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Sampling Sampling <br />Location Date <br />North Thompson <br />Upstream 5/30/84 <br />North Thompson <br /> <br />Downstream 5/30/84 <br />Roaring Fork <br /> <br />Upstream 5/31/84 <br />Roaring Fork <br />Downstream 5/31/84 <br />Middle Thompson <br />Upstream 5/30/84 <br />Middle Thompson <br />Downstream 5/30/84 <br /> MONTHLY SURFACE MATER MEASUREMENTS <br /> SNOMMASS COAL COMPANY <br /> NORTH TNOMPSON CREEK MINES <br /> PH Temperature Conductivity Flow R ate <br />Time (nearest 0.1) (°C) (Umhos @ 25°C) cfs <br />8:50/am 7.5 ~ 3.1 °C 62 n 100 cfs <br />12:30/pm 7.7 ~ 7.3 °C 76 n 100 cfs <br />8:20/am 7.2 5.8 °C 160 -- <br />9:15/am 7.3 5.8 °C 137 -- <br />2:10/pm 7.9 6.0 °C 44 n 80 cfs <br />1:55/pm 7.7 6.3 °C 37 n 80 cfs <br />Creek flows too high to measure. <br />C, <br /> <br />