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<br />SEMI -ANNUAL TESTING <br />GROUND WATER QUALITY PARAMETERS <br />SEMI -ANNUAL TESTING <br />GROUND WATER QUALITY PARAMETERS <br />SITE: GW-N18P1 <br />FORMATION: UNDERBURDEN <br />DATE OF COLLECTION 24-Feb-98 12-Aug-98 <br />FIELD PARAMETERS <br />pH 7.13 7.19 <br />Water Temperature (deg C) 12 18.6 <br />Conductivity (umhos/cm) 2910 1500 <br />LABORATORY PARAMETERS <br />Metals Analysis <br />Aluminum, dissolved (mg/L) U 0.03 <br />Calcium, dissolved (mg/L) 564 270 <br />Iron, dissolved (mg/L) U 0.02 <br />Lead, dissolved (mg1L) U U <br />• <br />Magnesium, dissolved (mg/L) 251 82 <br />Manganese, dissolved (mg/L) 0.11 0.054 <br />Molybdenum, dissolved (mg/L) U U <br />Potassium (mg/L) 4.6 2 <br />Selenium, dissolved (mglL) U 0.002 <br />Sodium, dissolved (mg/L) 177 44.6 <br />Wet Chemistry <br />Alkalinity as CaCO3 <br />Bicarbonate as CaCO3 (mg/L) 375 292 <br />Carbonate as CaCO3 (mg/L) U U <br />Hydroxide as CaCO3 (mg/L) U U <br />Total Alkalinity 375 292 <br />Cation-Anion Balance <br />Cation-Anion Balance (%) 1.3 -2.8 <br />Sum of Anions (meq/L) 55.3 23.5 <br />Sum of Cations (meglL) 56.7 22.2 <br />Chloride, dissolved (mg/L) 13 7 <br />Conductivity @ 25C (umhos/cm) 3890 1810 <br />Hardness as CaCO3 (mg/L) 2440 1010 <br />Nitrate as N (mg/L) U 0.28 <br />Nitrate/Nitrite as N (mg1L) U 0.28 <br />Nitrite as N (mg/L) U U <br />Nitrogen, ammonia (mg/L) 0.17 <br />pH @ 25C 7 7.4 <br />• <br />Phosphate as PO4 (mg/L) U U <br />Phosphorus (mg/L) 0.007 0.008 <br />Sodium Absorption Ratio in Water 1.58 0.61 <br />c: l da ca \gyro wa [er 1 98 ~ ABa nnhyd. wb3 <br />