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COTTER COTTER CORPORATION SCHWARTMALDER MINE <br />JULY 19, 1999 RALSTON CREEK SURVEY <br /> <br />STATION: SW-OS METER: Pygmy meter <br />DATE: 7/19/99 <br />LOCATION DEPTH REV/MIN AVG.DEPTH AVE.REV WIDTH AREA RPS VELO CITY FLOW <br />11.3 0.00 0 <br />12 0.30 0 <br />12 0.33 0 0.21 0.00 0.7 0.147 0.00 0.02 0.00 <br />13 0.62 1 <br />13 0.62 2 0.52 0.75 1 0.523 0.01 0.05 0.02 <br />14 0.72 3 <br />14 0.75 2 0.70 2.00 1 0.697 0.03 0.09 0.06 <br />15 0.99 13 <br />15 1.00 31 0.91 12.25 1 0.913 0.20 0.47 0.42 <br />16 0.88 76 <br />16 0.83 71 0.90 47.75 1 0.903 0.80 1.76 1.59 <br />17 0.63 75 <br />17 0.68 75 0.71 74.25 1 0.713 1.24 2.72 1.94 <br />18 0.52 55 <br />18 0.53 54 0.58 64.75 1 0.577 1.08 2.37 1.37 <br />19 0.53 24 <br />19 0.52 24 0.53 39.25 1 0.527 0.65 1.45 0.76 <br />20 0.22 0 <br />20 0.22 0 0.32 12.00 1 0.320 0.20 0.46 0.15 <br />20.9 0.00 0 <br />0 STAFF GAUGE: 0.99 <br /> <br />TOTAL FLOW(CFS): 6.32 <br />Stream Profile SW-OS <br />10 12 14 16 18 20 22 <br />0.00- <br />0.50- <br />1.00- <br />E O <br />1.50 <br />2.00 <br />N 2.50- <br />3.00- <br />•