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Contractor shall conduct all water system improvements in accordance with the following: • The City -adopted project special conditions of approval; • The approved improvement plans including any supplemental updates thereto; • The City -approved permit(s); • The Standard Specifications of the State of California Department of Transportation, the latest edition, and the Standard Plans of the State of California Department of Transportation, the latest edition; • The City of Napa Standard Plans, including any supplemental updates thereto; • These Water Distribution System Provisions; • The latest version of the applicable AWWA standards; • The regulation(s) and requirement(s) of appropriate agencies (e.g. State Department of Transportation, Depar tment of Fish and Wildlife, Pacific Gas & Electric, Napa Sanitation District, AT&T, et al.). Contractor shall submit any proposed revisions to the approved plans in writing which shall be reviewed and approved prior to any work taking place. The Water Div ision Engineer may allow modifications to the Water Distribution System Provisions or Standards for the convenience of the City on a case -by -case basis; all water system standard(s) modification(s) shall be subject to the review and approval of the Water D ivision Engineer. If standards or other government regulations (including but not limited to minimum separation requirements) are in conflict, the stricter requirement shall prevail. Contractor shall submit all record drawings to the Water Division office in a timely fashion. The terms Applicant, Developer, Customer, and Contractor are used throughout these Water Distribution System Provisions and are intended to mean the same and can be used interchangeably.
Wat er mains shall consist of either fusible C900 or C905, standard C900 or C905 with epoxy -coated fittings, metallic zinc -coated ductile iron pipe with epoxy -coated fittings, or standard ductile iron pipe and fittings with cathodic protection that shall be no ted in the approved improvement plans. When new water system connections are made to existing metallic water mains, cathodic protection shall be installed on the existing pipeline as directed by the Water Division. Water mains shall be installed within the public right -of -way and shall include fire hydrants, service laterals, meters, and their appurtenances (i.e., public water facilities) as directed by the City. Installation of new water facilities within a dedicat ed water line easement shall be at the sole discretion of the Water Division Engineer. Unless otherwise approved, easements shall be a minimum of 20 feet wide, centered on the water line and designated as Public Water Utility Easements. All new distribut ion pipelines shall be a minimum of 6 inches or be of sufficient size to supply adequate fire flow unless otherwise approved. Standard top of pipe cover depths shall be 36 inches unless otherwise approved by the Water Division Engineer. Cover depths shal l be measured from the top of the pipe barrel to the finish street surface. Water services shall be sized appropriately for the intended use and comply with the current California Plumbing Code. The Water Division Engineer may request an engineered water analysis of the private water system (new or existing) to evaluate capacity and service size. Undersized water services shall not be permitted under any circumstances. A Water Fixture Count for determining the proposed water service size shall be performe d per the latest edition of the California Plumbing Code as required by the Water Division and the Building Division. Water service laterals shall not exceed the size of the public water main that is connected to the service. The allowance of size -on -size water service laterals shall be at the sole discretion of the Water Division Engineer. In the event proposed demands cannot be met by the City’s distribution system, the Water Division Engineer shall conduct a hydraulic analysis (or direct the Applicant to conduct a hydraulic analysis at his or her own expense) to determine water system deficiencies that shall be addressed at the sole expense of the Applicant. Water mains shall be installed as part of a looped system to ensure reliable service. Dead -en d mains shall be avoided whenever possible. Future water main extensions to the boundary of a subdivision where streets are stubbed shall be at the sole discretion of the Water Division Engineer. Changes in pipeline grade to clear existing or proposed unde rground facilities shall be achieved through vertical offsets with the use of fittings, if required. All fittings shall be made with fully restrained joints and shall adhere to the requirements of City Standard Plan W -15. Deflection of pipelines may be u sed to avoid existing or proposed underground facilities if approved by the Water Division Engineer; deflection at pipe joints shall not exceed 3 degrees (minimum radius = 345 feet). Signs, fences, trees, foundations, streetlights, or other permanent struc tures shall not be installed within 10 feet of a City water main or water facility, or within a public water utility easement. Thrust blocks and restrained joints shall be installed as required and conform to the City of Napa Standard Plans W -14A , W-14B an d W -14C . All freeway/expressway crossings shall be fusible C900 or C905, have a minimum 12 -inch carrier pipe inside an appropriately sized casing pipe, and conform to City Standard Plan W -13B and these Water Distribution System Provisions. Installation of a private pressure system may be required where sufficient pressure is not available from the existing or proposed water distribution facilities. Only those personnel trained and equipped to meet the various standards and requirements contained herein shal l conduct water system installations. Installation of new water mains shall include saw -cutting and removal of asphalt and trench excavation; furnishing and installation of all pipe, fittings, valves, anodes, tracer wires, bonding fittings; connectivity t esting; placing and compacting bedding and backfill material; pressure testing; chlorinating; installation of temporary trench paving tying back into the existing water system; and other miscellaneous work to ensure a complete and functional water system i s turned over to the City.
