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7 <br /> The essence of the agreed-upon conditions for withdrawal from the Eno River is: <br /> 1. A withdrawal rate of 5 mgd is currently allowable under the Voluntary Eno River Capacity Use Area <br /> (CUA) Water Management Operations Plan. <br /> 2. Withdrawal rates exceeding 5 mgd may only occur when Eno River flows as measured at the USGS Eno <br /> River Gage near Durham (US-501) exceed the annual median flow of 49 cfs, i.e.,flows well above the <br /> low flow conditions of concern in the WMOP. <br /> 3. Withdrawal rates exceeding 5 mgd require a flowby rate downstream of the point of withdrawal <br /> measured at the USGS Eno River Gage Near Durham. <br /> a. The total flowby requirement in the Eno River downstream of the point of withdrawal will be <br /> 90%of flow above 49 cfs when Teer Quarry is above 254' MSL. <br /> b. The total flowby requirement in the Eno River downstream of the point of withdrawal will be <br /> 80%of flow above 49 cfs when Teer Quarry is below 254' MSL. <br /> 4. Withdrawal rates exceeding 5 mgd may only occur when Falls Lake is at or above guide curve (251.5' <br /> MSL). <br /> Figure 1. USGS Stream Gages, Eno River, and Teer Quarry <br /> } �.c iS' ► Base maps <br /> Eno R. at Hillsborough #` ` <br /> s-, <br /> Eno R. Near Durham <br /> +' <br /> Hllsbo'o/gh %* LP <br /> rj <br /> Teer Quarry <br /> us is <br /> A i• Duke Forest US 501 ? + <br /> 7 oyrhom �. <br /> Oivisron �5=� US* <br /> A 16J ! 108B-C-D US 70 <br /> rov o- <br /> i ;.. NC 75i., 4. Durham <br /> 106 <br /> / - <br /> %A f i <br /> US 501 <br /> 0 1 2mi N1ap data OpenStreetM ip contributors, CC-BY-... <br /> The WMOP is largely concerned with low flows in the Eno River as measured at the USGS Eno River Gage at <br /> Hillsborough.The City's withdrawal from the Eno River would only occur during high flow events, withdrawals <br /> from the Eno River would occur only about 12 days per year on average (during 1,038 days of the 32,142 days <br /> 1600 Mist Lake Dr. Durham, NC 27704 919.560.4381 DurhamNC.gov I Follow Us @Cityo©rham©it <br />