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• GROUND WATER QUALITY PARAMETERS <br />SITE: GW-N40 <br />17-Feb-04 26-Aug-04 <br />FIELD PARAMETERS <br />pH 7.31 7.13 <br />Water Temperature (deg C) 11.8 20.3 <br />Conductivity (umhos/cm) 2520 3060 <br />LABORATORY PARAMETERS <br /> Metals Analysis <br /> Aluminum, dissolved 0.03 0.06 <br /> Calcium, dissolved 548 496 <br /> Iron, dissolved 0.04 0.04 <br /> Lead, dissolved 0.0002 0.0002 <br /> Magnesium, dissolved 142 145 <br /> Manganese, dissolved 2.070 1.66 <br /> Molybdenum, dissolved 0.01 0.02 <br /> Potassium, dissolved 3.5 3.1 <br /> Selenium, dissolved 0.0005 0.002 <br />• Sodium, dissolved 88.8 74.8 <br /> Wet Chemistry <br /> Bicarbonate as CaCO3 335 341 <br /> Carbonate as CaCO3 2 2 <br /> Hydroxide as CaCO3 2 2 <br /> Total Alkalinity 335 341 <br /> Cation-Anion Balance -4.2 -10.7 <br /> Sum of Anions 47.0 49.8 <br /> Sum of Cations 43.2 40.2 <br /> Chloride 13 14 <br /> Conductivity @25C 2760 3180 <br /> Hardness as CaCO3 1950 1840 <br /> Nitrate as N, dissolved 0.05 <br /> Nitrate/Nitrite as N, dissolve 0.05 0.04 <br /> Nitrite as N, dissolved 0.01 0.03 <br /> Nitrogen, ammonia 0.17 0.16 <br /> pH (lab) 7.7 7.6 <br /> Phosphate 0.09 0.09 <br /> Phosphorus, ortho dissolved 0.03 0.03 <br /> Residue, Filterable (TDS) @180 3140 3090 <br /> Sodium Absorption Ratio in Wat 0.88 0.76 <br /> Sulfate 1900 2030 <br /> TDS (calculated) 2900 2970 <br /> TDS (ratio -measured/calculat 1.08 1.04 <br />• 1. Negative (-) =less than <br /> 2. V =not detected at MDL (Minimum Detection Level) <br />