A. 
The following specifications apply to all water mains and services installed on public or private properties that are connected directly or indirectly to the Town of Halfmoon Water System. All plans and specifications for such water mains shall be reviewed and approved in writing by the Town or authorized representative prior to construction.
B. 
Standard Detail Figures 1 through 7 of the Halfmoon Water Department supplement this chapter and shall be considered an integral part hereof. The Standard Detail Sheets are found at the end of this chapter.
C. 
In the event that the specified item no longer exists, the Town will specify a substitute product and manufacturer.
A. 
All pipe for water mains six inches in diameter and larger and for water services larger than two inches in diameter shall be ductile iron pipe. All ductile iron pipe four inches in diameter and larger shall be furnished in 18 feet or 20 feet nominal laying lengths.
B. 
All buried pressurized ductile iron pipe shall be centrifugally cast Class 52 pipe in accordance with the latest version of ANSI/AWWA C151/A21.51.
C. 
All buried pressurized ductile iron pipe fittings shall be ductile iron in accordance with the latest version of ANSI/AWWA C110/21.10 or ductile iron compact fittings in accordance with the latest version of ANSI/AWWA C153/A21.53.
D. 
All pipe shall have push-on joints in accordance with the latest version of ANSI/AWWA C111/A21.11. The pipe manufacturer shall furnish the required rubber joint gaskets and joint lubricant together with two silicon bronze wedges with each length of pipe. The two wedges shall be installed in each pipe joint several joint. Care shall be taken to ensure that these wedges do not drop out or become displaced due to movement of the pipe during laying and backfilling.
E. 
All ductile iron pipe for hydrant connections, minimum size six inches in diameter, shall conform to the same specifications as given previously for main line ductile iron pipe; except that hydrant connection pipe shall have mechanical joints in accordance with the latest version of ANSI/AWWA C111/A21.11.
F. 
The pipe manufacturer shall furnish the required joint accessories consisting of ductile iron glands, mechanical joint thrust restraint, high-strength, low-allow steel tee bolts and nuts (with fluorocarbon SC-1 coating), plain rubber gaskets, and required joint lubricant.
G. 
All buried ductile iron pipe and ductile iron fittings shall be cement mortar lined and point seal coated in accordance with the latest version of ANSI/AWWA C104/A21.4. The thickness of the lining shall be twice the standard and shall be not less than 1/8 inch thick for all pipe three inches through 16 inches in diameter.
H. 
All buried ductile iron pipe and fittings shall be furnished with a one mil thick standard petroleum asphaltic coating in accordance with the latest version of ANSI/AWWA C151/A21.51.
I. 
All buried ductile iron pipe and fittings shall be wrapped with polyethylene encasement in accordance with the latest version of ANSI/AWWA C105/A21.5.
A. 
Where preapproved by the Town, HDPE pipe may be used for water mains six inches in diameter and larger.
B. 
All buried HDPE pressurized pipe shall be manufactured in accordance with AWWA C906.
C. 
All buried HDPE pressurized pipe and fittings shall be made of polyethylene compounds, which conform to the physical requirements of PE 4710 and meet the ASTM D3350 cell classification of 445474C.
D. 
All buried HDPE pressurized pipe shall be DR-11 with a pressure rating of 200 psi and have a nominal DIPS (ductile iron pipe size) outside diameter. At the discretion of the Town, DR-9 (pressure rating of 250 psi) may be required.
E. 
HDPE pressure pipe for potable water shall meet the requirements of NSF 61.
F. 
Piping shall be provided with permanent identification by coextruding identification, such as striping, into the pipe's outer surface. Identification material shall be the same material as the pipe material, except for color (blue). Identification printed or painted on the pipe surface will not be acceptable.
G. 
Pipe and fitting joints shall be butt fused by heat fusion in accordance with ASTM D3261 and the manufacturer's recommendations.
H. 
Provide a sufficient length of AWG No. 11 stainless steel tracer wire with 30 mil thick blue HDPE insulation. Tracer wire length shall be such that a continuous piece can be used for each run of pipe. Splices in the tracer wire shall be made with split bolt connectors. Wire nuts or clip type connectors are not acceptable. A waterproof connection is required to prevent corrosion. Wire shall be terminated above grade at a hydrant or stubbed up inside a valve box to end at an accessible location. Where horizontal directional drilling is the method used for HDPE pipe installation, two separate and independent tracer wires shall be installed side by side.
I. 
