33_11_00-WATER_DISTRIBUTION.pdf

SECTION 33 11 00 Page 1

Joint Base Lewis McChord (JBLM) DESIGN STANDARDS

SECTION 33 11 00 - WATER DISTRIBUTION

Design Requirements

A. GENERAL TRANSMISSION AND DISTRIBUTION SYSTEM REQUIREMENTS

1. Piping

a. The minimum water distribution main size shall be 8".

b. Pipes connecting hydrants to mains shall be at least 6 inches in diameter and not longer than 10 feet.

c. Dead end lines are not permitted except where specifically authorized by Public

Works (PW) for special situations, i.e. it is not practical to loop the line at this time.

d. Provide thrust blocking or restrained joints at all fittings and bends.

e. Provide anchor blocking at all up-thrust vertical bends.

f. Minimum size service lines shall be 3/4 inch. Otherwise all service lines shall be the minimum size specified by the Uniform Plumbing Code in accordance with fixture units. Provide stop valve "O" ring seal on all service lines under 2 ½".

g. All water supply and distribution main construction shall have minimum 30" cover from finished grade. The maximum cover shall be 5'-0" cover unless approved by JBLM.

h. All transmission and distribution piping and water services shall have buried directly above, a No. 12 insulated copper tracing wire.

i. Provide water meters for all new buildings.

2. Horizontal Location

a. New mains shall generally be located parallel to street centerline and off-street in landscaped areas if available.

b. Water mains should be laid horizontally, a minimum of 10 feet, from any point of existing or proposed sewer or drain line. Water mains and sewers must not be installed in the same trench. If any conditions prevent a horizontal separation of 10 feet, a minimum horizontal spacing of 6 feet can be allowed, but the bottom of the water main must be at least 12 inches above the top of the sewer. Where water mains and sewers follow the same roadway, they will be installed on opposite sides of the roadway, if practicable.

c. Where water mains and sewers must cross, the sewer shall have no joint within 3 feet of the water main unless the sewer is sleeved with pipe two sizes larger than the water main for a distance of at least 10 feet each side of the crossing. If special conditions dictate that a water main be laid under a gravity-flow sewer, the sewer pipe should be fully sleeved with pipe two sizes larger than the water main for a distance of 10 feet each side of the crossing. A minimum vertical distance of 2 feet between the bottom of water pipe and the top of pressure sewer pipe shall be maintained. The sewer must be adequately supported to prevent settling and insure designed slope is maintained.

3. Valves

a. Valves shall be installed at intervals not greater than 5,000 feet in transmission lines and 1,200 feet in distribution loops.

b. At the intersections of distribution mains, the number of valves required is normally one less than the number of radiating mains. A cross will have 3 valves

SECTION 33 11 00 Page 2 and a tee will have 2 valves. The omitted valve will be from the line which principally supplies flow to the intersection.

c. Valves shall be installed on laterals serving fire hydrants.

d. Blowoff valves or fire hydrants should be installed at the ends of dead-end mains to allow periodic flushing of the mains. Primary feeder mains and larger distribution mains should have a blowoff valve in each valved section which should be installed at low points in the mains where the flushing water can be readily discharged to natural drainage channels. Blowoff valves must be designed so that operation which will result in erosion or destruction of wildlife is not permitted. Special care must be taken to eliminate the possibility of contaminated water entering the distribution system through blowoff valves which have not been tightly closed.

e. Valve marker posts shall be provided for all valves placed outside of paved areas.

All valve marker posts shall be marked with the distance to the valve referenced.

4. Fire Hydrant Spacing

a. Hydrant distribution shall conform to the standards shown in Table III-1 and spacing shall conform to the guidelines given in UFC 3-600-01 FIRE

PROTECTION ENGINEERING FOR FACILITIES)

Table III-1 Hydrant Distribution

Required Fire Flow, GPM

Average Area Per Hydrant, Square Feet

1,000 or less 160,000

1,500 150,000

2,000 140,000

2,500 130,000

3,000 120,000

3,500 110,000

4,000 100,000

4,500 95,000

5,000 90,000

5,500 85,000

6,000 80,000

6,500 75,000

7,000 70,000

7,500 65,000

8,000 60,000

SECTION 33 11 00 Page 3

8,500 57,500

9,000 55,000

10,000 50,000

11,000 45,000

12,000 40,000

b. Fire Hydrants in residential areas shall be located at street intersections. Each single or duplex family unit will have at least one hydrant within 300 feet and a second hydrant within 500 feet. If additional hydrants are needed to meet these criteria, hydrants will normally be located halfway between intersections For airfield hangar areas, hydrants shall be spaced approximately 300 feet apart, and where economically feasible will be connected to the base distribution system and not to the special system serving deluge sprinkler systems in the hangars. For aircraft fueling, mass parking, servicing, and maintenance areas, the fire hydrants will be installed along the edge of aircraft parking and servicing aprons. Hydrants shall be spaced approximately 300 feet apart so that every part of the apron may be reached by approximately 500 feet of hose. Hydrants so located are not a hazard to moving aircraft, and no waiver of the provisions of Air Force Regulation (AFR) 85-5 is required. One or more hydrants will be located within 300 feet of all operational service points

c. Where an adequately sized water main is available, or can be made available for an individually sited building such as a Reserve Center, two hydrants will be installed. However, one hydrant at the site is acceptable if the provision of a second hydrant would require extension of a water main beyond the point necessary to serve the domestic demands of the building.

d. In aircraft fueling, mass parking, servicing, and maintenance areas, the tops of hydrants will not be higher than 24 inches above the ground with the center of lowest outlet not less than 18 inches above the ground. The pumper nozzle will face the nearest roadway.

