08/12/2019 BOARD OF SELECTMEN Agenda Packet

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d SHARED WASTEWATER MANAGEMENT STUDY Towns of Bourne, Falmouth, s pee, Sandwich and Jol*ntase Cape Cod Executive Summary To accommodate the regional flows identified by the Tipper Cape towns, the estimated capital cost for the "candidate plan"' is $154 million for the regional conveyance, treatment,transport and disposal facilities (excluding any local collection system infrastructure within the towns). The annual operations and maintenance costs for these regional facilities are estimated at $3.1 million. These costs are presented in April 2019 dollars (ENS.. CSI 11228). defer to Section 2.9 for additional information. If the additional flow identified by Barnstable was included, the estimated capital cost for the "candidate plan's is $229 million per the expanded regional facilities (again excluding the local collection system infrastructure within the towns). The annual operations and maintenance costs for these expanded regional facilities are estimated at $4.6 million. These costs are presented in April 2019 dollars (ENR CCI 11228). Refer to Section 2.9 for additional information. In terms of total equivalent annual cost i.e.,including capital cost and annual operating casts), the least expensive options are advanced wastewater treatment with biological nutrient removal plus a combination of land-lased and surface water-based disposal. An evaluation of non- financial factors results in similar conclusions with regard to the most favorable options. Refer to ,Section 2.9 for additional information. A key factor in evaluating any regional solution is whether the regional solution is cost ef"f"ective when compared to other local options that a community may have. While a detaile assessment of the "non- CC alternatives" available to each of the towns was beyond the scope of this study,a broad assessment ofcost-effectiveness was completed for the Upper Cape towns. Based on this broad assessment, there are sufficient advantages and cost-effectiveness for theartici aatin mur�. . p p rclpalitres to warrant continued planning efforts. Refer to Sections 2.9, 2.10 and 2.1 l for additional information. Ultimately, each.town.needs to perform its own detailed assessment of the cost-effectiveness of a regional ,IBCA` ,solution versus the other local options that they may have and then each town will reed to commit to its desired level of participation. It is iMortant to recd -lite that when one p,articipant changes its amici ation level i.e. whemer an increase or decrease),,_that 13839B ....Rev.June 2019-DRAFT ES -3 Wright-Pierce