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ANNUAL TESTING <br />• GROUND WATER QUALITY PARAMETERS <br />SITE: GW-N11 <br />FORMATION: Overburden 8 Coal <br />DATE OF 16-Aug-00 <br />FIELD PARAMETERS <br />pH 7.29 <br />Water Temperature (deg C) n/a <br />Conductivity (umhos/cm) 1228 <br />LABORATORY PARAMETERS <br />Mefals Analysis <br />Aluminum, dissolved (mg/L) U <br />Calcium, dissolved (mg/L) 150 <br />Iron, dissolved (mg/L) 0.01 <br />Lead, dissolved (mg/L) U <br />Magnesium, dissolved (mg/L) 80.1 <br />Manganese, dissolved (mg/L) 0.121 <br />Molybdenum, dissolved (mg/L) U <br />Potassium (mg/L) 28.7 <br />Selenium, dissolved (mg/L) U <br />Sodium, dissolved (mg/L) 65.4 <br />Wet Chemistry <br />Alkalinity as CaCO3 <br />Bicarbonate as CaCO3 (mg/L) 568 <br />Carbonate as CaCO3 (mg/L) U <br />Hydroxide as CaCO3 (mg/L) Ui <br />Total Alkalinity 568 <br />Cation-Anion Balance <br />Cation-Anion Balance (%) 1.1 <br />Sum of Anions (meq/L) 17.4 <br />Sum of Cations (meq/L) 17.8 <br />Chloride, dissolved (mg/L) 12 <br />Conductivity @ 25C (umhos/cm) 1400 <br />Hardness as CaCO3 (mg/L) 704 <br />Nitrate as N (mg/L) 0.04 <br />Nitrate/Nitrite as N (mg/L) 0.04 <br />Nitrite as N (mg/L) U <br />Nitrogen, ammonia (mg/L) 0.78 <br />pH @ 25C 7.3 <br />Phosphate as PO4 (mg/L) <br />Phosphorus (mg/L) 0.007 <br />Sodium Absorption Ratio in Water 1.08 <br />Sulfate, dissolved (mg/L) 270 <br />Total Dissolved Solids @ 180C (mg/L) 940 <br />Total Dissolved Solids, calculated (mg/L) 948 <br />. 1. Negative (-) =less than <br />2 U = no[ detected at MDL (Minimum Detection Level) <br />c:\data \gpro \wa ter199\99annhyd. wb3 <br />