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Table 3 <br />~URFACE WATER CHEMICAL ANALYSIS <br />Monitoring Site MID. THOMPSON CR. <br />Location DOWNSTREAM <br />Date of Collection 06/11/81 08/17/81 12/18/81 03/31/82 <br />FIELD PARAMETER51 <br />Conductivity <br />(umhos/em at 25(C)) 220 175 205 141 <br />Discharge (cfs) 16.26 2.62 1.82 FROZEN <br />pH (units) 7.3 7.8 7.0 7.4 <br />Water Temperature (C) 10 11 0.0 4 <br />LABORATORY PARAMETER51 <br />Aluminum 0.015 0.05 0.017 0.031 <br />Arsenic -0.001 -0.001 -0.001 -0.001 <br />Barium -0.001 -0.001 -0.001 -0.001 <br />Bicarbonate 56.20 101.4 116 48.4 <br />Boron 0.070 0.07 0.015 0.089 <br />Cadmium -0.001 -0.001 -0.001 -0.001 <br />Calcium 20.10 25.45 30.2 24 <br />Carbonate -0.001 -0.001 -0.01 -0.001 <br />ation - Anion <br />~ <br />Balance (%)3 -7.61 -2.37 6.66 <br />Chloride 5.400 4.8 6.0 20 <br />Chromium -0.001 -0.001 -0.001 0.002 <br />Copper 0.013 -0.001 0.026 0.008 <br />Fluoride 0.100 0.42 0.088 0.190 <br />Hardness (as CaC03) 64.0 122 94.4 90.1 <br />Iron (dissolved) 0.060 0.05 0.05 0.360 <br />Magnesium 3.400 7.22 5.3 -0.001 <br />Manganese (dissolved) 0.002 0.002 0.002 0.013 <br />Mercury (ug/1) -0.01 -0.1 -0.1 -0.1 <br />Molybdenum -0.001 0.004 -0.001 0.007 <br />Nickel -0.004 -0.001 -0.001 0.003 <br />Nitrogen - Ammonia 0.100 0.05 -0.001 0.580 <br />Nitrate as N -0.001 -0.001 -0.001 0.140 <br />Phosphate 0.024 0.720 0.022 0.070 <br />Potassium 1.000 1.4 0.60 2.760 <br />Selenium -0.001 -0.001 -0.001 0.007 <br />Sodium 4.000 7.8 9.O 5.9 <br />Solids, Total Dissolved 75.0 122.4 198 152 <br />Solids, Total Suspended 3.60 3.6 5.0 400 <br />Sulfate 10.60 6 8.2 18 <br />Sulfide as S -0.001 -0.001 -0.001 -0.1 <br />Zinc 0.020 0.004 0.005 0.021 <br />VOLATILE SOLIDS 12.0 38 154 32 <br />All measurements are in milligrams per liter (mg/1) unless otherwise noted. <br />A minus sign indicates concentrations below analytical detection limits. <br />2 Negative acidity indicates that the water is alkaline. <br />3 A negative balance indicates that cations exceed anions. <br />