08/12/2019 BOARD OF SELECTMEN Agenda Packet

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SHARED WASTEWATER E Towns of Bourne, Falmouth, as ee Sandwich and Joint Base Cape Cod Executive Summary The Towns of Bourne,Falmouth.,Mall pee and Sandwich were awarded two Community Compact Cabinet's Efficiency and Regionalization. Grants for'a ,Shared Wastewater Management Study. .. Subsequent to the second grant award, the Ton of Barnstable expressed interest in the Shared Wastewater Management Study and separately funded the necessary study activities to "catch up" to the other four:towns and to incorporate that content into-this revised report. Massl evelopment also participated in the planning efforts. The purpose of the study is to prepare an engineering assessment:dor a potential partnership for shared wastewater management options among the towns to utilize and expand the Joint Base Cape Cod(JBCC) collection,treatment,transport and effluent disposal systems for regional use. The following items represent an executive summary of the key issue's that need to be understood and resolved by participants, regulatory agencies and stakeholders, The four Upper Cape tows Bourne, Falmouth, Mashpee and Sandwich) and Barnstable all, have significant wastewater treatment and disposal'needs in order to meet the water quality requirements issued in DEP Totala imum Daily Load (VIOL) Reports and to meet other town wastewater management objectives. one potential way to address some or all of these needs is through a significant expansion of JBCC wastewater treatment and disposal infrastructure to serve as a regional facility. As a part of this study, the Upper Cape towns provided estimates of"waste eater management needs that could be addressed by a. potential regional facility, As a part of a parallel study, Barnstable provided similar estimates. The total of the wastewater management needs provided by the five towns is 4,550,000 gallons per dad annual average basis) of sewage treatment and/or effluent disposal capacity. Refer to Sections 1.6 and 2.2 for additional information. The existing JBCC treatment and disposal system has approximately 75,000 to 100,000 gallons per day annual average flow basis) of available capacity. The available cqp,ac,iIy at the exist' J CC treatment and dis osal system addresses only 2�';'� of the identified need. To serve the needs of the Upper Cape and Barnstable, a new significantly larger WWTF and' effluent 13839B—Rev.June 2019-DRAFT ES- 1 Wright-Pierce