5. Fire Hydrant Location

a. Hydrants shall be located at least 50 feet from the buildings protected and in no case will hydrants be located closer than 25 feet to a building, except where building walls are blank firewalls.

b. Street intersections are preferred location for fire hydrants. Hydrants shall not be located less than 6 feet nor more than 7 feet from the edge of a paved roadway surface, except in areas with sidewalks or curbs ( In all cases, express consent/approval of the Government’s contracting officer’s representative - COR must be obtained before final placement) . In such situations when hydrants need to be located more than 7 feet from the edge of the paved roadway surface, consideration may be given to stabilizing or surfacing a portion of wide shoulders adjacent to hydrants to permit the connection of the hydrant and pumper with a single 10-foot length of suction hose. In exceptional circumstances, it may not be practical to meet these criteria, and hydrants may be located to permit connection to the pumper using two lengths of suction hose (a distance not to exceed 16 feet). In all such unique cases, the COR’s approval must be obtained before final placement.

c. Hydrants shall not be placed closer than 3 feet to any obstruction nor in front of any entranceways. The center of the lower outlet should not be less than 18

SECTION 33 11 00 Page 4 inches above the surrounding grade and the operating nut should not be more than 4 feet above the surrounding grade.

d. In aircraft fueling, mass parking, servicing, and maintenance areas, the tops of hydrants will not be higher than 24 inches above the ground with the center of lowest outlet not less than 18 inches above the ground. The pumper nozzle will face the nearest roadway.

B. WATER PROJECT APPROVAL PROCESS

a. Washington State Department of Health (DOH) must review and provide written approval for all projects involving the construction of "any new water system, water system extension, or improvement" (WAC 246-290-110). The construction document must include, at a minimum, drawings, material specifications, construction specifications, assembly techniques, testing, disinfection and inspection. Projects submittals should follow guidance in the DOH Design Manual.

b. All submittals for DOH review must be sent to the Government (JBLM Water System Manager) for review and approval. The Government will review the project submittals and direct the designer to forward the submittals for DOH review to the Washington State DOH once all needed corrections are made.

c. The following require DOH approval before the project proceeds: water system plans, new drinking water sources, new Group A water systems, additions or changes to treatment, anything in contact with drinking water (reservoirs, pumps, booster stations, etc), and interties.

d. The following are approval exemptions: installation of valves, fittings, meters, and backflow preventors; installation of hydrants; repair or replacement of a component with a similar capacity or material; and distribution main extensions (if approved, the Water System Comprehensive Management Plan (WSCMP) contains construction specifications). If a capital improvements project is not included in the approved WSCMP then approval from the DOH is required. If JBLM identifies additional capital improvement projects (e.g. all concrete reservoirs to be relined) then there is an option to submit an addendum to the WSCMP for review instead of individual submittals. The addendum is subject to the review process.

e. All fees associated with each DOH review shall be included as part of the Architect-Engineer's costs.

Notes to Designers on Drawing Content

a. Detailed plans shall be submitted for review which provide the locations, size, and type of the proposed water system and points of connection. These Plans shall be separate from sewer plans unless otherwise directed by Public Works.

b. All survey control shall be based on the nearest Corps of Engineer’s benchmarks. Project plans shall have a horizontal scale of not more than 50 feet to the inch. Plans shall show: Locations of streets, existing utilities and water system facilities, ground surface, pipe size, water valve and hydrant stationing, utility easements, all known existing structures, both above and below ground, which might interfere with the proposed construction, particularly sewer lines, gas mains, storm drains, overhead and underground power lines, and telephone lines and television cables.

SECTION 33 11 00

http://www.doh.wa.gov/ehp/dw/publications/design.htm http://www.doh.wa.gov/ehp/dw/publications/design.htm

SECTION 33 11 00 Page 5

WATER UTILITY DISTRIBUTION PIPING

05/16

PART 1 GENERAL

1.1 UNIT PRICES

1.2 REFERENCES

1.3 SUBMITTALS

1.4 QUALITY CONTROL

1.5 DELIVERY, STORAGE, AND HANDLING

PART 2 PRODUCTS

2.1 SYSTEM DESCRIPTION

2.2 PIPE, FITTINGS, JOINTS AND COUPLINGS

2.3 VALVES

2.4 FIRE HYDRANTS AND HOSE HOUSES

2.5 METERS

2.6 ACCESSORIES

2.7 BACKFLOW PREVENTERS

2.8 PROTECTIVE ENCLOSURES

2.9 DISINFECTION

PART 3 EXECUTION

3.1 PRECAUTIONS

3.2 INSTALLATION OF PIPELINES

3.3 FIELD QUALITY CONTROL

3.4 CLEANUP

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 RAILWAY ENGINEERING AND MAINTENANCE-OF-WAY

ASSOCIATION (AREMA)

AREMA Eng Man (2015) Manual for Railway Engineering

AMERICAN WATER WORKS ASSOCIATION (AWWA)

AWWA B300 (2010; Addenda 2011) Hypochlorites

AWWA B301 (2010) Liquid Chlorine

AWWA C104/A21.4 (2013) Cement-Mortar Lining for Ductile-Iron Pipe and

Fittings for Water

AWWA C105/A21.5 (2010) Polyethylene Encasement for Ductile-Iron Pipe Systems

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

SECTION 33 11 00 Page 6

AWWA C111/A21.11 (2012) 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 (2009) Ductile-Iron Pipe, Centrifugally Cast, for Water

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

AWWA C203 (2008) Coal-Tar Protective Coatings and Linings for Steel Water Pipelines - Enamel and Tape - Hot-Applied

AWWA C500 (2009) Metal-Seated Gate Valves for Water Supply Service

AWWA C502 (2014) Dry-Barrel Fire Hydrants

AWWA C504 (2010) Standard for Rubber-Seated Butterfly Valves

AWWA C508 (2009; Addenda A 2011) Swing-Check Valves for

Waterworks Service, 2 In. (50 mm) Through 24 In. (600 mm)

NPS

AWWA C509 (2009) Resilient-Seated Gate Valves for Water Supply

Service

AWWA C600 (2010) Installation of Ductile-Iron Water Mains and Their Appurtenances

AWWA C605 (2013) Underground Installation of Polyvinyl Chloride (PVC)

Pressure Pipe and Fittings for Water

AWWA C651 (2014) Standard for Disinfecting Water Mains

AWWA C700 (2015) Standard for Cold Water Meters - Displacement Type, Bronze Main Case

AWWA C701 (2012) Standard for Cold-Water Meters - Turbine Type for

Customer Service

AWWA C702 (2015) Cold-Water Meters - Compound Type

AWWA C703 (2015) Cold-Water Meters - Fire Service Type

AWWA C704 (2015) Propeller-Type Meters for Waterworks Applications

AWWA C707 (2010) Encoder-Type Remote-Registration Systems for Cold- Water Meters

AWWA C800 (2014) Underground Service Line Valves and Fittings

SECTION 33 11 00 Page 7

AWWA C900 (2007; Errata 2008) Polyvinyl Chloride (PVC) Pressure Pipe, and Fabricated Fittings, 4 In. Through 12 In. (100 mm Through 300 mm), for Water Distribution

AWWA C906 (2015) Polyethylene (PE) Pressure Pipe and Fittings, 4 In.

