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A <br /> H HAZEN AN D SAWYER P.c. <br /> CONSULTING ENGINEERS <br /> II <br /> February 18, 1986 <br /> Mr. Kenneth R. Thompson _ <br /> Orange County Manager <br /> 106 East Margaret Lane <br /> Hillsborough, North Carolina 27278 <br /> Re: Efland-Cheeks Township <br /> Sanitary Sewer Facilities <br /> H&S Job. No. 3600 <br /> Dear Mr. Thompson: <br /> Based on a recent field survey and a visual observation of <br /> the existing Hillsborough sewer system directly affected by the <br /> interconnection with the Efland system, it is apparent the <br /> section of line immediately north of King Street to the manhole <br /> south of Eno Street is currently overloaded and could not take <br /> any additional flow from the proposed Efland sewer system. <br /> Hazen and Sawyer evaluated the various options available for <br /> relieving the overload condition on this section of line and also <br /> allowing for the additional flow from the Efland system. The <br /> options and estimated costs (construction plus engineering) for <br /> those options are as follows: <br /> OPTION, NO. 1 $85, 000 <br /> This option leaves the existing design of the proposed <br /> Efland system unchanged, and provides for paralleling the <br /> existing Hillsborough sewer system immediately north of King <br /> Street to the manhole south of Eno Street. The County should be <br /> aware that there still remains the potential of having to upgrade <br /> the upper section of the existing Hillsborough system between <br /> Lakeshore Drive and King Street at an estimated cost of $95,000. <br /> The time frame for this upgrade is variable, depending on the <br /> growth in the Efland area and the Town of Hillsborough. <br /> OPTION, NO. 2 $ 65,000 <br /> This option extends the 8-inch force main down West Hill <br /> Avenue south of the railroad tracks, east to the 21-inch <br /> interceptorlin the existing Hillsborough system. This option <br /> eliminates the sewer in Orange Heights at an estimated reduction <br /> of $55, 500. <br /> 4300 GLENWOOD AVENUE•P.O.BOX 30428•RALEIGH,NORTH CAROLINA 27622•(919)782-8333 <br /> OFFICES IN NEW YORK RALEIGH.AND HOLLYWOOD,FLORIDA <br />