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• <br />CYPRUS ORCHARD VALLEY COAL CORPORATION <br />1993 ANNUAL HYDROLOGY REPORT <br />HYDROLOGY MONITORING DATA <br />STATION: SP1306 <br />Field Date <br />Parameters OS/Z7/9 06/24/9 07/10/9 OB/13/9 10(12/9 <br />Flow Rate (cfs) 0.0081 0.0054 0.0011 0.0002 0.0016 <br />Water Level Full Full Full Full Ful{ <br />Tem rature C 11 12 12 11 11 <br />Conductiv' umhos/cm 490 460 390 330 380 <br />H 8.3 8.1 8.4 8.3 8.5 <br />Lab:-..:. <br />Parameters <br />Alkalin' as CaC03 I 27g <br />Bicarbonate as CaC03 m I 276 <br />Carbonate as CaC03 m 0 <br />Calcuim, dissolved m 55 <br />Chbride (mg/q 7 <br />Conductiv' @ 25 C° umhos/cm 545 <br />H 8.0 <br />Hardness as CaC03 m 261 <br />M nesium, dissolved m !I 3p <br />Sodium, dissolved m A 15 <br />Sulfate (mgA) es <br />TDS Ratb ravJcak:. 0,85 <br />Solids, total dissolved m 304 <br />Solids, total su nded m 348 <br />• Required monitoring frequency for Spring & Pond 13-6 effective 1994 (see TR-24) is quarterly for flows, water levels, and field parameters; annual water <br />quality sample. <br />