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MEMORANDUM <br /> TO: Board Members <br /> FROM: County Manager <br /> DATE: June 21 , 1983 <br /> RE: Efland Estates Problem <br /> -Work had progressed through May to arrange financing for Efland Estates <br /> sewer relief when it was learned that the package treatment plant of the Efland <br /> Elementary School was malfunctioning to the point it would need to be replaced. <br /> Since both the subdivision and school are contiguous to one another it seemed <br /> beneficial to try to solve the problems through a joint project. The following <br /> outlines how this might be accomplished in so far as cost of on-site treatment. <br /> Size and Location <br /> Combined flow from the subdivision and school would be 15,200 to 15,700 <br /> gallons per day (GPD) which is within the County's discharge permit of 20,000 GPD. <br /> Two-thirds of this (10,700 GPD) is attributable to the 26 houses. The School <br /> would account for one third or 4,500 to 5,000 GPD. <br /> A plant to treat the combined flow would need to be located to the north <br /> of both sites on one to two acres of land that would hopefully be donated by the <br /> School system. Gravity would enable waste water to flow to the plant without <br /> pumping. <br /> Cost <br /> Estimated expenditure would vary as to the scope of the project. Shown <br /> below are five configurations. <br /> Repair Existing 26 Houses <br /> Plant Plus 16 26 Houses, <br /> for School 26 Houses Undeveloped 16 Lots, 26 Houses , <br /> Alone Alone Lots Plus School Plus School <br /> On Site Collection 88,120 93,120 93,120 88,120 <br /> System <br /> Outfall to the 0 0 0 15,000 15,000 <br /> Treatment Plant <br /> Treatment Plant 35,500 48,000 65,000 51 ,000 <br /> Land 0 8,000 8,000 8,000 8,000 <br /> Engineering 13,500 13,500 13,500 13,500 <br /> Contingencies 10,000 10,000 10,000 10,000 <br />