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CHAPTER 2 <br /> UST REMOVAL <br /> Sheldon Oil Company (Sheldon) contracted O.H. Materials Company (OHM) to remove <br /> a 265,000 gallon steel underground storage tank (UST) located near the southern property <br /> boundary of the Kent's Oil facility (Site) during 1990. According to the OHM 1990 report, <br /> product remaining in the UST was evacuated and the tank was removed. Upon completion of <br /> the UST removal, OHM prepared a UST removal report that indicated that the structural integrity <br /> of the UST had been compromised. Because hydrocarbons presumed to have come from the <br /> UST were identified in the soil, OHM excavated approximately 1,700 cubic yards of hydrocarbon <br /> affected soil after the UST was removed. Excavated soil was stockpiled on the western portion <br /> of the Site in an area lined with visqueen plastic sheeting and bermed with straw bails. 'The <br /> resulting excavation was approximately 60-feet long by 50-feet wide by 15-feet deep. Laboratory <br /> analysis of soil samples collected by OHM from the sidewalls and bottom of the excavation <br /> indicated that petroleum hydrocarbon affected soil was still present. <br /> w <br /> I <br /> i <br /> Use or disclosure of data contained on this sheet is subject to the restriction specified at the beginning of this dociunent. <br /> i 2r-2w93 J-,7603\R EPOR7S\KENT-OiLCLO <br /> QA{SAS2200 <br />