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f.r. mahony& associates, inc. <br /> tel. 781.982.9300 <br /> fax. 781.982.1056 <br /> water supply and pollution control equipment <br /> info@frmahony.com <br /> www.frmahony.com <br /> 273 Weymouth Street^ Rockland,MA 02370 <br /> March 14, 2011 <br /> Mashpee Sewer Commission <br /> Town Of Mashpee <br /> Mashpee, MA <br /> RE: Town of Mashpee Multiple Sites Collection Areas <br /> Low Pressure Sewer Analysis <br /> Dear Sirs; <br /> These preliminary design analyses examine the use of a low pressure sewer system <br /> using Environment One Grinder Pumps for the identified collection areas in the town <br /> of Mashpee. The low pressure sewer approach provides not only a technical <br /> solution, but also an economic advantage to be realized with low up front and O&M <br /> costs. <br /> Using the information you provided and Google Earth, 1 ran the enclosed preliminary <br /> pressure sewer pipe sizing analysis. This was run through our Low Pressure Sewer <br /> Design Software that employs our Flow Velocity and Friction Head Loss vs. Pumps <br /> in Simultaneous Operation Spreadsheet. We have used the surface topography <br /> provided to make our analyses. ""1 thank"Robert B. Our Corp. for providing"installed <br /> pipe cost that includes repaving. <br /> System'Analysis <br /> The following sites were examined: <br /> • Back Road Site Collection Area <br /> • Heritage Park Site Collection Area <br /> • High School Site Collection Area <br /> • Keeter Site Collection Area <br /> • New Seabury Collection Area <br /> • Transfer Station Site Collection Area <br /> The South Cape Village/Mashpee Commons Site was not examined as more <br /> detailed information about the extent and layout of the existing sewer system is <br /> needed for analysis. <br /> 30 DuPaul Street 41 Bayberry Hill Road <br /> Southbridge, MA 01550 W.Townsend, MA 01474 <br /> tel. 508.765.0051 tel. 978.597.0703 <br />