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PAGE 4 <br />TABLE 15 {CUNl1NUED) <br />SUMMARY OF WATEF gUALITV DATA <br />N0. 5 MINE DISCHARGE <br />PARAMETER <br />SECONDARY <br />MEAN STO. DEV. MAX. MIN. UNITS. N0. PERI00 <br />COPPER DISSOLVED <20 .000 0. 000 <20 .000 <20. 000 UG/L 1 8/83 <br />COPPER TOTAL <3 .045 3 .860 <20 .000 <2. 000 UG/L 22 1/63- 3/B5 <br />COPPER TOTAL RECO <48 .000 96. 120 290 .000 1. 000 UG/L 8 9/B1- 5/90 <br />ZS NC DISSOLVED <5 .000 0. 000 <5 .000 <5. 000 UG/l 1 8/83 <br />ZINC TOTAL <34. 213 76. 957 630 .000 <5. 000 UG/L 75 7/83- 7/86 <br />ZINC TOTAL RECD c1B. 629 31. 922 331 .000 <5. 000 UG/L 116 9/81-12/90 <br />7RON DISSOLVED 140. 000 0. 000 140 .000 140. 000 UG/L 1 5/90 <br />IRON TOTAL <307, 230 265. 221 1300 .000 <2D. 000 UG/L 65 9/81- 5/86 <br />IRON TOTAL RECO 231. x03 122. 174 730 .000 20. 000 UG/L 57 6/66-12/90 <br />MANGANESE DISSOLVED c10. 000 0. 000 <10 .000 <10. 000 UG/L 1 5/90 <br />MANGANESE TOTAL c17. 500 5. 000 20 .000 10. 000 UG/l 4 8/83- 3/86 <br />MANGANESE TOTAL RECD <20. 000 4. 472 30 .000 <10. 000 UG/L 11 9/81- 5/90 <br />TRACE METALS <br />BORON DISSOLVED 365. 000 21 .213 380. 000 350. 000 UG/L 2 8/B3- 5/90 <br />BOROH TOTAL 415. 000 49 .497 450. 000 380. 000 UG/L 2 B/83- 9/63 <br />BORON TOTAL RELO 473. 333 121 ,655 520. 000 710. 000 UG/L 9 9/81-12/83 <br />MOLYBDENUM DISSOLVED <200. 000 0 .000 <200. 000 c200. 000 UG/L 1 B/B3 <br />MOL VBDENUM TOTAL c200. 000 0 .000 <200. 000 <200. 000 UG/L 2 B/83- 9/83 <br />MOLYBDENUM TOTAL RECD <222. 222 66 .666 400. 000 <200. 000 UG/L 9 9/81-72/83 <br />NICKEL TOTAL RECO <20. 000 0 .000 c20. 000 <20. 000 UG/L 1 5/90 <br />NUTRIENTS <br />NITROGEN NITRATE <0.020 0.000 <0.020 <0.020 MG/L 1 5/90 <br />NITROGEN N03~N02 <0.274 0.210 0.650 <0.020 MG/L 12 9/81- 5/90 <br />U = MICRO <br />