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~1'able <br />STATISTICAL ANALYSIS OF WATER QUALITY DATA <br />Monitoring Site ROARING FORK <br />Location DOWNSTREAM <br />Date of Collection 09/29/80 06/11/81 08/13/81 12/18/81 03/28/82 <br /> No. of Mean Std. Max. Min. <br /> Samples Dev. <br />FIELD PARAMETERS 1 <br />Conductivity <br />(umhos/cm at 25(C)) 4 495 122.54 600 330 <br />pH (units) 4 7.61 NA 7.9 7.4 <br />Water Temperature (C) 3 11.33 4.73 15 6 <br />LABORATORY PARAMETERSI <br />Aluminum 5 .01 .01 .03 1E-03 <br />Arsenic 5 0 0 1E-03 1E-03 <br />Barium 5 0 0 1E-03 1E-03 <br />Bicarbonate 5 116.8 57.04 183 34 <br />Boron 5 .18 .18 .5 .045 <br />Cadmium 5 0 0 1E-03 1E-03 <br />~alcium 5 72.53 24.8 93.6 29.9 <br />Carbonate 5 1.92 4.29 9.6 1E-03 <br />Chloride 5 9.44 1.4 11.2 8 <br />Chromium 5 0 0 1E-03 tE-03 <br />Copper 5 0 0 .012 1E-03 <br />Fluoride 5 .19 .07 .265 .OS <br />Hardness (as CaC03) 4 251 101.25 340 106 <br />Iron (dissolved) 5 .11 .12 .28 1E-03 <br />Lead 4 0 0 tE-03 1E-03 <br />Magnesium 5 15.22 4.9 19.92 8.16 <br />Manganese (dissolved) 5 .01 .01 .013 tE-03 <br />Mercury (ug/1) 5 .26 .41 1 .O1 <br />Molybdenum 5 0 0 .011 tE-03 <br />Nitrogen - Ammonia 5 .25 .25 .675 1E-03 <br />Nitrate as N 4 .12 .19 .4 1E-03 <br />Phosphate 4 .17 .22 .49 .03 <br />Potassium 5 1.36 .34 1.8 .9 <br />Selenium 5 0 0 tE-03 1E-03 <br />Sodium 5 5.58 1.96 7.3 3 <br />Solids, Total Dissolved 5 361.6 65.61 430 254 <br />Solids, Total Suspended 4 4.3 4.97 11.6 .8 <br />Sulfate 5 101 49.14 138 16 <br />Sulfide as S 4 .03 •05 .1 1E-03 <br />Zinc 5 .01 .01 .026 4E-03 <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 />