SUB WATER DEPARTMENT STANDARD CONSRTUCTION SPECIFICATIONS TABLE OF CONTENTS DIVISION W-400 WATER REQUIREMENTS

Transcription

1 SUB WATER DEPARTMENT STANDARD CONSRTUCTION SPECIFICATIONS TABLE OF CONTENTS DIVISION W-400 WATER REQUIREMENTS W WATER MAINS AND APPURTENANCES W DESCRIPTION W MATERIAL W General W Water Line Pipe W A Ductile Iron Pipe W B PVC Pipe W C Schedule 80 PVC Pipe W D Copper Water Tubing W E Polyethylene (PE) Pipe and Service Tubing ¾ inch, 1 inch, and 2 inch W F Polyethylene (PE) Pipe 4 inches through 63 inches for Water Distribution W G PVC Duct W H Tracer Wire W Water Line Fittings W A Ductile Iron W B Cast Bronze Fittings W C Brass/Bronze Fittings W C1 Corporation Stops W C2 Angle Meter Valves W C3 Couplings and Unions W Non-Metallic Fittings W A Schedule 80 Fittings W B PVC Couplings W C Polyethylene (PE), 2 inch through 63 inch, Butt-Fusion Fittings W D Polyethylene (PE) Fittings, ¾ inch and Larger Electrofusion Fittings W Service Saddles W Mechanical Couplings W Pipe Joints W A Flanged Joint W B Mechanical Joints Index Page i

2 W C Push-on Joints W D Solvent Weld W E Fusion Welded Joints W E1 Butt-Fusion Welded Joints W E2 Electrofusion Welded Joints W Valves and Accessories W A Bronze Body Gate Valves W B Ball Valves W C Resilient-Seated Gate Valves W D Butterfly Valves W E Tapping Valves and Sleeves W F Valve Operator Extensions W G Adjustable Valve Boxes W G1 Valve Box Lids W G2 Valve Box Ring W G3 Valve Box Insert W G4 Valve Box Riser W H Combination Air Valves W Thrust Restraint W A Concrete For Anchorage and Reaction Blocking W B Mechanical Joint Restraint Devices W C Weldment Ring Restraint Joint W D Push-On-Joint Restraining Gaskets W Fire Hydrants W A Fire Hydrant Extensions W Polyethylene Meter Boxes W CONSTRUCTION/WORKMANSHIP W Progress of Construction W Transporting and Handling of Materials W Storage of Materials W Distribution of Materials W Placing of Materials in the Trench W A Tracer Wire W Sanitary Practices During Installation W Cutting W Allowable Deflection at Joints W Jointing W A Flanged Joints Index Page ii

3 W B Mechanical Joints W C Weldment Ring W D Push-on Joint W E Screwed Joints W F Solvent Weld W G Fusion Weld W Assemblies W A Fire Hydrants W B Meter Boxes W C Valves and Valve Tiles W D Fittings W E Tapping Valves W F Air Valves W G Dead-end Mains and Flush Points W H Services W I Tracer Wire W Anchorage W Deviations From Plans W Filling the Main W Flushing W Sterilization W A Dechlorination W Tapping Existing Mains W Operation of Existing Valves W TESTING W Hydrostatic Testing W A Pressure Testing W B Leakage Testing W Bacteriological Testing W Conductivity Testing W MEASUREMENT AND PAYMENT W Pipe installation W Assemblies W Services W Incidentals Index Page iii

4 DIVISION W-400 WATER REQUIREMENTS W WATER MAINS AND APPURTENANCES W DESCRIPTION This section covers the pipes, fittings, services, and appurtenant materials normally used for water distribution systems and the care in transporting, handling, and storage of such materials in addition to the sanitation, installation, flushing, and sterilization requirements for the construction of water lines. Unless specified herein, pipe installation shall be performed in strict conformance with the manufacturer's recommendations. W MATERIAL W General Materials shall be furnished by either the Contractor or by SUB as indicated in the proposal. The Contractor's responsibility for material shall begin at the point of delivery thereof to said Contractor or on the day of the award of the Contract for materials existing on the construction site prior to that time. The Contractor shall examine all material at the time and place of delivery to him and shall reject all defective material. Materials shall conform to all specified requirements and shall have been manufactured in the United States, unless otherwise approved by the Engineer. Records of specific tests and/or affidavits of compliance shall be supplied for appropriate materials upon request. Pursuant to Oregon Administrative Rules Chapter (1)(e), only materials designed for potable water service and meeting National Sanitation Foundation (NSF) Standard 61, Section 9 Drinking Water System Components Health Effects, or equivalent, shall be used in those elements of the water system which are in contact with potable water. W Water Line Pipe W A Ductile Iron Pipe Unless otherwise specified, all pipe for water mains shall be cement mortar lined ductile iron pipe in conformance with AWWA C151 (ANSI A21.51) classes 50 through 56 with joint ends as specified on the Plans. Cement mortar lining shall be in conformance with AWWA C104 (ANSI A21.4). The minimum thickness classes shall be Class 52 for 4-inch pipe and 6-inch pipe, and Class 50 for pipe 8 inches and larger. Under extreme conditions, such as in deep trenches and/or corrosive soils, higher thickness classes may be required as indicated on the Plans. Materials and installation for electrical continuity or bond bars, as may be necessary in corrosive soils, shall be as described in the Special Provisions. All ductile iron pipes furnished to SUB shall include a minimum of 10% fully gauged pipe. S:\Engineering\Standards\Std. Const. Specs\For SUB Web\W-400 for Web.docx 104

