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II ' ., I I I I I I I I I I I I I I I I I I Table 4. Chemical Analvses of Water from Hav Gulch Alluvium bv Colorado Department of Health Upper 11m! t CDH CDH Characteristics for sample sample or constituents publ~9upplYY No. 157"Y No,216Y Turbidity 5 units 1.1 8.1 Color (Cobalt Scale) 15 units 0 5 Threshold Odor Number 3 0,05 mg/1 Arsenic (As) 0.01 mg/1 recommended 0 mg/1 0 "g/l Cadmium (Cd) 0,01 mg/1 0 mg/l 0 mg/1 Chromium (Cr+6) 0.05 mg/l 0 mg/1 0 mg/1 Fluoride (F) 2,4 mg/l 1.2 mg/1 0,3 mg/l Lead, (Pb) 0,05 mg/l 0 mg/l 0.02 mg/l Selenium (Se) 0.01 mg/l 0 mg/l 0.003 "g/l Barium (Bs) 1.0 mg/l mg/l mg/l 0.2 mg/l Cyanide (CN) 0.01 mg/1 recommended mg/l "g/l Gross Alpha Activity - uuc/l 10.4 t 9,4 none detected Gross Beta Activity - uuc/l IFB none detected Radium 226 uuc/l 0,39 t 0,13 Silica - Si02 21 18 mg/l Molybdenum 0 Silver 0 Total Hardness 145 mg/l 120 mg/l Calcium (Ca)(ss CaC03) 99 mg/l 95 mg/l Magnesium (mg) 125 "g/l 11 mg/l 7 mg/1 Phenolphthalein Alkalinity 0 mg/l 0 mg,!l Total Alkalinity 164 mg/l 130 mg/l Total Solids 500 mg/l 217 mg/l 170 mg/l Specific Conductance 375 m1cromhos 290 micromhos Sodium (Na) 20 mg/1 13 mg/1 Methylene Blue Active SurfactaDts 0 mg/1 0 mg/1 Copper (Cu) 1.0 mg/l 0 mg/1 0 mg/1 Zinc (Zn) 5.0 mg/1 0 mg/l 0.5 mg/1 Iron (Fe) 0.3 mg/l 0.10 mg/l 1.1 mg/l Manganese (Mn) 0.05 mg/1 0,10 mg/l 0 mg/1 Chloride (Cl) 250 mg/1 4 mg/l 4 mg/1 Nitrate (N03) 45 mg/1 6,0 "g/l 3 mg/1 Sulphate (S04) 250 mg/l 17 mg/1 13 mg/1 Phosphate (P04) 0,25 mg/1 0 mg/1 Ammonia (Nfl 3) 0 mg/1 0,2 mg/1 Boron (B) 0 mg/l 0 mg/1 liThe limits for the first 11 characteristics/constituents are mandatory; the others are recommended limits set forth by the Colorado Department of Health for public water supplies. 11Sample drawn from existing stock well in the NW 1/4. SW 1/4, Sec. 8. T3N, R61W on Aug. 6, 1971, lISample drawn from newly drilled irrigation well in the SW 1/4. HE 1/4. Sec. S. T3N, R61W, on July 16, 1975, - 11 -