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• • <br />CYPRUS ORCHARD VALLEY COAL CORPORATION <br />1993 ANNUAL HYDROLOGY REPORT <br />HYDROLOGY MONITORING DATA <br />STATION: P1901 <br />Field Date <br />Parameters 06/25!9 07/15/9 <br />Flow Rate (cfs) 0.0127 0,0016 <br />Water Level 16 18 <br />Tem rature C 2370 1960 <br />Conductiv' umhos/cm 16 18 <br />H 8.7 9.1 <br />Lati .:::..; <br />Parameters <br />Alkalin' as CaC03 m 1 <br />Bicarbonate as CaC03 m /I <br />Carbonate as CaC03 m <br />Calcuim, dissolved m fl <br />Chbride (mg/I) <br />Conductivit @ 25 C° umhos)cm <br />H <br />Hardness as CaC03 m A <br />M nesium, dissolved m /I <br />Sodium, dissolved m <br />SuHate (mg11) <br />TDS Ratb ravJcalc. <br />Solids, total dissolved m <br />Solids, total su nded m <br />Monitoring of Pond 19-1 was temporartly suspended effective 1994 (see TR-24). Pond 19-1 ovedies an area of the East mine Inactive sktce 1983. <br />Monitoring of Pond 19-1 will be renewed 1 year prior to further development of the East mine with quarterly flow, field parameter, and water level <br />measurements and an annual water quality sample. <br />