Township of Montville, NJ Article V Construction Standards for Water Utility Distribution System

§ 394-40 Applicability; jurisdiction and supervision; conformity required.

A. The standards outlined herein are applicable to developers, builders, contractors and any other persons receiving approval to expand, construct or relocate the Township Water and Sewer Department's water distribution facilities. Standards for the development of additional water supplies and any necessary construction of water storage facilities will be issued at the time of application therefor.

B. Any work relating to the extension, construction, relocation of the Township Water Utility shall be under the jurisdiction and supervision of the Department.

C. In addition to the standards outlined herein, all plans and construction work shall be in conformance with the New Jersey Administrative Code for Public Community Water Systems: Distribution and Storage, N.J.A.C. 7:10-11.7 to 7:10-12.36.

§ 394-41 Definitions.

As used in this article, the following terms shall have the meanings indicated:

BOARD OF HEALTH

The Township of Montville Board of Health and the Township Health Department.

COMMITTEE

The Township Committee of the Township of Montville.

[1]

DEPARTMENT

The Department of Water and Sewer of Montville Township.

DEVELOPER

Any contractor, person, firm, association or corporation designing or required to extend, construct or relocate an addition to the water distribution system or connect thereto.

DIRECTOR

The Director of Water and Sewer Department appointed by the Township Committee.

ENGINEER

The licensed engineer appointed by the Township Committee, who may also be the licensed operator for the water utility's distribution system.

INSPECTOR

The duly designated person assigned by the Director to inspect construction and testing.

OWNER

Any person, persons, firm, corporation or association actually owning any property or premises or his or their duly authorized agent which is or can be supplied with water service.

PLANNING BOARD

The Township of Montville Planning Board.

PLANS

The documents produced by the developer for extension, construction or relocation of water distribution facilities. Plans shall be signed and sealed by an engineer licensed in the State of New Jersey and completed and approved prior to construction.

SERVICE AREA

The area serviced by new, extended or relocated water supply facilities.

STANDARD DETAILS

The details provided by the Department referred to as standard in this article.

STREET

Any and all streets, avenues, highways, roads and rights-of-way owned by the Township or other governmental agencies.

TOWNSHIP

The Township of Montville, whose principal offices are located at 195 Changebridge Road, Montville, New Jersey.

[1] Editor's Note: Amended at time of adoption of Code (see Ch. 1, General Provisions, Art. I).

§ 394-42 Preconstruction requirements.

A. Design data. The following are design data requirements:

(1) A determination of water demands in the areas to be serviced.

(2) Fire protection requirements.

(3) A determination of the elevation differences throughout the service area and the static head conditions. Assess the various options available for pumping (or gravity flow) and fire protection and any storage requirements in relation to head conditions.

(4) A determination of pipe size for new service requirements.

B. Submissions. In addition to the requirements of the Planning and Zoning Boards, three sets of plans shall be submitted to the Department. Plans shall include a scale plan drawing at a minimum of one inch equals 50 feet showing locations, profiles, details and material lists, including diameters, depths, makes and model numbers.

C. Site conditions. Prior to submission, the various site conditions shall be considered in the design plan: soil type, including bearing strength and corrosivity, location of all underground utilities, pipe bedding requirements and traffic control during construction.

D. Approvals. When the extension, construction or relocation of the water utility distribution system is proposed in connection with a major subdivision application, the Planning Board or Zoning Board of Adjustment may not grant final subdivision approval until the plans are approved by the Engineer and by the Department. When the extension, construction, or relocation of the water utility distribution system is proposed in connection with a site plan application, the Construction Official may not grant a certificate of occupancy until the system is accepted by the Department.

E. As-built drawings. After acceptance by the Department, and within 90 days thereafter, the developer shall submit an as-built plan, profile and details of the installed water system including all information shown on the approved plans. Also, ties shall be made and shown on, the plans for every valve and curb service box. One Mylar and three prints shall be submitted to the Engineer for approval. As-built drawings shall be certified by a professional engineer licensed in the State of New Jersey.

§ 394-43 Standards for distribution system.

A. Pipe material.

(1) All water supply lines installed in Township rights-of-way and easements having a diameter of four inches or larger shall be ductile iron pipe (D.I.P.) Class 52. Ductile iron pipe shall be centrifugally cast in metal or sand-lined molds with mechanical joints or push-on joints and shall be certified to be in full conformance with AWWA Specification C 151-76 or latest revision thereof.

(2) Each piece of pipe and fitting shall be plainly marked at the factory with class number and letter and weight. All pipe and fittings shall be tar-coated in accordance with AWWA standards.