(100 mm) through 63 In., (1,575 mm) for Water Distribution and Transmission

AWWA M23 (2002; 2nd Ed) Manual: PVC Pipe - Design and Installation

ASME INTERNATIONAL (ASME)

ASME B16.1 (2015) Standard for Gray Iron Threaded Fittings; Classes 125 and 250

ASME B16.15 (2013) Cast Bronze Threaded Fittings Classes 125 and 250

ASME B16.18 (2012) Cast Copper Alloy Solder Joint Pressure Fittings

ASME B16.22 (2013) Standard for Wrought Copper and Copper Alloy Solder Joint Pressure Fittings

ASME B16.26 (2013) Standard for Cast Copper Alloy Fittings for Flared

Copper Tubes

ASME B18.2.2 (2010) Standard for Square and Hex Nuts

ASME B18.5.2.1M (2006; R2014) Metric Round Head Short Square Neck Bolts

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

ASTM INTERNATIONAL (ASTM)

ASTM A 307 (2014) Standard Specification for Carbon Steel Bolts and Studs, 60 000 PSI Tensile Strength

ASTM A 47/A 47M (1999; R 2014) Standard Specification for Steel Sheet, Aluminum-Coated, by the Hot-Dip Process

ASTM A 536 (1984; R 2014) Standard Specification for Ductile Iron Castings

ASTM A 563 (2015) Standard Specification for Carbon and Alloy Steel

Nuts

ASTM A 746 (2009; R 2014) Standard Specification for Ductile Iron Gravity Sewer Pipe

ASTM B 42 (2015a) Standard Specification for Seamless Copper Pipe, Standard Sizes

SECTION 33 11 00 Page 8

ASTM B 61 (2015) Standard Specification for Steam or Valve Bronze Castings

ASTM B 62 (2015) Standard Specification for Composition Bronze or

Ounce Metal Castings

ASTM B 88 (2014) Standard Specification for Seamless Copper Water Tube

ASTM C 94/C 94M (2015) Standard Specification for Ready-Mixed Concrete

ASTM D 1785 (2012) Standard Specification for Poly (Vinyl Chloride)

(PVC), Plastic Pipe, Schedules 40, 80, and 120

ASTM D 2241 (2015) Standard Specification for Poly (Vinyl Chloride) (PVC) Pressure-Rated Pipe (SDR Series)

ASTM D 2464 (2015) Standard Specification for Threaded Poly (Vinyl

Chloride) (PVC) Plastic Pipe Fittings, Schedule 80

ASTM D 2466 (2015) Standard Specification for Poly (Vinyl Chloride) (PVC) Plastic Pipe Fittings, Schedule 40

ASTM D 2467 (2015) Standard Specification for Poly (Vinyl Chloride)

(PVC) Plastic Pipe Fittings, Schedule 80

ASTM D 2564 (2012) Standard Specification for Solvent Cements for Poly (Vinyl Chloride) (PVC) Plastic Piping Systems

ASTM D 2657 (2007; 2015) Heat Fusion Joining Polyolefin Pipe and

Fittings

ASTM D 2774 (2012) Underground Installation of Thermoplastic Pressure Piping

ASTM D 3139 (1998; R 2011) Joints for Plastic Pressure Pipes Using

Flexible Elastomeric Seals

ASTM F 477 (2014) Standard Specification for Elastomeric Seals (Gaskets) for Joining Plastic Pipe

MANUFACTURERS STANDARDIZATION SOCIETY OF THE VALVE AND FITTINGS

INDUSTRY (MSS)

MSS SP-80 (2013) Bronze Gate, Globe, Angle and Check Valves

NATIONAL FIRE PROTECTION ASSOCIATION (NFPA)

NFPA 1961 (2013) Standard on Fire Hose

SECTION 33 11 00 Page 9

NFPA 24 (2013) Standard for the Installation of Private Fire Service Mains and Their Appurtenances

UNDERWRITERS LABORATORIES (UL)

UL 246 (2011; Reprint Feb 2013) Hydrants for Fire-Protection

UL 262 (2004; Reprint Oct 2011) Standard for Gate Valves for Fire- Protection Service

UL 312 (2010; Reprint Mar 2015) Check Valves for Fire-Protection

UL 789 (2004; Reprint Feb 2013) Indicator Posts for Fire-Protection

UNI-BELL PVC PIPE ASSOCIATION (UBPPA)

UBPPA UNI-PUB-08 (2010) Tapping Guide for PVC Pressure Pipe)

WASHINGTON STATE DEPARTMENT OF HEALTH (WSDOH)

DOH Pub #331-123 (Rev. 12/0901(2009)) Water System Design Manual

1.2 DESIGN REQUIREMENTS

1.2.1 Water Distribution Mains

Provide water distribution mains indicated in plan set. Provide water main accessories, gate valves and check valves as specified and where indicated. Submit design calculations of water piping.

Provide water distribution mains indicated as 4 through 12 inch diameter pipe sizes of ductile-iron pipe. Provide ductile iron pipe for 12 inch diameter or larger pipe sizes. Also provide water main accessories, gate valves and check valves as specified and where indicated.

