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C Donald Peterson *' <br /> Former Reeve's Exxon <br /> Page 3 of 3 <br /> the extent of the soil contamination.-Please include in the workplan, due at EHD before December 1, <br /> 2006, a proposal to complete this requirement. <br /> Soil borings advanced in 1994 and 1997 provided laboratory data that demonstrate elevated <br /> concentrations of TPHg were present below the side walk area north of the site, just down gradient <br /> of the former fuel USTs. The TPHg, as well as BTEX constituents detected, have not been laterally <br /> or vertically delineated. Further-investigation north of the site is needed. The work plan due at EHD <br /> before December 1, 2006 is to address this directive and those given above. Please take all <br /> necessary steps now to obtain a City of Tracy encroachment permit to install soil borings north of <br /> Grant Line Road. <br /> Please continue to sample the existing monitoring wells at this site on a quarterly basis and to <br /> electronically upload to Geotracker the EDF, Geo—Well and Geo—Report submittals. Please submit l <br /> hard copies of report text, figures and pertinent data tables to the EHD for review; submittal of field <br /> notes and laboratory reports as part.of the complete reports to Geotracker is sufficient. Laboratory <br /> analysis for 1,2-DCA and EDB by EPA Method 82608 are required for this site. Please include these <br /> analytes in the next monitoring well'ground water sampling event, Fourth Quarter—2006. <br /> You may phone Michael Infurna.at(209)468-3454 should you have any questions or wish to discuss <br /> the site. Mr. Infurna can also be reached by electronic mail at minfurnaa-),sicehd.com. <br /> Donna Heran, REHS, Director <br /> Environmental Health Department. <br /> Michael J. Infur a Jr., Senior REHS' Nuel C. Henderson Jr., PG <br /> Site Mitigation Unit IV/LOP Engineering Geologist <br /> LOPISite Mitigation Unit IV <br /> Mil <br /> c: Ground Zero Analysis Inc.- 1714 Main St, Escalon. 95320-1927 <br /> c: CVRWQCB—James Barton; Sacramento <br /> c: SWRCB-CUF—Mark Owens, Sacramento <br /> y <br /> I� <br /> - i r <br />