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• • <br /> <br />TABLE SW-7 <br />LORENCITO CANYON MINE <br />QUALITY STANDARDS EXCEEDANCES <br />Parameter Unus Water Chronic CDMG AC-I' BC-1' CC-I' CWC-1' JC-1' LC-1 C-2 C-3 LC-4 PRGTY-I PRGTY-2 <br /> Quality Water Material <br /> Standard Quality Damage <br /> as of Standard as Standard <br /> 8/30/95 of 8/30/95 II/87 <br />pH s.u. 6.5-9.0 <br />Specific umhos/ 700 720 1186 <br />Conductance, cm <br />(field) <br />Dissolved ppm 6.0/<7.0 6.4 4.8 7.3 12.4 .9 .9 7.9 9.5 9.0 <br />Oxygen (sp) <br />Silva, dissolved mg/L 0.00113 0.000178 <0.005' <0.005• <0.005• <0.005• <0.005• <0.005• <0.005' <0.0175• <0.005• <0.005• <0.005• <br />Aluminum, mg/L 5' <br />dissolved <br />Arsenic, mg/L 0.050 0.1 <br />dissolved <br />Boron, dissolved mg/L 0.75 0.5 <br />Cadmium, mg/L 0.00267 0.00087 0.01 <br />dissolved <br />Chloride mg/L 250 <br />Cyanide, free mg/L 0.005 <0.01* <0.01" <0.01• <0.01" <O.OI• <0.01• <0.01• <0.01• <br />Chromium, mg/L 0.05 0.32 0.08 0.30 .06 <br />Trivalent <br />Chromium, mg/L 0.016 O.OII 0.034 0.090 <0.050• 0.020 <br />Hexavalent <br />Chromium, total mg/L 0.05 O.17 .06 <br />recoverable <br />