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. -Tabl-e`2 (Con'tt) <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 /> Nucla NPDES 006 Mid West Return Bucket and stopwatch <br /> (DA0006) Ditch <br /> Highwall Spring Mine Pit Bucket and stopwatch, portable cutthroat flume or visual <br /> (BA9001) estimate of the most consistently discharging portion of the <br /> spring/seep <br /> CO <br /> Spoil Spring #1 Tributary to West Bucket and stopwatch, portable cutthroat flume or visual estimate <br /> (BA0001) Return Ditch of the most consistently flowing portion of the spring/seep <br /> Spoil Spring #2 50 Yards West of Bucket and stopwatch, portable cutthroat flume or visual estimate <br /> (BA0002) Spoil Spring #1 of the most consistently flowing portion of the spring/seep <br /> Nucla East SW-N101 Upper Calamity Draw Flow = cross section x velocity <br /> (SBO101) <br /> a SW-N102 Tributary to Flow height measured in CMP; flow determined using <br /> (SBO102) Calamity Draw Manning's equation (low flow measured with bucket <br /> and stopwatch) <br /> CO <br />