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NUCLA MINE SURFACE WATER QUALITY REPORT <br />SAMPLE POINT SW-N1(SA0001) <br />LOCATION 47N15W31CBA <br />BASIN TUTTLE DRAW <br />• <br />DATE OF COLLECTION 04/10/91 09 /12/91 <br />FIELD PARAMETERS <br />CONDUCTIVITY (UMHOS/CM) 1330.00 920.00 <br />PH (UNITS) 8.24 8.22 <br />WATER TEMPERATURE (DEG C) 8.90 13.60 <br />FLOW (CFS) 0.171 1.130 <br />LABORATORY PARAMETERS <br />ACIDITY, DISS. (MG/L OF CACO3) 0.00 0.00 <br />ALKALINITY, DISS. (MG/L OF CACO3) 384.00 254.00 <br />ALUMINUM, TOTAL RECOVERABLE (MG/L) < 0.05 1.02 <br />ARSENIC, TOTAL RECOVERABLE (UG/L) 2.00 < 1.00 <br />BARIUM, TOTAL RECOVERABLE (UG/L) 70.00 90.00 <br />BICARBONATE, DISS. (MG/L) 468.00 310.00 <br />BORON, DISS. (UG/L) 180.00 120.00 <br />CADMIUM, TOTAL RECOVERABLE (UG/L) < 5.00 < 5.00 <br />CALCIUM, DISS. (MG/L) 222.00 118.00 <br />CARBONATE, DISS. (MG/L) 0.00 0.00 <br />CHLORIDE, DISS. (MG/L) ~ 31.00 14.00 <br />CHROMIUM, TOTAL RECOVERABLE (UG/L) <br />CONDUCTIVITY @ 25 DEG C (UMHOS/CM) 1'900.00 812.00 <br />COPPER, TOTAL RECOVERABLE (UG/L) < 10.00 < 10.00 <br />FLUORIDE, DISS. (MG/L) 1.00 0.70 <br />HARDNESS AS CACO3 (MG/L) 1145.00 500.00 <br />IRON, TOTAL (MG/L) 0.12 0.53 <br />IRON, DISS. (MG/L) 0.02 0.21 <br />• LEAD, TOTAL RECOVERABLE (UG/L) < 20.00 < 20.00 <br />MAGNESIUM, DISS. (MG/L) 144.00 50.00 <br />MANGANESE, TOTAL (MG/L) 0.26 0.17 <br />MANGANESE, DISS. (MG/L) 0.26 0.14 <br />MERCURY, TOTAL RECOVERABLE (UG/L) < 0.10 < 0.10 <br />MOLYBDENUM, TOTAL RECOVERABLE (UG/L) 4.00 < 1.00 <br />NICKEL, TOTAL RECOVERABLE (UG/L) < 20.00 < 20.00 <br />NITROGEN, AMMONIA, DISS. (MG/L) 0.07 < 0.05 <br />NITROGEN, NITRATE, DISS. (MG/L) 0.11 < 0.02 <br />NITROGEN, NITRITE, DISS. (MG/L). < 0.01 < 0.01 <br />PH @ 25 DEG C 8.30 8.30 <br />PHOSPHATE AS PO4, DISS. (MG/L) 0.10 < 0.10 <br />POTASSIUM, DISS. (MG/L) 5.00 3.00 <br />SELENIUM, TOTAL RECOVERABLE (UG/L) < 1.00 < 1.00 <br />SILVER, TOTAL RECOVERABLE (UG/L) . <br />SODIUM, DISS. (MG/L) 71.00 23.00 <br />SAR 0.92 0.45 <br />SULFATE, DISS. (MG/L) 856.00 268.00 <br />SULFIDE, TOTAL (MG/L) < 0.10 0.06 <br />SUSPENDED SOLIDS (MG/L) < 2.00 42.00 <br />ZINC, TOTAL RECOVERABLE (MG/L) 0.04 0.03 <br />CATION/ANION BALANCE (o) - 0.68 - 0.05 <br />TOTAL DISSOLVED SOLIDS @ 180 DEG (MG/L) 1610.00 662.00 <br />TOTAL DISSOLVED SOLIDS, CALCULATED (MG/L) 1554.00 625.00 <br />• INDICATES NO DATA <br />C-1 <br />