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ISO <br /> t Kenned*J&A*Chftm <br /> Mr. Tom Terrill <br /> Reynolds and Brown <br /> 26 January 1987 <br /> Page Seven <br /> in soil samples were well below the ambient level goal of <br /> 1000 ug/Kg (parts per billion) for toluene in soil estab- <br /> lished by the U.S. Environmental Protection Agency. Because <br /> toluene was not found in groundwater, it does not appear <br /> that significant transport of toluene to groundwater has <br /> occurred. <br /> 5) Based on the information obtained by this investigation, it <br /> is our opinion that no remediation of undisturbed soil or <br /> groundwater is warranted during removal of the tanks. We <br /> recommend that material surrounding the tanks be monitored <br /> for petroleum product content during tank removal by visual <br /> observation or by a portable organic vapor monitor. All <br /> soil found to contain product by this monitoring should be <br /> removed, stockpiled in segregated areas, and covered pending <br /> appropriate disposal. <br /> Monitor well MWl should be abandoned when the underground <br /> storage tanks are removed. . .Well abandonment should satisfy <br /> the requirements of the San Joaquin Local Health District. <br /> These call for. either removal of the well , casing and grout <br /> L emplacement at the bottom of the borehole, or it this is not <br /> possible, mechanical perforation of the well casing and <br /> pressure injection of grout. <br /> Please contact me if you have any questions or comments regard- <br /> ing this report. <br /> LVery truly yours, <br /> K�EINNEDY/JENKS/CH I LTON <br /> Noel M. Lerner <br /> Project Manager <br /> NML:amp <br /> Attachments: Figures 1 <br /> Tables 1. 1, 1.2 <br /> A) NorCal Geophysical Consultants Ground Penetrat <br /> ing Radar Survey Report. <br /> B) Boring Logs <br /> C) Laboratory Analysis Reports <br />