Water services connected to HDPE mains shall be through the use of electrofusion transition saddles. Electrofusion saddle outlet material shall be Brass 360 Alloy with 304 stainless steel compression ring.
J. 
Saddles shall be manufactured by George Fisher Central Plastics (GFCP) and selected in accordance with the table below. Strap on saddles will not be allowed.
Main Size
(In)
Outlet Size
(In)
GFCP Part No.
8 DIPS
1 CORP
10004644
10 DIPS
1 CORP
10004647
12 DIPS
1 CORP
10004658
8 DIPS
1-1/2 CORP
10004726
10 DIPS
1-1/2 CORP
10004643
12 DIPS
1-1/2 CORP
10004659
8 DIPS
2 CORP
10004729
10 DIPS
2 CORP
10004645
12 DIPS
2 CORP
10004728
A. 
Provide stiffeners at each MJ adapter and coupling for HDPE pipe.
B. 
Stiffening inserts shall be specially designed for use on the inside of HDPE pipe in conjunction with AWWA C111 mechanical joints.
C. 
Provide stainless steel per ASTM 240, type 304 or 316.
D. 
Stiffener shall be manufactured within the pipe or MJ adapter by the factory.
E. 
Field-installed stiffeners may be allowed upon approval of the Town. Wedge style stiffeners are allowed.
F. 
Inserts must be designed for underground pressurized fluid service and are pressure rated to match the pipe DR pressure rating, derated as appropriate for service temperature. Maximum test pressure limited to pipe rated pressure.
A. 
Gate valves and tapping valves shall be Mueller A-2360 series and shall be provided through an authorized Mueller distributor. No "or equals" will be accepted.
B. 
Resilient wedge gate valves (four inches, to 12 inches) shall fully comply with the latest revision of AWWA C-515 and shall be UL Listed and FM approved. The valves shall be tested and certified to ANSI/NSF 61. The valve shall have a 350 psi working pressure. Each valve shall be factory seat tested to 525 psi and shell tested to 700 psi.
C. 
The valve shall have a nonrising stem (NRS). The stem shall be of bronze rolled stock and shall have a forged thrust collar. Cast stems are not acceptable. The valve shall have an arrow cast on the operating nut showing opening direction. The direction shall be open left (counter-clockwise).
D. 
The NRS valves shall be provided with a two-inch square operating nut. The bolt that attaches the operating nut to the stem shall be recessed into the nut so as not to interfere with valve wrench operation. The design of the NRS valve stem shall be such that if excessive input torque is applied, stem failure shall occur above the stuffing box at such appoint as to enable the operation of the valve with a pipe wrench.
E. 
The NRS valves shall have a stuffing box with bolts in line with flow and be o-ring sealed. Two o-rings shall be placed above and one o-ring below the thrust collar. Stuffing box shall have two integrally cast lifting lugs.
F. 
The valve disc and guide lugs must be fully 100% encapsulated in rubber material. Guide caps of acetal bearing material shall be placed over solid guide lugs to prevent abrasion and to reduce operating torque. All valves shall have 316 stainless steel bolts and nuts for stuffing box and bonnet. The valves shall have internal and external ferrous surfaces coated with a fusion bonded thermosetting powder epoxy coating of 10 mils nominal thickness. The coating shall conform to AWWA C-550.
G. 
All valve boxes shall be of cast-iron, slide type, at least 5 1/4 inches in diameter. Valve boxes shall be two piece type and shall be furnished to match the specific valve dimensions and trench depth as shown on the drawings.
H. 
All valve boxes shall be furnished with a cast-iron cover, drop style, with both the word "WATER" and an arrow indicating the direction of valve opening (open left) cast on the cover in raised characters. The arrow shall also be labeled with the word "OPEN."
I. 
Furnish one steel socket key for each five valves of the same size or less. The length shall be compatible with valve with the greatest depth of bury.
J. 
Gate valve and valve box installation shall conform to all requirements included herein and as shown on Figure 1. All hydrant leads shall incorporate a gate valve which in general, shall be located as far from the hydrant and as close to the main as possible. Gate valves at main line junctions shall be located four feet away measured center of the valve to the center of the junction or fitting as shown on Figure 2[1] A gate valve shall be located on each side of a tee intersection three valves total). Gate valves on ductile iron water services shall generally be located on the street line or property line or where required by the Town of Halfmoon Water Department. All gate valve locations shall be reviewed and approved by the Town prior to valve installation and preferably during the design of the system. Tops of the valve boxes shall be set flush with grade in paved areas and set one inch above grade in grassed areas.