Distribution mains shall refer to the main pipeline within a public right -of -way or easement that supplies water to one or more service connections. Installation shall include the main pipeline and ass ociated fittings, valves, combination air -vacs, top blow -offs, and other materials necessary to provide a complete and functional system. Only authorized City personnel shall operate existing valves on the water system at all times. The Applicant or Contr actor shall be responsible for notifying the Water Division of a scheduled shutdown a minimum of 48 hours (two working days) in advance. Main extensions shall extend from the end of an existing main to a point defined in the approved plans. Contractor sha ll be responsible for notifying water customers affected by the water shutoff a minimum of 48 hours (two working days) prior to commencement of the work. City water mains extended from an existing main at a dead -end, with the feasibility of being extended further in the future, shall end with a tee that connects to a fire hydrant (per City Standard W -8), equipped with a mechanical joint cap at the end. The extended main shall be installed with restrained joints per City standards. If the length of the new main is less than the required restrained length, the new main shall be installed with restrained joints to the point of the existing main, with a wing wall installed on the live section of the main. A concrete thrust block shall not be installed at the end of the main unless otherwise permitted by the Water Division Engineer. Final tie -in locations shall be potholed in a timely manner to verify line and grade and facilitate adjustments, if necessary. Separation between the newly installed water system a nd the tie -in location on the active water system shall not exceed 10 feet. Tie -ins shall be at the same line and grade and be conducted under direct inspection by the Water Division Engineer or Designee. Permanent connection(s) between the existing water system and newly built water main(s) shall conform to the tie -in locations shown in the approved plans and occur only after approval by the Water Division Engineer. Final tie -ins shall occur only after successful completion and passing of the pressure, c hlorinating, flushing, and bacteriologic tests. Contractor shall be responsible for notifying the Water Division of a scheduled tie -in a minimum of five working days in advance of the tie -in. Contractor shall notify all affected customers a minimum of 48 hours in advance of the water system shutdown. The Water Division Engineer may forbid connection to the existing water system if it is determined that the newly installed system is not complete and functional or does not conform to the approved plans.
Contractor shall install blow -off(s) as shown in the approved plans, and conform to City Standard W -8, W -10A, or W -10B. The plans shall indicate the size, type, and location of the proposed blow -off(s). Blow -offs shall be installed on al l dead -end mains smaller than 6 inches in diameter or at other locations as required by the Water Division Engineer. Fire hydrants shall be installed at the ends of all water mains 6 inches and larger in diameter, which shall serve as the blow -off assembl y. The piping between the outlet valve and the riser shall be at a continuous downgrade of not less than ¼ inch per foot. Blow -offs installed in unpaved areas or rural settings shall be set at the existing ground surface and may require special covers, mar kings, signs, protective bollards, concrete pad, etc., as directed by the Water Division Engineer.
Contractor shall install combination air release and vacuum valve(s) as shown in the approved plans, and c onform to City Standard W -11A or W -11B and the latest version of AWWA C512. The plans shall indicate the size, type, and location of the proposed combination air release and vacuum valve(s). Combination air release and vacuum valves or top blow -offs shall be installed at high points within the distribution system, or at other points designated in the approved plans. Other locations may be required as directed by the Water Division Engineer. The piping between the outlet valve and the riser shall be at a c ontinuous upgrade of ¼ inch per foot. Combination air release and vacuum valves placed in urban settings may require special screening or approved covers, protective bollards, etc., as directed by the Water Division Engineer. Combination air release and va cuum valves installed in unpaved or rural settings may require special covers, markings, signs, protective bollards, concrete pad, etc., as directed by the Water Division Engineer.