1.2.2 Water Service Lines

Provide water service lines indicated in plan set from water distribution main to building service at a point approximately 5 feet from building. Water service lines shall be copper pipe or polyvinyl chloride (PVC) plastic pipe. Ductile-iron or polyvinyl chloride (PVC) plastic pipe appurtenances, and valves as specified for water mains may also be used for service lines. Provide water service line appurtenances as specified and where indicated. Submit design calculations of water piping.

Provide water service lines indicated as less than 4 inch lines from water distribution main to building service at a point approximately 5 feet from building. Water service lines shall be copper tubing or polyvinyl chloride (PVC) plastic pipe or acrylonitrile-butadiene-styrene (ABS) plastic pipe. Provide water service line appurtenances as specified and where indicated.

1.3 SUBMITTALS

Government approval is required for submittals with a "G" designation; submittals not having a "G" designation are for information only. When used, a designation following the "G" designation identifies the office that will review the submittal for the Government. The following shall be submitted in accordance with Section 01 33 00 SUBMITTAL PROCEDURES:

SD-03 Product Data

SECTION 33 11 00 Page 10

Piping Materials

Water distribution main piping, fittings, joints, valves, and coupling

Water service line piping, fittings, joints, valves, and coupling

Hydrants

Indicator posts

Corporation stops

Valve boxes

Submit manufacturer's standard drawings or catalog cuts, except submit both drawings and cuts for push-on remove joints. Include information concerning gaskets with submittal for joints and couplings.

SD-05 Design Data

Design calculations of water piping

SD-06 Test Reports

Bacteriological Disinfection

Test results from commercial laboratory verifying disinfection

Fire Hydrant Flow Tests

The classification of fire hydrants shall be based on individual flow tests to be conducted by the Contractor. The Contractor shall furnish a record of the flow tests results of all new or replaced fire hydrants by location to the installation Directorate of Emergency Services.

SD-07 Certificates

Water distribution main piping, fittings, joints, valves, and coupling

Water service line piping, fittings, joints, valves, and coupling

Shop-applied lining

Lining

Fire hydrants

Displacement Type Meters

Compound Type Meters

SECTION 33 11 00 Page 11

Certificates shall attest that tests set forth in each applicable referenced publication have been performed, whether specified in that publication to be mandatory or otherwise and that production control tests have been performed at the intervals or frequency specified in the publication. Other tests shall have been performed within 3 years of the date of submittal of certificates on the same type, class, grade, and size of material as is being provided for the project.

SD-08 Manufacturer's Instructions

Delivery, storage, and handling

Installation procedures for water piping

SD-11 Closeout Submittals

Construction completion report

Construction Completion Report as discussed in paragraph 4-10 of the Washington State DOH Water System Design Manual DOH Pub #331-123.

1.4 DELIVERY, STORAGE, AND HANDLING

1.4.1 Delivery and Storage

Inspect materials delivered to site for damage. Unload and store with minimum handling. Store materials on site in enclosures or under protective covering. Store plastic piping, 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 hydrants free of dirt and debris.

1.4.2 Handling

Handle pipe, fittings, valves, hydrants, and other accessories in a manner to ensure delivery to the trench in sound undamaged condition. Take special care to avoid injury to coatings and linings on pipe and fittings; make repairs if coatings or linings are damaged. Do not place any other material or pipe inside a pipe or fitting after the coating has been applied. Carry, do not drag pipe to the trench. Use of pinch bars and tongs for aligning or turning pipe will be permitted only on the bare ends of the pipe.

The interior of pipe and accessories shall be thoroughly cleaned of foreign matter before being lowered into the trench and shall be kept clean during laying operations by plugging or other approved method.

Before installation, the pipe shall be inspected for defects. Material found to be defective before or after laying shall be replaced with sound material without additional expense to the Government.

Store rubber gaskets that are not to be installed immediately, under cover out of direct sunlight.

1.4.2.1 Coated and Wrapped Steel Pipe

Handle steel pipe with coal-tar epoxy coating in accordance with the provisions of AWWA C203.

1.4.2.2 Polyethylene (PE) Pipe, Fittings, and Accessories

Handle PE pipe, fittings, and accessories in accordance with AWWA C901.

1.4.2.3 Miscellaneous Plastic Pipe and Fittings

SECTION 33 11 00 Page 12

Handle Polyvinyl Chloride (PVC), pipe and fittings in accordance with the manufacturer's recommendations. Store plastic piping and jointing materials that are not to be installed immediately under cover out of direct sunlight.

Storage facilities shall be classified and marked in accordance with NFPA 704, with classification as indicated in NFPA 49 and NFPA 325.

PART 2 PRODUCTS

2.1 WATER DISTRIBUTION MAIN MATERIALS

2.1.1 Piping Materials

2.1.1.1 Ductile-Iron Piping

a. Pipe and Fittings: Pipe, AWWA C151/A21.51, Pressure Class 52. Fittings, AWWA C110/A21.10 or AWWA C153/A21.53; fittings with push-on joint ends conforming to the same requirements as fittings with mechanical-joint ends, except that the bell design shall be modified, as approved, for push-on joint. Fittings shall have pressure rating at least equivalent to that of the pipe. Ends of pipe and fittings shall be suitable for the specified joints. Pipe and fittings shall have cement-mortar lining, AWWA C104/A21.4, twice the standard thickness.

b. Joints and Jointing Material:

(1) Joints: Joints for pipe and fittings shall be push-on joints or mechanical joints.

Provide mechanical joints where indicated. Provide flanged joints where indicated.

(2) Push-On Joints: Shape of pipe ends and fitting ends, gaskets, and lubricant for joint assembly, AWWA C111/A21.11.

(3) Mechanical Joints: Dimensional and material requirements for pipe ends, glands, bolts and nuts, and gaskets, AWWA C111/A21.11.

(4) Flanged Joints: Bolts, nuts, and gaskets for flanged connections as recommended in the Appendix to AWWA C115/A21.15. Flange for setscrewed flanges shall be of ductile iron, ASTM A 536, Grade 65-45-12, and conform to the applicable requirements of ASME B16.1, Class 250. Setscrews for setscrewed flanges shall be 190,000 psi tensile strength, heat treated and zinc-coated steel. Gasket and lubricants for setscrewed flanges, in accordance with applicable requirements for mechanical-joint gaskets specified in AWWA C111/A21.11. Design of setscrewed gasket shall provide for confinement and compression of gasket when joint to adjoining flange is made.

