179_180_33 11 00.pdf

Navy - 16NME PSNS P447 DD4 & Pier 3 219001

SECTION 33 11 00

WATER UTILITY DISTRIBUTION PIPING

02/18

PART 1 GENERAL

1.1 REFERENCES

The publications listed below form a part of this specification to the extent referenced. The publications are referred to within the text by the basic designation only.

AMERICAN WATER WORKS ASSOCIATION (AWWA)

AWWA B300 (2010; Addenda 2011) Hypochlorites

AWWA B301 (2010) Liquid Chlorine

AWWA C104/A21.4 (2016) Cement-Mortar Lining for Ductile-Iron Pipe and Fittings for Water

AWWA C110/A21.10 (2012) Ductile-Iron and Gray-Iron Fittings for Water

AWWA C111/A21.11 (2017) Rubber-Gasket Joints for Ductile-Iron Pressure Pipe and Fittings

AWWA C115/A21.15 (2011) Flanged Ductile-Iron Pipe With Ductile-Iron or Gray-Iron Threaded Flanges

AWWA C151/A21.51 (2017) Ductile-Iron Pipe, Centrifugally Cast

AWWA C153/A21.53 (2011) Ductile-Iron Compact Fittings for Water Service

AWWA C213 (2015) Fusion-Bonded Epoxy Coating for the Interior and Exterior of Steel Water Pipelines

AWWA C509 (2015) Resilient-Seated Gate Valves for Water Supply Service

AWWA C511 (2017) Reduced-Pressure Principle Backflow Prevention Assembly

AWWA C515 (2015) Reduced-Wall, Resilient-Seated Gate Valves for Water Supply Service

AWWA C600 (2017) Installation of Ductile-Iron Mains and Their Appurtenances

AWWA C606 (2015) Grooved and Shouldered Joints

AWWA C651 (2014) Standard for Disinfecting Water Mains

SECTION 33 11 00 Page 1 February 27, 2020

AWWA C655 (2009) Field Dechlorination

AWWA C800 (2014) Underground Service Line Valves and Fittings

AWWA M41 (2009; 3rd Ed) Ductile-Iron Pipe and Fittings

AWWA M9 (2008; Errata 2013) Manual: Concrete Pressure Pipe

ASME INTERNATIONAL (ASME)

ASME B16.1 (2015) Gray Iron Pipe Flanges and Flanged Fittings Classes 25, 125, and 250

ASME B18.2.2 (2015) Nuts for General Applications:

Machine Screw Nuts, Hex, Square, Hex Flange, and Coupling Nuts (Inch Series)

ASME B18.5.2.1M (2006; R 2011) Metric Round Head Short Square Neck Bolts

ASME B18.5.2.2M (1982; R 2010) Metric Round Head Square Neck Bolts

ASME B31.1 (2016; Errata 2016) Power Piping

ASTM INTERNATIONAL (ASTM)

ASTM A276/A276M (2017) Standard Specification for Stainless Steel Bars and Shapes

ASTM A285/A285M (2017) Standard Specification for Pressure Vessel Plates, Carbon Steel, Low- and Intermediate-Tensile Strength

ASTM A307 (2014; E 2017) Standard Specification for Carbon Steel Bolts, Studs, and Threaded Rod 60 000 PSI Tensile Strength

ASTM A47/A47M (1999; R 2018; E 2018) Standard Specification for Ferritic Malleable Iron Castings

ASTM A536 (1984; R 2014) Standard Specification for Ductile Iron Castings

ASTM A563 (2015) Standard Specification for Carbon and Alloy Steel Nuts

ASTM D2000 (2018) Standard Classification System for Rubber Products in Automotive Applications

ASTM D4020 (2011) Ultra-High-Molecular-Weight Polyethylene Molding and Extrusion Materials

SECTION 33 11 00 Page 2 February 27, 2020

FOUNDATION FOR CROSS-CONNECTION CONTROL AND HYDRAULIC RESEARCH

(FCCCHR)

FCCCHR List (continuously updated) List of Approved Backflow Prevention Assemblies

FCCCHR Manual (10th Edition) Manual of Cross-Connection Control

MANUFACTURERS STANDARDIZATION SOCIETY OF THE VALVE AND FITTINGS

INDUSTRY (MSS)

MSS SP-58 (2009) Pipe Hangers and Supports - Materials, Design and Manufacture, Selection, Application, and Installation

