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<br />YPRUS TW ENTYMILE COAL COMPANY: FOmEL CREEK MINE <br />998 ANNUAL HYDROLOGIC REPORT <br />SUMMARY OF WATER QUALITY DATA <br />i <br />summery atweter quality dete.brw <br /> Average Std. Maximum Minimum Uoits Count Begin End <br />' I PHYSICAL PROPERTIES TEMPERATURE FIELD 9.469 3.6 19.000 4.000 DEGREES C 217 07/79 09N8 <br />2 CONDUCCIVI7-Y FIELD 1400.909 444.9 2330.000 340.000 UMNOS/CM 219 07!79 09N8 <br />7 LAB 1674.553 258.9 2100.000 1230.000 UMHOS/CM 47 04/87 08N8 <br />4 PH FIELD 7.479 0.4 8.500 6.190 PH 211 0789 09998 <br />ii 5 LAB 7.850 0.2 8.200 7.600 PH 8 07/86 08/98 <br />6 ALKALINITY TOTAL 426.520 663 744.000 222.000 M11G/L 50 07/86 08/98 <br />7 ACIDITY AS CACO3 9300 13.7 19.000 -0.400 MC/L 2 05/81 11/81 <br />8 HARDNESS TOTAL 548.503 149.7 1070.000 32130 MC/L 78 03(19 08/98 <br />I 9 AS CACO3 698.000 0.0 698.000 698.000 MC/L 1 11/96 11/96 <br />110 SOLIDS DISSOLVED 1099.034 247.4 1920.000 728.000 MC/L 89 03/79 08/98 <br />11 SUSPENDED 28.000 0.0 28.000 28.000 D1C/L 1 06/91 06N1 <br />12 CATfONS CALCIUM DISSOLVED 127.764 35.6 226.000 4.000 MG/L 90 03/79 08N8 <br />13 MAGNESIUM DISSOLVED 57319 19.5 156.000 0.650 MG/L 89 03/19 08198 <br />14 SODIUM DISSOLVED 167.022 46.8 318.000 40.000 MC/L 89 OM9 08N8 <br />IS POTASSIUM DISSOLVED 5.062 2.5 10.000 1.720 MG/L 16 03!79 04/83 <br />116 SAR NOT APPLICABLE 3.263 1.2 10.516 OS64 UNDEFINED 85 Oll19 08N8 <br />17 ANIONS BICARBONATE AS HCO3 479.682 103.6 892.800 174.000 I11G/L 89 05/79 08/98 <br />18 CARBONATE AS CO3 4.729 103 33.600 -2.000 I11G/L 34 05(79 08/98 <br />19 HYDRO%IDE AS OH -2.000 0.0 -2.000 -2.000 MG/L 16 12f94 08/98 <br />120 CHLORIDE NOT APPLICABLE 14.418 4.2 23.000 3.000 MG/L 33 08(79 01/87 <br />121 SULFATE NOT APPLICABLE 487.348 152.4 1000.000 253.000 MC/L 92 03(19 08198 <br />! 22 PRIMARY ~ ARSENIC DISSOLVED -0.826 2.2 2.000 -5.000 UG/L 23 05/81 04/89 <br />j 23 BARIUM DISSOLVED 84.545 769.3 800.000 -300.000 UG/L Il 04/19 11/81 <br />24 CADMMN DISSOLVED -2.083 8.8 36.000 -20.000 UG/L 69 OS81 08N8 <br />25 TOTAL RECOV 0.200 0.0 0.200 0.200 UC/L I 06N7 06x91 <br />26 LEAD DISSOLVED -32500 663 200.000 -200.000 UG/L 52 05181 08N8 <br />27 MERCURY DISSOLVED -0.087 0.9 7.000 -1.000 UC/L 68 OSBI 08N8 <br />j 28 TOTAL RECOV -0.100 0.0 -0.100 -0.100 UC/L 1 06N1 06N1 <br />129 SELEN[Uht DISSOLVED -0.826 2.9 15.000 -5.000 UG/L 69 OSB] 08/98 <br />30 TOTAL RECOV -1.000 0.0 -1.000 -L000 UG/L 1 06N1 06N1 <br />31 SILVER DISSOLVED -36.667 5.8 -30.000 -00.000 UG/L 3 11/80 11/81 <br />32 TOTAL RECOV -Ob00 0.0 -0.500 -0500 UG/L 1 06N1 06N1 <br />' 33 SECONDARY COPPER DISSOLVED 4375 42.4 80.000 -30.000 UG/L 16 03!19 0483 <br />134 ZINC DISSOLVED 34.829 34.3 105.000 -10.000 UG/L 35 03/79 04/89 <br />135 TOTAL RECOV 100.000 0.0 100.000 100.000 UC/L 1 06/91 06N1 <br />76 IRON DISSOLVED 369393 ]608.6 15000.000 -60.000 UG/L 89 03!19 OBNS <br />~ 37 TOTAL RECOV 290.000 0.0 290.000 290.000 UC/L 1 06N1 06N1 <br />3g MANGANESE DISSOLVED 151.046 165.8 640.000 -30.000 UG/L 87 03/79 08/98 <br />At C[ IO/11 C Sl <br />