(5) Insulating Joints: Designed to effectively prevent metal-to-metal contact at the joint between adjacent sections of piping. Joint shall be of the flanged type with insulating gasket, insulating bolt sleeves, and insulating washers. Gasket shall be of the dielectric type, full face, and in other respects as recommended in the Appendix to AWWA C115/A21.15. Bolts and nuts, as recommended in the Appendix to AWWA C115/A21.15.

(6) Sleeve-Type Mechanical Coupled Joints: As specified in paragraph entitled "Sleeve- Type Mechanical Couplings."

SECTION 33 11 00 Page 13

2.1.1.2 Polyvinyl Chloride (PVC) Plastic Piping

a. Pipe and Fittings: Pipe, AWWA C900, shall be plain end or gasket bell end, Pressure Class

150 (DR 18) with cast-iron-pipe-equivalent OD.

b. Fittings for PVC pipe: Fittings shall be gray iron or ductile iron, AWWA C110/A21.10 or AWWA C153/A21.53, and have cement-mortar lining, AWWA C104/A21.4, standard thickness. Fittings with push-on joint ends shall conform to the same requirements as fittings with mechanical-joint ends, except that bell design shall be modified, as approved, for push-on joint suitable for use with PVC plastic pipe specified in this paragraph. Iron fittings and specials shall be cement-mortar lined in accordance with AWWA C104/A21.4.

c. Joints and Jointing Material: Joints for pipe shall be push-on joints, ASTM D 3139. Joints between pipe and metal fittings, valves, and other accessories shall be push-on joints ASTM D 3139, or compression-type joints/mechanical joints, ASTM D 3139 and AWWA C111/A21.11. Provide each joint connection with an elastomeric gasket suitable for the bell or coupling with which it is to be used. Gaskets for push-on joints for pipe, ASTM F 477.

Gaskets for push-on joints and compression-type joints/mechanical joints for joint connections between pipe and metal fittings, valves, and other accessories, AWWA C111/A21.11, respectively, for push-on joints and mechanical joints. Mechanically coupled joints using a sleeve-type mechanical coupling, as specified in paragraph entitled "Sleeve- Type Mechanical Couplings," may be used as an optional jointing method in lieu of push-on joints on plain-end PVC plastic pipe, subject to the limitations specified for mechanically coupled joints using a sleeve-type mechanical coupling and to the use of internal stiffeners as specified for compression-type joints in ASTM D 3139.

2.1.1.3 Polyethylene (PE) Plastic Piping

Pipe, tubing, and heat-fusion fittings shall conform to AWWA C906.

2.1.1.4 Piping Beneath Railroad Right-of-Way

Piping passing under the right-of-way of a commercial railroad shall conform to the specifications for pipelines conveying nonflammable substances in Chapter 1, Part 5 of the AREMA Eng Man, except for casing pipe, provide ductile-iron pipe in lieu of cast-iron pipe. Ductile-iron pipe shall conform to and have strength computed in accordance with ASTM A 746.

2.1.2 Valves, Hydrants, and Other Water Main Accessories

2.1.2.1 Gate Valves on Buried Piping

AWWA C500, AWWA C509, or UL 262. Unless otherwise specified, valves conforming to: (1) AWWA C500 shall be nonrising stem type with double-disc gates and mechanical-joint ends or push-on joint ends as appropriate for the adjoining pipe, (2) AWWA C509 shall be nonrising stem type with mechanical-joint ends or resilient-seated gate valves 3 to 12 inches in size, and (3) UL 262 shall be inside-screw type with operating nut, double-disc or split-wedge type gate, designed for a hydraulic working pressure of 200 psi, and shall have mechanical-joint ends or push-on joint ends as appropriate for the pipe to which it is joined. Materials for UL 262 valves shall conform to the reference standards specified in AWWA C500. Valves shall open by counterclockwise rotation of the valve stem. Stuffing boxes shall have 0-ring stem seals. Stuffing boxes shall be bolted and constructed so as to permit easy removal of parts for repair. In lieu of mechanical-joint ends and push-on joint ends, valves may have special ends for connection to sleeve-type mechanical coupling. Valve ends and gaskets for connection

SECTION 33 11 00 Page 14 to sleeve-type mechanical coupling shall conform to the applicable requirements specified for the joint or coupling. Where a post indicator is shown, the valve shall have an indicator post flange; indicator post flange for AWWA C500 valve shall conform to the applicable requirements of UL 262. Valves shall be of one manufacturer.

2.1.2.2 Gate Valves in Valve Pit(s) and Aboveground Location

AWWA C500, AWWA C509, or UL 262. Unless otherwise specified, valves conforming to: (1) AWWA C500 shall be outside-screw-and-yoke rising-stem type with double-disc gates and flanged ends, (2) AWWA C509 shall be outside-screw-and-yoke rising-stem type with flanged ends, and (3) UL 262 shall be outside-screw-and-yoke type, shall have double-disc or split-wedge type gate and flanged ends, and shall be designed for a hydraulic working pressure of 150 psi. Materials for UL 262 valves shall conform to the reference standards specified in AWWA C500. Provide valves with handwheels that open by counterclockwise rotation of the valve stem. Stuffing boxes shall be bolted and constructed so as to permit easy removal of parts for repair. In lieu of flanged ends, valves may have grooved or shouldered ends suitable for grooved or shouldered type joints, as specified in paragraph entitled "Ductile-Iron Piping." Valves shall be of one manufacturer.

2.1.2.3 Check Valves

Swing-check type, AWWA C508 or UL 312. Valves conforming to: (1) AWWA C508 shall have iron or steel body and cover and flanged ends, and (2) UL 312 shall have cast iron or steel body and cover, flanged ends, and designed for a working pressure as stated in Design Order. Materials for UL 312 valves shall conform to the reference standards specified in AWWA C508. Valves shall have clear port opening. In lieu of flanged ends, valves may have grooved or shouldered ends suitable for grooved or shouldered type joints, as specified in paragraph entitled "Ductile-Iron Piping." Valves shall be of one manufacturer.