MSS SP-69 (2003; Notice 2012) Pipe Hangers and Supports - Selection and Application (ANSI Approved American National Standard)

NSF INTERNATIONAL (NSF)

NSF 372 (2016) Drinking Water System Components - Lead Content

NSF/ANSI 14 (2017b) Plastics Piping System Components and Related Materials

NSF/ANSI 61 (2018) Drinking Water System Components - Health Effects

U.S. DEPARTMENT OF DEFENSE (DOD)

MIL-STD-101 (2014; Rev C) Color Code for Pipelines and for Compressed Gas Cylinders

U.S. GENERAL SERVICES ADMINISTRATION (GSA)

CID A-A-1689 (Rev B) Tape, Pressure-Sensitive Adhesive, (Plastic Film)

FED-STD-595 (Rev C; Notice 1) Colors Used in Government Procurement

1.2 DESIGN REQUIREMENTS

1.2.1 Water Distribution Mains

Provide Fresh Water (FW) and Saltwater (SW) distribution mains indicated of ductile-iron. Provide FW and SW main accessories, gate valves, and check valves as specified and where indicated.

1.3 DEFINITIONS

1.3.1 Water Transmission Mains

Water transmission mains include water piping having diameters greater than 14 inch, specific materials, methods of joining and any appurtenances deemed necessary for a satisfactory system.

SECTION 33 11 00 Page 3 February 27, 2020

1.3.2 Water Mains

Water mains include water piping having diameters 4 through 14 inch, specific materials, methods of joining and any appurtenances deemed necessary for a satisfactory system.

1.3.3 Water Service Lines

Water service lines include water piping from a water main to a building service at a point approximately 5 feet from building to ship-to-shore outlets, or the points indicated on the drawings, specific materials, methods of joining and any appurtenances deemed necessary for a satisfactory system.

1.4 SUBMITTALS

Government approval is required for submittals with a "G" designation;

submittals not having a "G" designation are for Contractor Quality Control approval. Submit the following in accordance with Section 01 33 00

SUBMITTAL PROCEDURES:

SD-01 Preconstruction Submittals

Connections

SD-03 Product Data

Pipe, Fittings, Joints and Couplings

Valves; G

Tapping Sleeves; G

Backflow Preventer; G

Disinfection Procedures; G

Hangers and Supports; G

Autofreeze Protection Bleed Valves

Ultra-High Molecular Weight Polyethylene; G

SD-06 Test Reports

Backflow Preventer Tests; G

Bacteriological Samples; G

Leakage Test

Hydrostatic Test

SD-07 Certificates

Pipe, Fittings, Joints and Couplings

Lining

SECTION 33 11 00 Page 4 February 27, 2020

Valves

Backflow Prevention Training Certificate

Backflow Tester Certification

Backflow Certificate

SD-08 Manufacturer's Instructions

Ductile-Iron Piping

1.5 QUALITY CONTROL

1.5.1 Regulatory Requirements

Comply with NSF/ANSI 14 or NSF/ANSI 61 and NSF 372 for materials for potable water systems; comply with lead content requirements for "lead-free" plumbing as defined by the U.S. Safe Drinking Water Act effective January 2014. Provide materials bearing the seal of the National Sanitation Foundation (NSF) for potable water service.

1.5.2 Qualifications

1.5.2.1 Backflow Preventers

1.5.2.1.1 Backflow Preventer Certificate

Certificate of Full Approval from FCCCHR List , University of Southern California, attesting that the design, size and make of each backflow preventer has satisfactorily passed the complete sequence of performance testing and evaluation for the respective level of approval. Certificate of Provisional Approval will not be acceptable.

1.5.2.1.1.1 Backflow Tester Certificate

Prior to testing, submit to the Contracting Officer certification issued by the State or local regulatory agency attesting that the backflow tester has successfully completed a certification course sponsored by the regulatory agency.

1.5.2.1.1.2 Backflow Prevention Training Certificate

Submit a certificate recognized by the State or local authority that states the Contractor has completed at least 10 hours of training in backflow preventer installations. The certificate must be current.

1.6 DELIVERY, STORAGE, AND HANDLING

1.6.1 Delivery and Storage

Inspect materials delivered to site for damage. Unload and store with minimum handling and in accordance with manufacturer's instructions.

