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4 <br /> VOLATILE ORGANIC CONTAMINANTS FOUND IN GROUND WATER AT CLASS III LANDFILLS <br /> METHOD DETECTION LIMITS by U. S. EPA METHOD (in ) <br /> WATER QUALITY 601 602 624 8260 <br /> CONTAMINANT LIMIT ( ) 502.1 502.2 503.1 524.1 524.2 (8010) (8020) (8240) wide narrow. <br /> Benzene 1 [11 0.009 0.02 0.21 0.04 0.2 4.4 0.04 0.03 <br /> Bromodichloromethane 0.27;0.6 [2;41 0.002 0.02 0.08 0.10 2.2 0.08 0.03 <br /> Carbon tetrachloride 0.5 [1] 0.003 0.01 0.28 0.21 0.12 2.8 0.21 0.02 <br /> Chlorobenzene X 70 [11 0.001 0.003 0.004 0.14 0.04 0.25 0.2 6.0 0.04 0.03 <br /> Chloromethane 3 [51 0.01 0.03 0.13 0.08 0.13 0.02 <br /> 1,2-Dichlorobenzene 10 [31 0.02 0.02 1.0 0.03 0.15 0.4 0.03 0.05 <br /> 1,3-Dichlorobenzene 20 [31 0.02 0.006 0.12 0.32 0.4 0.12 0.05 <br /> 1,4-Dichlorobenzene 5;0.9 [1;21 0.007 0.006 1= 0.03 0.24 0.3 0.03 0.04 <br /> Dichlorodifluoromethane 1000 [51 0.05 0.10 1.81 0.10 0.11 <br /> 1,1-Dichloroethane 5 [11 0.002 0.07 0.17 0.04 0.07 4.7 0.04 0.03 <br /> 1,2-Dichloroethane 0.5 [11 0.002 0.03 0.35 0.06 0.03 :2.8 0.06 0.02 <br /> 1,1-Dichloroeth lene 6;0.06 [1;41 0.0030, DIM, 0. :2.8 0.05 <br /> cis-1,2-Dichloroeth lene 6 [11 0.002 0.01 0.12 0.12 0.06 <br /> trans-1,2-Dichloroeth leve 10 [1] 0.002 0.06 1.7 0.06 0.10 1.6 0.06 0.03 <br /> 1,2-Dichloro ro ane 5;0.5 [1;41 0.006 0.17 0.04 0.04 Y>> 0.04 0.02 <br /> Eth 1 benzene 29 [71 0.005 0.002 0.06 0.2 7.2 0.06 0.03 <br /> Methylene chloride 5 [6,41 0.02 0.25 0.03 0.25 2.8 0.03 0.09 <br /> 1,1,2,2-Tetrachloroethane 1 [11 0.01 0.01 0.41 0.0_4 0.03 f7, 4 0.04 0.20 <br /> Tetrachloroethylene 5;0.7 [1;41 _0.001 0.04 0.01 0.29 0.14 0.03 0.14 0.05 <br /> Toluene 42 [71 0.01 0.02 0.12 0.11 0.2 6.0 0.11 0.08 <br /> 1,1,1-Trichloroethane 200 [11 0.003 0.03 0.26 0.08 0.03 3.8 0.08 0.04 <br /> Trichloroethylene 5;3 [1;41 0.001 0.01 0.01 0.36 0.19 0.12 1.9 0.19 0.02 <br /> ,Vinyl chloride 0.5;0.015 [1;41 0.006 Q,UZIn ' 'IE-- d» 8z F „0:17' <br /> X lene s 17 [7] 0.02 0.004 0.2 0.13 0.13 0.06 <br /> Note: Method detection limits in shaded boxes exceed the most limiting water quality limits. <br /> References: [11 State of California Primary Drinking Water Standard (MCL). <br /> [21 Cal/EPA 1-in-a-million incremental cancer risk estimiate. <br /> [31 Calif. Department of Health Services "Action Level" in drinking water (taste &odor based). <br /> [41 U. S. EPA 1-in-a-million incremental cancer risk estimiate. <br /> [51 U. S. EPA Health Advisory. <br /> [61 U. S. EPA Primary Drinking Water Standard(MCL). <br /> [71 U. S. EPA Taste&Odor Threshold (54 Federal Register,No. 97, pp. 22138, 22139). <br /> ,jW August 1993 <br />