(A) Pipe.
(1) General. Pipe for water mains shall be polyvinyl chloride (PVC) with push-on joints.
(2) PVC pressure pipe, four inches through 12 inches, shall conform to the requirements of AWWA specification C900 (CIOD). PVC pipe shall have bell ends with elastometric gaskets. Pipe joints shall use the Rieber joining system, which has the gasket formed into the pipe during the pipe manufacturing process. Installation procedures shall conform to AWWA C605 standards.
(3) Water service pipe one inch minimum through one-and-one–half inches diameter shall be Type K soft copper tubing or 200 psi coil with compression fitting. Two inches and larger service pipe shall be PVC or 200 psi coil with compression fittings minimum.
(4) Type K soft copper tubing shall be US government Type K soft tubing in 60 foot single or double pancake coils for one inch and one-and-one-half inch diameter material. The minimum center coil diameter shall not be less than 16 inches.
(5) Tubing material for two inches material shall be supplied in 20 foot lengths with ends of tubing to be cut off evenly. Two inch coiled material will not be accepted.
(B) Fittings.
(1) Water main fittings.
(a) General. Fittings used with ductile iron pipe shall be ductile iron. Fittings 12 inches and smaller, used with PVC pipe shall be ductile iron or PVC.
(b) All bolts and nuts shall conform to AWWA C111 and ASTM A325 Type 3. The bolts and nuts shall be cor-blue, fusion bonded epoxy, series 300 stainless steel, or approved equal. Coated bolts and nuts shall be near white or white metal with eight to ten millimeters minimum coating thickness. Fitting types applicable to this specification consist of bends, crosses, tees, reducers/increasers, plugs, caps, couplings, and sleeves.
(2) Ductile iron water main fillings. Fittings shall be ductile iron with 350 psi pressure rating and rubber gasket joints meeting all applicable requirements of the latest edition of AWWA C110, C111, and/or C153 specifications. All internal and external ferrous surfaces shall be coated with a minimum six millimeter thick fusion bonded epoxy coating applied electrostatically and at a minimum shall meet the requirements of AWWA C116.
(3) Unless specified otherwise on the plans or detailed specifications, fillings 12 inches and smaller shall be push-on joint. Push-on joint fittings shall be furnished with restraining lugs. The lug pattern for all sizes shall accommodate gripper-type restrainers.
(4) PVC water main fittings. PVC fittings may be used in-lieu of ductile iron fillings for PVC pipe installations 12 inches and smaller. PVC fittings shall meet all applicable requirements of the latest edition of AWWA C900. The PVC fitting bell ends shall have elastomeric gaskets. Installation procedures shall conform to AWWA C605 standards.
(5) Couplings. Straight couplings shall be Romac style 501, or equal, and shall have ductile iron center rings and end rings meeting ASTM A536-80, Grade 65-45-12. Center rings shall be epoxy coated. Gaskets shall be SBR compounded for water service.
(6) Tapping sleeves. Shall be two strap/bolt red brass configuration or stainless steel, flanged branch ends, with test plugs for pressure testing. The sleeve shall be approved for use at pressures equaling or exceeding those of the pipe classification being installed. Stainless steel tapping sleeves shall have a 304 stainless steel shell with SBR gaskets compounded for water service, a stainless steel flange, and shall have 304 stainless steel nuts, bolts, and washers.
(C) Valves.
(1) General. Valves 16 inches and smaller shall be gate valves, and valves 18 inches and larger shall be butterfly type or gate valves as specified on the plans or detailed specifications.
(2) Gate valves shall conform to the requirements of AWWA standards C509 and C515 with a 250 psi pressure rating and shall have a ductile iron body and bonnet, be resilient seated, utilize mechanical joints including gaskets and bolts, and include all accessories. Bolts shall be cor-blue, fusion bonded epoxy, series 300 stainless steel or approved equal. All internal and external ferrous surfaces shall be coated prior to assembly with a fusion bonded epoxy coating applied electrostatically prior to assembly meeting the requirements of AWWA C550. Gate valves shall have ductile iron wedge fully encapsulated with a SBR rubber or nitrile elastomeric coating. Stems shall be non-rising, one piece cast, forged, or rolled bronze. Valves shall have two inch ductile iron operating nuts and shall open left, counter clockwise. Bonnet bolts and nuts shall be Series 300 stainless steel and shall be rust proofed after threading and final tightening.