Store materials on site in enclosures or under protective covering. Store jointing materials and rubber gaskets under cover out of direct sunlight.

Do not store materials directly on the ground. Keep inside of pipes, fittings, valves, and other accessories free of dirt and debris.

SECTION 33 11 00 Page 5 February 27, 2020

1.6.2 Handling

Handle pipe, fittings, valves, and other accessories in accordance with manufacturer's instructions and in a manner to ensure delivery in sound undamaged condition. Avoid injury to coatings and linings on pipe and fittings; make repairs if coatings or linings are damaged. Do not place other material, hooks, or pipe inside a pipe or fitting after the coating has been applied. Inspect the pipe for defects before installation.

Carry, do not drag pipe. Use of pinch bars and tongs for aligning or turning pipe will be permitted only on the bare ends of the pipe. Clean the interior of pipe and accessories of foreign matter before installation and keep them clean during installation by plugging. Replace defective material without additional expense to the Government. Store rubber gaskets, not immediately installed, under cover or out of direct sunlight.

Handle ductile iron pipe, fittings, and accessories in accordance with AWWA C600 and AWWA M41.

PART 2 PRODUCTS

2.1 MATERIALS

Provide all materials in accordance with AWWA C800 and as indicated herein. Provide valves and fittings with pressure ratings equivalent to the pressure ratings of the pipe.

2.1.1 Pipe, Fittings, Joints And Couplings

Submit manufacturer's standard drawings or catalog cuts. Include information concerning gaskets with submittal for joints and couplings.

2.1.1.1 Ductile-Iron Piping: Fresh Water (FW), Salt Water (SW)

2.1.1.1.1 Pipe and Fittings

Pipe, except flanged pipe, AWWA C151/A21.51 , Thickness Class 53. Flanged pipe, AWWA C115/A21.15 . Fittings, AWWA C110/A21.10 or AWWA C153/A21.53 .

Provide fittings with pressure ratings equivalent to that of the pipe.

Provide compatible pipe ends and fittings for the specified joints.

Provide cement-mortar lining, AWWA C104/A21.4 , standard thickness on pipe and fittings.

2.1.1.1.2 Joints and Jointing Material

Provide flanged joints unless indicated otherwise. Provide mechanical joints where indicated. Provide grooved type joints where indicated.

Provide insulating joints where indicated.

a. Mechanical Joints: Dimensional and material requirements for pipe ends, glands, bolts and nuts, and gaskets as recommended in

AWWA C111/A21.11 .

b. Flanged Joints: Bolts, nuts, and gaskets for flanged connections as recommended in Appendix A of AWWA C115/A21.15 . Provide AWWA C115/A21.15 ductile iron flanges and conform to ASME B16.1 , Class 125.

c. Insulating Joints: Designed to prevent metal-to-metal contact at the joint between adjacent sections of piping. Provide flanged type joint

SECTION 33 11 00 Page 6 February 27, 2020 matt.waller Cloud with insulating gasket, insulating bolt sleeves, and insulating washers. Provide full face dielectric type gaskets, as recommended in the Appendix to AWWA C115/A21.15 . Bolts and nuts, as recommended in the Appendix to AWWA C115/A21.15 .

d. Grooved Type Joints: Grooved pipe ends and couplings, AWWA C606.

Joint dimension as specified in AWWA C606 for rigid joints , joint dimensions as specified in AWWA C606 for flexible joints.

e. Hardware: Hardware, including bolts, nuts, washers, anchors, and screws, must be galvanized steel.

2.1.2 Valves

2.1.2.1 Gate Valves 2-1/2 Inch Size and Larger

AWWA C509, AWWA C515 and:

a. AWWA C509 or AWWA C515: nonrising stem type with flanged ends

Gate valves are nonrising stem type. Provide gate valves with handwheels that open by counterclockwise rotation of the valve stem. Bolt and construct stuffing boxes so as to permit easy removal of parts for repair.

In lieu of flanged ends, provide valves with grooved ends compatible with grooved type joints, as specified in the paragraph DUCTILE-IRON PIPING. Provide all valves from one manufacturer.

2.1.3 Backflow Preventers

Provide a cast iron AWWA C511 reduced pressure principle type backflow preventer meeting the following requirements:

a. Size: 2-1/2 inch, 4 inches.

b. Flanged cast iron, mounted gate valve.

c. Stainless steel alloys in accordance with ASTM A276/A276M , Type 316.

