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Table C11 GVMW-3B Water chemistry summary statistics <br />• <br />• <br />Station Identification: GVMW 3B <br />Location: Grassy Valley <br />Station type: Groundwater <br />Period of record start: April 10, 1997 <br />Period of record end: November 13, 2007 <br />Laboratory Parameters Units Number of analyses Number of <br />non-detected values Maxiumum <br />value Minimum <br />value Average Standard <br />deviation <br />Field Parameters <br />Depth to Water ft 23 0 53.95 31.80 50.77 4.56 <br />Water Temperature C 13 0 12.9 6.0 8.2 2.1 <br />Conductivity pmhos 13 0 405 44 90 96 <br />pH su 13 0 7.5 5.3 6.3 0.6 <br />Dissolved Oxygen mg/I 13 0 10.80 3.80 6.21 1.73 <br />General Parameters <br />Total Dissolved Solids mg/l 5 0 212 24 64 83 <br />Acidity mg/l 7 7 <10 <10 <10 ID <br />Alkalinity as CaCO3 mgA 0 0 NA NA NA NA <br />Ammonia mg/I 7 7 <0.05 <0.05 <0.05 ID <br />Hardness mgA ' 7 0 116 13 30 38 <br />Total Suspended Solids mg/I 7 0 85 10 30 27 <br />Special Parameters <br />Cyanide, Free mgA 7 7 <0.01 <0.01 <0.01 ID <br />WAD Cyanide mg/I 7 7 <0.01 <0.01 <0.01 ID <br />Major Anions <br />Bicarbonate ion (as CaCO3) mgA 7 0 60 15 27 15 <br />Carbonate ion (as CaCO3) mg/l 7 7 <10 <10 <10 ID <br />Chloride, Total mgA 7 6 3.50 <0.5 0.71 1.23 <br />Fluoride, Total mg/l 7 0 2.82 0.18 0.58 0.99 <br />Nitrate, Total mgA 7 0 1.45 0.79 0.99 0.21 <br />Sulfate, Total mgA 7 6 97.20 <10 18.17 34.85 <br />Major Cations <br />Calcium, Total mg/1 7 0 38.40 3.90 9.64 12.71 <br />Magnesium, Total mg/I 7 0 4.88 0.71 1.55 1.51 <br />Potassium, Total mgA 7 l 1.50 <0.5 0.75 0.40 <br />Sodium, Total mg/l 7 0 23.20 3.94 7.36 7.00 <br />Trace Metals <br />Arsenic, Total recoverable mg/l 7 7 <0.005 <0.005 <0.005 ID <br />Cadmium, Dissolved mg/1 7 6 0.001 <0.001 0.001 0.0002 <br />Chromium, Dissolved mg/l 7 4 0.001 <0.001 0.001 0.0003 <br />Copper, Dissolved mgA 7 7 <0.005 <0.005 <0.005 ID <br />Iron, Dissolved mgA 7 7 <0.05 <0.05 <0.05 ID <br />Iron, Total recoverable mg/l 7 0 0.87 0.12 0.39 0.32 <br />Lead, Dissolved mg/l 7 7 <0.00 I <0.001 <0.001 ID <br />Manganese, Dissolved mg/l 7 7 <0.05 <0.05 <0.05 ID <br />Mercury, Total mg/l 7 7 <0.0002 <0.0002 <0.0002 ID <br />Nickel, Dissolved mgA 7 7 <0.005 <0.005 <0.005 ID <br />Selenium, Dissolved mg/I 7 7 <0.005 <0.005 <0.005 <br />Silver, Dissolved mg/l 7 7 <0.005 <0.001 <0.005 ff <br /> <br />Zinc, Dissolved <br />mg/l <br />7 <br />7 <br /><0.05 <br /><0.05 <br /><0.05 ID <br />NA: Not analyzed <br />/D. Insufficient data <br />Nondetects set to % detection limit for calculations