08/12/2019 BOARD OF SELECTMEN Agenda Packet

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SHARED WASTEWATER MANAGEMENT STUDY Towns of Bourne, Falmouth, Mas pee Sandwich and Joint Base Cape Cod Executive Summary disposal system would need to be constructed. Refer to Section 1.4.9 for additional information. * There appears to be more than adequate land available within the Cantonment for a new regional WWTF as described herein. Refer to Sections 2,.5,' 2.8 and 2.9 for additional information on the potential regional WWTF. * Several methods of effluent disposal were evaluated as a part of this study. The most favorable methods include rapid infiltration basins, wicks and surface water discharge to the Cape uod Canal. Refer to Sections 2.7, 2.8 and 2.9 for additional information on the potential regional treatment facility. * Although, JBCC consists of approximately 22,000 acres, there is very little land which could be utilized for expanded land-based effluent disposal without review and approval by others. Much of the JBCC land is protected by the Environmental Management Commission (EMC) and/or is in nitrogen-sensitive watersheds and/or is in Zone 11 public water supply protection areas and/or 'is impacted by historic groundwater contamination plumes under remediation. -Significant expansion of effluent disposal capacity will require careful coordination with the militaKy, ACOE, ,EPA, DEP, .. Environn-ientai management Commission and the Commonwealth. Refer to Sections 2.7 and 4.2 for additional infon-nation. An "Effluent Disposal Workshop" was held at JBCC on May 9, 2019. The workshop was attended by over 24 individuals representing EPA, ACOE, DEP, Massachusetts Coastal Zone Management, Environmental Management Commission, Massachusetts it National Guard - 102 d Intelligence Wing,Massachusetts An-ny National Guard, Cape Cod Commission, Upper Cape Regional Water Supply Cooperative,Buzzards Bay Coalition, Town of Falmouth, Town of Sandwich, and Town of Barnstable, During the workshop, several potential land-based disposal 'Sites within the Upper Cape-Water Suppler Reserve and on land owned by the Army Corps of Engineers (,ACOE) as well as one potential surface water discharge site to the Cape Cod Canal were discussed. At the conclusion of the meeting, all attendees agre,ez,,dthat there are numerous review processes that need to be undertaken (e,.g., ACOE,.—Environmental .#" . Management uommission,NPDES permi,t gp-plication, etc.) and furter ed that there were no insurmountable issues associated effluent disposal sitingandpermitting_that could be identified. Refer to'Section 4.2 for additional information. 13839B—Rev.June 2019-DRAFT ES-2 Wright fierce