The particular make, model, and size of backflow preventers to be installed must be included in the latest edition of the List of Approved Backflow Prevention Assemblies issued by the FCCCHR List and be accompanied by a backflow certificate of full approval from FCCCHR List .

Select materials for piping, strainers, and valves used in assembly installation that are galvanically compatible. Materials joined, connected, or otherwise in contact are to have no greater than 0.25 V difference on the Anodic Index, unless separated by a dielectric type union or fitting.

2.1.4 Modular Seal

For sealing annular space between pipe and core drill holes, provide mechanically-adjustable segmented-elastomeric modular seal with Type 316 stainless steel hardware for use in seawater.

2.1.5 Disinfection

Chlorinating materials are to conform to: Chlorine, Liquid: AWWA B301;

Hypochlorite, Calcium and Sodium: AWWA B300.

SECTION 33 11 00 Page 7 February 27, 2020

2.2 ACCESSORIES

2.2.1 Tapping Sleeves

Provide cast gray, ductile, malleable iron or stainless steel, split-sleeve type tapping sleeves of the sizes indicated for connection to existing main with flanged or grooved outlet, and with bolts, follower rings and gaskets on each end of the sleeve. Utilize similar metals for bolts, nuts, and washers to minimize the possibility of galvanic corrosion. Provide dielectric gaskets where dissimilar metals adjoin.

Provide a tapping sleeve assembly with a maximum working pressure of 150 psi. Provide bolts with square heads and hexagonal nuts. Longitudinal gaskets and mechanical joints with gaskets as recommended by the manufacturer of the sleeve. When using grooved mechanical tee, utilize an upper housing with full locating collar for rigid positioning which engages a machine-cut hole in pipe, encasing an elastomeric gasket which conforms to the pipe outside diameter around the hole and a lower housing with positioning lugs, secured together during assembly by nuts and bolts as specified, pre-torqued to 50 foot-pound.

2.2.2 Sleeve-Type Mechanical Couplings

Use couplings to join plain-end piping by compression of a ring gasket at each end of the adjoining pipe sections. The coupling consists of one middle ring flared or beveled at each end to provide a gasket seat; two follower rings; two resilient tapered rubber gaskets; and bolts and nuts to draw the follower rings toward each other to compress the gaskets.

Provide true circular middle ring and the follower rings sections free from irregularities, flat spots, and surface defects; provide for confinement and compression of the gaskets. For ductile iron pipe, the middle ring is cast-iron and the follower rings are malleable or ductile iron. Malleable and ductile iron are to meet the requirements of ASTM A47/A47M and ASTM A536, respectively. Use gaskets for resistance to set after installation and to meet the requirements specified for gaskets for mechanical joint in AWWA C111/A21.11 . Provide track-head type bolts ASTM A307, Grade A, with nuts, ASTM A563, Grade A; or round-head square-neck type bolts, ASME B18.5.2.1M and ASME B18.5.2.2M with hex nuts, ASME B18.2.2 . Provide 5/8 inch diameter bolts. Shape bolt holes in follower rings to hold fast to the necks of the bolts used. Do not use mechanically coupled joints using a sleeve-type mechanical coupling as an optional method of jointing except where pipeline is adequately anchored to resist tension pull across the joint. Provide a tight flexible joint with mechanical couplings under reasonable conditions, such as pipe movements caused by expansion, contraction, slight settling or shifting in the ground, minor variations in trench gradients, and traffic vibrations.

Match coupling strength to that of the adjoining pipeline.

2.2.3 Insulating Joints

Provide a rubber-gasketed insulating joint or dielectric coupling between pipe of dissimilar metals which will effectively prevent metal-to-metal contact between adjacent sections of piping.

2.2.4 Dielectric Fittings

Install dielectric fittings between threaded ferrous and nonferrous metallic pipe, fittings and valves, except where corporation stops join mains to prevent metal-to-metal contact of dissimilar metallic piping elements and compatible with the indicated working pressure.

