4D, 2011 PMP Feasibility Report - Laserfiche WebLink

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by the Public Works staff, the watermain breaks have been as a result of pipe displacements and settlements; PVC pipe will be less conducive to these types of watermain breaks. Water system improvements in the Arden View neighborhood will include all associated valves and hydrants near the roadway areas. There have been a substantial amount of watermain breaks in the Arden View neighborhood that are outside of the City's roadway areas. City staff will be exploring improvement alternatives to these watermains and will consider them for the City's long-term maintenance plan. Sanitary Sewer System The recommended sanitary sewer system improvements are relatively minor and include maintenance on selected manholes. However, within the Janet Court cul-de-sac, City staff is proposing that a segment of the existing sanitary sewer pipe be removed and replaced to eliminate a sagging pipe. All of the pipe segments within the project have been televised and inspected and are in sufficient operating condition. From the televised inspection, City staff will be considering selected sewer pipes be improved within a future lining project, prior to the proposed 2011 PMP project commencing. REQUIRED PERMITS The anticipated permits required for the proposed project are as follows: Minnesota Pollution Control Agency (MPCA) ............................... NPDES Erosion & Stormwater Ramsey County .................................................................................................Right-of-way Permit Minnesota Department of Health (MDH) .......................................................... Watermain System Rice Creek Watershed District (RCWD) ....................................................................... Stormwater During final design for the project, City staff will coordinate with the Rice Creek Watershed District to determine the appropriate infiltration requirements. 12