Contractor shall install valve( s) as shown in the approved plans, and conform to City Standard W-9 and the latest applicable version of AWWA standards. The plans shall indicate the size, type, and location of the valve(s). Resilient seated gate valves shall be used for pipe sizes small er than 12 inches. Butterfly valves shall be used for pipe sizes 12 inches and larger, unless otherwise approved by Water Division Engineer. When possible, all valves shall be installed at the intersections of two pipelines, and within straight runs so tha t no more than 500 feet of water main would be out of service during water system shutdowns. Valves shall be installed in a level position with the operating stem in a vertical position and be stabilized and supported separately from the pipeline. Valves installed in unpaved or rural settings may require installation of additional signs, markings, witness posts, concrete pads, etc., as directed by the Water Division Engineer. Valve box caps shall be set flush with the finished pavement surface. Valve box caps shall be marked “WATER”.
Contractor shall install fire hydrants as shown in the approved plans and conform to City Standard W -8 and the latest version of AWWA C502. The size and location of all fire hydrants may be subject to final approval by the City of Napa Fire Department, with exception of fire hydrants used at the end of water mains as blow -offs . Standard bury depths shall be 24 inches. A minimum of one fire hydrant shall be located at each intersection and shall be installed in the parkway and/or sidewalk area adjacent to the curb. The Water Division Engineer may, upon request approved by the City of Napa Fire Department, change the location of fire hydrant(s) within such strip as necessary. Hydrants will be required on opposite sides of the streets where raised median strips are present, where heavy traffic loads are common, and where the stre et consists of more than 80 feet of dedicated width. Contact the City of Napa Fire Prevention Division for additional hydrant spacing and placement information. The Water Division Engineer may require, on a case -by -case basis, the installation of addition al fire hydrants above the number required by the City of Napa Fire Department for the convenience of the City.
Contractor shall install water services as shown in the approved plans and conform to City standards and the latest version of the applicable AWWA standards. The plans shall indicate size, direction, and location of the water service and meter box. The Water Division Engineer will, insofar as practicable, work with the Applicant to locate the water meter along the property line at a point designated by the Customer. The allowance of size -on -size water service laterals shall be at the sole discretion of the Water Division Engineer. Water service laterals shall not exceed the size of the public water main that is connected to the service. In the event proposed demands cannot be met by the City’s distribution system, the Water Division Engineer shall conduct a hydraulic analysis (or direct the Applicant to conduct a hydraulic analysis at his or her own expense) to determine water system deficiencies that shall be addressed at the sole expense of the Applicant. Water meter boxes and vaults shall be located outside all driveways and traveled ways, and be accessible at all times for inspections, reading, testing, and m aintenance. Water services within areas where the static pressure is in excess of 80 pounds per square inch (psi) shall be equipped with a pressure regulator that conforms to the most current California Plumbing Code. Conversely, installation of a private pressure system may be required where sufficient pressure is not available from the existing or proposed water distribution facilities. All water service laterals shall be metered connections, with the exception of those designated by the Water Division E ngineer. All fire services with designated private hydrants shall be metered through an approved fire service meter as directed by the Water Division Engineer. Fire services without private hydrants shall have tattletale meters installed as part of the de tector assembly on the backflow device. Water meters installed in high -density urban settings may require the use of separate meters (i.e., hotel, restaurant, residential, or mixed -use) as directed by the Water Division Engineer. Water meter banks shall b e clearly labeled on the outside of the meter boxes to delineate units served. Meter installations in multi -family residential settings (e.g., apartments, condominiums, townhomes, etc.) will require the use of a master meter. Water meter(s) installed in un paved or rural settings may require installation of additional signs, markings, witness posts, concrete pads, etc., as directed by the Water Division Engineer. Water meter installations may be scheduled upon receipt of payment, parcel address(es) and respo nsible party; meter installations shall only occur after successful completion and passing of the pressure, chlorinating, flushing, and bacteriologic tests and after all backflow devices have been certified and tested.