(D) Valve boxes.
(1) Gate valves and butterfly valves. Valve boxes shall be Mueller 666-S or equal and shall be a two piece screw-type construction with five-and-one-fourth inch riser and shall be adjustable from four-and-one-half feet to six feet, with the top section to be at least 24 inches in length. Drop lids shall be marked “water” and are to be of all metal construction.
(2) Valve box adaptor. A valve box adaptor shall be installed on the valve bonnet prior to installing the valve box. The valve box adaptor eliminates shifting of the valve box, protects the coatings, centers the valve box, and seals the valve box with a resilient material. The adaptor shall be installed in lieu of hardwood blocking and shall be incidental to the valve box. The valve box adaptor shall be installed per the manufacturer’s recommendations. The valve box adaptor shall be an Adaptor Inc. Valve Box Adaptor II, an American Flow Control Valve Box Self-Centering Alignment Ring, or an approved equal.
(E) Fire hydrants.
(1) Fire hydrants shall meet AWWA standard C502 and shall be Mueller A423, American AVK Series 27, or Waterous WB-67 pacer, traffic model with six feet bury and six inch mechanical joint inlets. Hydrants shall have five-and-one-fourth inch minimum valve openings, having o-ring packing and oil chamber to hold soft oil for stem thread lubrication, and shall have all operating parts, including valve seat, removable through the barrel. Barrel and upper standpipe shall be ductile iron with breaker flange and operating stem at ground level. A steel breakaway coupling shall be installed on the operating stem so that in case of breakage, no damage will result to the fire hydrant other than safety breakers.
(2) All external surface areas on fire hydrant riser (barrel) sections and adjoining 90 degree ells shall be coated with HB Fuller IF1947T red oxide powder, Tnemec Series 140 Pota-Pox epoxy, or equal. All exposed nuts and bolts below the breakaway (direct bury) shall be series 300 stainless steel.
(3) All hydrants shall be capable of being extended in six inch increments. However, the minimum hydrant adjustment shall be 12 inches.
(4) Hydrants shall be constructed so that they will close with the existing water pressure acting on the hydrant. Drain valves shall be bronze and shall be positively operated by the main operating rod. All threads shall be National Standard threads. Operating nuts shall be one-and-one-half inches point-to-flat, pentagon (National Standard). Hydrants shall open left, counter clockwise. Fire hydrants shall have an internal travel stop nut.
(5) Hydrants are to have 2 two-and-one-half inch nozzles and 1 four-and-one-half inch steamer nozzle, all with National Standard threads. The minimum distance from the hydrant breaker flange to the centerline of the lower nozzle shall be 16 inches. Caps shall be nut type and shall be provided with chains. Hydrants shall be painted fire hydrant red.
(6) All fire hydrants are to be ordered with barrel lengths of six to eight feet to facilitate their installation per the grades and lines shown on the drawings. Adjustments greater than eight feet shall be accomplished using vertical bends (45, 22.5, or 11.25) along the hydrant lead. The use of a fire hydrant extension will not be an acceptable method of adjustment for a new fire hydrant.
(F) Service line valves and fittings.
(1) General. Service line valves and fittings shall meet AWWA standard C800 and ASTM B26. All castings shall be 85/5/5/5 copper alloy.
(2) Service line copper splicing couplings shall be flared or compression type such as Mueller 110 conductive compression, Hayes-tite, or equal. Soldered joints shall not be used for service lines installed underground.
(3) Curb stop valves shall be a ball valve type with a 300 psi working pressure rating. A double o-ring port seal shall be provided in the stem and the o-rings shall be supported in precision machined grooves. The end pieces shall be o-ring sealed to provide additional protection against leaking. Ninety degree valve operation, with internal movement restraint, is required. Drains are not permitted on valves. Minneapolis type valve and box are required (not allowing Buffalo type).
