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• <br />Table 18 <br />SUMMARY OF WATER QUALITY DATA <br />$UMIIARV OF WATER OU4LITY DATA, N0. 5 MINE DISCHARGE <br />PARAMETER MEAN STD. DEV. MAX. MIN. UNITS. H0. PERIOD <br />PHYSICAL PROPERTIES <br />TEMPER4TURE FIELD 14.986 3.736 23.000 6.000 DEGREES C 313 5/BI-12/92 <br />CONDUCTIVITY FIELD 1390.406 109.092 1654.000 1050.000 UMHOS/C.N 306 5/82-12/92 <br />CONDUCTIVITY LAB 1260.000 150.374 1560.000 950.000 UMHOS/CM 17 9/61- B/89 <br />PH FIELD 7.670 0.282 6.600 7.000 PH 310 5/82-1I/92 <br />PH LAB 8.236 0.315 6.660 7.300 PH 17 9/B 1- 5/90 <br />ALNALINITV T0T4L 666.500 47.079 788.000 616.000 MG/L 12 9/B1- 5/90 <br />A CIDI7V AS CAC03 <fi 68.000 0.000 <E6B.000 0.000 MG/L 3 12/65- 6/B6 <br />HARDNESS TOTAL ~ 137.090 233.503 837.000 36.000 MG/L 11 9/81-fI/B3 <br />SOLIDS DISSOLVED 870.080 75.956 1178.000 675.000 MG/L 75 9/81-11/92 <br />SOLIDS SL'S PENOEO <8.912 9.086 70.000 2.000 MG/L 241 12/81-12/92 <br />SOLIDS SE7TLEA9LE <0.200 0.000 <0.200 <0.200 ML/L 1 5/90 <br />O1L8GREAS-c VISI 2.000 0.000 2.000 2.000 309 1/87-1I/92 <br />SAR 17.422 4.492 25.393 12.910 11 9/87-12/83 <br />CA 7f ON5 <br />CALCIUM TOTAL 9.000 1.414 10.000 8.000 MG/L 2 8/83- 9/83 <br />CALCIUM TOTAL RECO IS.6fio 6.204 24,000 7.000 MG/L 9 9/61-12/83 <br />MAGNESIUM TOTAL 4.500 0.707 5.000 4.000 MG/L 2 8/83- 9/83 <br />NAGtiESlUM TOTAL RECO B.6fifi 2.345 12.000 4.000 MG/L 9 9/81-72/83 <br />SODIUM TOTAL 327.500 7.778 333.000 322.000 MG/L 2 B/83- 9/83 <br />SOOiUM TOTAL RECD 308.4C4 21.754 352.000 272.000 MG/L 9 9/81-12/53 <br />POTASSIUM TOTAL 5.350 0.494 5.700 5.000 MG/L 2 B/B3- 9/9J <br />POTASSIUM TOTAL RECD 4.866 0.744 6.40D 3.600 MG/L 9 9/81-12/83 <br />U = MICRO <br />7 <br />L <br />J <br />J <br /> <br />