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• <br />CYPRUS ORCHARD VALLEY COAL CORPORATION <br />1993 ANNUAL HYDROLOGY REPORT <br />HYDROLOGY MONITORING DATA <br />STATION: S0710 <br />Field . Date <br />Parameters 06/25/9 <br />Flow Rate (cis) 0.0028 <br />Water Level <br />Tem rature C°) 10 <br />Conductivity (umhos/cm 430 <br />H 7.9 <br />Lab. . <br />Parameters <br />Alkalini as CaC03 m /I <br />Bicarbonate as CaC03 mg/I <br />Carbonate as CaC03 (mg! <br />Calcuim, dissolved mgA) <br />Chbride (mg/1) <br />ConductNi @ 25 C° umhos(cm) <br />H <br />Hardtess as CaC03 m A <br />Ma nesium, dissolved mg/I <br />Sodium, dissolved mgA <br />Sulfate (mgA) <br />TDS Ratb grav./calc. <br />Solids, total dissolved (m A) <br />Solids, total sus ended (mgfl) <br />Monitoring of Spring 7-10 was temporarily suspended effective 1994 (see TR-24). Spring 7-10 lies outside of the area of poternial mine impacts gNert <br />mine development to dace, Monitoring of Spring 7-10 will tie renewed 1 year prior to further development of the East mine with quarterly flow and field <br />parameter measurements and an annual water quality sample. <br />