REP39341

• Permit No: C1980007
• IBM Index Class Name: Report
• Doc Date: 12/11/2001
• Doc Name: WEST ELK MINE 1998 ANNUAL HYDROLOGY REPORT-APPENDIX B-SURFACE WATER HYDROGRAPHS
• Permit Index Doc Type: HYDROLOGY REPORT
• Media Type: D
• Archive: No

•
Table C-7
Minnesota Creek Upper -Water Quality and Field Parameters
Baseline Sample Dates
Field Parameters Units Minimum Maximum Mean 6/23/98 712/98 6/28/98 9/29/98
Flaw c/s 41.26 37 37 24 55 4.5
Contluctinty (Field) umhos/cm 130 130 160 320
pH (Fieltl) SU 8.3 6 5 8.4 6 4
Temperature °C 12 0 10.0 19.6 12 8
Laboratory Parameters Units
Alkalinity, total mg/L 62
Aluminum, dissolved mg/L 0.04
Anions mer•/L 2
rsenic, total recoverable mg/L < 0.001
Bicarbonate mg/L 44 333 108 62
Cadmium. tliss0lved mglL < 0 003
Calcium, dissolvetl mg/L 18.5 18.5 18.5 19.7
Carbonate mg/L < 2
Cabon -Anion Balance % -5.3
Cations meq/L 1.8
Chloride mg/L 0 16 5 < 1
Conductivity (Lab) umhos/cm 136 639 319 188
Copper. dissolved mg/L 0.00 0.00 0.00 < 0.01
Fluoride mg/L 0.1
<
Hardness mg/L 60 260 128 75
Hydroxide mg/L < 2
Iron, dissolved mg/L 0 6.65 080 004
Iron, total mg/L 0.04 50.3 669 0.54
Lead, dissolved mglL 0.00 0 00 0,00 < 0.04
Magnesium, tlissoNed mg/L 5.3 6.9 6 1 6.2
Manganese, dissolved mg/L 0.01 0.014 0 012 0.005
Manganese, total mg/L 0.000 0.510 0 083 0 013
Merwry, total recoverable mg/L < 0 0002
Molybdenum, dissolved mg/L 0.00 0.00 0,00 < 0.07
Nbrata (as N). dissolved mg/L 0.1
Nitrate/Nitrite (95 N) mg/L 0.1 0 5 0.2 0.1
Nddle (es N), dissolved mg/L < 0.01
pH (Lab) SU 7 9 8 7
Phosphate mglL 0.03
Phosphate (Onho), dissolved mg/L 0.000 0.195 0.060 0.011
Potassium, dissolved mg/L 0.6
Selenium, total recoverable mg/L < 0.04
Sodium Absorbhon Ratio 0 29 0.40 0 35 0.38
Sodium, dissolved mg/L 6.7 6.7 6 7 7.5
Sulfate mg/L 20 270 65 40
Total Dissolved Solids (Lab) mg/L 90 624 211 110
Total Suspentletl Solids mg/L 0 2088 222 ~ 26
Zinc, tlissolved mg/L 0.00 0.00 0.00 < 0 01
suneca96 xis West Elk Mine
s/12/99 1898 Annual Hydrology Report Wright Water Engineers