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• • <br />CYPRUS ORCHARD VALLEY COAL CORPORATION <br />1993 ANNUAL HYDROLOGY REPORT <br />HYDROLOGY MONITORING DATA <br />STATION: P0711 <br />Field::.. Date <br />Parameters 06/24/9 07/17!9 08/13/93 <br />FIoW Rate (cts) 0.0016 0.0000 0.0000 <br />Water Level Full 1/81u11 D <br />Tem rature C 16 <br />Conductiv' umhos/cm 430 <br />H 8.4 <br />Lab <br />Parameters <br />Alkalin' as CaCO3 / <br />Bk;arbonate as CaCO3 m <br />Carbonate as CaCO3 m <br />Calcukn, dissolved m <br />Chbride (mg/I) <br />Conductiv' @ 25 C° umhos/cm) <br />H <br />Hardness as CaCO3 m <br />M nesium, dissolved m / <br />Sodium, dissolved m <br />SuMate (mg/I) <br />TDS Ratb rev./cak;. <br />Solids, total dissolved m <br />Solids, total su nded m <br />Monitoring of Pond 7-11 was temporarily suspended effective 1994 (see TR-24). Pond 7-11 overlies an area of the East mine inactive since 1983. <br />Monitoring of Pond 7-11 will be renewed 1 year prior to lurther development of the East mine with quarterly flow, field parameter, and water level <br />measurements and an annual water quality sample. <br />