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• <br />Table 2 (Con't) , <br />Suiwna ry of Surface Water Monitoring Sites <br />for the Nucla Mine <br />Site Name Drainage <br />(Computer No.) (See Exhibit 1) Type of Flan Measurement and Remarks <br /> <br />SW-N7 Upper West Return Flow height measured in CMP; flow determined using Manning's <br />(SA0007) Ditch equation (low flow measured with bucket and stop watch) <br />NPDES 001 Mid-Lower West Continuous recorder with sharp-crested 90° V -notch weir <br />(DA0001) Return Ditch <br /> <br />NPDES 002 Tributary to Type of flow measurement not determined; no discharge <br />(DA0002) Tuttle Draw observed since 1980 <br />NPDES 003 Tributary to Type of flow measurement not determined; no discharge <br />(DA0003) Tuttle Draw observed since 1980 <br />NPDES 004 Tributary to Type of flan measurement not determined; no discharge <br />(DA0004) Tuttle Draw observed since 1980 <br />NPDES 005 Tributary to Type of flow measurement not determined; no discharge <br />(DA0005) Tuttle Draw observed since 1980 <br />