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PAGE 1 <br /> TABLE 20 <br /> SUMMARY OF WATER QUALITY DATA <br /> 1989 <br /> NO. 5 MINE DISCHARGE <br /> PARAMETER MEAN STD. DEV. MAX. MIN. UNITS. NO. PERIOD <br /> PHYSICAL PROPERTIES <br /> TEMPERATURE FIELD 14.940 3.722 22.000 6.000 DEGREES C 50 1/89-12/89 <br /> CONDUCTIVITY FIELD 1395.326 122.309 1654.000 1103.000 UMHOS/CM 49 1/89-12/89 <br /> CONDUCTIVITY LAB 1560.000 0.000 1560.000 1560.000 UMHOS/CM 1 8/89 <br /> PH FIELD 7.728 0.248 8.200 7.300 PH 50 1/89-12/89 <br /> PH LAB 7.300 0.000 7.300 7.300 PH 1 8/89 <br /> SOLIDS DISSOLVED 907.200 19.214 928.000 878.00D MG/L 5 1/89-10/89 <br /> SOLIDS SUSPENDED <5.920 4.563 22.000 <2.000 MG/L 25 1/89-12/89 <br /> OILBGREASE VISI 2.000 0.000 2.000 2.000 49 1/89-12/89 <br /> GASES <br /> SULPHIDE TOTAL <0.010 0.000 <0.010 <0.010 MG/L 1 10/89 <br /> SECONDARY <br /> ZINC TOTAL RECO <19.200 21 .587 90.000 110.000 UG/L 25 1/69-12/89 <br /> IRON TOTAL RECO 230.769 94.556 410.000 20.000 UG/L 13 1/89-12/89 <br /> ORGANICS <br /> OILBGREASE <1 .000 0.000 <1 .000 <1 .000 MG/L 1 10/89 <br /> U = MICRO <br />