[1]
Editor's Note: See 160 Attachment 1, Standard Water Details.
A. 
Hydrants shall be Mueller Super Centurion 250 - Model A-423 and shall be provided by an authorized Mueller distributor. No "or equals" will be accepted.
B. 
Fire hydrants shall meet or exceed all applicable requirements and tests of ANSI and the latest revision of AWWA Standard C-502. Fire hydrants shall be rated for a working pressure of 350 psi. Hydrants shall be of a true compression type, opening against pressure and closing with the pressure. The main valve seat shall be 5 1/4 inches in diameter and be reversible in design.
C. 
Hydrants shall be a three-way design, having one integral five-inch Storz pumper connection and two-and-a-half inch NST hose nozzles. The hose nozzles and Storz connections shall be integral parts of the hydrant and must be furnished by the manufacturer or authorized distributor designated by the manufacturer. Storz adapters will not be accepted. The operating nut shall be a one-piece design: one-and-one-half-inch pentagon in size and shape. The direction of opening shall be left (counter-clockwise). The bonnet assembly shall be provided with an oil reservoir and lubrication system that automatically circulates lubricant to all stem threads and bearing surfaces each time the hydrant is operated.
D. 
Hydrants shall be of the traffic-model design, provided with a stainless steel, torque diverting coupling and safety flange on the lower barrel. Hydrants shall be equipped with two drain valves which drain the barrel when the hydrant is closed. The bronze seat ring shall thread into a bronze drain ring. Bolts and nuts below grade shall be 304 SS.
E. 
Hydrants shall have a six-inch MJ shoe and be five-foot-six-inch bury, unless otherwise noted. Hydrants shall be factory painted Mueller Yellow. Paint damaged during the transport of hydrants to the project site, or resulting from hydrant installation, shall be touched up in the field following installation.
F. 
All hydrant components shall be designed, manufactured and tested in conformance with current editions of ANSI/AWWA C 509-04 standards.
G. 
Hydrants are to be installed true and plumb. All joints on hydrant lateral are to be provided with thrust restraint. Where hydrant is located in areas where groundwater is located within seven feet of finished grade, or hydrant is within eight feet of a sanitary sewer, or where ordered by engineer, the drain shall be plugged in a manner approved by the engineer.
H. 
All hydrants shall be equipped with a spring mounted hydrant marker consisting of a three-eighth-inch diameter fiberglass rod, sixty-foot length, with red decals, and stainless steel mounting bracket. Mounting bracket shall be top mount style.
I. 
Hydrant installation shall conform to the requirements on Figure 3 of the Standard Detail Sheets[1]. The type of hydrant installation shall be installed truly vertical at the locations set by the Town Engineer and/or Town of Halfmoon Water Department and shall be carefully plumbed before the connection is made.
[1]
Editor's Note: See 160 Attachment 1, Standard Water Details.
J. 
Hydrants and hydrant valves shall be set on a solid precut concrete block at least 12 inches square and six inches thick; the concrete slab to be supported by firm undisturbed material or well-consolidated fill.
K. 
Crushed stone to a minimum thickness of 12 inches shall be placed around the drain up to a level at least five inches above the drain to provide for hydrant drainage in pervious soil, such as sand or gravel. In impervious soil, such as clay, a drainage pit two feet in diameter and three feet deep shall be excavated below each hydrant and filled completely with crushed stone under and around the bottom of the hydrant up to a level at least six inches above the drain. In both cases, the top of crushed stone shall be completely covered with polyethylene or building paper to prevent the backfill from sifting down into the crushed stone drain.
L. 
When required by the Town Engineer and/or Town of Halfmoon Water Department because of evidence of high groundwater, the hydrant drain opening shall be plugged to prevent the entrance of groundwater. In this case, no crushed stone need be placed under the hydrant.
M. 
All hydrant-lead-valve assemblies shall be blocked against movement with solid precut concrete blocks at least 12 inches square and six inches thick both behind the hydrant and behind the tee as shown on Figure 3[2] Provide the appropriate number of concrete blocks to bear against undisturbed material.
[2]
Editor's Note: See 160 Attachment 1, Standard Water Details.
A. 
Tapping sleeve shall be Romac Industries Model SST-MJ.
B. 