5 Acceptable ductile iron pipe: American U.S. Pipe Pacific States W B PVC Pipe C-900 PVC pipe for water mains 4 inches through 12 inches, unless otherwise specified, shall meet the requirements of AWWA C900 for pressure Class 150. Dimension Ratio (DR) shall be 18 or less. Joints shall be push-on type with elastomeric gaskets and integral wall section bell ends. C-905 PVC pipe for water transmission mains 14 inches through 36 inches, unless otherwise specified, shall meet requirements of AWWA C905 for pressure Class 160. Dimension Ratio (DR) shall be 25 or less. Joint shall be push-on type with elastomeric gaskets and integral wall section bell ends. Acceptable PVC pipe: North American Pipe Corporation (NAPCO) JM Eagle Diamond Plastics Corp. Fusible C-900 PVC pipe for water mains 4 inches through 12 inches, unless otherwise specified, shall meet the requirements of AWWA C900 for pressure Class 150. Dimension Ratio (DR) shall be 25 or less. Joints shall be thermal butt fusion. Fusible C-900 PVC pipe for water transmission mains 14 inches through 36 inches, unless otherwise specified, shall meet requirements of AWWA C905 for pressure Class 160. Dimension Ratio (DR) shall be 25 or less. Joints shall be thermal butt fusion. W C Schedule 80 PVC Pipe Schedule 80 PVC pipe for water mains and services 3/4 inch, 1 inch, 11/2 inch, and 2 inch shall meet the requirements of ASTM D1785. Joints shall be as specified in the Plans or Standard Details. Acceptable Schedule 80 PVC pipe: JM Eagle North American Pipe Corporation (NAPCO) Ridgeline Crestline Diamond Plastics Corp. S:\Engineering\Standards\Std. Const. Specs\For SUB Web\W-400 for Web.docx 105

6 W D Copper Water Tubing Seamless copper tubing shall be supplied in conformance with ASTM B-88, Type K, soft. W E Polyethylene (PE) Pipe and Service Tubing ¾ inch, 1 inch, and 2 inch PE pipe for ¾ inch and 1-inch service lines shall be copper tube size (CTS). PE pipe size 2 inch shall be iron pipe size (IPS). Pipe shall be rated at 200 psi; have SDR of 9; conform to ASTM D2239 (pipe) or D2737 (tubing) and AWWA C901; and be made from ultra-high molecular weight high-density polyethylene (PE 3608/4710). All pipe and service tubing supplied under this specification shall come with a minimum 50-year manufacturer s warranty. Acceptable ¾-inch, 1-inch, and 2-inch PE pipe: Performance Pipe JM Eagle Interstate ADS Insert stiffeners shall be installed in all PE connections by compression joint to fittings. Inserts appropriately sized for insertion into ¾ inch and 1-inch PE pipe shall be manufactured from thermoplastic and be specifically designed to prevent the collapse of PE water service line pipe. Acceptable insert stiffeners: Mars Insert Stiffeners W F Polyethylene (PE) Pipe 4 inches through 63 inches for Water Distribution PE pipe 4 inch and larger shall be iron pipe size (IPS) OD. Pipe shall be pressure class rated at 200 psi and have SDR of 9 unless otherwise specified on the plans. Pipe shall conform to ASTM D3035 (pipe) and AWWA C906, and be made from ultra-high molecular weight high density polyethylene PE 3608/4710 (ASTM D3350), cell classification C minimum. Certified copies of physical and chemical test results shall be submitted for the materials to be provided. An affidavit of compliance and certification of special quality assurance testing shall also be submitted. Acceptable PE pipe: Interstate Performance Pipe JM Eagle W G PVC Duct PVC duct used for long service installations shall be Schedule 40 conduit with integral female socket for solvent weld joint or SDR11 HDPE. Size will be 3 inches, unless otherwise specified in the plans. S:\Engineering\Standards\Std. Const. Specs\For SUB Web\W-400 for Web.docx 106

7 W H Tracer Wire All water pipe shall have a copper tracer wire installed with it per the Standard Details. Tracer wire shall be 14 gauge solid copper with a minimum 40 mil PVC or HDPE insulation, blue in color, rated specifically for direct burial. W Water Line Fittings W A Ductile Iron All tees, crosses, elbows, reducers, combinations thereof, and other miscellaneous iron fittings shall be cement lined ductile iron in conformance with AWWA C110 (ANSI A21.10) or AWWA C153 (ANSI 2l.53). Ductile Iron material shall be ASTM A536. Cement lining shall be in conformance with AWWA C104 (ANSI A21.4). Joint ends and lay length of the fittings shall be as specified on the Plans. All joints shall be in full compliance with AWWA C111 except bolts shall be low alloy steel. High Strength Cast Iron Bolts (HSCI) are specifically excluded. Unless otherwise noted on the Plans, all fittings shall have minimum pressure ratings of 150 psi. Fitting manufacturers shall be ISO 9000 Certified. Proof of certification shall be submitted prior bidding the manufactures fittings. Acceptable ductile iron fittings: American U.S. Pipe Tyler Union Foundry Trinity Valley Bachman Sigma Star W B Cast Bronze Fittings Cast bronze fittings for making screwed joint connections shall conform to ANSI B Cast bronze fittings for underground water service line fittings shall conform to ASTM B62 for alloy content and AWWA C800 for thread configuration. Acceptable cast bronze fittings: Mueller Ford McDonald W C Brass/Bronze Fittings W C1 Corporation Stops Corporation stops for water services, air valves, chlorinating, and testing shall be supplied in conformance with AWWA C800 and ASTM B62, Mueller male (CC) corporation valve inlet thread, unless otherwise noted on the Plans. Outlet to be compression joint or Mueller Instatite for copper tube size (CTS). S:\Engineering\Standards\Std. Const. Specs\For SUB Web\W-400 for Web.docx 107

