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TABLE III-E-1 <br /> GROUND WATER QUALITY DATA, COAL CREEK ALLUVIUM <br /> Well location: SCO1008911CCB <br /> Geologic unit : alluvium <br /> Date of sample : 4/25/75 <br /> Dissolved silica (SiO2) mg/1 5 . 9 <br /> Dissolved iron (Fe) mg/1 3 . 40 <br /> Dissolved manganese (Mn) mg/1 1 .40 <br /> Dissolved calcium (Ca) mg/1 59 <br /> Dissolved magnesium (Mg) mg/1 20 <br /> Dissolved sodium (Na) mg/l 37 <br /> Dissolved potassium (k) mg/1 1 .4 <br /> Bicarbonate (HCO ) mg/1 309 <br /> Alkalinity as Ca�O mg/1 253 <br /> Dissolved sulfate �SO ) mg/1 66 <br /> Dissolved chloride (Ci) mg/1 4 .1 <br /> Dissolved fluoride (F) mg/1 . 2 <br /> Dissolved nitrite plus nitrate (N) mg/l .05 <br /> Dissolved orthophosphate (PO 4) mg/l . 09 <br /> Dissolved solids (sum of constituents) mg/l 347 <br /> Hardness (Ca ,Mg) mg/1 230 <br /> Sodium absorption ratio 1 . 1 <br /> Specific conductance micromhos 550 <br /> pH units 7 . 6 <br /> Temperature °C 7 . 0 <br /> Dissolved arsenic (As) mg/1 0 <br /> Dissolved selenium Se) mg/1 0 <br /> 8 <br />