(4) Copper pipe connections shall be Mueller 110 conductive compression, A.Y. McDonald McQuick Compression Q Series, Hayes-tite, or equal.
(5) Curb stop valves shall be:
(a) Mueller 300 Ball Curb Valve with Mueller 110 Conductive Compression Connection, model B-25155;
(b) A.Y. McDonald Minneapolis Pattern Ball Valves, 300 psig Water, model 6104Q or 6100Q;
(c) Ford B44 Series; or
(d) Equal.
(6) Corporation stops.
(a) Shall be a ball valve type with a 300 psig working pressure rating. The inlet shall have a taper thread (AWWA standard) and the outlet shall be a conductive compression connection for Type K copper. Copper pipe connections shall be Mueller 110 Conductive Compression, A.Y. McDonald McQuick Compression Q Series, Hayes-tite, or equal.
(b) Corporation stops shall be:
1. Mueller 300 ball with Mueller 110 Conductive Compression Connection, model B-25008;
2. A.Y. McDonald Ball Valves, 300 psig Water, model 4701BQ;
3. Ford FB1000 Series; or
4. Equal.
(7) Service saddles. Service saddles for one inch through two inch copper service pipe shall utilize a wide band/strap with a minimum of two bolts and nuts, per width of the band/strap, for securing the band/strap to the main. The saddle shall provide full support around the circumference of the pipe. Nuts and bolts shall be rolled thread stainless steel or silicon bronze. Gaskets shall be neoprene or NBR compounded for water service.
(8) It shall be the contractor’s responsibility to ensure that saddles and corporation stops are compatible with the pipe on which they are to be installed. If a compatibility question arises, the contractor shall inform the engineer and provide him or her with a recommended substitution.
(9) Saddles for six to 12 inch mains.
(a) Saddles for six to 12 inch mains shall utilize a stainless steel, cast brass per ASTM B62, bronze, or a high strength ductile iron body with a minimum 12 millimeters of fusion applied epoxy or Nylon 11 coating and a stainless steel band.
(b) Saddles shall be pre-sized if required or recommended by the saddle or pipe manufacturer. Pre-sized saddles will conform to the pipe without placing undue stress on the PVC pipe. Not all of the following indicated saddles are pre-sized and it is the responsibility of the contractor and supplier to ensure that the saddle is pre-sized if required or recommended by the saddle or pipe supplier.
(c) Saddles for six to 12 inch mains shall:
1. One inch service taps. Provide a minimum total band/strap width of two inches along the axis of the pipe. Saddles for one inch taps on six to 12 inch pipe shall be Ford style FS303 or FC202, Romac styles 306, 202N and 202BS with SS straps, A.Y. McDonald Model 3845, Mueller DR2S series with double studs, or approved equal.
2. One-and-one-half and two inch service taps. Provide a minimum total band/strap width of three-and-one-fourth inches along the axis of the pipe. Saddles for one-and-one-half and two inch taps on six to 12 inch pipe shall be Ford style FS303 or FC202, Romac styles 306, 202N and 202BS with SS straps, A.Y. McDonald Model 3845, Mueller DR2S series with double studs, or approved equal.
(10) Curb boxes shall be Tyler series, Mueller, Minneapolis type, or equal. The box shall be capable of telescoping, at a minimum, from five feet to a length of six feet. Lid shall be marked “water” and have a 13/16 inch (point to flat) pentagon brass nut. Risers shall be a minimum of two-and-one-half inches in diameter.
(11) Tapping sleeves and valves shall be used for service lines larger than two inches.
(G) Concrete thrust blocks. Thrust blocks shall be M-6 (4,000 psi) concrete.
(H) Joint restraining devices. Joint restraint devices at fittings shall meet the following requirements.
(1) In general, solid ring restraints shall be used whenever possible. Split restraints may be used when connecting to existing systems, for special cases, and when a solid ring restraint is not available for the application. All joint restraint devices shall be epoxy coated (minimum six millimeters), utilize the E Coat coating system as specified by the Ford Meter Box Company, or utilize the Mega-Bond coating system as specified by EBAA Iron, Inc. All bolts, rods, etc. shall be cor-blue, epoxy coated, stainless steel, or fluoropolymer coated per EBAA Iron, Inc. and the Ford Meter Box Company specifications.