8 Acceptable Corporation stops: Mueller Ford McDonald W C2 Angle Meter Valves Angle meter valves shall be supplied in conformance with AWWA C800 and ASTM B62. Inlet to be compression joint or Mueller Instatite for CTS. Acceptable angle meter valves: 5/8-inch x 3/4-inch Meter 1-inch Meter Ford McDonald Ford McDonald Mueller Mueller W C3 Couplings and Unions Couplings and unions shall be supplied in conformance with AWWA C800 and ASTM B62. Connections to service lines shall be compression joint or Mueller Instatite for CTS. Acceptable couplings and unions: Ford McDonald Mueller W Non-Metallic Fittings W A Schedule 80 Fittings Schedule 80 PVC fittings for 3/4 inch through 2 inch shall be socket type for solvent weld assembly and conform to ASTM D2467. Acceptable Schedule 80 PVC fittings: Harco Lasco Nibco Spears W B PVC Couplings PVC gasketed couplings 2 inch through 12 inch for Sch 80 and C900 PVC pipe shall conform to ASTM D1784 and have a minimum pressure rating of 150 psi and DR18. Bells and gaskets shall conform to ASTM D3139 and ASTM F477. Acceptable PVC couplings: Harco Specified Fittings S:\Engineering\Standards\Std. Const. Specs\For SUB Web\W-400 for Web.docx 108

9 W C Polyethylene (PE), 2 inch through 63 inch, Butt-Fusion Fittings Connections between polyethylene and other piping shall be made using fittings suitable for such purposes. Polyethylene fittings shall be of the same class as the polyethylene piping. PE fittings 2 inch and larger shall be iron pipe size (IPS) OD. Fittings shall be pressure class rated at 200 psi and have SDR of 9 unless otherwise specified on the plans. Fittings shall conform to AWWA C901 or AWWA C906, and be made from ultra-high molecular weight high density polyethylene PE 3608/4710(ASTM D3350), cell classification C minimum that carries a NSF Standard 61 listing for use with potable water. Butt-fusion fittings covered by this standard include all fittings intended to be joined to polyethylene piping by heat fusion. Fittings shall meet the requirements of ASTM 3261 for butt-fusion type fittings. An affidavit of compliance and certification of special quality assurance testing shall also be submitted. Acceptable PE butt-fusion fittings: Central Plastics Company HARCO W D Polyethylene (PE) Fittings, ¾ inch and Larger Electrofusion Fittings Polyethylene electrofusion fittings shall meet all of the material specifications and certifications in W A above. In addition electrofusion fittings shall be tested and supplied in accordance with AWWA C906 specifications and have a 24 digit ISO compliant barcode label that facilitates fusion of the fitting with other manufacturers electrofusion processors. Wire heating elements and connections shall allow for continual monitoring of the fusion cycle and be guaranteed to provide a joint that is as strong as the pipe material and be leak free. Acceptable polyethylene electrofusion fittings: Central Plastics Company MTD Trifusion Performance Pipe Poly-Cam Tega Frialen W Service Saddles Service saddles will have a CI body with Mueller cc thread outlet for 3/4 inch and 1-inch taps or female iron pipe thread (FIPT) for 2-inch taps unless otherwise specified in the plans. CI bodies will be nylon coated for corrosion protection. All bodies for use on C- 900/905 PVC pipe will be preformed to the OD pipe size of the pipeline being tapped. All saddles will have stainless steel straps, nuts, and washers. Acceptable service saddles: Romac Ford Smith Blair S:\Engineering\Standards\Std. Const. Specs\For SUB Web\W-400 for Web.docx 109

10 W Mechanical Couplings Mechanical couplings shall consist of a high strength cast or ductile iron sleeves, ductile or malleable iron follower rings, vulcanized rubber gaskets, and ductile iron or stainless steel bolts and hex nuts. Mechanical couplings shall have a minimum pressure rating of 150 psi. Acceptable mechanical couplings: Romac Style 501 Smith Blair Romac Macro W Pipe Joints W A Flanged Joint Flanged joints for ductile iron pipe shall be in conformance with AWWA C115 (ANSI A21.15). Gaskets shall be 1/8-inch thick rubber, either ring or full face, conforming to the pipe manufacturer's requirements. Bolts and nuts shall be low carbon steel conforming to ASTM A307, Grade B. Bolts and nuts shall be zinc plated. W B Mechanical Joints All components of mechanical joints shall be in conformance with AWWA C111 (ANSI A21.11) except bolts shall be low alloy steel. High strength cast iron bolts (HSCI) are specifically excluded. Unless otherwise specified, gaskets and glands shall be provided by the manufacturer supplying the pipe or fitting on which they are to be used. W C Push-on Joints Single rubber gasket push-on joints shall conform to AWWA C111 (ANSI A21.11) or AWWA C900 as applicable. Unless otherwise specified, gaskets and lubricant shall be provided by the manufacturer of the pipe or fitting on which they are to be used. W D Solvent Weld Schedule 80 PVC pipe fittings shall be solvent welded using primer and heavy bodied PVC cement according to the manufacturer specifications and in accordance with the Uniform Plumbing Code. S:\Engineering\Standards\Std. Const. Specs\For SUB Web\W-400 for Web.docx 110