SECTION 33 11 00 Page 8 February 27, 2020

2.2.5 Asbestos Cement Pipe to Ductile Iron Pipe Pipe Coupling

Provide asbestos cement (AC) pipe to ductile iron (DI) pipe coupling consisting of the following:

a. Castings: All cast components (end rings, center ring, and bolt cams) are ductile iron, meeting or exceeding the requirements of ASTM A536, grade 65-45-12.

b. End Rings: Segmented and joined with an integrated hinge. The gap is spanned by the coupling "armor."

c. Armor: Heavy gauge 304 stainless steel.

d. Gaskets: Made from virgin Ethylene Propylene Diene Monomer Rubber (EPDM) compounded for water service in accordance with ASTM D2000, NSF/ANSI 61 Certified.

e. Bolts and Nuts: Type 316 stainless steel. 5/8-11 UNC. All are carriage head bolts with heavy hex nuts. Fasteners provided with anti-galling protection.

f. Coatings: Center Ring is fusion bonded epoxy, NSF/ANSI 61 Certified.

End rings are electro-coated epoxy.

g. Pressure Rating: Working pressures up to 305 psi and can be tested up to 1.5 times working pressure

2.2.6 Asbestos Cement to Ductile Iron (AC to DI) Pipe Restrainer

Provide DI pipe restrainer on DI pipe and provide AC pipe strainer on AC pipe with restrainer body material of pressure vessel quality steel ASTM A285/A285M Grade C and coated with fusion bonded epoxy coating per AWWA C213, nuts and bolts 3/4-inch by 16-inch long corrosion resistant high strength, low alloy AWWA C111/A21.11 .

2.2.7 Hangers and Supports

Provide pipe hangers and supports conforming to MSS SP-58 , MSS SP-69 , and ASME B31.1 , except as specified or indicated otherwise. Furnish zinc plated pipe hangers and supports, unless indicated otherwise. Provide supports at valves, fittings, branch lines, outlets, changes in direction, equipment, accessories, and as indicated on the Drawings.

2.2.8 Autofreeze Protection Bleed Valves

Provide stainless steel thermostatic automatic freeze protection valve.

Valve shall automatically monitor ambient temperature and bleed water in the line before freezing temperatures can cause frozen or burst piping.

2.3 ULTRA-HIGH MOLECULAR WEIGHT POLYETHYLENE (UHMWPE) RUBBING SURFACE

2.3.1 General

a. Materials including additives shall be traceable by original lot number.

b. Materials used shall be FDA approved or otherwise harmless to marine

SECTION 33 11 00 Page 9 February 27, 2020 matt.waller Cloud life.

c. Fabricated form shall be virgin resin.

2.3.2 Resin

a. ASTM D4020. Virgin resin shall be homopolymer of ethylene and have an intrinsic viscosity (IV) between 22.0 and 28.0 dl/g.

b. No reprocessed resin shall be used.

c. Resin shall be oil and moisture free (0.2 percent weight maximum).

2.3.3 Composition and Fabricated Form

a. Resin shall comprise a minimum 95.0 percent by weight concentration in the formulation.

b. The finished form shall maintain ultraviolet stability for a minimum of 25 years and be free of saltwater or petroleum product leachable materials.

c. No unfused areas or light patches greater than No. 50 sieve shall be in the final fabricated form.

d. The fabricated form shall have the following properties:

Density (ASTM D792) 0.92-0.94 g/cc Tensile Strength (ASTM D638) Ultimate, minimum 4,600 psi Ultimate Elongation, minimum 250 percent Impact Strength (ASTM D256) Test Method A, Izod Non-break for all five determinations in sample Hardness (ASTM D2240), minimum Shore D65 Coefficient of Friction (ASTM D1894) Kinetic, maximum 0.13 Static, maximum 0.20 Water Absorption (ASTM D570) Nil Abrasion Index (relative to steel=100), maximum 10

e. Color shall be black.

2.4 IDENTIFICATION LABELS FOR PIPING

Labels for pipes 3/4 inch o.d. and larger shall bear printed legends to identify contents of pipes and arrows to show direction of flow. Except that of pipes smaller than 3/4 inch o.d., labels shall have color coded backgrounds to signify levels of hazard in accordance with MIL-STD-101 .

Legends and type and size or characters shall also conform to MIL-STD-101 .

Labels shall be made of plastic sheet in conformance with CID A-A-1689 with pressure-sensitive adhesive suitable for the intended applications or they may be premolded of plastic to fit over specific pipe outside diameters 3/4 inch and larger or stenciling per MIL-STD-101 . For pipes smaller than 3/4 inch o.d., furnish brass identification tags 1 1/2 inches in diameter with legends in depressed black-filled characters.