(3) All ductile iron pipe shall be cement-lined and factory seal-coated in accordance with AWWA C 104-74 or latest revision thereof.

B. Pipe installation.

(1) All pipe shall be laid in conformance with AWWA C600, Installation of Gray and Ductile Cast Iron Mains and Appurtenances.

(2) All water pipes and fixtures shall be placed at least four feet underground as measured from the top of the pipe or fitting.

(3) Whenever practicable, water supply lines shall be laid in a loop system and dead-ends minimized.

(4) Minimum pipe size for water supply lines in Township right-of-way shall be eight inches, or as directed by the Engineer.

C. Thrust restraint.

(1) Maximum joint deflections shall not exceed those listed in AWWA Standard C600-77, Tables 5 and 7 for push-on joints and mechanical joints respectively.

(2) Trench bottoms shall be uniform and continuous as possible. Holes shall be provided for the pipe couplings so that the couplings are not supporting the pipe in the trench.

(3) Concrete thrust blocks shall be placed for reaction backing at all fittings used for changes of direction, at reducers, at dead-ends, at valves and at each pipe joint on curves. Rodded anchorage shall be installed at all upward thrusts and where required by the Department.

(4) All thrusts restraints shall be designed to withstand pipeline test pressure of 150 pounds per square inch. Thrust block area shall be dependent upon pipe diameter, bearing capacity of the soil and type of fitting or bend.

(5) Thrust blocks shall be installed in accordance with the standard details and shall be shown on the plans. No concrete shall be placed over fitting bells or couplings.

(6) The following table may be used to estimate the safe bearing capacity of soils. A schedule of minimum thrust block dimensions is included with the standard details.

	Safe Bearing Load of Soils
	Soil	Pounds Per Square Foot
	Muck, peat and similar	0
	Soft clay	1,000
	Sand	2,000
	Sand and gravel	3,000
	Sand and gravel cemented with clay	4,000
	Hard shale	10,000

D. Fittings.

(1) Fittings include all bends, tees, tie rods, clamps, reducers, plugs, sleeves and specials required for the water main construction.

(2) All fittings shall be mechanical joints and shall meet AWWA standards for a maximum working pressure of 250 pounds per square inch. Fittings shall be new ductile iron or gray cast-iron material and shall be cement-lined and tar-coated in accordance with AWWA C 104-74. Fitting joints shall conform to AWWA C 110-77 or latest revision thereof. Compact fitting shall be considered for approval by the Engineer and shall be in conformance with all applicable terms and provisions of AWWA C 152 and C111.

(3) All horizontal and vertical bends greater than 5° shall be properly harnessed with concrete thrust blocks as shown on the detailed drawings and/or steel tie rods as approved by the Department prior to installation. Tie rods, when required, shall be 3/4 inch galvanized steel rod with malleable iron couplings and coated with a heavy coat of bitumastic paint immediately after assembly. A tie rod schedule is included with the standard detail.

(4) Mechanical joint pipe sleeves shall be solid type, in conformance with AWWA C 110-77 or latest revision.

(5) All fittings shall be equipped with retaining glands in conformance with AWWA standards.

E. Gate valves and boxes.

(1) Location.

(a) For sectionalizing areas of water main service, a valve shall be placed on each branch at every intersection of pipelines, with a maximum distance between valves of 1,000 feet.

(b) All water main taps shall include a gate valve.

(c) A gate valve shall be placed at the end of all dead-end lines upstream from the plug end.

(d) Additional gate valves shall be installed at every fire hydrant and as directed by the Department.

(2) Type.

(a) All gates valves shall comply with AWWA Standard C500-71 or latest revision thereof in every respect.

(b) All gate valves shall have mechanical joint ends. Bell dimensions shall conform to AWWA C111.

(c) All gate valves shall be as manufactured by the Mueller Company No. A2360-20, AWWA type or approval equal.

(3) Gate valves shall conform to AWWA Standard No. C500-71 or latest revision thereof. Supplementary requirements to this standard are listed below. Gate valves, four-inch through ten-inch: AWWA Standard No. C500-71.

(a) This specification covers water valves in sizes four-inch, six-inch, eight-inch, and ten-inch. Valves are to be as manufactured by the Mueller Company No. A2360- 20, AWWA type, nonrising stem, having mechanical joints. Valves shall be open by turning counterclockwise.

(b) All gate valves shall have O-ring seals. One O-ring shall be located below the thrust collar of the stem and another located above the thrust collar. The space between the O-rings and around the thrust collar shall be filled with a lubricant to provide the lubricating of the thrust collar and O-rings each time the valve is operated.

