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INTRODUCTION <br />American Environmental Management Corporation (AEMC) has been retained by <br />Beck Development to clean up diesel contaminated soil at 120 Winters Drive, a <br />housing development site in Manteca, California. Refer to Figure 1 for site <br />location. <br />Background <br />In May 1989, children from a nearby community cut a fuel line hose on an above- <br />ground diesel tank at the Daniels Estates construction site in Manteca, California. <br />An estimated 200 gallons of diesel fuel spilled and covered an area of approximately <br />15 feet by 12 feet. Refer to Figure 2 for site plan. On 31 May 1989, an initial site <br />investigation was performed by James F. Frumm, R.G., R.E.A. of AEMC. <br />Clean-up <br />On 23 June 1989, an AEMC geologist supervised the excavation of the <br />contaminated soil into polyethylene lined disposal bins. The backhoe operator <br />excavated to approximately 3 feet below grade an area 16 feet by 9 feet. <br />Charles Hunt from San Joaquin Local Health District (SJLHD) was onsite to verify <br />sampling from the bottom of the excavation and sampling from the two disposal <br />bins. Two samples were taken from the bottom of the excavation, one on the north <br />side (CS4A-N) and one on the south side (CS-2A-S). Two samples were also taken <br />of the soil in the disposal bins to characterize the contaminated soil for disposal <br />purposes. <br />Samples were taken in 6-inch brass tubes, hand driven, and capped with Teflon, <br />plastic end caps and sealed with electrical tape. The four samples were stored on <br />ice for transport to AEMCs analytical laboratory (State Certification No. 210) <br />under chain-of-custody. Each sample was analyzed for benzene, toluene, xylene and <br />ethylbenzene (BTXE) and Total Petroleum Hydrocarbons Diesel Fraction <br />(TPH-D). Appendix A contains the lab analyses and they are snmmarized below: