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• • <br />CYPRUS ORCHARD VALLEY COAL CORPORATION <br />1893 ANNUAL HYDROLOGY REPORT <br />HYDROLOGY MONRORING DATA <br />STATION: SP2300 <br />Field Date <br />Parameters 06/24/9 07/17/9 06/13/9 <br />Flow Rate (cfs) 0.0047 0.0011 0,0000 <br />Water Level Full Full 7/8 lull <br />Tem rature C 15 21 <br />Conductiv' umhos/cm 650 420 <br />H 8.4 8.4 <br />Lab.:; ;.:: <br />Parameters <br />Alkalini as CaC03 m I <br />Bicarbonate as CaC03 m I <br />Carbonate as CaC03 m <br />Calcuim, dissolved m <br />Chbride (mg/I) <br />Conductivi @ 25 C° umhos/cm <br />H <br />Hardness as CaC03 m /I <br />M neslum, dissolved m I <br />Sodium, dissolved m A <br />Sulfate (mg/I) <br />TDS Ratio ravJcalc. <br />Solids, total dissolved m <br />Solids, total su nded m <br />Monitoring of Spring & Pond 23 was temporarily suspended effective 1994 (see TR-24). Spring & Pond 23 overlies of an area of the East mine Inactive <br />since 1984. No retreat mining has occurred In the vicinity of this ske. Monitoring of Spring 8 Pond 23 will be renewed 1 year prior to further development <br />of the East mine with quarterly Ilow, water level, and field parameter measurements and an annual water quaily sample. <br />