F. Butterfly valves. All valves twelve-inch or larger shall be Mueller Company No. B-3211-20 or equal, Lineseal Butterfly Valves, with mechanical joint ends, two-inch operating nuts, counterclockwise to open, and designed for 150 per square inches working pressure. Each butterfly valve shall be provided with a worm gear operator suitable for buried service, and a cast iron valve box.

G. Dry barrel fire hydrants.

(1) Location. Fire hydrants shall be located at all dead-end lines and spaced at least every 500 feet on straight runs of water supply lines and as directed by the Department.

(2) Type. Hydrants shall conform to AWWA Standard No. C 502-73 or latest revision thereof. In addition, the following specifications shall apply: dry-barrel fire hydrants AWWA Standard No. C 502-73.

(a) Hydrants shall be manufactured by the Mueller Company and shall be the Centurion fire hydrant - AWWA, which is the standard hydrant for the Township.

(b) Hydrants shall be dry-barrel, post-type with compression-type main valve closing with the pressure.

(c) Hydrants shall have a replaceable safety stem coupling and a replaceable safety flange at the ground line to prevent or minimize traffic damage.

(d) Hydrants shall have a four-and-one-half-inch main valve.

(e) The inlet connection shall be six-inch mechanical joint; dimensions shall comply with AWWA C 111 and ANSI A21.11 Standards.

(f) Working pressure shall be 200 pounds per square inch, and the pressure shall be 400 pounds per square inch.

(g) The dry top bonnet shall have a factory-lubricated bonnet assembly.

(h) The upper operating shall be bronze-encased and have an O-ring stem seal.

(i) The nozzles shall be threaded and locked in place with a stainless steel screw.

(j) The safety stem coupling shall be below the lower barrel flange surface to prevent it being held open by a vehicle wheel after traffic damage.

(k) Bronze seat ring shall thread into a bronze drain ring having two drain holes to provide an all-bronze drainway.

(l) The double drain valve shall operate automatically to force-flush the drainway each time the hydrant is opened or closed. No toggles, springs or adjustable mechanism will be allowed.

(m) The main valve opening shall be controlled by a lug in the bottom of the shoe.

(n) The design of the shoe and upper valve plate shall permit maximum flow by reducing friction loss to a minimum.

(o) Nozzles, three-way: two two-and-one-half-inch nose nozzles and one four-and-one-half-inch pumper nozzle, all with national standard hose threads.

H. Supply pipe connections.

(1) All supply pipe connections two inches or less in diameter shall be made using a corporation stop at the water main, Mueller Company No. H 15000 or approved equal, heavy-duty Type K copper service pipe between the new main and the curb box. Curb stop shall be Mueller Company H15214 or approved equal. A supply pipe connection shall be required for each lot along all on-site and off-site water mains.

(2) Corporation stops shall be installed using a double-strap service clamp, Mueller Catalog No. H 10533, or approved equal.

(3) The curb valve box shall be cast-iron extension type with one-piece lid, Mueller Catalog No. H 10314. Copper service pipe shall be arched prior to backfilling to compensate for any trench settlement.

(4) The curb valve shall be set in a gravel base to facilitate back drainage. Minimum cover is four feet above copper service pipe.

(5) All water meters and appurtenances shall be supplied by the Department at the expense of the owner.

I. Air release and surge control.

(1) Air-release valves shall be located at high points along water-supply pipelines to purge air pockets that may form at these high points. Air-release valves shall be installed in a valve vault and located below the frost line, which is assumed to be four feet. Valves shall be ventilated and shall provide for drainage of water.

(2) At locations where a sudden change in water velocity may occur (booster stations, check valves, etc.) a pressure-release valve shall be provided to relieve the surge pressures.

J. Stream crossings. Whenever water supply lines are to cross a stream or river below the bed, they shall be adequately sleeved and/or encased in no less than 1/2 foot of reinforced concrete within the reaches of the stream banks. Minimum depth of encasement below the stream banks shall be three feet. Waterlines crossing streams on culverts or bridges shall be thoroughly insulated and protected with steel sleeves.

K. Wet taps. All wet taps into existing water supply lines shall be made by a contractor approved by the Department. Tapping sleeves shall be cast-iron or ductile iron mechanical joint Mueller H6 15 or H6 16, depending on the outside diameter of the pipe being tapped. Sleeves shall have a minimum working pressure of 200 pounds per square inch. All sleeves and valves shall be set perfectly level along the center lines of the pipe tap. Valves, fittings and pipes shall conform to the applicable standards outlined herein.

