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2 <br />Table No. 3 - Puroatoire River • <br />Date of Sampling: April 19, 1979 <br />Concentration in mg/1 <br />1 <br />Below <br />Parameter <br />Maxwell <br />Boron, ug/l <br /><30 <br />Calcium <br />41 <br />Iron <br /><0.02 <br />Magnesium <br />8.9 <br />Manganese <br /><0.01 <br />Potassium <br />1.1 <br />Silica, SiO2 <br />6.4 <br />1 Sodium <br />it <br />Total Alkalinity <br />128 <br />Bicarbonate, HCO3 <br />Chloride <br />156 . <br />2.4 <br />Specific Conductance, <br />umhos/cm <br />324 <br />Fluoride <br />0.2 <br />Hardness (EDTA) <br />120 <br />Noncarbonate Hardness <br />0 <br />Nitrate nitrogen <br />0.08 <br />pH value <br />8.2 <br />Total dissolved <br />solids @ 1800C <br />174 <br />Sulfate, 504 <br />30 <br />Sodium absorption ratio <br />0.4 <br />L <br />COMMERCIAL TESTING & ENGINEERING CO. <br />:np n,l Cool WFHrmul:,a <br />Far row P'Ot.mon <br />F464 <br />