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• <br />TABLE: 19 <br />CYPRUS YAMPA VALLEY COAL CORPORATION: MINE 1, 2 AND ECKMAN PARK MINE <br />1998 ANNUAL HYDROLOGY REPORT <br />SITE: 8 (FOIDEL BELOW TCC) <br /> <br />DATUM= 6789.95' <br />t?kW:~..::~.::::~::::::::.~:::::.;:~::::::~:::~~:~::..::::~:::.~;:::~.~~:.~.:;::~::~":.:::::~:~~~:~:~;;:: MAR APR (2) MAY JUN JUL AUG (2) 3) (4 SEP 2 <br />Parewefe~rii ~~~~~:~:~~'::~~~~::~~~::`:~:~~~~~::~~:~~:%~~~::~.:~~:::~~~~:~~~~::':~~:::~~:::~~:~: 24-Mar-98 06-A r-98 20-A r-98 20-Ma -98 16•Jun-98 13-Jul-98 03-Au -98 10-Au -98 17-Au -98 25-AU -98 01-Se -96 IS-Se 98 <br />Wattt Level -3.34 -3.51 -2.71 -2.29 -3 06 -2 75 -2.96 -2.51 2.46 -2 98 -3.03 -3.09 <br />Flow cfs 3 95 4 2 3.02 2.39 3.53 3.07 3.39 2.72 2.65 3.42 3.49 3.10 <br />TEMPERATURE FIELD DEGREESC 3.3 3.9 7.0 15.3 13.8 185 16.9 15.6 16.2 15.1 15.0 11,7 <br />CONDUCTIVITY FIELD UMHOS/CM 1840 1280 1700 2560 2830 2160 3080 3090 3230 3130 3220 3040 <br />PH FIELD PH 7.95 806 8.11 7.84 7.93 8.74 7.93 7.80 7.87 7.85 783 7.92 <br /> <br />CONDUCTIVITY LAB UMHOS/CM 1460 2670 2360 3070 <br />PH LAB PH 8.1 7.9 8.1 7.9 <br />SOLIDS DISSOLVED MG/L 1430 2640 3350 3130 <br />SOLIDS SUSPENDED MG/L 24 24 8 16 <br />ALKALINITY TOTAL MG/L 259 313 290 305 <br />HARDNESS TOTAL MG/L 1010 1880 2190 2110 <br />CALCIUM DISSOLVED MG/L 197 337 370 346 <br />MAGNESIUM DISSOLVED MG/L 126 252 308 302 <br />SODIUM DISSOLVED MG/L 479 53.2 735 81.2 <br />SAR NOT APPLICABLE UNDEFINED 066 0.54 0.69 0.77 <br />SULFATE NOT APPLICABLE MG/L BIO 1660 2060 1890 <br />BICARBONATE AS HC03 MG/L 316 381 354 372 <br />CARBONATE AS C03 MG/L -2 -2 -2 <br />HYDROXIDE AS OH MG/L -2 -2 -2 -2 <br />CADMIUM TOTAL RECOV UG/L -0.6 -0.6 -0 S -0.5 <br />MERCURY TOTAL RECOV UG/L -0.2 -0.2 -0.2 -0.2 <br />SELENIUM TOTAL RECOV UG/L 3 2 2 -I <br />SILVER TOTAL RECOV UG/L -0.6 -0.5 -0 S -0 S <br />ZINC TOTAL RECOV UG/L 10 -20 -20 20 <br />IRON TOTAL RECOV UG/L 1050 360 260 330 <br />MANGANESE TOTAL RECOV UG/L 180 210 80 160 <br />MOLYBDENUM TOTAL RECOV UG/L -10 -20 -20 -20 <br />NITROGEN AMMIUM-TOTAL MG/L 006 012 0.2 0.16 <br />NITROGEN AMMIA-FREE MG/L -001 -0.01 -0.01 -0.01 <br />NITROGEN NITRATE MG/L 107 0.47 0.22 0.04 <br />NITROGEN NITRITE MG/L 0.01 -0.01 •001 -001 <br />NITROGEN NOl+N02 MG/L 1.07 0.47 022 004 <br />PHOSPHATE ORTHO-DISS MG/L 0.01 0.018 -0.005 -0.005 <br />