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• • <br />CYPRUS ORCHARD VALLEY COAL CORPORATION <br />1993 ANNUAL HYDROLOGY REPORT <br />HYDROLOGY MONITORING DATA <br />STATION: P1202 <br />Field Date <br />Parameters 06/24/9 07117/9 08/13/93 <br />F{ow Rate (cfs) 0.0035 0.0001 0.0001 <br />Water Level Full Full Full <br />Tem rature C 20 21 24 <br />Conductiv' umhos/cm 460 290 430 <br />H 9.0 8.7 9.0 <br />Lab <br />Parameters <br />Alkalin' as CaC03 m <br />Bicarbonate as CaC03 I <br />Carbonate as CaC03 m <br />Cak:uin, dissolved m <br />Chbrlde (mgiq <br />Conductiv' @ 25 C° umhos/cm <br />H <br />Hardness as CaC03 m <br />M nesium, dissolved m / <br />Sodium, dissolved m A <br />SuHate (mg/1) <br />TDS Ratb rav./calc. <br />Solids, total dissolved m <br />Solids, total su nded m R <br />Monitoring of Pond 12-2 was temporarily suspended effective 1994 (see TR-24). Pond 12-2 overlies an area of the East mine Inactive since 1983. <br />Monitoring of Pond 12-2 will be renewed 1 year prior to further development of the East mine with quarterly flow, held parameter, and water level <br />measurements and an annual water quality sample. <br />