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� i s i i i i i ■� i ! i i, i � i i i i <br /> PAGE 1 <br /> TABLE 52 <br /> SUMMARY OF WATER QUALITY DATA <br /> MINE NO. 2 SPOIL SPRINGS <br /> PARAMETER MEAN STD. DEV. MAX. MIN. UNITS. NO. PERIOD <br /> PHYSICAL PROPERTIES <br /> TEMPERATURE FIELD 15.200 5.287 25.000 9.000 DEGREES C 10 5/86- 5/B9 <br /> CONDUCTIVITY FIELD 1439.666 321 .888 1979.000 940.000 UMHOS/CM 9 5/66- 5/89 <br /> CONDUCTIVITY LAB 1307.500 115.866 1470.000 1200.000 UMHOS/CM 4 5/86- 5/89 <br /> PH FIELD ' 7.669 0.466 B.430 7.040 PH 10 5/86- 5/89 <br /> ALKALINITY TOTAL 356.000 124.450 444.000 268.000 MG/L 2 5/87- 5/09 <br /> HARDNESS TOTAL 775.000 251 .326 1036.000 332.000 MG/L 6 5/86 <br /> SOLIDS DISSOLVED 910.333 313.867 1248.000 324.000 MG/L 6 5/86 <br /> SOLIDS SUSPENDED 50.000 28.649 82.000 10.000 MG/L 6 5/86 <br /> SOLIDS SETTLEABLE <0.550 0.494 0.900 <0.200 MG/L 2 5/86 <br /> OILBGREASE VISI 2.000 0.000 2.000 2.000 1 5/89 <br /> SAR 0.422 0. 163 0.597 0.219 6 5/86 <br /> CATIONS <br /> CALCIUM DISSOLVED 183. 166 53.744 247.000 90.000 MG/L 6 5/86 <br /> MAGNESIUM DISSOLVED 77. 166 34.365 126.000 26.000 MG/L 6 5/86 <br /> SODIUM DISSOLVED 28.833 13.991 46.000 10.000 MG/L 6 5/86 <br /> ANIONS <br /> BICARBONATE AS HCO3 421 .666 92.996 542.000 314.000 MG/L 6 5/86 <br /> CHLORIDE <5.500 7.047 16.000 <1 .000 MG/L 4 5/86 <br /> SULFATE 397.000 209.956 628.000 25.000 MG/L 6 5/86 <br /> U = MICRO <br />