11 W E Fusion Welded Joints W E1 Butt-Fusion Welded Joints All fusion welded joints shall be made under the direct supervision of a factory certified operator. Sections of polyethylene pipe shall be joined into continuous lengths on the job site above ground per ASTM D3261. The joining method shall be by thermal butt-fusion method and shall be performed in strict accordance with the pipe manufacturer s recommendations. The butt-fusion equipment used in the joining procedures shall be capable of meeting all conditions recommended by the pipe manufacturer, including, but not limited to, temperature requirements of 400 F, alignment, and 75 psi interfacial fusion pressure. Butt-fusion joining shall be 100 percent efficient offering a joint weld strength equal to or greater than the tensile strength of the pipe and shall be leak free. Extrusion welding, or hot gas welding, of HDPE shall not be used for pressure pipe applications or in fabrications where shear or structural strength is important. W E2 Electrofusion Welded Joints All fusion welded joints shall be made under the direct supervision of a factory certified operator. When electrofusion joints are allowed by the design and project specifications the following shall apply: Electrofusion shall be performed in strict accordance with the manufacturers recommendations. The electrofusion equipment used shall meet all of the fitting and pipe manufacturer conditions including, but not limited to, temperature requirements of 400 F, alignment, clamping, cleaning and pipe preparation, electrical attachments, continual process monitoring, fault identification, and warning. Electrofusion joining shall be 100 percent efficient offering a joint weld strength equal to or greater than the tensile strength of the pipe and shall be leak free. W Valves and Accessories W A Bronze Body Gate Valves Bronze gate valves shall be domestic Class 125 non-rising stem solid disc type with screwed or union bonnet and threaded ends. Body, bonnet, and disc shall be ASTM B62 bronze. Stems shall be copper silicon alloy, or other approved corrosion resistant materials with equal characteristics of strength and durability. The disc shall clear the port area completely in the fully opened position. Threaded ends shall conform to ANSI B Acceptable bronze gate valves: Hammond Jenkins AY McDonald Nibco T-113 S:\Engineering\Standards\Std. Const. Specs\For SUB Web\W-400 for Web.docx 111

12 W B Ball Valves Acceptable bronze or stainless steel body ball valves: Apollo Watts B 6000 Hammond AY McDonald Ford W C Resilient-Seated Gate Valves Resilient-seated gate valves shall meet or exceed the provisions of AWWA C509 and shall be a nonmetallic seat, non-rising stem type with O-ring seals and a 2-inch square operating nut which opens the valve when turned counter clockwise. With the valve fully open, an unobstructed waterway not less than the full nominal diameter of the valve shall be provided. Valves shall have joint ends as specified on the Plans. Acceptable resilient-seated gate valves: Kennedy "Ken-Seal" 7000 M & H Mueller Waterous "Series 2500" W D Butterfly Valves Butterfly valves shall meet or exceed the provisions of AWWA C504 Class 150B. Butterfly valves shall be short bodied, cast iron construction with joint ends as specified on the Plans. All valves shall be of the tight-closing type with two-way thrust bearing and shall be equipped with a 2-inch square operating nut which opens the valve when turned counterclockwise. Acceptable butterfly valves: Pratt "Ground Hog" M & H 4500 Mueller "Lineseal III" W E Tapping Valves and Sleeves Tapping valves shall have a flange on one end for bolting to the sleeve and a flanged or mechanical joint outlet on the other which readily accommodates adapters for all standard tapping machines. The valves shall have oversized seat rings to accommodate full-sized cutters. The valves shall meet provisions of AWWA C509 with non-rising stem, O-ring seals, and 2-inch square operating nut, opening counter clockwise. Acceptable tapping valves: Mueller Kennedy Tapping sleeves shall be stainless steel construction with a flanged outlet for bolting to the tapping valve. Sealing shall be accomplished by a single rubber gasket around the tap opening. Bolts and nuts shall be stainless steel. S:\Engineering\Standards\Std. Const. Specs\For SUB Web\W-400 for Web.docx 112

13 Acceptable tapping sleeves: Romac "SST" Series III JCM Ford W F Valve Operator Extensions The valve operator extension shall be constructed as shown on Standard Detail W1.18. The valve wrench cup and operating nut shall be attached to the ends in such a manner as to withstand without damage an input torque of 300 foot-pounds. W G Adjustable Valve Boxes W G1 Valve Box Lids Valve box lids shall be constructed of cast iron per Standard Detail W1.16 with "Water" cast into it. Valve box lids shall be cleaned after manufacture and painted blue prior to shipment. Acceptable valve box lids: Silverton Foundry Union Foundry W G2 Valve Box Ring Valve box ring for use in concrete structures shall be constructed of cast iron per Standard Detail W1.16. Dimensions to accept W G1 valve box lid. Acceptable valve box ring: Silverton Foundry W G3 Valve Box Insert Valve box insert shall be constructed from rolled 20 gauge galvanized steel sheet metal per Standard Detail W1.16. Acceptable valve box insert: Brainard Sheet Metal, Springfield Smith Sheet Metal, Springfield Elliots Sheet Metal, Eugene W G4 Valve Box Riser Valve box riser shall be an 8 inch ASTM 3034 PVC pipe. Acceptable valve riser pipe: North American Pipe Corporation (NAPCO) JM Eagle CertainTeed Diamond Plastics Corp. Crestline S:\Engineering\Standards\Std. Const. Specs\For SUB Web\W-400 for Web.docx 113

