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R•r <br /> r- -_ <br /> � Page 2, City of Tracy <br /> 3900 HoIN Drive- Wastewater Treatment Plant; this was the.sito 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 preliminaryinvestigation reported contamination in <br /> both soil and grab groundwater samples. The City.of Tracy will submit a workplan 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 5._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 i <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; REHS, Director <br /> Environmental Health Department <br /> YY <br /> G <br /> Lori Duncan, Senior REHS Margare Lagorio, REHS I. <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 /> i <br />