Tapping sleeves for four-inch-through-twenty-four-inch pipe shall be constructed of heavy gauge 304L stainless steel meeting or exceeding ASTM A 240 type 304 UNS designated S30400 and S30403 and certified to ANSI/NSF 61. Tapping sleeves for four-inch-through-eight-inch pipe shall be rated for minimum 250 psi. Tapping sleeves for ten-inch-through-twenty-four-inch pipe shall be rated for minimum 200 psi.
C. 
Outlet shall be MJ style in accordance with AWWA C111 and constructed of 304 stainless steel.
D. 
All tapping sleeve hardware shall be constructed of 304 stainless steel. Threads shall be UNC.
E. 
Tapping sleeve gasket shall be NSF 61 compliant and constructed of virgin SBR rubber compounded for water service in accordance with ASTM D 2000. Gasket shall include specially designed grid pattern with tapered ends to assure seal around the full circumference of the pipe. A reinforced ring shall be provided at gasket outlet to provide hydrodynamic seal.
F. 
MJ gaskets shall be NSF 61 compliant and constructed of virgin SBR rubber compounded for water service in accordance with ASTM D 2000 MAA610.
G. 
Tapping sleeves shall be furnished with a three-fourth-inch test outlet to allow for hydrostatic testing of the seal prior to tapping. The plug shall be three-fourth-inch stainless steel with square head.
A. 
All waterline blowoffs shall consist of a mechanical joint anchoring tee, a gate valve with box, corporation stop one-inch curb stop with boxmiscellaneous fittings and piping. The concrete thrust block shall be placed between the undisturbed trench wall and trench bottom and the waterline as shown on the detail. A two-foot-by-two-foot-by-two-foot volume of crushed stone shall be placed under the curb stop. A four-foot-by-four-foot-by-one-foot volume of crushed stone shall be center under the outlet of the blowoff at ground level. All other items for the waterline blowoff are to be as specified in other sections of this chapter.
A. 
Refer to Figure 5 of the Standard Detail Sheets[1] for installation details. Tapping into water mains when the air temperature is below 32° F. will generally not be allowed. The owner must be granted special permission to tap water mains when the air temperature is below 32° F. by the Town of Halfmoon Water Department. All service connections shall be pressure tested by the contractor.
[1]
Editor's Note: See 160 Attachment 1, Standard Water Details.
B. 
The complete one-inch-through-two-inch water service shall consist of the tap, corporation stop, branch connection with extra taps and corporation stops if required, copper service pipe and fittings, and curb stop and box. Taps will generally be made by the owner or their contractor after the main has been tested, accepted and placed in service. Copper service pipe shall be run in trenches five-foot depth minimum as measured from finished grade. The curb stop and box shall generally be located on the property or right-of-way line with the top of the curb box set one-inch above grade in grassed areas and set flush with grade in paved areas.
C. 
The contractor shall provide insurance to the Town of Halfmoon, in an amount specified by the Town, prior to tapping an existing waterline. The Town shall be listed as an additional insured on the insurance policy.
D. 
A complete service for services larger than two inches shall generally consist of a main line tee or tapping sleeve and valve, ductile iron or HDPE service pipe and fittings, and standard gate valve and valve box. Such ductile iron and HDPE service pipe and fittings shall meet the same specifications that was given previously for the main line pipe and fittings, and shall be installed in a trench to provide at least five feet of cover over the barrel of the pipe, all as measured from finished grade.
E. 
The standard gate valve and valve box shall generally be located on the property or right-of-way line or where required by the Town of Halfmoon Water Department. The gate valve and valve box shall meet the same specifications as outlined in § 160-27 for main line valves and valve boxes.
F. 
Drawings showing the exact configuration of water services larger than two inches in diameter shall be reviewed and approved by the Town prior to their construction as outlined in Article II of this chapter.
All water services one-inch through two-inches in diameter shall be made with copper service pipe. All copper service pipe shall be softer temper Type K seamless copper tubing conforming to ASTM Specification B88 for underground service. Copper service pipe shall have the following dimensions and weights:
Nominal Pipe Size
(In)
Outside Diameter
(In)
Weight per feet
(Lbs)
1
1.125
0.839
1 1/2
1.625
1.360
2
2.125
2.060
A. 
HDPE service pipe is allowed after the curb stop in areas that the Town of Halfmoon will not own or maintain.
B. 
HDPE service pipe shall be manufactured in accordance with AWWA C901.
C. 
HDPE service pipe for potable water shall meet the requirements of NSF 61.
D. 
HDPE service pipe shall be made of polyethylene compounds, which conform to the physical requirements of PE 4710 and meet the ASTM D3350 cell classification of 445574CC.
