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TABLE 2 (cont.) <br />Historic Summary of Water Qaulity <br />at PRS - 3, North Fork of the Purgatoire <br />River, below Golden Eagle <br /> <br /> <br />SAMPLING DATE Data <br />Entry Minimum <br />Value <br />1989 Maximum <br />Value <br />1989 Mean <br />Average <br />1989 Minimum <br />Value <br />1990 Maximum <br />Value <br />1990 Mean <br />Average <br />1990 Minimum <br />Value <br />1991 Maximum <br />Value <br />1991 Mean <br />Average <br />1991 Minimum <br />Value <br />1992 Maximum <br />Value <br />1992 Mean <br />Average <br />1992 Minimum <br />Value <br />1893 Maximum <br />Value <br />1993 Mean <br />Average <br />1993 <br />Parameter Units <br />Stag Gauge feet 1 1.88 1.32 1 1.52 1.08 0.9 2.15 1.63 0 1.6 0.5142 1.31 2.85 1.71 <br />Flow cls 23.77 26.8 25.18 - - - - - - 0 0 0 18.80 102.60 38.19 <br />pH standard 7.2 9.7 8.58 8.05 9.1 8.6 7.51 8.28 7.99 7.1 8 7.561 7.60 9.00 6.27 <br />Conductivity umhoslcm 265 640 383.66 198 515 318 175 381 236.5 182 930 332.7 135.00 510.00 280.73 <br />Temperature 'C 0 23.4 8.3 0.1 26.8 14.02 2.3 22 12.99167 34.9 73.4 50.38 3.06 15.45 9.89 <br />Dissolved Oxygen ppm 7.1 12.9 10.12 6.2 19.6 9.3 6.7 16.5 10.46 7.1 15.3 10.813 7.70 12.80 9.15 <br />Hardness mg/I 67.00 180.00 155.88 <br />Iron mg/I 0.1 0.08 0.17 0.4 0.08 <br />TSS mg/I 4 2 ii 5 2.50 <br />TDS mg/1 185 182 224 220 210.00 <br />TCS mg/l 49 59 5 70 84.00 <br />Carbonate mg/I 1 3 0.5 2.5 3.00 <br />Bicarbonate mg/I 166 160 188 260 170.00 <br />Manganese mg/I 0.03 0.03 0.03 0.04 9.00 <br />Sodium mg/I 7 7 9.9 13.5 9.00 <br />Chloride mg/1 1.2 1.6 2.7 2.89 3.00 <br />Sulfate mg/l 26 37 38 32 27.00 <br />Calcium mgll 47 48 50.2 47 44.00 <br />Magnesium mgll 8.14 9 9.6 8.6 9.00 <br />Potassium mgll 0.78 1 1.42 0.9 1.00 <br />Hydroxide mgll 0.5 <i 0.5 0.50 <br />Fluoride mg/I 0.3 0.3 0.05 0.34 0.26 <br />Lead mgll 0.025 <0.05 0.025 0.005 0.03 <br />Selenium mg/I 0.05 <0.10 0.05 0.001 0.003 <br />SAR standard 0.25 0.24 0.34 0.475 0.32 <br />• • <br />