PAY  YOUR  BILL  ONLINE

District News

Water Main Flushing

General Information

Customer Service

Emergency Contact

Distribution Division

Treatment Division

Service Division

Administration

Employment Opportunities

Construction Schedule

Watershed Protection

     Dig-Safe

Links

Home

KITTERY WATER DISTRICT

Water Main Material and Installation Specifications 

March 2009

 Water Main

·        ductile iron

·        class 52 thickness class

·        Tyton joint

·        double cement lined

Ductile Iron Fittings

·        class 350

·        made in the USA or Canada

Ductile Iron Gate Valves

·        250 P.S.I. working pressure

·        open left

·        resilient wedge

·        stainless steel nuts and bolts

·        valve centering rings are required

·        mud plugs are required

Fire Hydrants

·        AFC waterous Pacer WB 67 (no exception taken)

·        open left

Service Boxes

·        4 ½’ - 5 ½’ height

·        rope thread with pentagon nut

Valve Boxes

·        cast iron

·        36” top flange

·        36” bottom base belled (minimum length)

·        5 ¼” diameter

·        drop in cover with pick hole with the word “water” cast in the cover

·        made in the USA or Canada

Corporations

·        minimum size 1” for residential

·        Mac Pac compression style nut

·        ball construction

·        AY McDonald or Ford brand

·        CC thread type

Curbstops

·        minimum size 1” for residential

·        Mac Pac compression style nut

·        ball construction

·        AY McDonald or Ford brand

Service Lines

·        Service lines shall be K-copper tubing

·        Minimum size of tubing is 1”

Stainless Steel Service Rods

·        ½” x 24” long

·        s.s. or brass pin

Tapping Sleeve

·        series 304 s.s.

·        ductile iron or s.s. welded flange

·        size on size taps are not permitted on cast iron water mains

Retainer Glands

·        Romac grip ring brand

·        MJ Field Lok brand

·        MEGA Lug brand

Installation Requirements

Inspection

·        Spot inspections will be performed by the District and paid for by the Developer.  If needed, a full time inspector will be assigned at the Developer’s expense.

Bedding and Backfill

·        Ledge must be excavated a minimum of 6” below the pipe.

·        6” of sand bedding under the pipe and 6” on each side.

·        12” of sand backfill above the pipe.

·        Minimum earth cover over the top of the pipe is 5’-0” (finish grade to top of pipe).

·        The remainder of the trench is to have suitable compacted backfill material.

Blow Offs

·        High density polyethylene (H.D.P.E.) blow offs are fabricated and installed by KWD (time and material jobbing rates apply).

·        Valve and riser shall be 2”.

Services

·        Upon successful completion and acceptance of the water main, KWD will install the water services within the right of way.  Normally, KWD provides the material and labor and the contractor does the digging and backfilling (time and material jobbing rates apply).

·        Sand bedding is also required 6” below the copper tubing and 12” above.

·        Services that exceed more than 150 feet from the curbstop will require a meter vault to be installed by KWD.

·        26” top flange valve box top sections and covers are to be installed over all service boxes.

Fire Hydrant Installations

·        The traffic break flange of the hydrant shall not be more than 6” above the finish grade.

·        Valve anchoring tees are to be used for all hydrant installations and lateral water mains.

·        Marker poles will be provided by the District and installed by the contractor in the appropriate location (material rates apply).

Water Main Acceptance Policy

·        The newly installed water main will be filled, flushed, hydrostatically tested and chlorinated by KWD (time and material jobbing rates apply).

·        A negative bacteria result is needed before the water is used for any reason.  KWD will take this sample and have it analyzed (this cost is included in the testing fee).

·        An as-built drawing of the water main installation is required before acceptance of the main by KWD.

·        Acknowledgement and execution of any agreements (fire protection lines, fire hydrants, etc.).

·        Execution of an easement, if applicable.

·        Payment to KWD for all invoiced services and materials.

Meters

·        Meters are both supplied and installed by KWD (time and material jobbing rates apply).

NOTES:

·        All materials that are installed are to be made in the USA or Canada.

·        Inspection and service work will be billed at the District’s current jobbing rates.

Send mail to GuyHKWD@comcast.net with questions or comments about this web site.
Last modified: 04/26/10