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• • • <br />Table C-5 <br />Lower Sylvester Gulch -Water Quality and Field Parameters <br /> Sample Oates <br />Field Parameters Units 6/3l9B 6/24/96 9/23/98 <br />Flow c/s 0.07 <br />Condudivily (Fieltl) umhos/cm 640 620 700 <br />pH (Field) SU 6 5 6.6 9.7 <br />Temperature °C 7 9 9.6 10.2 <br />Laboratory Parameters Units <br />Alkalinity, total mg/L 323 <br />Aluminum, dissolvetl mg/L 0 03 <br />Anions meq/L B <br />Arsenic. total recoverable mglL 0.001 <br />BiWrDOnala mg/L 315 <br />Cadmium. dissolved mg/L < 0.003 <br />Calcium, dissolved mg/L 41 <br />Carbonate mg/L B <br />Cation -Anion Balance % -3.2 <br />Cations meq/L 7 5 <br />Chlonde mg/L 4 <br />Conductivity (Lab) umhos/cm 597 <br />DODPer, dissolved mg/L < 0.01 <br />Fluontla mglL 0.2 <br />Hardness mg/L 179 <br />Hydroxide mg/L < 2 <br />Iron, tli55olved mg/L 0.05 <br />Iron, total mg/L 7.35 3 46 0.17 <br />Lead, dissolved mg/L c 004 <br />Magnesium, tlisSONed mg/L 18.7 <br />Manganese, tlissolvetl mg/L 0.007 <br />Manganese, total mg/L 0.051 0.076 0.005 <br />Mercury, total recoverable mg/L < 0 0002 <br />Molybdenum. tlissaNed mg/L c 0.01 <br />Ndrate (as N), dissolved mg/L 0.03 <br />Nitrate/Nitrile (as N) mg/L 0.05 <br />Nitnta (as N), dissolved mg/L 0.02 <br />pH (Lab) SU B.3 <br />Phosphate mg/L 0.09 <br />Phosphate (Oriho), dissolvetl mglL 0.031 <br />Potassium, dissolved mg/L 2.2 <br />Selenium, total recoverable mglL < 0.04 <br />Sodium ADsorbtion Raho 2.69 <br />Sodium. dissolved mg/L B7 8 <br />Sulfate mg/L 70 <br />Total Dissolved Solids (Lab) mg/L 400 400 430 <br />Total Suspended Solitls mg/L 96 120 < 5 <br />Zinc. dissolvetl mg/L < 0.07 <br />sudace9B xls West Elk Mine <br />5/72/99 1998 Annual Hydrology Report Wright Water Engineers <br />