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Pn <br /> Page 2, City of Tracy <br /> 3900 Holly Drive-Wastewater Treatment Plant; this was the site of a former diesel tank used to <br /> power a generator. The preliminary investigation reported total petroleum hydrocarbon as <br /> diesel (TPHd) contamination in each of four grab groundwater samples, but all soil samples <br /> were reported non-detect. A work plan for a second Geoprobe investigation will we submitted to <br /> confirm, and/or document declining trends in, the contaminant concentrations in groundwater. <br /> 560 Tracy Blvd- Boyd Service Center; three UST's were removed from this site, one contained <br /> diesel fuel, two contained gasoline. The preliminary investigation reported contamination in <br /> both soil and grab groundwater samples. The City,of Tracy will submit a work plan to install <br /> additional borings and groundwater monitoring wells-needed to confirm the initial reported <br /> contamination. This site is located near a former bulk oil storage facility, therefore analysis <br /> should be limited to TPH as gasoline, TPHd, benzene, toluene, ethylbenzene, xylenes, ethylene <br /> dibromide, 1,2-dichloroethane and fuel oxygenates. <br /> 29633 S. Tracy Blvd- Tracy Municipal Airport; two UST's were removed from this site in 1998. <br /> Soil samples collected from the bottom of the tank excavation were reported non-detect for all <br /> constituents analyzed. However, contamination was reported in one piping line sample and <br /> several stockpile samples, and the stockpile was subsequently returned to the tank excavation. <br /> The City of Tracy will submit a work plan to conduct an initial site investigation to collect <br /> confirmation soil samples near the piping sample and in the former tank excavation. <br /> The City of Tracy agreed to submit the work plans within 60 days from the date of the meeting. <br /> Funds to conduct the required investigations will be appropriated in the next fiscal budget, July <br /> 2008, and field work will begin in.August 2008. <br /> If you have any questions, comments or additions to the above meeting summary.please call <br /> Lori Duncan at(209)468-0337. <br /> Donna Heran, RENS, Director <br /> Environmental Health Department <br /> Lori Duncan, Senior REHS Mar Lagorio, REHS <br /> LOP/Site Mitigation Unit IV Program Coordinator, Unit IV <br /> cc: Jim Barton, CVRWQCB <br /> John Lynch, Wright Environmental <br /> Rosaia, D + NC trs, etal., PO Box 274 Tracy.95378 <br />