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• • <br />CYPRUS ORCHARD VALLEY COAL CORPORATION <br />1993 ANNUAL HYDROLOGY REPORT <br />HYDROLOGY MONffORING DATA <br />STATION: Pt1804 <br />Field .:.:..: Date <br />Parameters <br />Flow Rate (cis) <br />Water Level <br />Tem rature C <br />Conductlvi umhos/cm <br />H <br />Lab <br />Parameters <br />Alkalin' as CaC03 m <br />Bicarbonate as CaC03 m I <br />Carbonate as CaC03 m <br />Calcuim, dissolved m <br />Chbride (mg/I) <br />Conductiv' @ 25 C° umhoslcm <br />H <br />Hardiess as CaC03 m p <br />M neslum, dissolved m /I <br />Sodium, dissolved m <br />Sulfate (mgp) <br />TDS Ratb ravJcalc. <br />Solids, total dissolved m <br />Solids, total su nded m <br />MonRoring of Pond 8-4 was permanenNy suspended ertective 1994 (see TR-24). Pond a-4 was lound to lie outside the area of potential mining <br />Impacts. In addition, the dam on this pond has been breached since 1987. No additional monitoring of this feature took place during 1993. <br />