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1 <br />t NORTN THOMPSON CREEK UPSTREAM <br /> UWTER QUALITY DATA <br />1 <br /> Pre-Penoit <br />' 10/24/86 05/28/87 09/17/87 Mean <br /> pH 8.0 7.7 8.1 <br />' Conductivity, pmhos/cm @ 25°C 260 102 178 <br /> Temp. °C 3° 6° 8° <br /> TDS 165 158 160 159.6 <br /> TSS 38 <10 <10 91.3 <br />' Bicarbonate 2.90 2.00 120.88 <br /> Calcium 24.40 22.72 30.76 <br />' Chloride <br />Iron <br />0.85 8.56 <br />0.84 6.80 <br />0.49 7.24 <br />0.14 <br /> Magnesium 3.20 3.09 4.89 <br /> Manganese 0.03 <0.02 <0.02 0.010 <br />' Sodium 12.16 11.02 6.98 <br /> Sulfate 16.80 16.96 11.62 <br /> Zinc 0.02 0.02 0.020 <br /> <br />1 - Conductivity calculated by adding 2X t• the fief measurement <br />for each °C below 25°C. <br />- All parameters Iellw Temp. in mg/L. <br />' - Pre-Permit Mean fleta is located in Appendix 3-Q, <br />Volume II of Snowmass' Permit Application. <br />1 <br />1 <br /> <br /> <br /> <br /> <br />