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• <br />TABLE: 25 <br />COLORADO YAMPA COAL COMPANY: MINE 1, 2 AND ECKMAN PARK MINE <br />1998 ANNUAL HYDROLOGY REPORT <br />WATER QUALITY MONITORING DATA <br />SITE: 1002 (FISH BELOW INACTIVE MINE) <br />DATUM = <br />Fleld MAR APR (3) 4) JUN (~) JUL AUG (2) (3) SEP (3) <br />Parameters 22-Mar-99 02-Apr-99 19-Apr-99 24-May-99 01-Jun-99 21-Jun-99 06-Jul-99 03-Au -99 09-Au -99 16-Aug-99 07-Sep-99 20-Sep-99 <br />Water Level d.07 -2.86 -1.72 -3.51 -2.99 -1.22 -1.05 -1.12 -1.08 -1.07 -0.79 -1.19 <br />Flow (ds) 43.82 28.58 14.22 36.77 30.21 7.92 5.77 6.66 6.16 6.03 2.50 7.54 <br />TEMPERATURE FIELD DEGREES C 1.5 6.9 6.1 12.1 9.1 16.6 18.8 18.9 17.9 17 14.3 12.1 <br />CONDUCTIVITY FIELD UMHOS/CM 1010 970 640 302 410 1410 2460 1300 900 880 1210 1310 <br />PH FIELD PH 8.36 7.61 6.26 8.34 6.16 8.33 8.35 6.36 8.37 8.52 8.54 6.54 <br />Lab <br />Parameters <br />CONDUCTIVITY LAB UMHOS/CM 877 634 317 394 1530 2420 1220 764 1200 1710 <br />PH LAB PH 8 8.2 7.7 7.6 8.4 8.4 8.4 8.4 8.5 8.3 <br />SOLIDS DISSOLVED MG/L 650 450 200 250 1090 1780 660 520 780 1230 <br />SOLIDS SUSPENDED MG/L 114 126 486 270 34 -5 -5 16 8.5 38 <br />ALKALINITY TOTAL MG/L 198 362 259 370 <br />HARDNESS TOTAL MG/L 325 488 366 442 <br />CALCIUM DISSOLVED MG/L 69.5 99.1 69.4 82.3 <br />MAGNESIUM DISSOLVED MG/L 38.9 58.5 46.6 57.6 <br />SODIUM DISSOLVED MG/L 35.8 167 31.4 251 <br />SAR NOT APPLICABLE UNDEFINED 0.87 3.33 0.72 5.226 <br />SULFATE NOT APPLICABLE MG/L 170 510 170 590 <br />BICARBONATE AS HC03 MG/L 242 418 298 447 <br />CARBONATE AS C03 MG/L -2 11 9 2 <br />HYDROXIDE AS OH MG/L -2 -2 -2 -2 <br />CADMIUM TOTAL RECOV UG/L -0.5 -0.5 -0.5 1.1 <br />MERCURY TOTAL RECOV UG/L -0.2 -0.2 -0.2 -0.2 <br />SELENIUM TOTAL RECOV UG/L 2 1 -1 -1 <br />SILVER TOTAL RECOV UG/L -0.5 -0.5 -0.5 -0.5 <br />ZINC TOTAL RECOV UG/L 20 -10 -10 10 <br />IRON TOTAL RECOV UG/L 6740 4240 16500 7620 1050 180 190 410 300 530 <br />MANGANESE TOTAL RECOV UG/L 95 33 20 42 <br />MOLYBDENUM TOTAL RECOV UG/L -10 -10 -10 -10 <br />PHOSPHATE NOT APPLICABLE MG/L -0.03 0.06 -0.03 0.04 <br />NITROGEN AMMIUM-TOTAL MG/L -0.01 -0.01 -0.01 <br />NITROGEN AMMIA-FREE MG/L 0.05 -0.05 -0.05 0.14 -0.05 0.07 -0.05 -0.05 -0.05 -0.05 <br />NITROGEN NITRATE MG/L 0.06 0.14 -0.02 -0.02 <br />NITROGEN NITRITE MG/L -0.01 0.03 -0.01 -0.01 <br />NITROGEN N03+N02 MG/L 0.08 0.17 -0.02 -0.02 <br />PHOSPHATE ORTHO-DISS MG/L -0.005 0.022 -0.005 0.013 <br />ALUMINUM DISSOLVED MG/L -30 -30 60 -30 -30 -30 <br />gas ws <br />