Contractor shall install backflow device(s) as shown in the approved plans and conform to applicable City and latest version of AWWA standards. The plans shall indicate size, location, and reference the applicable City Standard. Backflow device(s) shall be install ed in a manner that provides the clearances shown on the applicable City standard to facilitate inspection and maintenance. Backflow devices installed on residential, commercial, industrial, or irrigation water services shall be installed as close to the m eter or property line as practical, but in all cases before the first branch line. Residential water service(s) shall be equipped with an approved double -check backflow prevention assembly. All commercial, industrial, or irrigation water service(s) shall be equipped with an approved reduced -pressure (RP) principle backflow prevention assembly. A Water Division Representative with Cross -Connection Specialist Certification may, at his or her own sole discretion, require the installation of an RP device in l ieu of a double -check backflow device assembly (i.e., the type of backflow protection required is commensurate with the degree of hazard that exists on the premises). Backflow devices installed on fire services shall be installed as close to the meter or p roperty line as practical, but in all cases before the first branch line. The Water Division Engineer may approve, on a case -by -case basis, fire service backflow device installations inside a building or closet for installation within high -density urban a reas. Backflow device installations in high -density urban settings may require special screening, landscaping, or approved covers, protective bollards, etc., as directed by the City Planning Division. All backflow prevention assemblies shall be a model and size approved by the Foundation for Cross -Connection Control and Hydraulic Research of the University of Southern California and listed on the Foundation’s current list of approved backflow prevention assemblies. Meter shall be installed in the lock position before backflow devices can be tested. Use of ju mpers, hose bibs, or other devices shall not be permitted. Water service will not be unlocked until passing results are received by the City of Napa.
Contractor shall install fire hydrants for the pri mary purposes of extinguishing fires and water utility maintenance activities. Only an authorized City representative(s) or permitted customer(s) shall withdraw water from fire hydrants. Water withdrawn from any hydrant shall be taken through a hydrant me ter. In all cases where the City grants a permit to take water from a fire hydrant, the permitted customer shall use the eddy valve on the hydrant meter assembly to regulate the delivery of the water. Contractor can obtain a permit to withdraw water by su bmitting a Hydrant Meter Set Form to the City’s Revenue Division. The City shall collect a deposit prior to issuance of any h ydrant meter. All hydrant meters and backflow devices shall be fully supported to ensure the weight of the meter and backflow device are not bearing on the steamer opening of the hydrant. The water meter and backflow device shall be protected from damage a t all times and be returned to the City in good working order. The City reserves the right to determine whether or not a meter and/or backflow device is in good working order; retention or release of the deposit will be based on the condition of the meter and/or backflow device and shall be at the sole discretion of the City.
Contractor shall furnish all materials required to complete the work. A list of material sources shall include, but not be limited to, type, manufacturer, and model number of proposed materials. Specific manufacturers and part numbers may be indicated within these Provisions and City Standard Plans. The list of material sources shall be approved by the City prior to the installation. Submitted materials shall confor m to the requirements contained herein. All substitutions and "or approved equal" shall be reviewed by the Water Division Engineer prior to installation. Submittal of an approved equal will be reviewed on a case -by -case basis. The list shall be furnished in sufficient time to permit proper inspection and testing of materials furnished from such listed sources in advance of their use. Such samples shall be furnished, without charge, as may be required. Inspection and tests, if deemed necessary, will be m ade by the Water Division or designated representative, but it shall be understood that such inspections and tests, if made at any point other than the point of incorporation in the work, in no way shall be considered as a guarantee of acceptance of such m aterial, or of continued acceptance of material presumed to be similar to that upon which inspections and tests have been made. Manufacturer's warranties, guarantees, instruction sheets, and parts lists, which are furnished with certain articles or materia ls incorporated in the work, shall be delivered to the Water Division before final acceptance. In certain instances, the Water Division Engineer may require electronic format of submittals. Specific requirements for water facilities are described as follo ws.
