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Mr. Pat Klaers <br />Page Two <br />January 23, 2004 <br /> <br />· Identify areas within the Urban Service Area that have had preliminary plat <br /> and/or concept plans prepared for them. Project future sewage flow based <br /> upon these preliminary plats and/or concept plans relative to land use. <br />· For areas with no development plans within the Urban Service Area, project <br /> future sewage flow based on land use and make allowances for wetlands, <br /> parks, road rights-of-way, etc. <br /> <br />Based on the above-described scope of services and the estimated level of effort <br />necessary, the approximate engineering cost would be $27,000. <br /> <br />Briefly Analyze the Pros and Cons of a Second WWTP <br /> <br />A. Determine minimum cost effective treatment size for a second WWTP. <br /> <br />Based on the minimum treatment size, project an approximate area of the City, <br />generally in the gravel mining area, that could be serviced by a second WWTP. <br /> <br />C. Discuss treatment process options and methods of discharge of effluent. <br /> <br />D. Estimate "ballpark" construction costs and overhead to determine project cost. <br /> <br />E. Discuss pros and cons of operation and maintenance costs. <br /> <br />· Discuss equipment that would need to be redundant at both WWTPs. <br />· Discuss equipment that could be utilized from the current WWTP in <br /> operation of a second plant. <br />· Discuss manpower issues relative to operating two WWTPs. <br /> <br />the <br /> <br />Meet with MPCA and identify any issues relative to acquiring an NPDES discharge <br />permit for a second WWTP. <br /> <br />Based on the above-described scope of services and an estimated level of effort, the <br />approximate engineering fee would be $9,500. <br /> <br />Internal WWTP Operations Issues <br /> <br />Analyze treatment options for phosphorus removal requirements and recommend <br />treatment type along with estimated capital costs. <br /> <br />Bo <br /> <br />Analyze issue of leak at tricking filter tower no. 1. Recommend permanent option <br />for repair and determine when the repair should be scheduled. <br /> <br />Based on current WWTP average daily flow and projected growth of influent, <br />estimate when additional equipment will need to be placed into existing structures <br />at the WWTP to increase capacity to 2.1 million gallons per day. Project estimated <br />cost for budgeting purposes based on equipment type and timing for installation. <br /> <br />Ltr-011204-Klaers.doc <br /> <br />Howard R, Green Company <br /> CONSULTING ENGINEERS <br /> <br /> <br />