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• <br />Table G-18 <br />Well SOM-C-76 - Water Oualiry and Field Parameters <br /> Baseline Sample Dates <br />Field Parameter Units Minimum Maximum Mean t0A0/9fi 5/30197 7/1/97 7/30/97 8/27/97 8/25/97 <br />Water Sudace Elevation teal 73145 97 7366.08 7368.01 7365.68 7385.95 7365.85 <br />Conductivity (Field) umtge/Gr1 2600 2500 2600 2600 2600 2400 <br />pH (Fieltl) SU 8.3 8 2 8 2 8 4 8.4 6.1 <br />Temperable ° C 9 3 11.5 11.8 11.5 12.4 <br />Total Dissolved Solids (Field) mglL 1300 150 300 1300 1300 1200 <br />Comment <br />Laboratory Parameters <br />Alkalinity, total rrg/L 1480 1660 1550 1630 1540 1560 <br />Ammonia mg/L 0 7.355 0.674 <br />Arsenic, dissolved mg/L 0 0.001 0.0003 0.001 < 0.001 0.001 < 0.001 < 0.001 < 0.001 <br />Birarbonate mglL 1088 1694.4 1600 1450 1860 1550 1830 1530 1510 <br />Cadmium, dissolved mgt 0 0 0 < 0003 < 0003 c 0.006 < 0.003 < 0.008 < 0008 <br />Calcium, dissolved mg4. 1.6 2.2 2 1.8 21 1.8 2.2 2.2 23 <br />Carbonate mgt 38 < 2 < 2 < 2 15 48 <br />Chloride rnyL 1.2 77 4.0 2 3 2 2 2 1 <br />Contludiviry (tab) umtps/on 2300 2350 2325 <br />HaNness rtrgrL 7 42.9 16.1 7 B 7 9 9 9 <br />Hydmxitle rtxyL < 2 < 2 < 2 < 2 < 2 < 2 <br />Imn, dissolved ngrl 0 1 0.13 < 0.01 0.23 < 0.01 1 0.03 0.84 <br />Imn, btal rrx~/L 0 18 5.67 <br />Magnesium, diuoNed mgrL 0.7 0.6 0.76 0 7 0.8 0.7 0 6 O.B 0.8 <br />Manganese, tlissolvetl mgrt 0 0.078 0.005 0.008 0.005 0.006 0.018 < 0.01 c 0.01 <br />Manganese, btal mglL 0 0.145 0.017 <br />Mercury, tlissoNed mgrL 0 0 0 < 0.0002 < 0.0002 < Ol1(102 < 0.0002 < 0.0002 < O.OOD2 <br />Nitrate (as N), dissolved mgrL < 0.02 < 0.02 2.18 < 0.02 c 0.02 0.09 <br />NitrateJNibile (as N) rrxyL 0 2 18 0.22 < 0.02 < 0 02 2.16 < 0.02 < 0.02 0.09 <br />Nitrite (as N). dissolved myL c 0.01 < 0.01 < 0.01 < 0.01 < 0.07 < 0.01 <br />Nitrogen, ammonia mgt 0.58 0.66 0.82 0.57 0.72 0.73 <br />pH (Lab) SU 8.3 9.3 8.5 <br />Phosphate (OAho). Dissolved nglL 0 1.26 0.074 0008 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 <br />Selenium, dissolved rtgrL 0 0 0 < 0.001 < 0.001 < 0.001 < 0.001 < 0.001 < 0.001 <br />Sodium Absorblion Ra0o 46.1 128.fi2 102 111 106 113 104 112 105 <br />Sotlium, dissolved rrgrL 686 75(4 708 686 714 696 702 758 718 <br />Sulfate mg/L 0 27 3.0 < 10 < 70 < 10 < 70 < 10 < 10 <br />ToWI Dissolvetl SdidS (Lab) mgrL 1530 2590 1647 1610 1580 1700 1fi10 1560 1580 <br />Total Suspentled Solids mgt 28 16 22 40 50 8 <br />iurbitliry tLab) NTU 25 24 73.2 14.9 4.4 6.7 <br />lint, dissolved rng/L 0 0 O7 0.002 < 0.01 0 01 < 0.01 < 0 01 < 0.02 < 0.02 <br />Wells97.xls West Elk Mine <br />s/27ree 1997 Annual Hydrology Report Wright Water Engineers <br />