Fusible PVC pipe shall be manufactured to conform to the latest version of AWWA C900. Fusible PVC shall be blue in color, pressure Class 305, and DR -14, or approved equal pipe. The pipe shall be tested at the extrusion facility for properties required to meet all applicable parameters as outlined in the latest version of AWWA C900, applicable sections of ASTM D2241, ASTM D3034, or ASTM F679. Testing priority shall be in conformance with the lates t version of AWWA C900, which shall be tested to those standards. All piping shall be made from a PVC compound conforming to cell classification 12454 per ASTM D1784. Testing shall be in accordance with the latest version of AWWA standards for all pipe ty pes. Pipe shall be homogeneous throughout and be free of visible cracks, holes, foreign material, blisters, or other visible deleterious faults. Fusible polyvinylchloride pipe shall be extruded with plain ends. The ends shall be square to the pipe and fr ee of any bevel or chamfer. There shall be no bell or gasket of any kind incorporated into the pipe. Fusible polyvinylchloride pipe shall be manufactured in a standard 40 -foot nominal length. Each pipe shall be marked to conform to the latest version of AWWA C900, and shall include as a minimum: • Nominal pipe size • PVC • Dimension Ratio, Standard Dimension Ratio, or Schedule • AWWA pressure class • AWWA Standard designation number • Extrusion production -record code • Manufacturer’s trademark or trade name • Cell Clas sification 12454 and/or PVC material code 1120 may also be included
C900 PVC pipe shall be manufactured to conform to the latest version of AWWA C900. PVC pipe shall be blue in color, pressure Class 305, and DR -14, or approve d equal pipe. The pipe shall be tested at the extrusion facility for properties required to meet all applicable parameters as outlined in the latest version of AWWA C900, applicable sections of ASTM D2241, ASTM D3034, or ASTM F679. Testing priority shall be in conformance with the latest version of AWWA C900, except for pipe made to the ASTM D3034 or ASTM F679 standards, which shall be tested to those standards. All piping shall be made from a PVC compound conforming to cell classification 12454 per ASTM D1784. Testing shall be in accordance with the latest version of applicable AWWA standards for all pipe types. Pipe shall be homogeneous throughout, and be free of visible cracks, holes, foreign material, blisters, or other visible deleterious fault s. The ends shall be square to the pipe and free of any bevel or chamfer. Pipe shall be manufactured in a standard 20 -foot nominal length. Each pipe shall be marked to conform to the latest version of AWWA C900, and shall include as a minimum: • Nominal pip e size • PVC • Dimension Ratio, Standard Dimension Ratio or Schedule • AWWA pressure class • AWWA Standard designation number • Extrusion production -record code • Manufacturer’s trademark or trade name • Cell Classification 12454 and/or PVC material code 1120 may also b e included
Ductile iron pipe shall be zinc -coated and manufactured to conform to the latest version of AWWA C151 and designed to conform to the latest version of AWWA C150. Cement mortar lining shall be required to conform to the l atest version of AWWA C104. The coating materials shall be metallic zinc wire with a zinc content of at least 99.99 percent by mass, and bituminous paint topcoat compatible with zinc. The interior pipe lining shall conform to the latest version of AWWA C 151. Each pipe shall be marked to conform to the latest AWWA standard and shall include as a minimum: • Nominal size • DIP • Pressure class • Nominal thickness • Manufacturer’s mark and year • Zinc coating and thickness DIP shall be pressure class 350. Joint type sh all be “push -on joint” standard with the manufacturer, except where shown otherwise on plans. DIP shall be zinc -coated U.S. Pipe, or approved equal. The mean mass of the metallic zinc coating shall be a nominal of 200 grams per square meter, with a minimu m of 170 grams per square meter when measured in accordance with the section titled “Test Method for Determining Zinc Mass” of this specification. Use of regular DIP (i.e., not zinc -coated) shall be at the sole discretion of the Water Division Engineer an d will require the installation of magnesium anodes. All ductile iron pipe and associated fittings shall be encased with V -Bio polyethylene encasement (polywrap) in accordance with ANSI/AWWA C105/A21.5, ASTM A674, ISO, or approved equal. Encasement shall be secured with 2 -inch -wide polyvinyl pipe wrap tape .
All ductile iron fittings shall be exterior coated and conform to the latest version of AWWA/ANSI C116/A21.16 (Protective Fusion -Bonded Epoxy Coatings for the Interior a nd Exterior Surfaces of Ductile -Iron and Gray -Iron Fittings). Use of regular non -coated fittings shall be at the sole discretion of the City and will require installation of magnesium anodes. Ductile Iron fittings shall conform to the latest version of AW WA C110 or AWWA C153 and shall have the same cement mortar lining specified for ductile iron pipe.
Restrained joints shall be installed as shown in the approved plans, conform to all applicable City and latest version of AWWA st andards and the following: • Pipe Joints (bell and spigot) : PVC Bell Restraints rate for Class 305 PVC DR -14 Pipe shall be “Bulldog” or approved equal. At joints where “Bulldog” restraints cannot be used, EBAA Iron 1500 Series PVC Bell Restraints or approved equal. • Pipe Joints (fittings) : Ductile iron mechanical joint fittings with restrained locking glands rated for Class 305 PVC pipe shall be used. Joint restraint shall be EBAA Iron Series 2000PV Mechanical Joint Restraint or approved equal.
