Agenda - 05-21-1985 - Laserfiche WebLink

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Groundwater. The Towns of Carrboro and Chapel Hill obtain water supplies from an impoundment, University Lake. An alternative source, an impoundment on Cane Creek, is being planned for Orange County. The City of Durham's primary water source is Lake Michie. The recently completed Jordan Reservoir has a significant water supply to be potentially shared with counties and cities in and around the planning area. outside the municipalities, water supplies come from groundwater through wells and springs. The depth,of the water table varies depending upon topography, climate, and properties of the water bearing materials. Since the climate is -fairly uniform and water bearing properties do not differ significantly, topography has the greatest influence on water -table depth. The lowest water yield is found on hills and the highest on slopes, flats or valleys. The reason for the difference in yield is the soil and rock at lower elevations receive recharge from surrounding hills and the rocks tend to be more fractured and porous than rock underlying the hills. The geology of the area is not conducive to high yields of groundwater. Groundwater yields are adequate for domestic use, isolated industries and small communities. operating the proposed sludge land application site is anticipated to have no significant adverse impact to groundwater in the area and monitoring wells will be established to assure early detection of any groundwater contamination problems. C. Existing Waste-eater Facilities 1. The City of *Durham currently operates four.wastewater treatment plants (Eno River.plant, Northside plant, Rock Creek plant and Little Lick plant) in the Neuse River Basin. Each plant discharges into a tributary that flows into the Falls of Neuse Reservoir. Durham has four additional plants (New Hope, Sandy Creek, Third Fork, Hope Valley) that are located in the New Hope Creek drainage basin. A new 10 mgd plant (Farrington Road) has been funded as described in an EPA grant (C370380-01) in the 1978 Negative Declaration (FNSI). This plant is scheduled for completion in 1985. This 1978 negative declaration also describes the expansion of the Little Lick Plant, as well as interceptors .to transport wastewater from the New Hope and Third Fork Creek plants to the Farrington Road facility. Durham's Northside plant was approved for funding in 1984 in an EPA FNSI. This project will result in the upgrade and expansion of the Northside plant. 2. The Rangewood portion of the Durham 201 Facilities Plan was approved by EPA in 1981. This project will require a gravity system to be constructed, as well as, a force main and pump station, to alleviate the need for malfunctioning septic tanks. OWASA operates the existing 8 mgd Mason Farm treatment plant. The plant has been upgraded and expanded through an EPA grant. This is an advanced secondary treatment that serves Chapel Hill and Carrboro. The disposal of sludge remains a problem at the Mason Farm plant. pjjAgA_bAA-already- received 5 percent EPA funding for the acquisition of equipment utilized s-al. -3-