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Chemical Parameters-Data and Statistical Information <br />Harvey Gap Outlet - Above Mine <br />Parameters July Apr96 Avg Std Units <br />Physical Properties <br />pH (lab) 7.9 7.5 7.7 0.2 units <br />Conductivity @25 C 550.0 618.0 584.0 34.0 mhos/cm <br />Alkalinity-CaCO3 Totals 170.0 201.0 185.5 15.5 mg/1 <br />Hardness - CaCO3 292.0 377.0 334.5 42.5 mg/1 <br />Solids, dissolved 340.0 460.0 400.0 60.0 mg/1 <br />SAR in water 0.3 0.3 0.3 0.0 mg/1 <br />Iron 0.1 0.0 0.0 0.0 mg/1 <br />Cations-sum <br />Boron, dissolved 0.0 0.0 0.0 0.0 mg/1 <br />Calcium, dissolved 72.4 93.9 83.2 10.8 mq/1 <br />Magnesium, dissolved 27.0 34.6 30.8 3.8 mg/1 <br />Potassium, dissolved 1.5 1.8 1.7 0.2 mg/1 <br />Sodium, dissolved 7.0 9.3 6.2 1.2 mg/1 <br />Anions <br />Bicarbonate-CaCO3 170.0 201.0 185.5 15.5 mg/1 <br />Carbonate-CaCO3 u u 0.0 0.0 mg/1 <br />Fluoride 0.2 0.3 0.3 0.1 mg/1 <br />Hydroxide-CaCO3 u u 0.0 0.0 mg/1 <br />Sulfate 120.0 170:0 145.0 25.0 mg/1 <br />Note: Samples obtained in April 1996 to replace the samples not taken <br />in December 1995. - <br />10 <br />