14 W Thrust Restraint W H Combination Air Valves Air valves shall be combination air-release/vacuum type which permit entrained air to escape from the line while retaining water upon filling and which permit a reverse flow of air into the line upon draining. All internal parts shall be either stainless steel or bronze or other approved non corrodible material. Acceptable combination air release valves: APCO 143C or 145C Valmatic 201C A.R.I D-40 W A Concrete For Anchorage and Reaction Blocking Concrete for anchorage and reaction blocking shall be a concrete mix, which shall provide a minimum 28 day strength of 3000 psi. W B Mechanical Joint Restraint Devices Mechanical joint restraint systems shall be incorporated in the design of the follower gland or gasket and may include a restraining ring which, when actuated by a wedging action with the gland, imparts a restraining force against the pipe that increases as the pressure increases or be completely integral to the gasket. Glands shall be manufactured of ductile iron meeting ASTM A 536. Dimensions of the gland shall be such that it can be used with the standard mechanical joint bell, gasket, and tee-head bolts in accordance with ANSI/AWWA C110/A21.10, ANSI/AWWA C111/A21.11, and ANSI/AWWA C153/A21.53 or the latest revision. The mechanical joint restraint device shall have a working pressure of at least 250 psi with a minimum safety factor of 2:1. The restraining system shall be rated in accordance with the performance requirements of ANSI/AWWA C111/A Acceptable restraint devices: For Ductile Iron For C900 PVC EBAA Megalug EBAA Megalug Romac Grip Ring Romac Grip Ring Romac RomaGrip Romac RomaGrip Tyler/Union MJ Field LOK (DI) Tyler/Union MJ Field LOK (PVC) Tyler Tuff Grip Tyler Tuff Grip W C Weldment Ring Restraint Joint Weldment ring restraint joints shall restrain the spigot end of the pipeline by use of restraining wedges that bear on a weldment ring shop welded to the spigot end of the pipe wall that restrains the joint even with joint deflection. S:\Engineering\Standards\Std. Const. Specs\For SUB Web\W-400 for Web.docx 114

15 The weldment ring joint restraint device shall have a working pressure of at least 250 psi with a minimum safety factor of 2:1. Acceptable pipe joint types are: American Flex-Ring U.S. Pipe TR-Flex Pacific States Thrust-Lock W D Push-On-Joint Restraining Gaskets Push-on joint restraining gaskets shall be provided by the manufacturer of the pipe being used. In no case are push-on joint gaskets to be used that are not provided by the pipe manufacture or approved in writing by the pipe manufacturer. All gasket materials shall be standard SBR which meets all the material requirements of ANSI/AWWA C111/A Gaskets provided shall be designed to meet or exceed the pressure rating indicated on the plans and shall have been tested at twice the designated working pressure of the pipe being used. The restraint provided by the gasket shall be by the development of wedging action between pairs of high-strength stainless steel elements spaced around the gasket. The outer metal element acts as a bearing member for the wedge-shaped inner element, which has sharp teeth on its inner surface for gripping the spigot. The force between the spigot and the socket of the joint shall be essentially constant at any given pressure thrust regardless of the "tightness" or "looseness" of the joint fit or the joint deflection. Acceptable push-on joint restraining gaskets: American U.S. Pipe Pacific States W Fire Hydrants Fire hydrants shall be dry barrel compression type in conformance with AWWA C502. Hydrants shall have two 2 1/2-inch hose connections with National Standard threading (7 1/2 threads per inch) and a 5-inch integral Storz pumper port. The hydrant main valve opening shall be 5 ¼ inches. Inlet connections shall be 6 inches. Hydrants shall have a 1 1/2-inch pentagonal operating nut, which opens the hydrant when turned counterclockwise. Seals shall be O-ring throughout. Hydrants shall be designed as traffic models with a safety breakaway flange. Depth of bury shall be as noted on the Plans. Acceptable fire hydrants: Mueller Centurion A423 Kennedy Guardian Waterous Pacer M&H Style 129 W A Fire Hydrant Extensions Extension assemblies for fire hydrants shall be supplied by the manufacturer of the hydrant for which the extension is required. S:\Engineering\Standards\Std. Const. Specs\For SUB Web\W-400 for Web.docx 115

16 W Polyethylene Meter Boxes Polyethylene meter boxes shall be one piece, molded construction. All edges shall be clean and smooth for safe handling. Covers shall be one piece, solid or with reader lid with dimensions appropriate for the meter box size, made of ductile iron. Acceptable polyethylene meter boxes: Mid-States Plastics, BC and BCF models Armorcast Rotocast Boxes (not polyethelene) Raven W CONSTRUCTION/WORKMANSHIP W Progress of Construction It is intended that the progress of the work shall be in a systematic manner so that as little inconvenience as possible will result to the public in the course of construction. It is necessary, therefore, that the Contractor confine his operation to as small a length of work per crew as is feasible. The length of trench excavated in advance of the pipe laying shall be kept to a minimum and in no case shall the trench be left open overnight unless otherwise authorized by the Engineer. Complete back fill and cleanup shall progress as each section of pipe has been inspected and approved. W Transporting and Handling of Materials Every effort shall be made to ensure that all pipe, fittings, valves, hydrants, and other appurtenances are protected against damage during transport and that they are loaded and unloaded in such a manner as to avoid shock or damage. Under no circumstances shall such materials be dropped. Minor damage which may occur to materials shall, at the Contractor's option and with the Engineer's approval, be repaired by the Contractor in a manner satisfactory to the Engineer. Any material that the Contractor elects not to repair, or that in the judgment of the Engineer is damaged beyond repair, shall be removed from the job site. No payment will be made for any damaged material removed from the job site or for any cost incurred in the repair or removal of damaged materials. W Storage of Materials The Contractor shall be responsible for the safe storage of material furnished by or to him, accepted by him, and intended for use in the construction until it has been incorporated in the completed project. Materials shall be stored to assure preservation of their quality and fitness for the work. Pipe, fittings, valves, and hydrants shall be drained and stored in such a manner as to prevent water from collecting and pooling in them so as to protect them from damage by freezing and shall be kept free from dirt and other foreign matter at all times. Stored materials, even though approved before storage, may again be inspected prior to their use in the work and shall be located so as to facilitate their prompt re-inspection. Stored pipe shall be stacked on timbers off of the ground and timbers shall be placed between tiers and chocks nailed at each end to prevent movement of the pipe. The S:\Engineering\Standards\Std. Const. Specs\For SUB Web\W-400 for Web.docx 116