E. 
HDPE service tubing shall be copper tube size (CTS) with a pressure rating of 250 psi.
F. 
Stiffening inserts compatible with HDPE (CTS) service tubing shall be used at all compression connection (i.e., curb stops).
A. 
Corporation valves for one-inch-through-two-inch copper service pipe shall be Mueller 300 Ball Valve Type, B-25008.
B. 
Corporation valves shall be manufactured in compliance with ANSI/AWWA C800 (latest revision).
C. 
Brass components in contact with potable water shall conform to ASTM B584, UNS C89833 (latest revision) and shall comply with the latest requirements of the Federal Safe Drinking Water Act.
D. 
Corporation valves shall be certified to NSF/ANSI 61 and NSF/ANSI 372.
E. 
Brass components not in contact with potable water conform to ASTM B62 and ASTM B584, UNS C83600-85-5-5-5 (latest revision).
F. 
Corporation valves shall be rated for a working pressure of 300 psi.
G. 
Size corporation valves according to service size.
H. 
Corporation valves shall be installed tilted up at about 15° from horizontal so that a partial loop can be formed in the copper service pipe to allow for possible differential movement of the service pipe and main. A minimum of five feet of cover below finished grade shall be maintained over the top of the partial loop in the copper service pipe.
I. 
Multiple corporation valves for use with branch connections shall be installed 18 inches on center measured along the main and shall be staggered off-line around the circumference of the main.
J. 
Corporation valve taps larger than the maximum tap size allowable in the main shall not be made. AWWA and DIPRA (Ductile Iron Pipe Research Association) recommendations shall be followed. Consideration shall be given to minimum pipe wall thickness required for each tap size to insure a serviceable threaded connection. Service conditions should indicate the extent of full-threaded engagement necessary. As a guide, tap size should be limited so that at least three full threads of the corporation stop are engaged in the pipe wall for ductile iron pipe.
Branch connections shall be 'Y' Type, minimum two branch for one-inch inlet and two inch outlet. Branch connections shall be two branch Mueller H-15343N, three branch Mueller H-15071 110 Compression straight couplings shall be used on the outlet end of the branch connections to provide the required compression connection to the copper or HDPE (CTS) service pipe.
A. 
Curb valves for one-inch-through-two-inch copper or HDPE (CTS) service pipe shall be Mueller 300 Ball Valve Type, B-25209.
B. 
Curb valves shall be manufactured in compliance with ANSI/AWWA C800 (latest revision).
C. 
Brass components in contact with potable water shall conform to ASTM B584, UNS C89833 (latest revision) and shall comply with the latest requirements of the Federal Safe Drinking Water Act.
D. 
Curb valves shall be certified to NSF/ANSI 61 and NSF/ANSI 372.
E. 
Brass components not in contact with potable water conform to ASTM B62 and ASTM B584, UNS C83600-85-5-5-5 (latest revision).
F. 
Curb valves shall be rated for a working pressure of 300 psi.
G. 
Size curb valves according to service size.
H. 
When curb boxes for one-inch-through-two-inch services are installed in concrete or paved services, cast iron curb box sleeves shall be installed to allow freedom of movement of the ground key lid. Curb box sleeves shall be Mueller H-10342.
A. 
Water meter pits for individual water services shall be plastic pit setters by Ford Meter Box Company or equal. Pit depth shall be five feet. Pit shall come installed with angle ball valve on upstream of meter set and angle cartridge dual check valve on downstream side. Pit shall have three-fourths-inch PVC bar secured to pit wall for extra support. Wabash double lid iron cover suitable for electronic meter reading shall be provided.
B. 
Water meter vaults for commercial water services shall be in accordance with Figure 7[1]
(1) 
Vaults shall be manufactured of precast concrete and have an inside dimension of six feet by six feet.
(2) 
A sump shall be supplied with the vault for proper draining.
(3) 
The vault shall be supplied with a single leaf thirty-six inch-by-thirty-six-inch aluminum access hatch.
(4) 
The vault shall be supplied with an aluminum access ladder with a ladder up safety post.
(5) 
The exterior of the vault shall be coated with a bituminous waterproofing coating.
[1]
Editor's Note: See 160 Attachment 1, Standard Water Details.
A. 
Water meters for all water services must be obtained from and installed by the Town of Halfmoon Water Department. All water services must be metered. It shall be a misdemeanor offense for which a term of imprisonment exceeding 15 days but no more than one year may be imposed and or a fine not to exceed $1,000 for individuals or entities to utilize unmetered water.