2.1.2.4 Rubber-Seated Butterfly Valves

Rubber-seated butterfly valves shall conform to the performance requirements of AWWA C504.

Wafer type valves conforming to the performance requirements of AWWA C504 in all respects, but not meeting laying length requirements will be acceptable if supplied and installed with a spacer providing the specified laying length. All tests required by AWWA C504 shall be met. Flanged-end valves shall be installed in an approved pit and provided with a union or sleeve-type coupling in the pit to permit removal. Mechanical-end valves 3 through 10 inches in diameter may be direct burial if provided with a suitable valve box, means for manual operation, and an adjacent pipe joint to facilitate valve removal. Valve operators shall restrict closing to a rate requiring approximately 60 seconds, from fully open to fully closed.

2.1.2.5 Pressure Reducing Valves

Pressure reducing valves shall maintain a constant downstream pressure regardless of fluctuations in demand. The valves shall be of the hydraulically-operated, pilot controlled, globe or angle type, and may be actuated either by diaphragm or piston. The pilot control shall be the diaphragm-operated, adjustable, spring-loaded type, designed to permit flow when controlling pressure exceeds the spring setting. Ends shall be flanged. Valve bodies shall be bronze, cast iron or cast steel with bronze trim.

Valve stem shall be stainless steel. Valve discs and diaphragms shall be synthetic rubber. Valve seats shall be bronze. Pilot controls shall be bronze with stainless steel working parts.

2.1.2.6 Vacuum and Air Relief Valves

SECTION 33 11 00 Page 15

Vacuum and air relief valves shall be of the size shown and shall be of a type that will release air and prevent the formation of a vacuum. The valves shall automatically release air when the lines are being filled with water and shall admit air into the line when water is being withdrawn in excess of the inflow. Valves shall be iron body with bronze trim and stainless steel float.

2.1.2.7 Fire Hydrants

Dry-barrel type. Paint hydrants with at least one coat of primer and two coats of enamel paint as discussed in subparagraph d. below. Stencil hydrant number and main size on the hydrant barrel using black stencil paint.

a. Dry-Barrel Type Fire Hydrants: Dry-barrel type hydrants, AWWA C502 or UL 246, "Base Valve" design, shall have 6 inch inlet, 5 1/4 inch valve opening, one 4 1/2 inch pumper connection, and two 2 1/2 inch hose connections. Inlet shall have mechanical-joint end only, except where flanged end is indicated; end shall conform to the applicable requirements as specified for the joint. Size and shape of operating nut, cap nuts, and threads on hose and pumper connections shall be as specified in AWWA C502. Hydrants indicated as "traffic type," shall have frangible sections as mentioned in AWWA C502.

The traffic type hydrant shall have special couplings joining upper and lower sections of hydrant barrel and upper and lower sections of hydrant stem and shall be designed to have the special couplings break from a force not less than that which would be imposed by a moving vehicle; hydrant shall operate properly under normal conditions. Hydrants shall have a 5-inch non-threaded adapter to the 4-1/2 inch pumper connection and a lock to keep the connection from becoming unintentionally disengaged.

b. Classification of Hydrants: Hydrants shall be classified in accordance with their rated capacities based on flow tests to be conducted by the contractor as follows:

(1) Class AA - Rated capacity of 1500 gpm (5680 L/min) or greater

(2) Class A - Rated capacity of 1000-1499 gpm (3785-5675 L/min)

(3) Class B - Rated capacity of 500-999 gpm (1900-3780 L/min)

(4) Class C - Rated capacity of less than 500 gpm (1900 L/min

c. Marking and Painting of Public Hydrants

(1) All barrels are to be painted Federal Standard Color 13591, OSHA Safety Yellow.

(2) A hydrant classification color accent band shall be painted on the bonnet with the following capacity-indicating color scheme to provide simplicity and consistency with colors used in signal work for safety, danger, and intermediate condition.

- Class AA: Light blue

- Class A: Green

- Class B: Orange

- Class C: Red

(3) For rapid identification at night, the capacity colors shall be of a reflective-type paint.

(4) Hydrants rated at less than 20 psi (1.4 bar) shall have the rated pressure stenciled in black on the hydrant top.

(5) In addition to the painted classification band, the rated capacity of high volume hydrants shall be stenciled on the top.

SECTION 33 11 00 Page 16

(6) The classification and marking of hydrants shall be based on individual flow tests to be conducted by the contractor.

(7) Hydrants shall be further identified by placing a blue double-sided reflectorized raised pavement marker in the roadway adjacent to the hydrant at the location shown in figure 6- 44, Typical Fire Hydrant Location Pavement Markers. Detailed specifications for the pavement markers can be found in the Washington State Department of Transportation Standard Specification for Bridge and Road Construction, Sections 8-09 & 9-21.

2.1.2.8 Fire Hydrant Hose Houses

Hose houses conforming to the requirements of NFPA 24 shall be furnished at each fire hydrant indicated on the drawings to have a fire-hydrant hose house. The following equipment, in addition to that listed in NFPA 24, paragraph 5-6.1, shall be furnished with each hose house:

a. 200 feet of 2-1/2 inch, woven jacketed, rubber lined hose conforming to NFPA 1961 with a minimum service test pressure of 300 psi.

b. 100 feet of 1-1/2 inch, woven jacketed, rubber lined hose conforming to NFPA 1961 with a minimum service test pressure of 300 psi.

c. One gated 2-1/2 by 1-1/2 by 1-1/2 inch wye.

d. One playpipe for 2-1/2 inch hose with 1 inch shutoff nozzle tip.

e. One playpipe for 1-1/2 inch hose with 1/2 inch shutoff nozzle or combination nozzle.

f. Two adapter fittings, 2-1/2 to 1-1/2 inch.

g. Two spanners for 1-1/2 inch hose.

2.1.2.9 Indicator Posts

UL 789. Provide for gate valves where indicated.