17 number of tiers stacked shall not exceed the manufacturer s suggested maximum allowable heights. Portions of the right-of-way approved by the Engineer may be used for storage purposes. Any additional space required shall be provided by the Contractor at his own expense. Private property shall not be used for storage purposes without written permission of the property owner. Copies of such written permission shall be furnished to the Engineer. W Distribution of Materials Materials shall be distributed along the proposed water line route no faster than can be installed in one day's work unless otherwise authorized by the Engineer. Materials distributed and not installed within a reasonable amount of time as determined by the Engineer shall be collected and properly stored by the Contractor at no extra cost until he is ready to proceed with the work. Materials shall be distributed in such manner as not to be damaged in the process and shall under no circumstances be dragged along the ground. Due consideration shall be given to the occupants of adjoining property, pedestrians, and vehicular traffic to assure no hazard will be presented. W Placing of Materials in the Trench All pipe, fittings, and hydrants shall be lowered into the trench in such a manner as to prevent damage. Prior to lowering materials into the trench, the Contractor shall check for damage and shall either repair or reject any damaged materials. All repair work shall be completed to the satisfaction of the Engineer prior to placing the material in the trench. Every precaution shall be taken to prevent foreign material from entering the pipe while it is being placed in the trench. If it is not possible to place the pipe in the trench and into position without getting earth into it, the Engineer may require that a suitable plug be placed in each end of the pipe before lowering it into the trench and left in place until the connection is made to the adjacent pipe. Debris, tools, rags, and other materials shall be kept out of the pipes at all times. Pipe shall be laid and joined one length at a time to the required line and grade. Pipe shall be placed with the bell end facing the direction of laying except for lines on a grade in excess of 15 percent, in which case, bells shall, at the direction of the Engineer, face upgrade. No pipe shall be laid when standing water exists in the trench or when trench conditions are otherwise unsuitable in the opinion of the Engineer. W A Tracer Wire All water mains and services shall have an electrically conductive tracer installed in the trench for locating the pipe in the future. The tracer wire shall be located in the bottom of the trench next to the pipe and run the full length of the installed pipe with each end clearly visible and able to be extended 12 inches above ground in each valve box and meter box. The tracer shall be spliced into the existing tracer wire at water main connection locations in accordance with Standard Detail W1.16. S:\Engineering\Standards\Std. Const. Specs\For SUB Web\W-400 for Web.docx 117

18 W Sanitary Practices During Installation All lumps, blisters, and excess coal tar coating shall be removed from the bell and spigot end of each pipe prior to installation. The outside of the spigot and the inside of the pipe shall be clean and dry and free from all foreign matter before the pipe is laid. If, in the opinion of the Engineer, the pipe contains dirt or other foreign matter that will not be removed during the flushing operation, the interior of the pipe shall be swabbed or otherwise cleaned as necessary to remove the contaminants. Each valved section of pipeline 4 inches, 6 inches, and 8 inches shall have installed appropriately sized foam "pigs" to aid in swabbing the pipeline during flushing operations. The number of "pigs" in each section will be dependent on flushing distance and the Contractor s flushing plans as approved by the Engineer. Whenever the trench site is left unattended, the open ends of the pipe shall be sealed with a water tight plug or cap to prevent trench water, animals, and foreign matter from entering the pipe. This shall apply during the noon hour, as well as overnight. If there is water in the trench, the seal shall remain in place as long as the water would otherwise be able to enter the pipe. Appropriate backfill and other actions must be taken to keep the pipe from floating up and off of grade or alignment. W Cutting The cutting of pipe for inserting valves, fittings, or closure pieces shall be done in such a manner as to prevent damage to the pipe or cement lining and so as to leave a smooth end at right angles to the axis of the pipe. The cut end of the pipe shall be ground smooth and, for push-on joint connections, shall be beveled in order to remove sharp edges which may damage the gasket. Any lining or coating damaged in the cutting process shall be repaired by the Contractor to the satisfaction of the Engineer. W Allowable Deflection at Joints When push-on or mechanical joint pipe is to be laid on a curve, either in the horizontal or vertical plane, the amount of deflection shall not exceed the maximum limits given in Table I below for each type of pipe joint or as recommended by the manufacturer. Where pipe lines are intended to be laid in a straight line, the deviation from the Plans for each section of pipe shall not be in excess of 0.2 feet for line and 0.1 feet for grade. W Jointing All jointing procedures shall be in strict accordance with the manufacturer's recommendations and as approved by the Engineer. The Contractor shall provide any special tools and equipment necessary for the installation. S:\Engineering\Standards\Std. Const. Specs\For SUB Web\W-400 for Web.docx 118

19 PIPE DIAMETER The following are given as general guidelines for each type of joint: TABLE I MAXIMUM DEFLECTION 18 FOOT DUCTILE IRON PIPE LENGTH PUSH-ON TYPE JOINT DEFLECTION ANGLE (Degree) MAXIMUM DEFLECTION (Inch) MECHANICAL JOINT DEFLECTION ANGLE (Degree) MAXIMUM DEFLECTION (Inch) W A Flanged Joints Contact faces and gaskets for flanged connections shall be free of all foreign matter before the connection is made. Flanged joints shall be fitted so that the contact faces bear uniformly on the gasket and then completed by tightening the bolts uniformly. Cast flanges and flanged fittings shall be properly anchored, supported, or restrained after installation to prevent breakage, and care shall be taken to prevent bending or torsional strains from being applied during the jointing procedure. W B Mechanical Joints After assuring that all joining surfaces are free from foreign matter, the pipe shall be inserted in the socket and the gasket pressed firmly and evenly into the gasket recess while keeping the joint straight. Bolts shall be tightened so that the gland is brought up evenly toward the pipe flange with the spigot and centrally located in the bell. The normal range of bolt torques for various sizes of bolts shall be given below. Over stressing of bolts to compensate for ineffective sealing or poor installation practice shall be unacceptable. Any required deflection of joints shall be made after the joint is assembled, but before final tightening of the bolts. S:\Engineering\Standards\Std. Const. Specs\For SUB Web\W-400 for Web.docx 119

