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3 <br /> Board of Selectmen <br /> Minutes <br /> August 5, 2019 <br /> Presentation of Executive Summary of Joint Base Cape Cod Wastewater Management Plan; <br /> Ed Leonard- Wright Pierce: (continued) <br /> The project goals outlined in 2017 identified capacity and cost information for a shared wastewater approach. <br /> Interest has been defined and it has been determined that it is advantageous to continue planning. Key issues <br /> and goals in 2019 refine the implementation plan by exploring permitting, funding and financing, defining the <br /> management entity and inter-municipal and intergovernmental agreements, and defining effluent force-main <br /> capacity and effluent disposal methods and locations. <br /> Mr. Leonard indicated that based on the requested capacity there is a significant need to expand the capability <br /> of the treatment plant to accommodate the flow. The study identifies the following capacity requests; <br /> Bourne Effluent& Sewage <br /> Falmouth Effluent <br /> Mashpee Sewage <br /> Sandwich Sewage <br /> Barnstable Sewage <br /> Based on flow assumptions, there is a need to construct a new treatment plant. However, this takes a fair <br /> amount of time, 8-10 years for permitting, design and construction. And,there is limited land available for <br /> conventional land-based disposal. Effluent disposal is the principal constraint due to issues with Zone II water <br /> protection areas, contaminated plumes, nitrogen sensitive watershed areas, water supply reserve areas and <br /> training areas. The base is comprised of approximately 22,000 acres. Due to the environmentally sensitive <br /> areas only about 100 acres would be usable for the discharge of treated water. Discussions are ongoing with <br /> the Army Corps of Engineers to transfer land at the base. It has been determined this is a plausible action and <br /> there are no insurmountable issues with disposal. <br /> Four effluent disposal options have been determined as technically feasible and permissible. This includes <br /> rapid infiltration, wicks, deep well injection and use of the Cape Cod Canal for discharge. <br /> Mr. Leonard indicated he is currently meeting with key stakeholders to discuss the approach and to make <br /> known any challenges. The DEP was noted to be in support in their letter issued in May 2019. <br /> Under the Candidate Plan, six different alternatives are considered. Each participating community would <br /> construct conveyances to JBCC. The new wastewater treatment facility would be constructed at JBCC with <br /> additional transport-to-disposal piping constructed. The Plan includes the continuation of the effluent disposal <br /> at the existing RIB site and the construction of new effluent disposal at a combination of sites. <br /> The estimated capital cost for the Upper Cape towns is $154 million. The estimated cost for the Upper Cape <br /> Towns including the Town of Barnstable is $229 million with an annual maintenance cost of$4.6 million. The <br /> April 2019 cost projections do not include local collection systems costs at JBCC and within individual towns. <br /> Mr. Leonard indicated the cost effectiveness model prepared by GHD, Inc. reveals that it is cost effective for <br /> Mashpee to pursue JBCC in the short term versus doing this independently. The regional approach provides <br /> sufficient advantages to warrant continued planning. <br /> Each stakeholder will be required to conducts its own detailed assessment of cost effectiveness, and then <br /> determine the desired levels of participation. <br />