B. 
All water meters must be approved by the Town.
A. 
Pressure reducing valve shall be installed at properties in which the anticipated system pressure from the Town system is greater than 80 psi, PRV shall be located downstream of the meter.
B. 
PRV shall be installed by a licensed plumber and contracted by the owner.
C. 
Size of PRV shall match the size of the incoming water service.
A. 
The prepackaged PRV station equipment shall be manufactured by Engineered Fluid, Inc.
B. 
The capsule designs shall be reviewed and stamped by a register professional engineer licensed in the State of New York.
C. 
The PRV station shall include but not be limited to the following:
(1) 
Pressure reducing valves (mainline, bypass).
(2) 
Butterfly, gate, ball valves.
(3) 
Steel process piping in accordance with AWWA C-200 and associated supports.
(4) 
Sample taps.
(5) 
Pressure gauges.
(6) 
Electrical and mechanical equipment, including lights, outlets, dehumidifier, sump pump, heater, ventilation fan, circuit breakers, panels.
A. 
In addition to the various miscellaneous installation requirements given in preceding sections of the specification, all water distribution system installation shall be done in accordance with the latest revisions of ANSI/AWWA C600. Also all work shall be done in accordance with the requirements of the Town of Halfmoon Water Department representatives and must be inspected and approved in writing by the Town or authorized representative.
B. 
Trenches shall be open cut from the surface deep enough to provide a minimum of five feet of cover over the barrel of the pipe from finished grade. Trenches should be wide enough to provide at least six inches of clearance on each side of the bell of the pipe. Refer to Figure 6 of the Standard Detail Sheets[1] for standard trench details. Warning underground utility tape shall be installed 12 inches below finished grade for all pipe.
[1]
Editor's Note: See 160 Attachment 1, Standard Water Details.
C. 
All pipe and fittings shall be laid on good foundations trimmed to shape, and where required, secured against settlement, all in a manner to provide full support for the entire length of pipe. At the joints, enough width and depth, including bell holes, shall be made to permit proper jointing. Blocking support of pipe shall not be permitted unless the pipe is to be laid with a concrete cradle or encasement or inside a tunnel or casting pipe. When pipe is laid in tunnels or casings, the pipe shall be blocked in such a manner so as to take the weight off the bells. Sufficient selected bedding and backfill shall be placed or other precautions taken to prevent flotation, movement, or damage to the pipe, fittings and coatings.
D. 
Excavation to grade and backfilling shall be done in accordance with the latest revision of ANSI/AWWA C600. When backfilling use satisfactory excavated material, or sand, gravel or other special trench backfill as outlined in this section. The backfill shall be brought by hand or approved mechanical means to a depth of one foot over the pipe to provide a cushion and prevent movement and damage to the pipe during subsequent backfilling with equipment. Excavation of rock shall be as shown on Figure 6 of the Standard Detail Sheets.[2]
[2]
Editor's Note: See 160 Attachment 1, Standard Water Details.
E. 
All trench required sheeting and shoring shall be done in accordance with the latest revisions of Title 29 Code of Federal Regulations, Part 1926, Safety and Health Regulations for Construction (OSHA).
F. 
Materials shall conform to the following specifications:
(1) 
Pipe zone bedding (normal soil conditions): Sound, durable sand, gravel, stone or blends of these materials, free from organic, frozen or other deleterious materials, conforming to the requirements of NYSDOT Section 304 and meeting the gradation requirements of NYSDOT Subbase Type 4.
(2) 
Pipe zone bedding (saturated soil conditions): Select mixture of graded crushed stone, free from organic, frozen, or other deleterious materials, conforming to the requirements of NYSDOT Section 703-02 and meeting the gradation requirements of NYSDOT Size 2.
(3) 
Pipe zone backfill: Sound, durable sand, gravel, stone or blends of these materials, free from organic, frozen or other deleterious materials, conforming to the requirements of NYSDOT Section 304 and meeting the gradation requirements of NYSDOT Subbase Type 4.
(4) 
Suitable material: Sound, durable sand, gravel, stone or blends of these materials, conforming to the requirements of NYSDOT 203- 2.02C and meeting the following gradation requirements:
Sieve
Percent Passing
4
100
No. 40
0-70
No. 200
0-15
G. 
