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• TABLE G9 <br />GROUND WATER QUALITY COMPARED TO DRINKING WATER STANDARDS <br />Analyzed Drinking Water Standa rds Dowe Flats Water~ uality <br />Parameter Concentration Concentration' <br />turbidity TTU(5) 1500, 210, 980 9000NTU6 <br />arsenic .OS U' U U U <br />cadmium .010 0.009 U U U <br />Chromium .OS U U U U <br />lead .OS 0.008 0.01 0.005 U <br />nitrate as N 10.0-20.0 0.43 0.1 5.1 0.12 <br />mercury .002 U U 0.003 0.0005 <br />sodium M° 29.0 13.0 110 27.0 <br />Benzene .005 1J U U U <br />Carbon Tetrachloride .005 U U U U <br />1,1-Dichlorcethene .007 U U U U <br />1,2-Dichlorcethane .005 U U U U <br />1,1,1-Trichlorcethane 0.200 U U U U <br />Trichlorcethene 0.005 U U U U <br />Vinyl chloride 0.002 U U U U <br />• <br />Toluene LURE 1BJ6 2BJ U 1BJ <br />TTHM3 0.10 <br />hazdness M <br />pH M 7.20 7.54 6.90 7.30 <br /> 7.35 7.57 7.05 7.45 <br />calcium M 94.0 58.0 470.0 100.0 <br /> 140.0 78.0 560.0 140.0 <br />alkalinity M 208 185 240 226 <br /> 1541 299 360 6100 <br />temperature M <br />1. Concentration: Height concentration recorded per quarter of highest and lowest <br />concentration recorded. <br />2. LUR: listed unregulated report detection <br />3. TTHM: trihalomethanes sum of bromodichloromethane, dibromochloromethane, <br />dibromethane (bromoform) and trichloromethane <br />4. M: monitoring test and submit analysis <br />5. TU: turbidity unit <br />6. BJ: Analyte detected in blank <br />7. U: not detected <br />• Parameters Not Analyzed: coliform, Langelier Index (LI), and Radioactivity <br />