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<br />~J ? j 7 <br /> <br />Table 8. Regression information for estimating concentrations of major ions from measurements of specific conductance at <br />sites 1-6, White River, water years 1975-88..Continued <br /> Sample Regression data, <br />Constituent name where y = a + b (specific conductance) <br />and symbol Coefficient of <br />(y) Range Coefficients Standard error <br />Number determination <br /> (mg/L) (a) (b) (SE) (,2) <br /> SITE 3 (WATER YEARS t975-88) <br />Calcium (Ca) 297 26-70 -1.05 0.154 2.78 0.93 <br />Magnesium (Mg) 297 5.4-18 1.88 0.023 1.05 0.67 <br />Potassium (K) 297 0.4-4.3 0.90 0.001 0.48 om <br />Sodium (Na) 297 1.1-22 1.40 0.007 2.03 0.05 <br />Alkalinity (CaC03) 246 67-131 59.28 0.135 7.44 0.57 <br />Chloride (Cl) 297 0.0-12 -0.33 0.006 1.57 0.06 <br />Fluoride (F) 12 0.1-0.3 0.16 0.000 0.07 0.00 <br />Sulfate (S04) 297 16-120 -47.70 0.343 8.77 0.86 <br />Hardness (CaC03) 297 88-230 4.13 0.486 9.81 0.91 <br />Dissolved solids 11 130-281 -9.51 0.665 6.36 0.99 <br /> SITE 4 (WATER YEARS t982-88) <br />Calcium (Ca) 85 33-78 10.11 0.101 3.36 0.92 <br />Magnesium (Mg) 85 8.8-25 -2.00 0.039 1.39 0.91 <br />Potassium (K) 85 0.0-3.9 0.96 0.001 0.67 0.03 <br />Sodium (Na) 85 5.2-34 -8.92 0.052 2.26 0.87 <br />Alkalinity (CaC03) 40 87-183 48.20 0.194 9.86 0.84 <br />Chloride (Cl) 85 1.8-18 -4.62 0.026 1.59 0.77 <br />Fluoride (F) t9 0.1-0.3 0.10 0.000 0.06 0.18 <br />Sulfate (S04) 85 32-170 -55.33 0.328 7.63 0.96 <br />Hardness (CaC03) 85 120-300 17.03 0.413 11.47 0.94 <br />Dissolved solids 20 169-4t6 -6.80 0.653 7.86 0.99 <br /> <br />WATER-QUALITY CHARACTERISTICS AND LOADS 41 <br /> <br /> <br />~: <br />