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9038OB-t CON-1 <br /> Table 4.3-2 RESULTS OF IRRIGATION WATER QUALITY ANALYSES AT <br /> DEFENSE DISTRIBUTION REGION WEST TRACY <br /> Concentration Detected <br /> in Monitoring Wells <br /> LM 72 LM 60 LM 56 <br /> Screened Screened Screened <br /> Parameters Units (21.5-31.5) (80-100) (120-140) <br /> Alkalinity, Bicarb. mg/l 290 162 144 <br /> as CaCO3 <br /> Alkalinity, Carb. mg/1 NO ND ND <br /> as CaCO3 <br /> Chloride mg/l 260 280 172 <br /> Fluoride mg/1 0.2 0.2 0.2 <br /> Nitrate as N mg/l 13 8. 1 8. 1 <br /> Nitrite as N mg/l NO NO ND <br /> Orthophosphate as P mg/l NO ND ND <br /> Sulfate mg/l 220 140 140 <br /> Total Dissolved Solids mg/l 1350 960 620 <br /> Boron mg/1 1.8 1.3 1. 1 <br /> Calcium mg/l 184 116 80 <br /> Iron mg/l 5.6 1.9 1. 1 <br /> Magnesium mg/l 48 48 28 <br /> Manganese mg/1 0.082 0.022 0.011 <br /> Potassium mg/l NO NO ND <br /> Sodium mg/l 138 100 88 <br /> Screened (interval ) = feet below ground surface <br /> 4-164 <br />