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• <br />Table C-18 <br />Deep Creek Lower -Water Quality and Field Paremeters <br /> Baseline Sample Dates <br />Field Parameters Unib Minimum Maximum Mean 6/3/98 6/23/98 7/13/98 8/28/98 9/29/98 <br />Flow ds 2.5 1.0 0.42 0.14 0.06 <br />Conductivity (Field) umh05/Cm 120 380 246 120 230 240 380 340 <br />pH (Fieltl) SU 8.1 8 8 8.5 8.1 B 5 8.6 8.6 8 4 <br />Temperature °C 0.1 i6 4 9.5 11.7 15 2 12.4 11.6 8 <br />Laboratory Parameters Unlts <br />Alkalinity, total mg/L 61 183 126 72 130 <br />Aluminum, dissolved mg/L 0 00 0.03 0 02 < 0.03 0.03 <br />Anions mep/L 1.8 3.2 2.5 1.8 3.2 <br />Arsen¢, total recoverable mg/L 0.000 0.000 0 000 < 0.001 < 0.001 <br />Bicarbonate mglL 65 173 132 72 130 <br />Cadmium. dissolved mg/L 0.000 0.000 0.000 < 0003 < 0.003 <br />Calcium, dissolvetl mg/L 18 6 46.8 31.9 18.6 26 2 <br />Carbonate mg/L 0 12 2 < 2 < 2 <br />Cation -Anion Balance % -6.7 -2 9 <.B -2.9 -6.7 <br />Cations meq/L 17 2.8 2.3 1.7 2.8 <br />Chloride mg/L 0 2 1 < 1 < 1 <br />Contluclivity (Leb) umlws/cm 162 270 276 162 270 <br />Copper, dissolvetl mg/L 0.00 0.00 0.00 < 0.01 < 0 01 <br />Fluoride mg/L 0.1 0.1 O1 01 <br />Hardness mg/L 59 156 110 59 90 <br />Hydroxide mg/L 0 0 0 < 2 < 2 <br />Iron. tlissoNed mg/L 0.03 043 0.23 0.03 0.43 <br />Iron. total mg/L 0 11 5.63 1 66 5.83 2.07 <br />Lead. dissolved mg/L 0 00 0.00 D 00 < 0 04 < 0 O4 <br />Magnesium, dissolved mg/L 3.1 7.6 5.4 3 1 4.7 <br />Manganese, dissolved mg/L 0.000 0 009 0.005 < 0 005 0.009 <br />Manganese. total mgd_ 0.000 016 0.044 0.138 0.055 <br />Mercury, total recoverable mglL 0.0000 0.0000 0.0000 < 0.0002 < 0.0002 <br />Molybdenum, tlissdved mg/L 0.00 0.00 0.00 < 0.01 c 0.01 <br />Ndrala (as N), tlissoNed mg/L 0.00 0.09 0.02 < 0 02 <br />Nitrate/Nitrite (as N) mg/L 0.00 0.10 0 03 c 0 02 <br />Ndnte (as N). dissolved mg/L 0 00 0.01 0 00 0.01 <br />pH (Leb) SU 6 5 6.2 7 4 6 5 8 2 <br />Phosphate mg/L 0 08 0.09 0.09 0 09 0 08 <br />Phosphate (Ortho), dissolved mg/L 0.000 0.032 0 007 0.032 0 029 <br />Potassium, dissolved mg/L 0.8 1.1 1 0 0 8 1.1 <br />Selenium, total recoverable mg/L 0.000 0.000 0 000 < 0.007 c 0.04 <br />Sodium Absorblion Ratio 0.59 1.32 0.94 0.7 1.02 <br />Sodium, dissolved mg/L 12.3 31.4 21.6 12.3 21.g <br />Sulfate mg/L 0 30 19 20 30 <br />Total Dissolvetl Solids (Lab) mg/L 90 250 165 100 160 <br />Total Suspentletl Solids mg/L 0 448 93 194 76 <br />Zinc. dissolved mg/L 0 0 0 < 0.01 c 0.01 <br />surface9e xls West Elk Mine <br />5/12/99 1998 Annual Hydrology Report Wright Water Engineers <br />