20 BOLT DIAMETER (inches) TORQUE RANGE (foot-pound) 5/ / / W C Weldment Ring After assuring that all joining surfaces are free from foreign matter, the pipe shall be inserted into the socket and the gasket pressed firmly and evenly into the gasket recess while keeping the joint straight. The pipe shall be rotated as required for wedges to engage the weldment bead on adjoining pipe. All piping shall be jointed in strict accordance with the manufacturer s published procedures and recommendations. Copies of the manufacturer s published procedures and recommendations shall be kept on site by the Contractor for reference for workers and inspectors. W D Push-on Joint The plain end of the pipe for push-on joint connections shall be beveled before proceeding with the jointing operation. The plain end shall then be lubricated after dirt and foreign material has been removed from all jointing surfaces and the gasket has been installed in the bell end. The joint shall be kept straight while pushing the plain end into the bell of the pipe with any required deflection being made after the joint is assembled. W E Screwed Joints Screwed joint connections shall be made after all threaded surfaces have been thoroughly cleaned and prepared with approved Teflon sealing paste. W F Solvent Weld Solvent weld connections shall be made after both plain end and socket surfaces have been thoroughly cleaned and are dry. Apply primer to both surfaces according to manufacturer specifications. Apply solvent cement evenly to both surfaces, taking care to not over apply or cause excess solvent cement to run into the pipe or fittings and in accordance with the manufacturers specifications. The joint shall be kept straight while pushing the plain end into the fitting socket. Turn one-fourth turn and hold firmly in place to keep pipe from pushing out until the joint is set. Joint set is dependent on weather conditions. Any push-out of the joint is unacceptable. S:\Engineering\Standards\Std. Const. Specs\For SUB Web\W-400 for Web.docx 120

21 W G Fusion Weld All fusion welded joints shall be made under the direct supervision of a factory certified operator. When electrofusion joints are allowed by the design and project specifications, the following shall apply: Electrofusion shall be performed in strict accordance with the manufacturers recommendations. The electrofusion equipment used shall meet all of the fitting and pipe manufacturer conditions. All joining procedures shall be reviewed and approved by the Engineer prior to purchasing materials and jobsite delivery. W Assemblies All hydrants, valves, fittings, and other details and appurtenances shall be installed as shown in the applicable Standard Detail at the locations indicated on the Plans or as otherwise directed by the Engineer. W A Fire Hydrants Hydrants shall be installed so as to minimize the possibility of damage from vehicles or injury to pedestrians, and shall be in accordance with Standard Detail W1.14. A solid, precast, concrete-base block set on undisturbed earth or compacted crushed rock as approved by the Engineer shall be provided for each hydrant. Hydrant installations, shall be tied to the pipe with mechanical joint restraint device, or other restraint as approved by the Engineer. Minimum ductile iron pipe thickness where retainer glands are used shall be Class 52. Minimum PVC pipe shall be AWWA C900. Drainage shall be provided for the hydrant by placing crushed rock fill from the bottom of the trench at the base of the hydrant to at least 12 inches below finished grade. Similar material shall be placed in the inlet pipe trench for the full length from the hydrant to the main. No such drainage arrangement shall be connected to a sewer. All hydrants shall stand plumb. When placed in the open area between the curb and sidewalk or directly behind the curb where no sidewalk is proposed, the hydrant barrel shall be set so that no portion of the pumper or hose nozzle cap will be less than 18 inches from the gutter face of the curb, unless otherwise specified. When set behind the sidewalk, no portion of the hydrant or nozzle cap shall be less than 6 inches or more than 18 inches from the sidewalk unless otherwise specified. It shall be the Contractor's responsibility to assure that such horizontal clearances are satisfied regardless of approximate distances from the main, as may be noted on the Plans. The Contractor shall make any necessary horizontal adjustment to improperly set hydrants at no additional cost to the Owner. Hydrants shall be set so that the center of the safety breakaway flange is located a minimum of 2 inches and a maximum of 8 inches above finished sidewalk or ground level. Hydrants set too high shall be removed and replaced with an appropriate hydrant by the Contractor at his own expense. Extensions required for hydrants set too S:\Engineering\Standards\Std. Const. Specs\For SUB Web\W-400 for Web.docx 121

