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Town of Mashpee Sewer Commission <br /> t <br /> 16 Great Neck Road North <br /> Mashpee, MA 02649 <br /> stations or low-pressure sewering, treatment and recharge for the Waquoit watershed, and <br /> infrastructure sized to meet approximately 30% of the nitrogen reduction goal for Waquoit Bay, <br /> serving roughly 1,050 developed and developable parcels. The project scope is expected to align <br /> with State Revolving Fund(SRF) limits of approximately $150 million over a multi-year period, <br /> with final boundaries refined during design. <br /> The expansion of Phase 3 results in adjustments to later phases. Phase 4 now includes Great <br /> Neck Road South within the Popponesset Bay watershed and areas located in portions of both <br /> the Popponesset and Waquoit watersheds. Phase 4 would address additional collection systems, <br /> treatment plant upgrades in both watersheds, sewering that could not be completed in earlier <br /> phases due to constraints such as terrain or paving timing, and potential sludge processing <br /> capacity if regional solutions are not implemented in time. Phase 5 has been slightly modified to <br /> include additional northern areas and would continue build-out of collection systems, with future <br /> phases potentially broken into smaller sub-phases to balance costs and timing. <br /> Mr. Drainville emphasized regulatory drivers, noting that watershed permits require <br /> achieving at least 75% of total maximum daily load(TMDL) nitrogen reductions within 20 years <br /> of permit issuance, though the State is encouraging movement toward full (100%) compliance. <br /> Popponesset Bay was described as highly degraded, requiring sewering of nearly all feasible <br /> areas and reliance on limited supplemental measures, while Waquoit Bay includes contingency <br /> areas that could be sewered if additional reductions are needed. <br /> The presentation also addressed coordination with DPW on paving projects, including <br /> Route 151 reconstruction, to minimize future roadway impacts, and outlined the need for an <br /> additional treatment facility on Town-owned land to serve the Waquoit watershed as flows <br /> increase. Questions from Commissioners focused on SRF funding limits, treatment plant siting, <br /> phosphorus management, sludge processing contingencies, and the importance of keeping treated <br /> effluent within its originating watershed to avoid re-introducing nitrogen. <br /> Mr. Drainville concluded by outlining next steps: <br /> 1. completing revised nitrogen removal and cost estimates; <br /> 2. updating the watershed management plan as a Notice of Project Change; and <br /> 3. requesting a joint meeting with the Select Board and Sewer Commission to seek <br /> authorization to submit the plan through the MEPA public review process. <br /> MOTION: To make a recommendation for the new sewer phasing to be submitted <br /> for recommendations to the Select Board. <br /> Motion by: Alfred Towle Seconded bv: Cody Erickson <br /> Vote: Motion passed by unanimous vote. <br /> (Meredith Harris, Alfred Towle, Cody Erickson, Mohan Nair) <br /> ADDITIONAL TOPICS (not reasonably anticipated by Chair) <br /> Discussion—Billing Methods and Rates <br /> Wastewater Superintendent Jared Meader requested Commission approval to schedule a <br /> public hearing to modify the billing method, while keeping previously approved sewer rates <br /> unchanged. He explained that staff recommend using a temporary flat-rate billing approach, <br />