(2) For PVC pipe to DI push-on fittings. Fitting joint restraints shall be EBAA Series 15PF00, or equal.
(3) For PVC pipe to DI MJ fittings. Fitting joint restraints shall be EBAA Series 2000PV, Series 2000SV, Series 15PF00, or equal.
(4) For PVC pipe to PVC push-on fittings. Fitting joint restraints shall be EBAA Series 2500, or equal.
(5) Joint restraint devices at pipe bells shall meet the following requirements.
(a) In general, solid ring restraints shall be used whenever possible. Split restraints may be used when connecting to existing systems, for special cases, and when a solid ring restraint is not available for the application. All joint restraint devices shall be epoxy coated (minimum six millimeters), utilize the E Coat coating system as specified by the Ford Meter Box Company, or utilize the Mega-Bond coating system as specified by EBAA Iron, Inc. All bolts, rods, etc. shall be cor-blue, epoxy coated, stainless steel, or fluoropolymer coated per EBAA Iron, Inc. and the Ford Meter Box Company specifications.
(b) For PVC C-900 pipe. The bell restraint shall be EBAA Series 1600, or equal.
(c) For PVC C-905 pipe. The bell restraint shall be EBAA Series 2800, or equal.
(I) Polyethylene encasement (poly-wrap) shall meet AWWA C105. For fittings and joint restraining devices, which are not epoxy coated, the encasement shall be eight millimeters thickness sheet polyethylene meeting AWWA C105. Joint tape for encasement shall be 3M Scotchwrap 50, or equal.
(J) Pipeline insulation.
(1) Pipeline insulation shall be Type IV Styrofoam brand Square Edge or Score Edge as manufactured by Dow Chemical Company, or approved equal shall be used for insulating water pipes where required. The total thickness and dimensions shall be specified on the drawings or in the specifications. The minimum insulation thickness, however, shall be two inches.
(2) Approved equal products from other manufacturer’s shall be extruded-polystyrene board insulation formed from polystyrene base resin by an extrusion process using hydrochlorofluorocarbons as blowing agent to comply with ASTM C578, Type IV, with 1.60 pounds per cubic feet minimum density and a compressive strength of 25 pounds per square feet in as specified in ASTM D1622 and ASTM D1621 respectively. The maximum thermal conductivity of the insulation shall conform to ASTM C518, C177, and C578. The maximum water absorption percentage by volume shall be 1% in accordance with ASTM D2842. The range of water vapor permeance shall be 0.4 to 1.0 perm in accordance with ASTM E96.
(K) Meter, air release, and valve pits.
(1) Meter, air release, and valve pits shall be constructed in accordance with the detailed drawings and unless specified otherwise on the drawings or detailed specifications, the pits shall be constructed in accordance with precast concrete manholes as modified as follows.
(2) Meter, air release, and valve pits shall be provided with steps. Flat cover slabs, when required, shall be designed for HS-20 loading and shall have an offset 24 inches diameter hole in line with the manhole steps. Cones shall have an offset 27 inches diameter hole in line with the manhole steps. Standard frames and covers shall be Neenah 1758, E Frost Retardant Frame and Lid with Inner Lid, or equal unless otherwise indicated on the drawings or specifications. The lid shall be a diamond top design Neenah Type C unmarked.
(L) Tracer wire system. Tracer wire shall be a direct bury wire that meets or exceeds the following requirements.
(1) Conductor. Twelve AWG solid strand softdrawn copper per ASTM B-3 , or B-8 . The breaking pounds of the wire shall be a minimum of 124 with an OD of 0.154. All wire shall be spark tested at 7,500 VAC.
(2) Insulation. Conductor shall be insulated with low density high molecular weight polyethylene insulation suitable for direct bury applications per ASTM D-1248. The minimum insulation thickness shall be 0.045. The color of the insulation shall be blue with a print line saying “water.”
(3) Splices and/or connectors. Splices and/or connectors should be capable of handling two to four wires per connector and designated as water-proof. PVC adhesives or sealing compounds are not acceptable.
(Ord. passed 3- -2006)