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• <br />YPRUS TWENTYMILE COAL COMPANY: FOH)EL CREEK MINE <br />'98 ANNUAL HYDROLOGIC REPORT <br />UMMARY OF WATER QUALffY DATA <br />summa ry of wafer quality dete.brw <br /> Average Std. Me:imam Minimum Unlb Counl Begia End <br />1 PHYSICAL PROPERTIES TEMPERATURE FIELD 10.856 2.7 19.000 8.000 DEGREESC 41 O1Bl 09/98 <br />2 CONDUCI'IVCI'Y FIELD 1888361 783.7 3490.000 350.000 UMHOS/CM 41 01/81 09N8 <br />3 LAB 2329.833 916.0 5740.000 1350.000 UMHOS/CM 24 0587 09N8 <br />4 PH FIELD 7.601 OS 9.470 6.400 PH 41 OIBI 09N8 <br />5 LAB 7.773 0.2 8.000 7.600 PH 4 05/97 09N8 <br />4 ALKALINITY TOTAL 467.040 83.8 761.000 360.000 MG/L 23 IOB6 09N8 <br />7 ACmITY AS CACO3 1330 7.6 6.700 x.000 MG/L 2 OIBI O1B2 <br />8 HARDNESS TOTAL 217308 1339 629.000 28.000 MG/L 39 01/81 09N8 <br />9 SOLmS DISSOLVED 1314.031 7335 4370.000 420.000 MG/L 39 0181 09/98 <br />10 OIL&GREASE VISIBL NOT APPLICABLE 2.000 0.0 2.000 2.000 UNDEFINED 1 0388 0588 <br />i II CATIONS CALCIUM DISSOLVED 45.754 28.9 143.000 8.000 MG/L 39 OIBI 09N8 <br />I2 :MAGNESIUM DJSSOLVED 25.087 133 66.000 2.000 MG/L 39 O1B1 09N8 <br />I3 SODIUM DISSOLVED 456.667 1893 1160.000 101.000 MG/L 39 0181 09N8 <br />i 14 POTASSIUM DISSOLVED 3.088 0.7 4.200 2300 MG/L B 01/81 04/83 <br />i IS SAR NOT APPLICABLE 13.968 4.9 29.496 0.452 UNDEFINED 4( 01/81 09/98 <br />16 ANIONS BICARBONATE AS CACO3 522.000 0.0 522.000 522.000 111G/L 1 09/97 09/97 <br />17 AS HCO3 548.784 121.1 913.200 292.000 MG/L 38 OIBI 09N8 <br />18 CARBONATE AS CO3 8311 17.2 66.000 -2.000 MG/L 16 0481 09/98 <br />19 HYDROXmE AS OH -1.778 0.7 0.000 -2.000 MG/L 9 06/93 09/98 <br />20 CHLORmE NOT APPLICABLE 15.600 10./ 44.000 5.000 MG/L IS O1B1 10/86 <br />21 SULFATE NOT APPLICABLE 702308 454.2 2400.000 35.000 AIC/L 39 0181 09N8 <br />' 22 PRIMARY ARSENIC DISSOLVED -2.083 1.4 -1.000 -5.000 UG/L 12 0181 10/86 <br />j 23 BARIUM DISSOLVED -250.000 70.7 -200.000 -300.000 UG/L 2 OIBI O1B2 <br />24 CADMHJM DISSOLVED -2.897 5.9 3.000 •20.000 UG/L 36 0181 09N8 <br />25 LEAD DISSOLVED -51.034 75.5 90.000 -200.000 UG/L 29 0181 09N8 <br />26 MERCURY DISSOLVED -0.181 0.8 4.000 -2.000 UG/L 36 OIBI 09/98 <br />27 SELENIUM DISSOLVED -1.056 23 11.000 -5.000 UC/L 36 OIBI 09/98 <br />28 SILVER DISSOLVED -35.000 7.1 -30.000 -40.000 UC/L 2 01/81 01/82 <br />29 SECONDARY COPPER DISSOLVED -28.000 4.3 -20.000 -30.000 UG/L 3 O1Bl 0483 <br />jp ZINC DISSOLVED 32.667 19.8 54.000 -10.000 UG/L 12 0181 IO/86 <br />31 IRON DISSOLVED 237.436 463.8 2830.000 fi0.000 UG/L 39 O1B1 09N8 <br />32 MANGANESE DISSOLVED 66.000 99.6 640.000 10.000 UG/L 39 0181 09/98 <br />33 TRACE METALS ALUMINUM DISSOLVED -200.000 393.7 300.000 -400.000 UG/L 5 OIB] 0483 <br />}d BORON DISSOLVED 388.000 84.1 500.000 300.000 UC/L 5 0181 04/83 <br />35 MOLYBDENUM DISSOLVED -52.759 56.5 -10.000 -300.000 UC/L 29 O1B1 09N8 <br />36 NUTRIENTS NIiROCEN AMMIUM-TOTAL 1.070 i.l 2.690 -0.100 MG/L 10 O1B1 O3B8 <br />37 AMMIA-FREE 0.004 0.0 0.011 -0.001 MG/L 10 OIBI O3B6 <br />38 NITRATE 0.255 0.4 1.430 -0.020 MC/L 25 1066 09/98 <br />crrc. no~oa rnnq_7q.e1 <br />