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Table 2 <br />Summary of Surface Water Monitoring Sites <br />for Nucla and Nucla East Mines, <br />Montrose County, Colorado <br />Site Name Drainage <br />Mine (Computer No.) (See Exhibit 7-8) Type of Flow Measurement and Remarks <br /> <br />Nucla SW-N1 Upper Tuttle Draw Flow = cross section x velocity* <br />(SA0001) <br />SW-N2 Lower West Return Monitoring discontinued 11/80 <br />(SA0002) Ditch <br />°' SW-N3 Lower Tuttle Draw Flow = cross section x velocity <br />(SA0003) <br />SW-N4 Lower East Return Monitoring discor~ti~~ued 11;80 <br />(SA0004) Ditch <br />SW-N5 Mid-Lower West Same site as NPDES 001(DA0001) <br />(SA0005) Return Ditch <br />SW-N6 Mid West Return Flow cross section x velocity or portable cut-throat flume <br />(SA0006) Ditch <br />• • • <br />