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Project 113-13 March 30, 1993 bailer was washed in detergent and rinsed twice in tap water All purge water andgeJ 40 equipment wash water was placed in 55 gallon steel drums and re mains on-site When the drums are full, disposal options will be determined and documented in future reports A copy of the Water Sample Data Forms are attached to this report The samples were analyzed for TPH-gasoline, and BTEX using EPA Methods 8015 and 8020, respectively, and for TPH diesel (modified EPA Method 8015 and 3550), Ethylene Dibromide (EPA Method 601 or 8010), and Lead EPA Methods 3010/6010) A copy of the laboratory reports and Chain of Custody form are attached to this report. Table 2a Cheaper Store #76 890 North Main Street, Manteca, California Groundwater Sample Analysis Results* TPH-g and BTEX Samples Collected on March 17, 1993 Sam le # Tl:)H-rr Benzene Toluene Ethyl Benzene Xylenes MW-1 ND < 50 ND <0.5 ND <05 MW-2 ND <0.5 1 2 ND < 50 ND <05 ND <0 5 ND <05 11 MW-3 ND < 50 ND <0 5ND <05 ND <0 5 ND <0 5 MW-4 ' ND < 50 ND <a 5 12 ND <0 5 0.96 * Sample results are in ug/L or parts per billion Table 2b Cheaper Store #76 890 North Main Street, Manteca, California Groundwater Sample Analysis Results* TPH-d, EDB and Lead Samples Collected on March 17, 1993 ample # TPH-d Ethylene Dibromide Lead MW-1 ND < 50 MW-2 ND < Oa ND < 10 ND ND < a5 ND < 10 MW-3 ND < 50 ND < 05 MW-4 _ND < 50 ND < 10 ND < 05 ND < 10 * Sample results are in ug/L or parts per billion The sample analyses show detectable amounts of Toluene in MW-4, and detectable amounts of Xylenes in MW-1, MW-2 and BIW-4 TPH-g, TPH-d, Benzene Ethylbenzene Ethylene Dibromide and Lead were not detected Parker Environmental Services 4185 Rialto Court Pittsburg CA 94565-6116 Phone (510) 439-1024 Fax (5I0) 439-2566