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PACE 1 <br />TABLE 20 <br />SUMMARY OF WATER OUALITV DATA <br />1990 <br />N0. 5 MINE DISCHARGE <br />PARAh1ETER MEAN STD. DEV. MAX. MIN. UNITS. N0. PERIOD <br />PHV SICAL PROPERTIE S <br />TEN.P ERATURE FIElO 14 .320 3 .106 21, 000 7 .p00 DEGREES C 50 1/90-12/90 <br />CONDUCTI VI TV FIELD 1481 .958 55 .802 7578. 000 1344 .000 UMHOS/CM 4B 1/90-12/90 <br />PH FIELD 7 .622 0 .251 8. 600 7 .200 PH 49 1/90-12/90 <br />PH LAB 8 ,200 0 .000 8. 200 8 .200 PH 1 5/90 <br />ALKALINITY TOTAL 788 .000 0 .000 780. 000 788 .000 MG/L t 5/90 <br />SOLIDS DISSOLVED 923 .000 10. 893 932. 000 910 .000 MG/L 4 3/90-10/90 <br />SOLIDS SUSPENDED <9 .833 10. 630 54. 000 <2 .000 MG/L 2a 1/90-12/90 <br />SOLIDS SETTLEABLE <0 .200 0 .000 <0. 200 <0 .200 ML/L 1 5/90 <br />OI LbGREASE VISI 2 .000 0 .000 2. 000 2 .000 49 7/90-12/90 <br />ANIONS <br />BICARBOVATE A3 HC03 961 .000 0. 000 961. 000 967 ,000 MG/L 1 5/90 <br />CHLORIDE 22 .000 0. 000 22. 000 22 .000 MG/L 1 5/90 <br />SULF47E 12 .000 0. 000 12. 000 12 .000 MG/L 1 5/9D <br />GASES <br />SULPHIDE TOTAL <D .OBS 0. 106 0. 16C <0 .010 MG/L 2 5/90- 6/90 <br />PRIMARY <br />4R SEnIC TOTaL <7. 000 0. 000 <I. 000 <t .000 UG/L t 5/90 <br />CADMIUM TOTAL RECD 0. 200 0. 000 0. 200 0 .200 UG/L 1 5/90 <br />MERCURY TOTAL <0. 100 0. 000 <0. 1D0 <0 .100 UG/L I 5/90 <br />SELENIUM TOTAL ct .000 0. 000 <1. 000 <1. 000 UG/L 1 5/90 <br />SILVER TOTAL RECD <1. OOD 0. 000 <t. 000 <t .000 UG/L t 5/90 <br />U = MICRO <br />