2.1.2.10 Valve Boxes

Provide a valve box for each gate valve on buried piping. Valve boxes shall be of cast iron of a size suitable for the valve on which it is to be used and shall be adjustable. Cast-iron boxes shall have a minimum cover and wall thickness of 3/16 inch. Provide a round head. Cast the word "WATER" on the lid. The least diameter of the shaft of the box shall be 5 1/4 inches. Cast-iron box shall have a heavy coat of bituminous paint.

2.1.2.11 Valve Pits

Valve pits shall be constructed at locations indicated or as required above and in accordance with the details shown.

2.1.2.12 Turbine Type Meters

Turbine type meters shall conform to AWWA C701 Class II. The main casing shall be bronze with stainless steel external fasteners. Registers shall be straight-reading type, shall be permanently sealed

SECTION 33 11 00 Page 17 and shall read in U.S. gallons. Connections shall be suitable to the type of pipe and conditions encountered. Register type shall be an encoder type remote register designed in accordance with AWWA C707. Meters shall comply with the accuracy and capacity requirements of AWWA C701.

2.1.2.13 Propeller Type Meters

Propeller type meters shall conform to AWWA C704. Registers shall be straight-reading type, shall be permanently sealed and shall read in U.S. gallons. Connections shall be suitable to the type of pipe and conditions encountered. Register type shall be an encoder-type remote register designed in accordance with AWWA C707. Meters shall comply with the accuracy and capacity requirements of AWWA C703.

2.1.2.14 Meter Vaults

Large meters shall be installed in reinforced concrete vaults manufactured in accordance with Section

03 40 00.00 10 PLANT-PRECAST CONCRETE PRODUCTS FOR BELOW GRADE

CONSTRUCTION. Large meters shall be installed in reinforced concrete vaults in accordance with the details shown on the drawings.

2.1.2.15 Sleeve-Type Mechanical Couplings

Couplings shall be designed to couple plain-end piping by compression of a ring gasket at each end of the adjoining pipe sections. The coupling shall consist 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. The middle ring and the follower rings shall be true circular sections free from irregularities, flat spots, and surface defects; the design shall provide for confinement and compression of the gaskets. For ductile iron pipe, the middle ring shall be of cast-iron. Malleable and ductile iron shall, conform to ASTM A 47/A 47M and ASTM A 536, respectively. Gaskets shall be designed for resistance to set after installation and shall meet the applicable requirements specified for gaskets for mechanical joint in AWWA C111/A21.11. Bolts shall be track-head type, ASTM A 307, Grade A, with nuts, ASTM A 563, 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.

Bolts shall be per Manufacturer's written guidance. Bolt holes in follower rings shall be of a shape to hold fast the necks of the bolts used. Mechanically coupled joints using a sleeve-type mechanical coupling shall not be used as an optional method of jointing except where pipeline is adequately anchored to resist tension pull across the joint. Mechanical couplings shall provide a tight flexible joint under all reasonable conditions, such as pipe movements caused by expansion, contraction, slight setting or shifting in the ground, minor variations in trench gradients, and traffic vibrations. Couplings shall be of strength not less than the adjoining pipeline.

2.1.2.16 Bonded Joints

For all ferrous pipe, a metallic bond shall be provided at each joint, including joints made with flexible couplings, caulking, or rubber gaskets, of ferrous metallic piping to effect continuous conductivity.

The bond wire shall be Size 1/0 copper conductor suitable for direct burial shaped to stand clear of the joint. The bond shall be of the thermal weld type.

2.1.2.17 Tracer Wire for Nonmetallic Piping

Provide bare copper or aluminum wire not less than 0.10 inch in diameter in sufficient length to be continuous over each separate run of nonmetallic pipe.

SECTION 33 11 00 Page 18

2.2 WATER SERVICE LINE MATERIALS

2.2.1 Piping Materials

2.2.1.1 Copper Pipe and Associated Fittings

Pipe, ASTM B 42, regular, threaded ends. Fittings shall be brass or bronze, ASME B16.15, 125 pound.

2.2.1.2 Copper Tubing and Associated Fittings

Tubing, ASTM B 88, Type K. Fittings for solder-type joint, ASME B16.18 or ASME B16.22; fittings for compression-type joint, ASME B16.26, flared tube type.

2.2.1.3 Plastic Piping

Plastic pipe and fittings shall bear the seal of the National Sanitation Foundation (NSF) for potable water service. Plastic pipe and fittings shall be supplied from the same manufacturer.

a. Polyvinyl Chloride (PVC) Plastic Piping with Screw Joints: ASTM D 1785, Schedule 40; or ASTM D 2241, with SDR as necessary to provide 150 psi minimum pressure rating.

Fittings, ASTM D 2466 or ASTM D 2467. Pipe and fittings shall be of the same PVC plastic material and shall be one of the following pipe/fitting combinations, as marked on the pipe and fitting, respectively: PVC 2120/PVC II; PVC 2116/PVC II. Solvent cement for jointing, ASTM D 2564. Pipe couplings, when used shall be tested as required by

ASTM D 2464.

b. Polyvinyl Chloride (PVC) Plastic Piping with Elastomeric-Gasket Joints:

Pipe shall conform to dimensional requirements of ASTM D 1785 Schedule 40, with joints meeting the requirements of 150 psi working pressure, 200 psi hydrostatic test pressure, unless otherwise shown or specified.

c. Polyvinyl Chloride (PVC) Plastic Piping with Solvent Cement Joints:

Pipe shall conform to dimensional requirements of ASTM D 1785 or ASTM D 2241 with joints meeting the requirements of 150 psi working pressure and 200 psi hydrostatic test pressure.

d. Polyethylene (PE) Plastic Pipe: Pipe tubing, and heat fusion fitting shall conform to AWWA

C901.

e. Acrylonitrile-butadiene-styrene (ABS) Plastic Piping: ASTM D 1527 or ASTM D 2282, with pipe schedule or SDR as necessary to provide 150 psi minimum pressure rating. Fittings, ASTM D 2468, as required to provide barrel wall thickness not less than that of the pipe.

Solvent cement for jointing, ASTM D 2235.

f. Molecularly Oriented Polyvinyl Chloride (PVCO) Pressure Pipe: AWWA C909, plain end or gasket bell end, Pressure Class 150 with cast iron pipe equivalent outside diameter.

