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<br />CYPRUS ORCHARD VALLEY COAL CORPORATION <br />1993 ANNUAL HYDROLOGY REPORT <br />HYDROLOGY MONRORING DATA <br />STATION: P0707 <br />• <br />Field Date <br />Parameters 06/24/9 07/17/9 06/13/93 <br />Flow Rate (cts) 0.0000 0.0000 0.0000 <br />Water Level 1/2 full Damp D <br />Tem rature C <br />Conductiv' umhos/cm <br />H <br />Lab <br />Parameters <br />Alkalin' as CaCO3 <br />Bk;arbonate as CaCO3 <br />Carbonate as CaCO3 m <br />Calcufn, dissolved m <br />Chbtide (mg/q <br />Conductir' p 25 C° umhos/cm) <br />H <br />Hardness as CaCO3 m A <br />M neslum, dissolved m I <br />Sodium, dissolved m A <br />Sulfate (mg/I) <br />TDS Ratio ravJcak:. <br />Solids, total dissolved m <br />Solids, total su nded m <br />Monitoring of Pond 7-7 was temporarily suspended etiective 1994 (see TR-24). Pond 7-7 overlies an area of the East mine inactive since 1983. <br />Monitoring of Pond 7-7 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 />