01/27/2020 BOARD OF SELECTMEN Agenda Packet

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7 i Board of Selectmen Minutes January 6, 2020 r Update on Condition of,Santuit Pond and Proposed Short Term. Ste s to Improve water Quall.......... Department of Natural Resources Director Richard Yorl� Conservation Agent Andrew McManus Health Agent glen'Harrin ton: (continued) _ There is no evidence of juvenile or adult herring. The screen mesh to be constructed w' ill prevent native species from entering into the bog. The pond averages 6' with a depth of 8' in the deepest locations. A drop in the pond of 5-6" would allow the pond to recharge, and hopefully achieve the goal of removing phosphorus from the pond, It was noted that-it would be impossible to flush.the pond with normal exchange. The flooding of the pond may support the Solar Bee circulation and flow process. weekly monitoring is being conducted and would continue in this process. To improve upon the water quality of Santuit Pond, a privately owned 7-acre active cranberry bog and surrounding upland properties are being considered for purchase. Additional goals-related to the 13.78 acre properties would allow for freshwater wetland restoration, the creation-of wildlife habitat and open space for passive recreation. The purchase.of-the Chopchaque Bog would also improve water quality in Shoestring Bay to mitigate phosphorous and reduce nitrogen loading. The use of Community Preservation Act funding was defined as a funding source and permissible use of funds. In considering the goals of the project, it was.agreed applications would be prepared in request of CPA funding at the May 2020 Town Meeting. Additional remediation measures include the restoration of the Town landing at Santuit Pond which includes stormwater runoff improvements and fertilizer reductions. Glen Harrington, Board of Health Agent made several recommendations to,address the algae bloom at Santuit Pond., with the jurisdiction of the Board of Health and as recommended by the AECOM study of the pond, septic inspections of the abutting properties will help determine if any of the systems are failing and not treating septic waste properly. A list of abutters within 3 00' of the pond has been compiled. A longer solution would include the septic inspection of all septic systems within the Santuit Pond watershed. Fundingfrom.the Barnstable Count Community Septic Loan Program.is available, and there are �' p additional mitigation monies from the Cape Cod Commission for use to reduce nitrogen in Mashpee. Discussion followed regarding-potential,incentives and subsidy to present to the public before inspections are conducted and notice is provided of failure. The funding source for the cost of the septic system inspection was considered, but not fully identified. There ate no private roads around the pond. Other actions to consider include a survey of water run-off at specific locations,vegetative swales, catch basins, and public.outreach regarding the use of fertilizers,-laut.dry soaps and.other phosphorus- containing products for those properties within the Santuit-Pond watershed. Advisory signage is now posted at (3) locations in the area of Santuit Pond. It was also noted that sewering of the Santuit Pond area is also listed in the Local Comprehensive Plan. There is a need to continue with the Solar Bee circulators, the fertilizer bylaw, and to utilize the bog treatment approach,