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Cheaper#76,890 N Main St.,Manteca,Cahforiva <br /> December 22,1995 <br /> Page 11 <br /> . March MW-3 TEX 0 66, 0 55,2.1 <br /> June MW-3 1,1-Dichloroethane 36 <br /> September MW-3 Lead 15 <br /> September MW-3 Chromium 85 <br /> September MW-3 Nickel 93 <br /> September MW-3 Zmc 160 <br /> December MW-1 Xylene ass <br /> The California Department of Health Services has established MCLS <br /> (Maximum Contaminant Levels) for benzene, ethylbenzene, and xylenes. The <br /> U.S. EPA has established primary and secondary levels for BTEX. These are <br /> provided for comparison purposes only. <br /> Table 2 <br /> Selected Regulatory Action Levels <br /> Category TPH-g Benzene Toluene Ethylbenzene Xylenes <br /> DOHS MCL N A 1 N A 680 1,750 <br /> US EPA Primary NA 5 1,000 700 10,000 <br /> US EPA Secondary NA NA 40 30 20 <br /> May,1993, update TPH and BTEX are m ppb orµg/L NA = Not Applicable Concentrations <br /> above the action levels are in boldface <br /> • <br /> Parker Environmental Services, 190 East 7th Street, Pittsburg, CA 94565-2317 <br /> Pbone (510) 439-1024 Fax (510) 439-2566 <br />