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<br />PRUS TWENTYMILE COAL COMPANY: FOIDEL CREEK MiIYE <br />~8 ANNUAL HYDROLOGIC REPORT <br />IMMARY OF WATER QUALITY DATA <br /> <br />summery of water quality deta.brw <br /> Average Std. Maximum Mlulmum Uuib Count Begfa End <br />I PHYSICAL PROPERTIES TEMPERATURE FIELD 9.600 1.6 11300 6.700 DEGREES C 8 Il/95 09/98 <br />2 CONDUCITYiiY FIELD 697.500 30.1 940.000 840.000 UMHOS/Cbi 8 IINS 09N8 <br />3 LAB 842.750 24.6 881.000 803.000 UAfIiOS/CM 8 IINS 09N8 <br />/ PH FIELD 9.229 03 9.510 8.860 PH 8 11/95 09N8 <br />5 LAB 9.225 0.1 9300 9.100 PH 4 05/97 09/98 <br />6 ALKALINITY TOTAL 341500 24.1 367.000 286.000 MG/L 8 11N5 09N8 <br />7 HARDNESS TOTAL 3375 0.9 5.000 2.000 F1G/L 8 IINS 09N8 <br />8 SOLIDS DISSOLVED 491.250 31.8 540.000 450.000 MG/L 8 11/95 09N8 <br />9 CAT1ON5 CALCIUM DISSOLVED 1.013 0.2 1.400 0.800 MG/L 8 11/95 09/98 <br />10 MAGNESIUM DISSOLVED 0.200 0.2 0.400 -0.200 MG/L 8 11N5 09/98 <br />fI SODIUM DISSOLVED 199.875 9.7 216.000 184.000 MG/L 8 11N5 09/98 <br />12 SAR NOT APPLICABLE 48.538 7.0 62.600 41.900 UNDEFINED 8 IINS 09/98 <br />13 ANIONS BICARBONATE AS HCO3 320.625 30.7 370.000 261.000 MG/L B 1IN5 09N8 <br />14 CARBONATE AS CO3 46.875 5.6 57.000 38.000 MG/L 8 IINS 09N8 <br />IS HYDROXIDE AS OH -2.000 0.0 -2.000 -2.000 MG/L 8 I1N5 09/98 <br />16 SULFATE NOT APPLICABLE 74375 36.0 105.000 -10.000 MG/L 8 11/95 09/98 <br />17 PRIMARY CADMIUM DISSOLVED -0.225 1.7 3.200 -3.000 UG/L 8 11N5 09/98 <br />IB LEAD DISSOLVED -I 1.250 50.0 110.000 40.000 UG/L 8 I1N5 09N8 <br />19 MERCURY DISSOLVED -0.200 0.0 -0.200 -0.200 UG/L 8 I1N5 09N8 <br />20 SELENIUM DISSOLVED -1.000 0.0 -1.000 -1.000 UG/L B lINS 09/98 <br />2I SECONDARY IRON DISSOLVED 63.750 543 130.000 •10.000 UG/L 8 11/95 09N8 <br />22 MANGANESE DISSOLVED -2.125 53 7.000 -5.000 UG/L B IINS 09N8 <br />2J TRACE METALS MOLYBDENUM DISSOLVED -10.000 0.0 -10.000 -10.000 UG/L 8 11/95 09/98 <br />24 NUTRIENTS NCIROGEN NITRATE 0.006 0.0 0.040 -0.020 MG/L 8 I1N5 09/98 <br />25 Nil-RIFE -0.010 0.0 -0.010 -0.010 MG/L 8 Il/95 09N8 <br />26 NO3+NO2 0.006 0.0 0.040 -0.020 MG/L 8 I1N5 09N8 <br />27 PHOSPHATE ORTHO-0155 0.012 0.0 0.027 -0.005 MG/L 8 11/95 09N8 <br />o•, <br />