01/28/2019 BOARD OF SELECTMEN Agenda Packet

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4 *DRAFT*Board of Selectmen Minutes January 15, 2019 The JBCC WWTF is a robust system which recharges near the Cape Cod Canal. There is a lot of land for expansion, however there are issues regarding ownership and the system is in need of repair. At this time, cost assumptions are unknown. Back road sites owned by the Town of Mashpee may be identified as future treatment locations. Site 6 near the Fire Substation is under consideration as a WWTF. Discussion followed with respect to the re-use of treated water that would be drinkable and essentially sterile. It was also suggested the Town consider permitting for the outfall approach. The ocean outfall option has not been taken into consideration, and may be considered as a future approach. Hydraulic load testing would examine the impacts as part of the permitting, and should be considered. It was noted the Town of Falmouth has studied the ocean outfall approach. With tidal flush, it is possible, but there are unknowns regarding the length of offshore pipe that is required. The direct ocean discharge of treated wastewater is listed on a contingent basis required to demonstrate no high treatment levels, or a town is not authorized to use ocean treatment. It was asked if an eminent domain taking could be considered within potential discharge locations. The town tends to use the eminent domain taking process sparingly. It was suggested that conversations with private entities be conducted initially. Negotiations will dictate the results for the remainder of the Plan. There was a question regarding Site 7 in New Seabury and its proximity to a public well that may become an issue. It was noted that groundwater modeling would be conducted to determine the flow direction. In considering discharge on golf courses there are drip disbursals which are similar to irrigation,but deeper. The process is less disruptive with small diameter piping. The discharge would not be used to irrigate the golf course, but serve as a discharge area. This has been done at the White Cliffs golf course in Plymouth. In considering this method, there is technology developed for the use of gray water for irrigation purposes. The Town of Yarmouth uses effluent from a septage treatment facility as spray irrigation. As an alternative the Town of Dennis uses deep well injection, however disinfection is required.