Proper and suitable tools and equipment for convenient and proper handling and laying of pipe and fittings shall be used. Care shall be taken to prevent entrance of dirt or foreign matter into the pipe and to prevent damage of pipe lining and coating. Open ends of pipes shall be kept plugged or bullheaded during construction.
H. 
All material shall be carefully examined for defect and no piece shall be laid which is known to be defective. If any piece is found to be defective, it shall be removed and replaced with a sound piece in a satisfactory manner.
I. 
Whenever pipes require cutting to fit into other lines, the work shall be done with approved cutting tools specifically designed to cut pipe, so as to leave a smooth end at right angles to the axis of the pipe. The cut end shall be ground or filed to a slight taper so as not to damage rubber gaskets. The spigot ends of pipe shall be installed at the correct depth in the bells with a rubber gasket and two silicon bronze wedges per joint. Plain rubber gaskets shall be used on all mechanical joints. When making plain end connections with a sleeve, ends shall butt together or a filler piece or pipe stop be installed between the ends.
J. 
In order to be accepted by the Town of Halfmoon Water Department, all valve boxes and curb boxes shall be clean, shall be set squarely down on the valve or curb stop, shall be centered and plumb over the wrench nut of the valve or operating rod of the curb stop, and shall not be over extended. All valves and curb stops shall be suitably marked and adequately protected during construction.
K. 
Water mains shall be installed at least 10 feet horizontally from any existing or proposed sanitary sewer. The distance shall be measured from edge to edge. In cases where it is not practical to maintain a ten-foot separation, the water main may be installed closer to the sanitary sewer provided that the water main is laid in a separate trench and on an undisturbed earth shelf located on one side of the sanitary sewer at such an elevation the bottom of the water main is at least 18 inches above the top of the sanitary sewer. Water mains crossing sanitary sewers shall be installed to provide a minimum vertical distance of 18 inches between the outside of the water main and the outside of the sanitary sewer. This shall apply whether the water main crosses above or below the sanitary sewer. For all crossings, one full length of water main pipe shall be located so that each joint shall be as far away as possible from the sanitary sewer. Special structural support of the water main and sanitary sewer may be required.
L. 
In order to control dust conditions during the water main construction, the contractor shall furnish and apply water only. The use of calcium chloride for dust control shall not be permitted. When water is used on streets or roads, it shall be applied uniformly with a pressure distributor spray bar or by other Town approved equipment. When water is used on areas that shall be sodded or seeded later, it shall be free from acids, oils, salts, or any other substances injurious to plant growth.
M. 
Where static pressures in the water system exceed 95 psi, individual pressure reducing valves shall be provided as part of the meter setting on individual service lines.
A. 
All plugs, caps, tees, bends and other fittings shall be provide with concrete thrust blocking to resist test pressures or shall be prevented from moving by using suitable metal rods or clamps. Refer to Figure 4 of the Standard Detail Sheets[1] for typical concrete thrust block details. All concrete to be 3,000 psi and shall be placed around the fittings to completely fill the space between the fittings and the undisturbed walls of the trench. Concrete shall not overlap any joint and shall be placed so as not to interfere with removing or installing any of the jointing hardware.
[1]
Editor's Note: See 160 Attachment 1, Standard Water Details.
B. 
Other means of thrust restraint utilizing restrained joint fittings (Megalug, Field-Lock gaskets, or equal) may be required by the Town where deemed necessary.
Connections to existing systems shall be reviewed and considered on an individual basis by the Town. In general, connections shall be made with minimal or no disruption to the water service in the existing system.
At times when pipe laying is not actually in progress, the open ends of the pipes shall be closed temporarily with pipe plugs or by other means. This shall occur at a minimum of the end of each workday. If water is in the trench when work is resumed, the trench shall be dewatered and the plugs shall not be removed until all danger of water entering the pipe is past.
At the conclusions of the work, the contractor shall thoroughly clean all new pipes by flushing with water or other means to remove all dirt, stones, pieces of wood, etc., which may have entered during the construction period. If, after this cleaning, any obstructions remain, they shall be removed to the satisfaction of the Town Engineer and the Town of Halfmoon Water Department. Pipes shall be flushed at a rate of 2.5 feet per second for a duration suitable to the Engineer and the Town of Halfmoon Water Department. The rates of flow required to produce 2.5 feet per second flushing velocity in different sizes of pipe are as shown in the following table:
Pipe Size
(inches)
Flow Required to Produce 2.5 fps Velocity (Gallons Per Minute)
4
100
6
220
8
390
10
615
12
880
16
1575
Hydrostatic acceptance tests, consisting of a pressure test and a leakage test, shall be performed on all sections of all water systems installed after the trench has been backfilled. Hydrostatic presumptive tests may be performed when the system is partially complete.