Restrained joints shall be installed as shown in the approved plans, conform to all applicable City and AWWA standards, and the following : • Pipe Joints (bell and spigot) : DIP restraint gaskets shall be U.S. Pipe TYTON JOINT Pipe with FIELD LOK Gaskets or approved equal. • Pipe Joints (fittings) : Ductile iron mechanical joint fittings with restrained locking glands shall be EBBA Iron MEGALUG or approved equal.
All stainless -steel bolts and studs shall be the proper length to ensure proper bolt -up is achieved between two Class 125 Standard Cast Iron Flanges, flanged valve and cast -iron flange, and any other flanged configuration. All bolts, studs, nuts, and washers shall be Type 304 Stainless Steel with Teflon blue nuts and conform to the latest version of AWWA C111.
All stainless -steel bolts and studs shall be the proper length to ensure proper bolt -up is achieved between two Class 125 Standard Cast Iron Flanges, flanged valve and cast -iron flange, and any other flanged configuration. All bolts, studs, nuts, and washers shall be Type 304 Stainless Steel with Teflon blue nuts and conform to the latest version of AWWA C111.
Flanged adapters shall be Rockwell International, Baker Series, or Columbus Standards, Inc. All bolts, studs, nuts, and washers shall be Type 304 Stainless Steel with Teflon blue nuts.
All stainless -steel bolts and studs shall be the proper length to ensure proper bolt -up is achieved between two Class 125 Standard Cast Iron Flanges, flanged v alve and cast -iron flange, and any other flanged configuration. All bolts, studs, nuts, and washers shall be Type 304 Stainless Steel with Teflon blue nuts and conform to the latest version of AWWA C111.
Gate valves shall be a resilient -seated type and manufactured to conform to the latest version of AWWA C -509 and be non -rising stem with square operating nut, open left, and have stainless steel nuts and bolts. Gate valves used for combination air and vacuum valves shall be Mueller H -10914 or approved equal. All certified drawings and parts lists shall be submitted to the Water Division Engineer. Gate valves shall be used for all pipe sizes smaller than 12 inches, unless otherwise approved by the Water Division Engineer.
Butter fly valves shall be manufactured to conform to the latest version of AWWA C504. Valves and operators shall be class 250 and constructed for direct burial applications. Unless otherwise approved, butterfly valves shall be manufactured by Mueller Company, Kennedy Valve Manufacturing Company, or Henry Pratt Company. The valve operators shall conform to the latest version of AWWA C504 and shall be designed to hold the valves in an intermediate position between fully open and fully closed without fluttering or creeping. Manual valve operators shall be of the worm -gear or traveling -nut type and fully enclosed. Adjustable stops shall be provided to stop valves in the fully opened and fully closed positions. Valves shall open with a counter -clockwise rotation of a 2 -inch square operating nut. The minimum number of turns to close the valve shall not be less than two turns per inch of valve size. Operator components shall, at the extreme operator position, withstand without damage an input torque of 300 ft -lbs. Th e Contractor shall submit all certified drawings and parts lists of the valve and operator to the Water Division Engineer. Butterfly valves shall be used for pipe sizes 12 inches and larger, unless otherwise approved by Water Division Engineer.
Combination air -release and vacuum valves shall be A.R.I. D -040 or approved equal and be manufactured to conform to the latest version of AWWA C512 and be designed for a working pressure of 150 psi. Combination valves shall c onsist of an air and vacuum valve with an air -release valve connected to its chamber, and a drainage valve at the base (for testing and maintenance purposes). The valve shall be capable of: (1) venting large quantities of air when not under water pressure; (2) permitting the entry of air to prevent a vacuum; and (3) positive action in releasing air entrained in water under pressure. The valve body and cover shall be cast iron, trim shall be bronze, and float shall be stainless steel. Cast -iron parts shall be coated to retard corrosion.
Fire hydrants shall be vertical flange shoe and "Dry Barrel" manufactured to conform to the latest version of AWWA C502, and shall be Mueller "Super Centurion," American Darling "B -62 -B" or Kennedy "Guardi an." No substitutes accepted. Fire hydrant valves shall be slow opening. All hydrants shall be 6 -inch mechanical joint inlets. The upper portion of each hydrant shall be painted aluminum color before project is completed. Fire hydrant (DB Marker 6) pavem ent markers shall be installed on all streets (public and private) per Standard Specification W -21.
