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s <br /> 1 ' <br /> Table No. 4 - Purgatoire River <br /> Date of Sampling: April 19, 1979 <br /> Concentration in mg/l <br /> Above lest <br /> Parameter Portal Allen <br /> Boron, ug/l 80 <br /> Calcium 33 <br /> Iron <0.02 <br /> Magnesium 5.5 <br /> Manganese <0.01 <br /> 1 Potassium 1.0 <br /> Silica, SiO2 6.4 <br /> Sodium 4.6 <br /> Total Alkalinity 100 <br /> Bicarbonate, HCO3 122 <br /> Chloride 1.9 <br /> Specific Conductance <br /> umhos/cm 256 <br /> Fluoride 0.2 <br /> Hardness (EDTA) 95 <br /> Noncarbonate Hardness 0 <br /> Nitrate nitrogen 0.08 <br /> pH value 8.1 <br /> Total dissolved <br /> solids @ 1800C 126 <br /> Sulfate, SO 22 <br /> Sodium absorption ratio 0.2 <br /> COMMERCIAL TESTING & ENGINEERING CO. <br /> Cnq'nal Coot/Watermarked �. <br />