SECTION 33 11 00 Page 10 February 27, 2020

PART 3 EXECUTION

3.1 PREPARATION

3.1.1 Connections to Existing System

Perform all connections to the existing water system in the presence of the Contracting Officer.

3.1.2 Operation of Existing Valves

Do not operate valves within or directly connected to the existing water system unless expressly directed to do so by the Contracting Officer.

3.2 INSTALLATION

Install all materials in accordance with the applicable reference standard, manufacturers instructions and as indicated herein.

3.2.1 Piping

3.2.1.1 General Requirements

Install pipe, fittings, joints and couplings in accordance with the applicable referenced standard, the manufacturer's instructions and as specified herein.

3.2.1.1.1 Pipe Laying and Jointing

Remove fins and burrs from pipe and fittings. Before placing in position, clean pipe, fittings, valves, and accessories, and maintain in a clean condition. Under no circumstances is it permissible to drop or dump pipe, fittings, valves, or other water line material. Cut pipe cleanly, squarely, and accurately to the length established at the site and work into place without springing or forcing. Replace a pipe or fitting that does not allow sufficient space for installation of jointing material.

Grade the pipeline in straight lines; avoid the formation of dips and low points. Support pipe at the design elevation and grade. Secure firm, uniform support. Wood support blocking is not permitted. Provide anchors and supports for fastening work into place. Make provision for expansion and contraction of pipelines. At the end of each work day, close open ends of pipe temporarily with wood blocks or bulkheads.

3.2.1.1.2 Connections to Existing Water Lines

Make connections to existing water lines after coordination with the facility and with a minimum interruption of service on the existing line.

Make connections to existing lines under pressure in accordance with the recommended procedures of the manufacturer of the pipe being tapped and as indicated , except as otherwise specified, tap concrete pipe in accordance with AWWA M9 for tapping concrete pressure pipe .

3.2.1.1.3 Penetrations

Provide ductile-iron or Schedule 40 steel wall sleeves for pipe passing through walls of valve pits and structures. Fill annular space between walls and sleeves with rich cement mortar. Fill annular space between pipe and sleeves with mastic.

SECTION 33 11 00 Page 11 February 27, 2020

3.2.1.1.4 Flanged Pipe

Only install flanged pipe aboveground or with the flanges in valve pits.

3.2.1.2 Ductile-Iron Piping

Unless otherwise specified, install pipe and fittings in accordance with the paragraph GENERAL REQUIREMENTS and with the requirements of AWWA C600 for pipe installation, joint assembly, valve-and-fitting installation, and thrust restraint.

a. Jointing: Make mechanical joints with the gaskets, glands, bolts, and nuts specified for this type joint; assemble in accordance with the applicable requirements of AWWA C600 and AWWA M41 for joint assembly and the recommendations of Appendix A to AWWA C111/A21.11 . Make flanged joints with the gaskets, bolts, and nuts specified for this type joint. Make flanged joints up tight; avoid undue strain on flanges, fittings, valves, and other accessories. Align bolt holes for each flanged joint. Use full size bolts for the bolt holes; use of undersized bolts will not be permitted. Do not allow adjoining flange faces to be out of parallel to such degree that the flanged joint cannot be made watertight without overstraining the flange.

When flanged pipe or fitting has dimensions that do not allow the making of a flanged joint as specified, replace it. Use set screw flanges to make flanged joints where conditions prevent the use of full-length flanged pipe and assemble in accordance with the recommendations of the set screw flange manufacturer. During installation of set screw gasket provide for confinement and compression of gasket when joint to adjoining flange is made. Make grooved type joints with the couplings previously specified for this type joint connecting pipe with the grooved ends specified for this type joint; assemble in accordance with the recommendations of the coupling manufacturer. Groove pipe in the field only with groove cutting equipment designed especially for the purpose and produced by a manufacturer of grooved joint couplings; secure approval for field-cut grooves before assembling the joint. Make insulating joints with the gaskets, sleeves, washers, bolts, and nuts previously specified for this type joint. Assemble insulating joints as specified for flanged joints, except that bolts with insulating sleeves are to be full size for the bolt holes. Ensure that there is no metal-to-metal contact between dissimilar metals after the joint has been assembled.

b. Allowable Deflection: Follow AWWA C600 and AWWA M41 for the maximum allowable deflection. If the alignment requires deflection in excess of the above limitations, provide special bends or a sufficient number of shorter lengths of pipe to achieve angular deflections within the limit set forth.

