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CYPRUS YAMPA VALLEY COAL CORPORATION <br />1997 ANNUAL HYDROLOGIC REPORT <br />SUMMARY OF WATER QUALITY DATA smnmory of w~ler ~udky dala6rw <br /> Avente Sld. Madmum MWmum Unltr Count Bed End <br />1 PHYSICAL PROPERTIES TEMPERATURE FIELD 11.688 6.7 27.000 0.600 DEGREES C 340 03(19 09N7 <br />2 CONDUCTIVI7-Y FIELD 1219.197 720.7 3110.000 230.000 UAIHOS/CM 333 04!79 09N7 <br />3 LAB 1766.174 337.4 7090.000 872.000 UMHOS/CM 46 04/87 09/97 <br /> PH FELD 7.739 0.3 9.000 6.200 PH 340 03179 09N7 <br />S LAB 8.223 0.2 8.400 8.000 PH 4 04/97 09/97 <br />6 ALKALINII'1' TOTAL 233.491 36.3 733.000 174.000 MG/L 37 06/86 09/97 <br />7 ACIDITY AS CAC03 -4.000 0.0 A.000 -4.000 MG/L 2 04/81 10/81 <br />8 HARDNESS TOTAL 686.260 334.3 1782.000 160.000 A1G/L 196 10/80 09/97 <br />9 SOLIDS DISSOLVED 1021.778 610.3 3860.000 101.000 MG/I- 256 03/79 09/97 <br />IO SUSPENDED 186.047 413.6 4560.000 -10.000 MG/1. 233 03/79 09/97 <br />ll SETTLEABLE -0.130 0.1 -0.100 -0.200 ML/I- 2 11/64 06/92 <br />12 OIL&.GREASE VISIBLE NOT APPLICABLE 2.000 0.0 2.000 2.000 UNDEFINED 33 04/83 09!89 <br />13 CATIONS CALCRIB3 DISSOLVED 138.738 68.6 402.000 21.000 MG/L 204 10/80 09/97 <br />14 TOTAL RECOV 199.000 63.6 287.000 123.000 MG/L 7 06/87 09/88 <br />15 MAGNESIUM DISSOLVED 80.379 46.9 242.000 21.000 MG/L 204 10/80 09/97 <br />16 TOTAL RECOV 170.714 45.3 202.000 71.000 MG/L 7 06/87 09/88 <br />17 SODIUM DISSOLVED 33.560 26.2 148.000 13.000 MG/L 204 10/80 09/97 <br />18 TOTAL RECOV 86.286 41.1 148.000 74.000 MG/L 7 06/87 09/88 <br />19 POTASSRJA7 DISSOLVED 3.326 1.2 6.300 1.300 A1G/L 82 10/80 07/63 <br />20 SAR NOT APPLCABLE 0.931 0.4 2.306 0.346 UNDEFINED 787 10/80 09/97 <br />21 ANIONS BICARBONATE AS HC03 260.221 80.7 370.960 91.000 MG/L 204 10/80 09/97 <br />22 CARBONATE AS C03 12.144 17.9 74.400 •2.000 A1G/L 73 03/81 09/97 <br />23 HYDROXIDE AS OH -2.000 0.0 -2.000 •2.000 MG/L 17 03/95 09/97 <br />2J CHLORIDE NOT APPLICABLE 9.012 6.1 37.000 •3.000 MG/1, 132 10/80 06/66 <br />25 SULFATE NOT APPLICABLE 326.901 338.9 1996.000 42.000 A1G/L 203 10/80 09/97 <br />26 PRII1fARY ARSENIC TOTAL -2.300 1.6 -1.000 -3.000 UG/L 14 IO/80 07/86 <br />27 TOTAL RECOV -0.330 1.0 2.000 -1.000 UG/L 20 03/86 01187 <br />28 BARIUM TOTAL -266.667 37.7 -200.000 -300.000 UG/L 3 10/80 10/81 <br />29 CADMRIM DISSOLVED -0.100 0.0 -0.100 -0.100 UG/L 1 09/89 09/89 <br />3p TOTAL -7.476 9.7 10.000 -20.000 UG/1, 14 10/80 03/86 <br />31 TOTAL RECOV -0.674 1.6 1.300 -3.000 UG/L 63 07/86 09/97 <br />32 LEAD DISSOLVED 40.000 0.0 40.000 40.000 UG/L 1 09/89 09/89 <br />77 TOTAL -60.000 99.9 70.000 -200.000 UG/L 14 10/80 03/86 <br />3q TOTAL RECOV -14.000 14.7 20.000 -20.000 UG/L 20 03/86 01/87 <br />35 AfERCUR1' DISSOLVED -0.100 0.0 -0.100 -0.100 UG/L I 09/89 09/89 <br />36 TOTAL -0.393 1.9 3.000 -3.000 UG/L 14 10/80 07/66 <br />37 TOTAL RECOV -0.163 0.1 0.200 -0.400 UG/L 63 OJ/86 09/97 <br />38 SELENRIAI DISSOLVED -1.000 0.0 -1.000 -1.000 UG/L I 09/89 09/89 <br />TABLE 13A SITE: 29 <br />