L. Sanitary protection.

(1) Chambers or pits containing valves or meters or other appurtenances shall be adequately drained. Drains shall not be connected directly to any sanitary sewer.

(2) Any air-relief or vent pipes from chambers or beds must extend at least one foot above ground and be equipped with a down-facing elbow and insect screen. Physical connections other than the double-check valve assembly or reduced-pressure zone backflow preventer assembly are not permitted.

(3) While installing new water pipes, pipelines shall not be laid in water or where they can be flooded with water in the laying process. Underground drains from hydrants and valve chambers shall not be connected directly to sewers or storm sewers.

(4) In accordance with state regulations, waterlines should be laid at an elevation above that of nearby sewers with joints no closer than 10 feet from the sewer pipe center line. If this is not possible, water pipe shall be sleeved or encased in concrete with watertight tested joints. Where waterlines cross sewer lines, waterlines shall be laid above the sewer lines with vertical separation of not less than 18 inches.

(5) Hydrostatic pressure tests shall be performed to determine if there is any leakage.

(6) New water supply lines shall be disinfected by one of the procedures outlined herein before being placed into service. The absence of contamination shall be demonstrated by bacteriological examination before new lines and appurtenances are placed into service or accepted by the Department. The Health Department shall certify this examination.

M. Disinfection. Before new waterlines are placed into service or accepted by the Department, they must be flushed and disinfected with chlorine solutions. During construction, precautions shall be taken to avoid unnecessary contamination. Disinfection is accomplished by one of the following methods. All are described in the American Water Works Association Standard on Water Main Disinfection, AWWA C601, latest revision: continuous feed method, slug method, tablet method. In all cases, disinfection procedures shall be performed in accordance with N.J.A.C. 7:10-11, Subchapter 11, Standards for Construction of Public Community Water Systems, Part 11.13, Disinfection.

N. Testing.

(1) Before waterlines are placed into service or accepted by the Department, they shall be hydrostatically pressure tested. The Engineer shall witness the test. The pressure test shall be performed between valved sections of waterlines and shall be submitted to a pressure of 150 pounds per square inch for a duration of four hours.

(2) Each valve section of pipe shall be slowly filled with water, and the specified test pressure shall be applied by means of a pump connected to the pipe in a manner satisfactory to the Engineer. The pump, pipe connection, gauges, and all necessary apparatus shall be furnished by the developer. Before applying the specified test pressure, all air shall be expelled from the pipe. If hydrants or air reliefs are not available at high places, the necessary taps shall be made at points of highest elevation before the test is made and the plugs inserted after the test has been completed.

(3) A leakage test shall be conducted after the pressure test has been satisfactorily completed. The duration of each leakage test shall be two hours, and during the test, the main shall be subject to a pressure of 150 pounds per square inch and not permitted to fall below 145 pounds per square inch. "Leakage" is defined as the quantity of water to be supplied into the newly laid pipe or any section thereof, necessary to maintain the specified leakage test pressure after the pipe has been filled with water and the air expelled. The maximum allowable leakage for the pipe shall be determined by the formula:

	L =	NDP 3,700
	In which:
	L = The allowable leakage in gallons per hour.
	N = The number of joints in the length of the pipeline tested.
	D = The nominal diameter of the pipe, in inches.
	P = The average test pressure during the leakage test, in pounds per square inch.

O. Meter boxes. Meter boxes shall be Ford Meter Box Company, Model PDBB-288-20-60 Plastic Pitsetter, twenty-inch diameter by sixty-inch deep, with double lid-locking cover and electronic meter reading feature, Ford Cat. No. W-3T. The meter box shall be factory equipped with copper riser tubes and angle ball valves on both the inlet and outlet sides of the meter. The meter box shall be installed such that the lower end extends to its full depth of 60 inches so that soil below the frost line is exposed for added protection against freezing. The top of the lid shall be set flush with the surrounding lawn or sidewalk area. The supply pipe from the water main and the service pipe to the premises shall be installed at a minimum of 48 inches below the surface of the ground. Where a pressure-reducing valve (PRV) is required to be installed upstream of the water meter, a second meter box, with locking cover, shall be provided to contain the PRV. Angle or straight ball valves, as appropriate, shall be provided on the inlet and outlet sides of the PRV. The meter box for the PRV shall be located immediately adjacent to the meter box for the water meter and shall be installed in accordance with the requirements set forth above.

[Added 12-11-2007 by Ord. No. 2007-56]