4) Measure the current applied to the test span and the voltage drop across the joint simultaneously.

(5) Record the measured voltage drop and current for each joint of the test form described herein and calculate the bond resistance in accordance with the following formula:

R = E

I

Where:

R = Resistance of the joint bond.

E = Measured voltage drop across the joint, in volts.

I = Test current applied to the pipe test span, in amperes.

3. Joint Bond Acceptance:

a. Joint bond resistance shall be less than or equal to the maximum allowable bond resistance values shown in Table 1.

26 42 00 - 19

Table 1

Joint Type Max. Allowable Resistance (micro-Ohms)

One

Bond/Joint

Two

Bonds/Joint

Three

Bonds/Joint

No. 2 AWG wire (Steel) 162 108 81

No. 2 AWG wire (DIP) 185 123 93

Flexible Coupling 425 212 115

Copper Strap (12-inch) 64 43 32

Copper Strap (9-inch) 48 32 24

Coupling, 24” No. 2 AWG 212 142 106

Coupling, 24” Copper 128 85 64

Push-On or Mechanical --- 162 ---

Concrete Cylinder --- 100 ---

b. The CONTRACTOR shall replace any joint bond that exceeds the allowable resistance. Replacement joint bonds shall be retested for compliance with the specified bond resistance.

c. Any defective joint bond discovered during energizing and testing shall be located, excavated, repaired, and backfilled by the CONTRACTOR.

4. Test Records: Records shall be made of each bonded pipeline during the test and submitted to the ENGINEER. These records shall include:

a. Description and location of the pipeline tested.

b. Starting location and direction of test.

c. Date of test.

d. Joint type.

e. Test current and voltage drop across each joint and calculated bond resistance (Calculated Resistance Method only).

f. Measured joint bond resistance (Digital Low Resistance Ohmmeter method only).

g. Record test information on a form that includes information listed above.

D. Insulated Joint Testing:

1. Test each insulating joint after assembly with a GAS Electronics Model 601 insulator tester or equivalent instrument in accordance with the manufacturer's written instructions. Conduct test before burial and coating of buried insulating flanges.

2. CONTRACTOR to replace damaged or defective insulation parts identified during testing.

3. Electrical Isolation is defined as a condition of being electrically isolated from other metallic structures (including, but not limited to, other piping, concrete reinforcement, casings, and other structures not intended to be cathodically protected) and the environment as defined in NACE Standard Practice SP0169.

4. Construction Manager shall conduct additional insulating joint tests as required to ensure that insulating flanges are not electrically shorted by other equipment, electrical conduits, or incidental contact with concrete reinforcement during energizing and testing.

26 42 00 - 20

E. Final Electrical Continuity Test:

1. After the pipeline construction is completed and test stations have been installed, the

ENGINEER shall test the completed, non-welded sections of the pipeline for electrical continuity using the four-wire lineal pipe resistance test method, in order to verify joint bonding.

2. Test will be conducted with a minimum test current of 10 amperes using a portable rectifier or DC welder.

3. An electrically continuous pipeline will be defined as a pipe or section of pipe that has a linear electrical resistance equal to or less than the sum of the lineal resistance of the pipe plus the maximum allowable joint bond resistance for each joint within the test section as specified this section.

4. Each discontinuous section of pipe shall be retested after all continuity repairs are completed to demonstrate that the pipeline is electrically continuous.

F. Electrical Discontinuity Location:

1. If electrically discontinuous sections of pipe are detected during final continuity testing, the CONTRACTOR to locate and repair electrically discontinuous joint bonds.

2. Location of discontinuous joints bonds may be performed using a test method determined by the CONTRACTOR. Regardless of test method used to locate discontinuous joints, final acceptance of discontinuous sections shall be determined by the lineal pipe resistance method.

3. After all discontinuous joints are repaired, the repaired section shall have a resistance less than or equal to the calculated allowable lineal pipe resistance as determined by the initial final continuity testing.

4. Existing joint bonds damaged during excavation of the pipe for repairs or temporary wire connection shall be repaired by the CONTRACTOR.

5. Existing test stations shall be protected from damage. When damage occurs

CONTRACTOR shall complete repairs while the excavation is open. Undisclosed test station damage that requires repairs to be made after backfilling the excavation will be repaired at the CONTRACTOR sole expense.

6. ENGINEER shall conduct additional insulating joint tests as required to ensure that insulating flanges are not electrically shorted by other equipment or incidental contact with concrete reinforcement or other equipment during energizing and testing.

G. Testing:

1. Piping shall be installed electrically isolated from electrical grounding, steel reinforcement, vault sleeves, uncoated metallic piping, electrical conduit, pipe supports, electrically actuated valves, electronic pressure sensors and other electrical gauges, and all structures / metallic components not intended to receive cathodic protection, unless stated otherwise.

2. Test procedures shall be established to verify electrical isolation of pipe from other structures. Testing includes, but is not limited to, resistance testing, interrupted potential surveys to stationary reference cell, etc. to satisfactorily confirm electrical isolation.

3. CONTRACTOR to repair locations where pipe is not electrically isolated.

4. Electrical Isolation is defined as a condition of being electrically isolated from other metallic structures (including, but not limited to, other piping, concrete

26 42 00 - 21 reinforcement, casings, and other structures not intended to be cathodically protected) and the environment as defined in NACE Standard Practice SP0169.

5. ENGINEER shall conduct additional electrical isolation tests as required to assure the pipe is not electrically shorted by other equipment or incidental contact with concrete reinforcement or other equipment during energizing and testing.

H. Cathodic Protection System Energizing and Testing

1. Initial Survey: Conduct an initial potential survey at all test stations and measure the baseline (native) pipe-to-soil potential before connecting the anodes. Record GPS coordinates for each test station.

a. Resurvey the cathodic protection system at least 4 weeks after the initial energization to allow for the development of the cathodic polarization process.

Ensure the coupons have been installed for the minimum elapsed time as instructed by the coupon manufacturer. Measure CP On Potentials and CP Instant-

Off Potentials at all corrosion test stations.

b. Provide a minimum of 7 days advance notice to the ENGINEER before the cathodic protection activation will be performed to allow for coordination and observance of these tests.

2. Functional Testing:

a. Perform functional testing in presence of ENGINEER.

b. When construction of each cathodic protection station(s) is completed, notify

ENGINEER that anodes are ready to be connected.

3. Energizing and Testing:

a. General:

(1) Upon successful completion of functional testing, connect the galvanic anodes to the pipe through the shunt inside the test stations. Complete additional testing and adjustment to provide cathodic protection at all test points in accordance with NACE SP0169.

(2) Before beginning each day of testing, calibrate portable copper sulfate reference electrodes with respect to a master reference copper sulfate reference electrode.

(3) Record baseline potentials at all test stations.

(4) Record ON and OFF potentials at all test stations by temporarily disconnecting the galvanic anodes from the pipe at the test station being evaluated.

(5) Measure and record galvanic anode current at each test station using installed shunt.

(6) Measure the CP Native potentials of electrically grounded equipment inside all vaults and structures along the pipeline. Where two wires are attached to the same pipeline, measure and record the CP Native Potentials for both wires. If the potential measurements for the same pipeline differ by more than 5 millivolts, investigate the cause. and correct the issue until the potential measurement differs by less than 5 millivolts.

(7) At corrosion test stations constructed with buried copper/copper sulfate reference electrodes (i.e., stationary reference electrode) measure CP Native

Potentials of the pipeline using both the stationary reference electrode and a…