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<br /> PAGE 2 <br /> TABLE 2D (CONTINUED) <br /> SUMMARY OF WATER QUALITY DATA <br /> 1990 <br /> N0. 5 MINE DISCHARGE <br />PARAMETER MEAN STD. DEV. MAX. MIN. UNITS. N0. PER10D <br />SECONDARY <br />COPPER TOTAL RECO 1 .000 0.000 1.000 7 .000 UG/L 1 5/90 <br />ZINC TOTAL RECO <15 .200 9.183 50.000 <10 .000 UG/L 25 1/90-12/90 <br />IRON DISSOLVED 140 .000 0.000 ta0.000 140 .000 UG/L 1 5/90 <br />IRON TOTAL RECD 281 .538 772.956 730.000 720 .000 UG/L 13 1/90-72/90 <br />MANGANESE DISSOLVED <10 .000 0.000 <10.000 <10 .000 UG/L 1 5/90 <br />MANGANESE TOTAL RECD 20 .000 0.000 20.000 20 .000 UG/L 1 5/90 <br />TRACE METALS <br />80RON D1550LVED 350. 000 0.000 350.000 350 .000 UG/L 1 5/90 <br />NICKEL TOTAL RECD <20. 000 0.000 <20.000 <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. 020 0.000 <0.020 <0. 020 MG/L 1 5/90 <br />ORGANICS <br />OILBGREA SE 4. 000 1.414 5.000 3. 000 MG/L 2 5/90- 6/90 <br />U = MICRO <br />