07/10/2006 SELECT BOARD Minutes - Laserfiche WebLink

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5 Board of Selectmen Minutes July 10, 2006 Sewer Commission—"Status Update: Tom Fudala was in attendance with members of the Sewer Commission to discuss the status of the Mashpee Watershed Nitrogen Management Plan. Information was distributed that detailed the Popponesset Bay Massachusetts Estuaries Program Report, the Quashnet River-Hamblin Pond-Jehu Pond MEP Report and the Three Bays Massachusetts Estuaries Program Report. It was noted the Waquoit Bay-Eel Pond-Childs River MEP Report is not complete to date. Septic systems were deemed the largest contributor of nitrogen in the Popponesset Bay embayments. The second largest contributor of nitrogen derives from fertilizers and runoff. Maps enclosed in the report depicted the average total nitrogen concentrations from the results of the present conditions loading scenario for Popponesset Bay. The findings detailing the three eastern sub-embayments of Waquoit Bay; the Quashnet River, Hamblin Pond and Jehu Pond have found that • sediments are deemed the largest contributor of nutrient loading. Septic systems,fertilizers and run-off follow. The report documented sewer modeling and preliminary design evaluations for potential wastewater discharge areas. Capital costs for the combination gravity/low pressure system reflect an estimate of$110,000. The low pressure system and vacuum system are each estimated to cost $120,000. The estimates were prepared in November 2005 by Stearns & Wheler,LLC. The Popponesset Bay Pilot Project funded by the U.S. Environmental Protection Agency,UMASS-Dartmouth in May of 2006 presents alternative wastewater treatment scenarios modeled using the Massachusetts Estuaries Program Popponesset Bay Model. In scenario#1, 100%nitrogen is removed from the Mashpee River watershed below Mashpee Pond,the Santuit River watershed below , Santuit Pond,the Cotuit Water District Well #5 watershed and the Shoestring Bay watershed. Scenario 1 + 1 involves 100%nitrogen removal from the watersheds as identified to include the watersheds of the Mashpee Water District Quaker Run well and the watershed of Quaker • Run.