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• <br />ROARING FORK DOWNSTREAM <br />WATER QUALITY DATA <br />Pre-Permit <br />u <br /> 11-02-83 04-25-84 05-31-84 09-18-84 Mean <br />Ammonia 0.000 0.210 0.200 0.120 <br />Sulfate 913 86.3 36 101 101 <br />Cadmium 0.0000 0.0001 0.0000 0.0000 0.0000 <br />Chloride 4.8 4.0 1.6 3.2 9.44 <br />Copper 0.000 0.005 0.001 0.013 0.000 <br />Lead 0.000 0.000 0.000 0.000 0.000 <br />Iron 0.000 0.060 0.002 0.120 0.110 <br />Manganese 0.003 0.004 0.018 0.009 0.010 <br />Selenium 0.007 0.000 0.000 0.000 0.000 <br />Silver 0.0000 0.0000 0.0000 0.0002 <br />Zinc 0.002 0.027 0.009 0.009 0.010 <br />Calcium 74.4 32.8 72.53 <br />Mangesium 14.4 12.8 7.23 14.4 15.22 <br />Potassium 2.00 2.64 1.11 1.61 1.36 <br />Sodium 6.49 4.33 2.17 6.97 5.58 <br />Bicarbonate 196 138 90.6 156 116.8 <br />Carbonate 0.000 0.000 0.000 0.000 1.920 <br />Total Dissolved Solids 334 270 156 384 361.6 <br />Total Suspended Solids 3.0 47.6 72 10.8 4.3 <br />All parameters in Mg/L <br /> <br />