22 low shall be supplied and installed by the Contractor at his own expense. Following installation, the Contractor shall install an approved out-of-service sign, or suitable covering, until it is ready for use. W B Meter Boxes Approved water meter boxes shall be provided at every water service assembly at the locations shown on the plans in accordance with Standard Detail W1.00, or as directed by the Engineer. Each meter box shall be set on 4 inches of compacted 3/4 inch crushed aggregate at an elevation that places the top of the meter box cover flush with the proposed grade as specified. When set in a concrete collar, as directed by the Engineer, meter box installations shall be in accordance with Standard Detail W W C Valves and Valve Tiles Valves shall be set and joined to the pipe in the manner previously specified for cleaning, laying, and jointing pipe. Valves shall be provided with compacted crushed stone or a precast concrete pad set on the undisturbed earth for support so that the pipe will not be required to support the weight of the valve. The valve shall be operated from the fully open to fully closed position to assure that the valve does not bind during operation. The area around valves shall be back filled in the same manner as specified for the adjoining pipe. When set in sidewalk, concrete streets, or as directed by the Engineer valve tiles shall have a cast iron valve tile ring centered on the valve tile, flush with the finish grade, set before the placing of concrete around the box. All concrete shall be removed from the void space between the valve tile lid and the valve tile ring prior to the concrete setting. When set in a concrete collar, as directed by the Engineer, valve tile and valve tile ring installations shall be in accordance with Standard Detail W A valve tile shall be provided for every valve and shall be installed as shown in Standard Details W1.16. The valve box shall be centered along the axis of the operating nut of the valve and shall be set plumb so as not to transmit shock or stress to the valve or valve operator. The exposed end of the valve tiles shall remain accessible at all times. The Contractor shall be responsible for keeping the valve tile free of rocks and other debris for the duration of the project. Any misalignment or necessary readjustment of valve boxes shall be corrected by the Contractor at no additional cost to the Owner. A valve operator extension shall be provided for every valve where the operating nut is in excess of 5 feet from finished grade. The extension shall be of such length that its operating nut in place is within 1 to 2 feet of finished grade. The valve operator extension shall be constructed as shown on Standard Detail W1.18. The cost of furnishing and installing valve operator extensions shall be considered incidental to and included in the cost of other bid items, and no additional payment shall be made. S:\Engineering\Standards\Std. Const. Specs\For SUB Web\W-400 for Web.docx 122

23 W D Fittings Fittings shall be set and joined to the pipe in the manner previously specified for cleaning, laying, and jointing pipe. All plugs, caps, tees, reducers, and bends deflecting 11 1/4 degrees or more on mains 4 inches in diameter or larger shall be securely anchored as indicated on the Plans, and as shown in Standard Detail W1.26, by thrust blocking and/or joint restraint to prevent movement due to thrust. No concrete shall touch pipe or fittings. All cast and ductile fitting bolt assemblies shall be completely wrapped with 6 ML polyethylene sheeting and taped with approved PE tape to exclude cement containing backfill material and aid in corrosion control. W E Tapping Valves Tapping valves and sleeves shall be installed by the Contractor in accordance with the manufacturer's requirements and as previously specified for installing valves and fittings. Unless otherwise approved by the Engineer, the Owner shall make all taps during working hours and upon being given at least 72 hours notice. Prior to making a tap, the trench shall be excavated to approximately 4 feet by 8 feet to allow room for making the tap, and shall be adequately shored and dewatered as required. W F Air Valves Drainage shall be accomplished by placing crushed rock backfill material to a depth of at least 6 inches below the supply line pipe for the full trench width from the air valve to the main. For installations in streets, driveways, or other areas subject to vehicular traffic, a solid cast iron meter box cover shall be supplied. For installations in sidewalks or other areas not subject to vehicular traffic, a concrete cover with a cast iron reading lid shall be supplied. The meter box may be set against the back of the curb; however, no other portion of the meter box shall be within 6 inches of the edge of any sidewalk or driveway apron. S:\Engineering\Standards\Std. Const. Specs\For SUB Web\W-400 for Web.docx 123

24 W G Dead-end Mains and Flush Points All dead ends on new mains shall be closed with cast iron plugs or caps and a minimum 2-inch flush point assembly in conformance with Standard Details W1.09 to W1.12. The plugged or capped pipe length shall be the specified number of restrained joint pipe lengths with approved field-lock gaskets or restrained pipe joints as supplied by the pipe manufacturer and approved by the Engineer. The flush point pipe shall extend to within 6 inches of finished grade. Access to the flush point pipe shall be provided by a meter box kept free of rocks and debris at all times and installed such that the lid is flush with finished grade. For installations a solid cast iron meter box cover shall be supplied. The meter box may be set against the back of the curb; however, no other portion of the meter box shall be within 6 inches of the edge of any sidewalk or driveway apron. W H Services Water service assemblies shall be furnished and installed by the Contractor at the locations shown on the plans or as directed by the Engineer and shall be no smaller than 1 inch. The Contractor shall furnish all labor, equipment, materials, and tools necessary to install, complete, and ready for operation the assemblies as shown on the plans and herein specified. The Contractor shall perform the installation of the services in accordance within Standard Details W1.02, W1.02.1, W1.03, W1.03.1, W1.04, W1.05, W1.06, and W1.07 so that meters can be installed to the clearance and grades shown with feet. There shall be no splices or unions in new service lines. All long services 1 inch and smaller constructed across public or private rightsof-way or vehicular travel ways shall be installed inside a 3 inch Schedule 40 PVC duct or SDR 11 HDPE tubing at the locations shown on the plans and in accordance with the details. All service piping shall be of the size and material as shown on the plans and/or in the proposal unless otherwise specified. Identification of each service shall be accomplished by installing a meter box over the angle meter valve. Services installed in driveways or vehicular travel ways shall be supplied with a traffic rated meter box. Service taps on new subdivision construction shall be performed by the Contractor. Tapping shall be performed with manufacturer approved methods and industry standard equipment manufactured solely for the purpose of water main tapping. Prior to performing any taps, the Contractor shall submit to the Engineer for approval the equipment and procedure he intends to utilize for the water main taps. Service taps shall be located at the 10:00 or 2:00 position on the circumference of the pipe. Two or more service lines may be installed in the same trench when tapped with a minimum clear distance of 12 inches from any bell joint or between taps on a main line. No service taps shall be performed by the Contractor on any waterline that has been accepted by the owner and is in active service. S:\Engineering\Standards\Std. Const. Specs\For SUB Web\W-400 for Web.docx 124