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EXHIBIT A—AMENDMENT TO SCOPE OF SERVICES <br /> Delete Tasks V, VI, VII, VIII, IX and X in their entirety. Replace with the following revised scope of work: <br /> Phase VII Preliminary Designs and Costs for Effluent Pipeline Discharge Locations. <br /> A. In order to identify potential discharge locations for the various alternatives, the <br /> ENGINEER will obtain from the Cape Cod Commission, USGS, and the Town of Mashpee the <br /> most recent and accurate maps that have been prepared indicating the limits of the groundwater <br /> recharge area that is estimated to discharge into each of the subembayments of Popponesset <br /> and Waquoit Bays, as well as the most recent available mapping of recharge zones to public <br /> water supply wells. Working with the Town Planner, the ENGINEER has identified potential tracts <br /> of land that could serve as the location of large volume infiltration systems that are outside of any <br /> such recharge area. The potential hydrogeologic impacts of discharge at these sites have been <br /> preliminarily analyzed by USGS using its particle tracking model. The Town Planner will provide <br /> data on the size of the identified properties, the current zoning and land use, the current owner, <br /> and assessed valuation. The ENGINEER shall determine the depth to groundwater and the <br /> anticipated soil characteristics at each location. The ENGINEER shall visually observe each <br /> potential site to the extent feasible to verify current conditions and assess the ease of access <br /> from a public way. If no feasible location is identified outside of the bay or well recharge areas, <br /> the ENGINEER shall identify other locations or discharge methods that will minimize the probable <br /> direct impact on the subembayments under current wastewater treatment practices and be <br /> consistent with achieving the nitrogen targets for each subembayment in the context of each of <br /> the proposed scenario and the Recommended Plan. <br /> B. The ENGINEER shall recommend possible locations for large volume community <br /> infiltration systems. These locations will be presented to the COMMISSION and concurrence <br /> obtained before proceeding with the next task. For each location the feasibility of open sand filters <br /> vs. subsurface disposal through well injection technology or leaching facilities will be assessed, <br /> and an assumed design assigned to the specific location. The discharge capacities of the <br /> recommended locations must be sufficient to handle projected flows under each of the scenarios. <br /> A preliminary design shall be prepared for each discharge area, sufficient to determine its <br /> capacity and approximate cost. The COMMISSION will be responsible for contacting owners of <br /> the property and determining availability and cost of any land required. <br /> C. A report shall be prepared describing the results of the previous tasks VII.A and VII.B and <br /> indicating the ENGINEER's recommendations regarding discharge sites and facilities. Ten (10) <br /> copies of the draft report and two (2) copies of any oversize plans shall be submitted to the <br /> COMMISSION for review and further distribution to other key parties. Should no suitable site be <br /> determined to be available outside of bay and well recharge areas, the report shall include the <br /> ENGINEER's recommendations for alternative approaches to effluent discharge under each <br /> nitrogen management scenario-under consideration atthe time of the report.- <br /> D. After sufficient time for review, the contents of the above report shall be presented at a <br /> public meeting of the COMMISSION. <br /> E. Based on review and comment on the report by the COMMISSION and other parties, and <br /> the input received at the public meeting, one or more of the recommended discharge areas or <br />