A. 
All pipes and fittings connected to and forming a portion of a potable water supply shall be disinfected and flushed in a manner acceptable to the Town Engineer and the Town of Halfmoon Water Department. Disinfection shall be accomplished after the pipe has passed the pressure and leakage tests.
B. 
Disinfection shall be performed in accordance with the latest version of AWWA C651. Disinfection shall be accomplished by applying a chlorine solution that will give a 50 ppm chlorine residual throughout the main being disinfected. The chlorine solution shall remain in the water mains for a minimum period of 24 hours. At the termination of this period, the chlorine residual shall be a minimum of 25 ppm. If the residual is less than 25 ppm, the entire procedure shall be repeated. The chlorine solution shall be thoroughly flushed out prior to placing the new section of the main service. The chlorine solution shall be disposed of in a manner that will in no detrimental way affect fish, plant, or animal life.
C. 
After the water mains have been flushed with potable water to the satisfaction of the Engineer and the Town of Halfmoon Water Department, samples shall be collected by the contractor from every 1,200 linear feet of new water main, at each branch, and at each end of the section of water main being activated. Samples taken by the contractor to a NYS ELAP- approved testing laboratory for analysis of total coliform. Two consecutive sets of samples shall be taken 24 hours apart in accordance with AWWA C651.
D. 
The number of samples and their collection points shall be reviewed with and be acceptable to the Town. The testing laboratory that will do the bacteriological analysis shall be the responsibility of the owner. The water samples shall test bacteriologically safe before the water mains are placed in service.
Unless specifically approved by the Town, no water distribution system installation and construction shall take place when the air temperature is below 32° F. The owner must be granted special permission in writing when the air temperature is below 32° F. by the Town of Halfmoon Water Department.
A. 
At the conclusions of the water system installation, the contractor shall prepare detailed record maps of the completed water distribution system as follows:
(1) 
Submit record digital data files and three sets of record digital data file plots (22 inches vs. 34 inches) to the Town Water Department.
(2) 
Submit on compact disk or flash drive all AutoCAD files (.dwg) used in preparing record drawings to the Town Water Department.
(3) 
Submit GPS coordinates of all critical features in their final installed location, including but not limited to, water main piping, fittings, bends, main line valves, hydrant valves, corporation valves, curb valves, and hydrants. GPS coordinates shall be within one-meter accuracy. Use of a smartphone or low-grade handheld GPS is not acceptable for locating.
(4) 
Use GPS points to update the contents of the record plots and AutoCAD files (.dwg) prior to submittal so that the drawings reflect the actual final installed location of the infrastructure.
(5) 
GPS points shall use the following naming convention:
(a) 
UWM - Utility Water Main.
(b) 
UWF - Utility Water Fitting.
(c) 
UWH - Utility Water Hydrant.
(d) 
UWGV - Utility Water Gate Valve.
(e) 
UWHV - Utility Water Hydrant Valve.
(f) 
UWCV - Utility Water Corporation Valve.
(g) 
UWCBV - Utility Water Curb Valve.
(h) 
UWS - Utility Water Service.
B. 
At the conclusion of the water system installation, the contractor is required to furnish to the Town, an engineer's certification (completed by a New York State licensed engineer) stating that the water system is complete and was installed in accordance with the previously submitted and approved plans and specifications. The Town will submit a copy of the engineer's certification to the New York State Public Service Commission.
A. 
All installation and construction of all water mains and services installed in public or private property that are connected directly or indirectly to the Town of Halfmoon Consolidated Water District system shall be subject to the control of the Town of Halfmoon Water Department.
B. 
Operation of all valves and hydrants under pressure shall be done only by representatives of the Town of Halfmoon Water Department or by such responsible person approved in writing by the Town of Halfmoon Water Department.
C. 
The Town of Halfmoon Water Department shall be notified in writing at least 24 hours prior to the start of making connections to the existing systems. Also, the Town of Halfmoon Water Department shall be notified in writing at least 24 hours prior to the start of pressure testing, leakage testing and disinfection.
D. 
The Town of Halfmoon Water Department will not authorize any meter installations, in any subdivision, prior to receiving complete record drawings and New York State licensed engineer's certifications and having reviewed and approved the same.