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• • <br />CYPRUS ORCHARD VALLEY COAL CORPORATION <br />1993 ANNUAL HYDROLOGY REPORT <br />HYDROLOGY MONfTORING DATA <br />STATION: P1307 <br />Field Date <br />Parameters 05)27/9 06/24/9 07/10/9 08113/9 10/1219 <br />Flow Rate (cfs) 0.0000 0.0000 0.0000 0.0000 0.0000 <br />Water Level 3/4 full 1 /21u11 1 /31u11 1 /41u11 1 /41u11 <br />Tem rature C <br />Conductiv' umhos/an <br />H <br />Lab :: <br />Parartieters <br />Alkalini as CaCO3 m /I <br />Bicarbonate as CaCO3 m /I <br />Carbonate as CaCO3 m i <br />Calcuim, dissolved m <br />Chbride (mg/~ <br />Conductlvi @ 25 C° umhos/cm <br />H <br />Hardness as CaCO3 m /I <br />M nesium, dissolved m /I <br />Sodium, dissolved m <br />Sulfate (mg/I) <br />TDS Ratio rav./calc. <br />Solids, total dissolved m <br />Solids, total su nded m <br />' Required monitoring frequency for Pond 13-7 ettec6ve 1994 (see TR-24) Is quarterly for flows, field parameters, water levels; annual water quality sample. <br />