Transition and flexible couplings shall be manufactured to conform to the latest version of AWWA C111, and shall be Rockwe ll International Type 441, Baker, Dresser, Ford, and Smith -Blair, or approved equal. Transition and flexible couplings shall be cast -iron or steel sleeves with wedge -type rubber gaskets suitable for use in potable water supply systems. The coupling shall be designed for 150 -psi working pressure, unless otherwise approved by the Water Division Engineer. Each coupling shall be sized to properly fit the ends of the two pieces of pipe being joined and have a sufficient number of bolts to compress the gasket wi thout distorting the followers.
Copper service tubing, fittings, saddles, et al., shall be manufactured to conform to ASTM Specifications B88 -47 Type K soft copper and the latest version of AWWA C800. The tubing shall be installed without splicing in lengths up to 50 feet, where possible.
Miscellaneous appurtenances, including check valves, service materials, saddles, regulator valves, insulators, pumps, pressure tanks, valve boxes, and miscella neous hardware shall be of the type shown on the plans and/or submittals, and be of a quality acceptable to the Water Division Engineer. Upon request, Contractor shall deliver samples of any such miscellaneous appurtenances to the Water Division Engineer f or examination and testing and, if rejected, remove all similar appurtenances from the job site, including that which may have already been installed.
Anodes shall be prepackaged high potential magnesium anodes. Lead wire for the an odes shall be 30 feet long, No. 10 AWG solid -copper wire with black RHW -USE insulation. Lead wires shall be silver -soldered to anode core with the connection encapsulated in epoxy resin. All metallic fittings shall be continuity bonded or directly bonded to an anode.
• Open cut : Bond wire shall be No. 10 AWG/HMWPE bond cable and shall be installed for all non -epoxy coated metallic joints, bell, and spigot connections; tie -in points; and valves to ensure connectivity along entire water m ain installation. • Horizontal Directional Drilling : Bond wire shall be No. 8 AWG/HMWPE bond cable and shall be installed for all non -epoxy coated metallic joints, bell, and spigot connections; tie -in points; and valves to ensure connectivity along entire wa ter main installation.
Tracer wire shall be taped to the top of the pipe at a minimum of 5 -foot intervals, and at all crosses, tees, and elbows. When taping tracer wire to pipe, wrap the tape once around the tracer wire before wrapping the ta pe around the full diameter of the pipe. Tracer wire material shall be installed as follows: • Open Cut : Tracer wire shall be at a minimum No. 10 AWG annealed bare copper UF solid type wire with cross -linked polyethylene insulation minimum 30 mil thickness or subject to the approval of the Water Division Engineer. The insulation shall be blue in color. Connectors shall have a dielectric gel and must be sealed. • Horizontal Dire ctional Drilling : Tracer Wire No. 8 CCS Extra High Strength Hard Drawn 1150 lb. or approved equal, and installed for all non -metallic pipe. HDPE coating with minimum 45 mil thickness. The insulation shall be blue in color.
Sand Bedding shall conform to the following specifications: CLEAN WASHED UTILITY SAND
Controlled Low Strength Mate ri al (CLSM) sha ll be a hand -excavatable, self -leveling, self -compacting mixture of c ement , pozzolan, coarse and fine aggregate and water which has been mixe d in accordance with ASTM C 94 and is in a flowable state during p lace me nt . Prior to beginning any work, you shall submit to the City Engineer for review, the proposed CLSM mix des ign s which shall show the proportions and gradations of all materials proposed for each class and type of CL SM to be used. Density shall be between 120 PCF minimum and 135 P CF ma ximum. Compressive strength at 28 days for flowable CLSM shall be between 50 psi minimum and 150 psi maximum. Cement shall be Type II in accordance with the requirements of ASTM C 150. Pozzolan sh all be added to improve th e flowability and shall be Type F in accordance with the requirements of ASTM C 618. Co arse and fine aggregate may include native soil materials derived and separated from project excavations. Aggregate shall consist of sands and gra vels with fines content not exceeding 30 per cen t. Fines content shall have a plasticity inde x of 3 or less. Clay balls formed by fines shall not exceed 10 per cent on a wet mass basis. The maximum size of any cla y balls shall not exceed ½-inch . The maximum particle size in the soil cannot exceed 1/8 of the open distance b etween the pi pe and the trench wall or 1 -1/2 inc h, which ever is less. All material shall be free from organic matter and not contain more alkali, sulfa te , or sa lts than the n ative materials at the job site. CL SM shall be delivered to the job
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