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• STATISTICAL ANALYSIS OF WATER QUALITY DATA <br />Monitoring Slte <br />Location <br />Dates of Collection <br />FIELD PARAMETERS 1 <br />Conductivity <br />COLORADO RIVER <br />ABOVE NEW CASTLE <br />06/21/83 09/22/83 12/19/83 03/27/84 <br />No. of Mean Std. Max. Mln. <br />Samples Dev. <br />(umhos/cm at 25(C)) 4 691.25 334.77 980 215 <br />Discharge (cfs) 4 2745 854.42 4000 2180 <br />Dissolved Oxygen 3 10.9 1.59 12.1 9,1 <br />pH (units) 4 7.92 NA 8.6 7.5 <br />Turbidity 4 19.93 37.39 76 .6 <br />Water Temperature (C) 4 8.13 5.27 13 1 <br />LABORATORY PARAMETERS 1 <br />Alkalinity (as CaC03) 4 113.5 30.08 144 78 <br />Aluminum 4 ,85 1,3 2.8 .1 <br />Arsenic 4 ,O1 0 .O1 ,O1 <br />Bicarbonate 4 126.63 34.6 161 83.5 <br />Boron 4 .OS .03 .08 .02 <br />Cadium 4 0 0 .01 3E-04 <br />! Calcium 4 61 12.83 73 43 <br />• Carbonate 4 1.53 1.05 3.1 1 <br />Chloride 4 111.75 61,44 156 21 <br />Conductivity <br />(umhos/cm at 25(C)) 4 735 367,01 1040 210 <br />Copper 4 .02 ,02 .043 6E-03 <br />Fluoride 4 .28 ,07 .36 .18 <br />Hardness (as CaC03) 4 193 49.87 244 126 <br />Hydroxide Ion 3 .5 0 .5 .5 <br />Iron (dissolved) 3 .06 .01 .07 .OS <br />Iron (total) 3 1.71 2.55 4.65 .11 <br />Lead 4 ,02 .03 .067 1E-03 <br />Magnesium 4 10.78 4.42 15 5.9 <br />Manganese (dissolved) 3 .O4 .02 ,OS ,01 <br />Manganese (total) 3 .16 .21 ,4 ,03 <br />Mercury (ug/I) 4 .29 ,48 1 ,OS <br />Molybdenum 4 ,1 0 .1 ,1 <br />Nitrogen - Ammonia 1 ,32 0 ,32 ,32 <br />Nitrate as N 4 1.55 1.45 2.8 .1 <br />pH (units) 4 7,67 NA 8.21 7.28 <br />Phosphate 4 ,09 .06 ,14 .O1 <br />Potassium 4 3.61 1.33 5.3 2.05 <br />SAR (units) 4 2.28 1,26 3.06 .41 <br />Selenium 4 .01 0 .01 ,O1 <br />Sodium 4 75.75 44.27 110 11 <br />Solids, Total Dissolved 4 437 182.17 597 179 <br />Solids, Total Suspended 3 165 276.26 484 5 <br />Sulfate 4 96.75 35.72 128 46 <br />• Zinc 4 ,05 .06 .14 .01 <br />1 All measurements are In milligrams per Ilter (mg/I) unless otherwise noted. <br />