HomeMy WebLinkAboutSP-20-020 - Supplemental - 0064 Aiken Street (88)Memo
To: Marla Keene
From: Jay Nadeau, Water Superintendent
Date: April 23, 2020
Re: 10146 Site Plan Subdivision, 64 and 96 Aiken Street
Below are technical review comments from the SBWD in regard to the proposed water infrastructure and details for the above referenced project.
Sheet C2.2: Water service lines are to be perpendicular into buildings from the main. The water service line into Building 4A includes at least four (4) bends. Design should be adjusted
to minimize the number of bends, even though part of the service line has already been installed.
Details to include the following language from the CWD Specifications:
“All water lines and appurtenances shall be installed in accordance with the Champlain Water District Specifications and Details for the Installation of Water Lines and Appurtenances,
current edition, henceforth CWD Specifications.”
All Ductile Iron pipe, hydrant barrel, and fittings for new water lines and appurtenances shall be installed with V-Bio Enhanced Polyethylene Pipe encasement. See CWD Specifications
for details.
The project shall be constructed, completed, maintained, and operated in accordance with the approved plans. No changes shall be made in the project without the written approval of
the appropriate CWD Division.
When a pipe material is specifically noted on the approved project drawings, the contractor/developer shall not have the option of utilizing any other pipe material.
POLYETHYLENE PIPE ENCASEMENT
V-Bio Enhanced Polyethylene pipe encasement is required for all ductile iron pipe installations and shall conform to the current AWWA C105/ANSI A21.5 standard.
The polyethylene encasement shall prevent contact between the pipe or fittings and the surrounding backfill and bedding material and shall be installed as outlined in section 4.1 of
the above AWWA/ANSI standard. Lumps of clay, mud, cinders, etc., on the pipe shall be removed prior to installation of the polyethylene encasement. During installation, soil or embedment
material shall not be trapped between the pipe and polyethylene. Overlap and ends shall be secured with polyethylene adhesive tape. All cuts, tears, punctures, or damage to the polyethylene
shall be repaired with polyethylene adhesive tape or with a short length of polyethylene sheet, wrapped around the pipe to cover the damaged area, and secured in place. Backfilling
around polyethylene-wrapped pipe shall be in accordance with ANSI/AWWA C600.