Wilkinsonville Water District

​WILKINSONVILLE WATER DISTRICT

13A PROVIDENCE ROAD

P.O. BOX 173

SUTTON, MA  01590

(508) 865-0060
FAX (508) 865-5993




SPECIFICATIONS FOR THE INSTALLATION OF WATER

  MAINS AND SERVICE LINES

2008
Revised: 2013



 

 

INTRODUCTION


            The Wilkinsonville Water District (WWD) is a municipal public water supplier and must adhere to strict standards required by the Department of Environmental Protection.  Any deviation from the specifications set forth in this document or the WWD “Bylaws & Rules and Regulations” is strictly prohibited.  In the event WWD must perform modifications to work that does not conform to the specifications stated below, the contractor will be charged accordingly.

 

WATER MAINS


            Written approval from WWD for extending water mains or tapping water mains must be obtained prior to the start of construction.  Water mains shall be Ductile Iron Pipe Class 52 or PVCO Distribution Pipe AWWA C909-09 Class 200 (Molecularly Oriented Polyvinyl Chloride (PVCO) NSF / ASTM F1483 Certified) and shall conform to AWWA specifications.  Tracer tape with no splicing must be used with AWWA C909-09 (PVCO). WWD shall determine the size of the water main.
 
            Fittings for AWWA C909 has ductile iron (DI) outside diameters (O. D.), making standard PVC gasket fittings compatible. (Note: solvent weld PVC fittings cannot be used.) Ductile iron or cast iron mechanical joint fittings and ductile iron push on type fittings can be installed directly onto AWWA C909, using the standard M.J. gasket made for cast iron or ductile iron pipe. When using M.J. fittings, 55 ft. /lbs. of torque is recommended.

            Valves shall be AWWA approved resilient seat and open left.  Hydrants shall be either M&H 129 or Clow Medallion and open left.  Hydrant branches shall be 6” Ductile Iron.  All water main work will require inspections by WWD.

 

SERVICE LINES


            Service Lines – A water service line is divided into 2 categories.  The first segment consists of the pipe from the water main to the shut off valve, including the shut off valve, is owned and controlled by the WWD.  Service boxes shall be Erie w/rod.

            The second segment of the service line consists of the pipe exiting the shut off valve and entering the building.  The second segment is owned and maintained by the property owner who is responsible for it.

            Service line installations must be inspected by WWD.

 

APPLICATION FOR CONNECTION


          An application for service must be received by the WWD office one week prior to the scheduled start date for construction.  The application must be completed and the application fee paid prior to the start of construction.


TRENCH WORK


Water Mains


            Water mains shall be buried a minimum of five feet and a maximum of six feet.  Bank run sand (absolutely no rocks) must be placed on the bottom of the trench for its entire width and length to a minimum depth of six (6) inches for ductile iron and one (1) foot for PVCO Distribution Pipe (AWWA C909).  The bottom sand shall be raked or shoveled to form a level surface on which to rest the pipe.

Bank run sand must be placed over the water main for the entire length and width of the trench a minimum of one (1) foot above the pipe.  The sand shall be compacted around the pipe and leveled to form a uniform depth of sand for the entire length of the excavation.         

 

Service Lines


            The service line valve shall be installed in a straight line from the shut off to the entrance of the building perpendicular to the water main in the street or easement.  Under no circumstances shall the service line be installed other than a straight line from the shut off perpendicular to the main unless written approval is received from WWD.

            The service line shall be buried a minimum of four (4) feet measured to the top of the pipe from the finished grade elevation and a maximum depth of five and a half (5.5) feet measured from the finished grade elevation.

            Regardless of soil characteristics, bank run soil (absolutely no rocks) must be placed on the bottom of the trench for its entire width and length to a minimum depth of six (6) inches.  The bottom sand shall be raked or shoveled to form a level surface on which to rest the service line.

            Regardless of soil characteristics, bank run sand must be placed over the service line for the entire length and width of the trench a minimum of one (1) foot above the service line.  The sand shall be compacted around the pipe and leveled to form a uniform depth of sand for the entire length of the excavation.

            Under no circumstances shall any rock, stone, boulders, etc. be placed in the excavation, which exceed eight (8) inches in diameter.  In the event rock, stone, boulders etc. are excavated, they must not be returned to the trench as part of back fill material.


PIPE MATERIALS


            Service lines will be installed using only Class 200-PSI SP232 1” polyethylene.  Written approval must be obtained to use any other size.  All fitting will be compression type AWWS approved.

 

REQUIREMENTS


            All excavation work including trench materials and road repair will be the responsibility of the contractor.  The contractor, who performs the excavation in any roadway, right of way or other town, state or private property, is responsible to obtain the necessary permits and approvals prior to the commencement of work.  The contractor is also responsible to repair any surface to its original condition.  WWD is not responsible for the maintenance or any future concerns with the condition of the road due to work performed by a contractor.

            WWD must be contacted 48 hours prior to the start of construction to schedule an inspection or installation.

            Certificates of Insurance must be furnished to the WWD prior to the start of work.