3.2.1.3 Water Service Piping

3.2.1.3.1 Location

Water service piping serves the service galleries of Dry Dock 4.

3.2.1.3.2 Water Service Line Connections to Water Mains

Connect water service lines to the main as indicated. Connect water service lines to ductile-iron water mains in accordance with AWWA C600 for

SECTION 33 11 00 Page 12 February 27, 2020 service taps.

3.2.2 Backflow Preventers

Install backflow preventers of type, size, and capacity indicated a minimum of 12 inches above ground (measured from bottom of device),and a maximum of 5 feet above ground (measured from top of device. Include valves and test cocks. Install according to the manufacturers requirements and the requirements of plumbing and health department and authorities having jurisdiction. Support RPBS's as indicated on drawings and details. Do not install by-pass piping around backflow preventers.

3.2.3 Disinfection

Prior to disinfection, provide disinfection procedures, proposed neutralization and disposal methods of waste water from disinfection as part of the disinfection submittal. Disinfect new water piping and existing water piping affected by Contractor's operations in accordance with AWWA C651. Fill piping systems with solution containing minimum of 50 parts per million of available chlorine and allow solution to stand for minimum of 24 hours.

3.2.4 Flushing

Perform bacteriological tests prior to flushing. Flush solution from the systems with domestic water until maximum residual chlorine content is within the range of 0.2 to 0.5 parts per million, the residual chlorine content of the distribution system, or acceptable for domestic use. Use AWWA C655 neutralizing chemicals.

3.2.5 Valves

3.2.5.1 Gate Valves

Install gate valves, AWWA C509 or AWWA C515, in accordance with the requirements of AWWA C600 for valve-and-fitting installation and with the recommendations of the Appendix ("Installation, Operation, and Maintenance of Gate Valves") to AWWA C509 or AWWA C515. Make and assemble joints to gate valves as specified for making and assembling the same type joints between pipe and fittings.

3.3 FIELD QUALITY CONTROL

3.3.1 Tests

Notify the Contracting Officer a minimum of five days in advance of hydrostatic testing. Coordinate the proposed method for disposal of waste water from hydrostatic testing. Perform field tests, and provide labor, equipment, and incidentals required for testing. Provide documentation that all items of work have been constructed in accordance with the Contract documents.

3.3.1.1 Hydrostatic Test

Test the water system in accordance with the applicable AWWA standard specified below. Test ductile-iron water mains in accordance with the requirements of AWWA C600 for hydrostatic testing. The amount of leakage on ductile-iron pipelines with mechanical-joints is not to exceed the amounts given in AWWA C600; no leakage will be allowed at joints made by

SECTION 33 11 00 Page 13 February 27, 2020 any other methods. Test water service lines in accordance with requirements of AWWA C600 for hydrostatic testing. No leakage will be allowed at flanged joints .

3.3.1.2 Leakage Test

For leakage test, use a hydrostatic pressure not less than the maximum working pressure of the system. Leakage test may be performed at the same time and at the same test pressure as the pressure test.

3.3.1.3 Bacteriological Testing

Perform bacteriological tests in accordance with AWWA C651. Analyze samples by a certified laboratory, and submit the results of the bacteriological samples.

3.3.1.4 Backflow Preventer Tests

After installation conduct Backflow Preventer Tests and provide test reports verifying that the installation meets the FCCCHR Manual Standards.

3.4 SYSTEM STARTUP

Water mains and appurtenances must be completely installed, disinfected, flushed, and satisfactory bacteriological sample results received prior to permanent connections being made to the active distribution system.

Obtain approval by the Contracting Officer prior to the new water piping being placed into service.

3.5 CLEANUP

Upon completion of the installation of water lines and appurtenances, remove all debris and surplus materials resulting from the work.

3.6 CORROSION PROTECTION AND COATING COLOR FOR FRESH WATER PIPING SYSTEM

Piping and fittings and valves installed outdoors, in tunnels, and in service galleries, shall be epoxy coated in accordance with Section 09 96 00 HIGH-PERFORMANCE COATINGS. Coating color shall be blue FED-STD-595 No. 150444.

-- End of Section --

SECTION 33 11 00 Page 14 February 27, 2020 jerome.s.alina Polygon

2.4 IDENTIFICATION LABELS FOR PIPING