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• TABLE # 4. CARBON JUNCTION MINE <br />GW WELL SUMMARY 1997 WATER YEAR <br />WELL 17-B (UPPER) <br />SEMI-ANNUAL <br />SAMPLING FREQUENCY <br />• <br />Water Year Quarter 4Q96 1 Q97 3Q97 Max Min Mean <br />Sample Date 10/15/96 1/23/97 7/22/97 <br /> <br />Arsenic IAsI <0.001 <0.001 <0.001 0 0 n/a <br />Calcium ICa) 13.2 9.2 14.3 14.3 9.2 12.2 <br />Bicarbonate ICaC03) 320 176 298 320 176 265 <br />Cadmium ICdI <0.005 <0.005 <0.002 0 0 n/a <br />Chloride ICII 16 < 10 < 10 16 16 16 <br />Cabonate (CaC031 0 0 0 0 0 0 <br />Depth to Water 8 1 12 12 1 7 <br />Conductivity IECI 608 431 472 608 431 504 <br />Iron IFeI <0.2 0.4 0.5 0.5 0.4 0.5 <br />Mercury IHg) <0.001 <0.001 <0.001 0 0 n/a <br />Magnesium IMgI 8 5.7 9 9 5.7 7.6 <br />Manganese IMnI <0.2 <0.2 <0.2 0 0 n!a <br />Sodium INaI 122 62.9 111 122 62.9 98.6 <br />Ammonia as Nitrogen INH31 0.42 0.28 0.31 0.42 0.28 0.34 <br />Nitrite IN02) <0.05 <0.05 NT 0 0 n/a <br />Nitrate (N031 <0.05 <0.05 NT 0 0 n/a <br />Nitrate/Nitrite IN03, N02) <0.04 <0.04 <0.04 0 0 n/a <br />pH 6.6 7.01 6.8 7.01 6.6 6.8 <br />Phosphate IP04) <0.1 <0.1 <0.1 0 0 n!a <br />Selenium ISeI <0.001 <0.001 <0.001 0 0 n/a <br />Sulfate (S04) <10 12 10 12 10 11 <br />Total Dissolved Solids ITDSI 415 255 470 470 255 380 <br />Temperature 14 7 16.2 16.2 7 12 <br />Zinc IZnI <0.25 <0.25 <0.25 0 0 n/a <br />• <br />