2.2.2 Water Service Line Appurtenances

SECTION 33 11 00 Page 19

2.2.2.1 Corporation Stops

Ground key type; bronze, ASTM B 61 or ASTM B 62; and suitable for the working pressure of the system. Ends shall be suitable for solder-joint, or flared tube compression type joint. Threaded ends for inlet and outlet of corporation stops, AWWA C800; coupling nut for connection to flared copper tubing, ASME B16.26.

2.2.2.2 Curb or Service Stops

Ground key, round way, inverted key type; made of bronze, ASTM B 61 or ASTM B 62; and suitable for the working pressure of the system. Ends shall be as appropriate for connection to the service piping. Arrow shall be cast into body of the curb or service stop indicating direction of flow.

2.2.2.3 Service Clamps

Service clamps used for repairing damaged cast-iron, steel, PVC or asbestos-cement pipe shall have a pressure rating not less than that of the pipe to be connected and shall be either the single or double flattened strap type. Clamps shall have a galvanized malleable-iron body with cadmium plated straps and nuts. Clamps shall have a rubber gasket cemented to the body.

2.2.2.4 Goosenecks

Type K copper tubing. Joint ends for goosenecks shall be appropriate for connecting to corporation stop and service line. Length of goosenecks shall be in accordance with standard practice.

2.2.2.5 Dielectric Fittings

Dielectric fittings shall be installed between threaded ferrous and nonferrous metallic pipe, fittings and valves, except where corporation stops join mains. Dielectric fittings shall prevent metal-to-metal contact of dissimilar metallic piping elements and shall be suitable for the required working pressure.

2.2.2.6 Check Valves

Check valves shall be designed for a minimum working pressure of 150 psi or as indicated. Valves shall have a clear waterway equal to the full nominal diameter of the valve. Valves shall open to permit flow when inlet pressure is greater than the discharge pressure, and shall close tightly to prevent return flow when discharge pressure exceeds inlet pressure. The size of the valve, working pressure, manufacturer's name, initials, or trademark shall be cast on the body of each valve. Valves 2 inches and larger shall be Class 125 type.

a. Valves 2 inches and smaller shall be all bronze designed for screwed fittings, and shall conform to MSS SP-80, Class 150, Types 3 and 4 as suitable for the application.

2.2.2.7 Gate Valves 3 Inch Size and Larger

Gate valves 3 inch size and larger AWWA C500 or UL 262 and of one manufacturer. Valves, AWWA C500, nonrising stem type with double-disc gates. Valves, UL 262, inside-screw type with operating nut, split wedge or double disc type gate, and designed for a hydraulic working pressure of 175 psi.

Materials for UL 262 valves conforming to the reference standards specified in AWWA C500. Valves shall open by counterclockwise rotation of the valve stem. Stuffing boxes shall have 0-ring stem seals and shall be bolted and constructed so as to permit easy removal of parts for repair.

2.2.2.8 Gate Valves Smaller than 3 Inch in Size

SECTION 33 11 00 Page 20

Gate valves smaller than 3 inch size MSS SP-80, Class 150, solid wedge, nonrising stem. Valves shall have flanged or threaded end connections, with a union on one side of the valve. Provide handwheel operators.

2.2.2.9 Gate Valve 3 Inch Size and Larger

Gate valves 3 inch size and larger in valve pits and aboveground locations, AWWA C500 or UL 262 and of one make. Valves conforming to: (1) AWWA C500 shall be outside-screw-and-yoke rising-stem type with flanged ends and double-disc gates and (2) UL 262 shall be outside-screw-and-yoke type, shall be designed for a hydraulic working pressure of 175 psi, and shall have flanged ends and double-disc or split-wedge type gate. Materials for UL 262 valves shall conform to the reference standards specified in AWWA C500. Provide valves with handwheels that open by a counterclockwise rotation of the valve stem. Stuffing boxes shall be bolted and constructed so as to permit easy removal of parts for repair.

2.2.2.10 Gate Valves Smaller Than 3 Inch Size in Valve Pits

MSS SP-80, Class 150, solid wedge, inside screw, rising stem. Valves shall have flanged or threaded end connections, with a union on one side of the valve and a handwheel operator.

2.2.2.11 Curb Boxes

Provide a curb box for each curb or service stop. Curb boxes shall be of cast iron of a size suitable for the stop on which it is to be used. Provide a round head. Cast the word "WATER" on the lid. Each box shall have a heavy coat of bituminous paint.

2.2.2.12 Valve Boxes

Provide a valve box for each gate valve on buried piping. Valve boxes shall be of cast iron of a size suitable for the valve on which it is to be used and shall be adjustable. Provide a round head. Cast the word "WATER" on the lid. The least diameter of the shaft of the box shall be 5 1/4 inches as indicated. Cast-iron box shall have a heavy coat of bituminous paint.

2.2.2.13 Tapping Sleeves

Tapping sleeves of the sizes indicated for connection to existing main shall be the cast gray, ductile, or malleable iron, split-sleeve type with flanged or grooved outlet, and with bolts, follower rings and gaskets on each end of the sleeve. Construction shall be suitable for a maximum working pressure of 150 psi. Bolts shall have square heads and hexagonal nuts. Longitudinal gaskets and mechanical joints with gaskets shall be as recommended by the manufacturer of the sleeve. When using grooved mechanical tee, it shall consist of 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, pretorqued to 50 foot-pound.

2.2.2.14 Displacement Type Meters

Displacement type meters shall conform to AWWA C700. Registers shall be straight-reading and shall read in U.S gallons. Meters in sizes 13 through 1/2 through 1 shall be frost-protection design.

Connections shall be suitable to the type of pipe and conditions encountered. Register type shall be an encoder type remote register designed in accordance with AWWA C707. Meters shall comply with the accuracy and capacity requirements of AWWA C700.

SECTION 33 11 00 Page 21

2.2.2.15 Compound Type Meters

Compound type meters shall conform to AWWA C702 and shall be furnished with strainers.