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PUBLIC 'REALTH SERVICES Q�,N <br /> SAN JOAQUIN COUNTY <br /> ENVIRONMENTAL HEALTH DIVISION H :� <br /> Ernest M. Fujimoto, M. D., M.P.H., Acting Health Officer <br /> 304 E. Weber Ave., Third Floor • P. O. Box 388 Stockton, CAua <br /> 2091468-3420 <br /> GERALD SPERRY AUG 0 11996, <br /> THE JOHN PESTANA QTIP TRUST <br /> 1818 GRAND CANAL BLVD <br /> STOCKTON CA 95207 <br /> RE: Reeve's Exxon (former) SITE CODE: 1397 <br /> 2360 East St <br /> Tracy, Ca 95736 <br /> Steve's Rental SITE CODE: 2435 <br /> 275 E. Grantline <br /> Tracy, Ca 95736 <br /> San Joaquin County Public Health Services, Environmental Health Division (PHS-EHD) <br /> has reviewed the Quarterly Summary Reports recently submitted by Ground Zero <br /> Analysis, Inc., and has the following comments. <br /> With recent recommendations for sites that pose little or no risk to be closed or not <br /> required to conduct any further investigations, PHS-EHD has some recommendations <br /> that may allow these sites to qualify for evaluation for "No Further Action". <br /> It has been over a year since consecutive quarterly reports have been received for <br /> these sites. One of the analytes of concern at Steve's rentals was the oil and grease <br /> found in the soil. In order to better evaluate the groundwater after the over-excavation <br /> and the long period between consecutive groundwater sampling, oil and grease should <br /> be analyzed in the groundwater as well as a new constituent of concern, Methyl Tertiary <br /> Butyl Ether (MTBE). <br /> Low levels of petroleum still exist in the groundwater at Reeve's Exxon. MTBE should <br /> also be analyzed for in the next groundwater sampling event for this site, as well as <br /> TPH as Gasoline and BTEX. <br /> After two consecutive sampling events, for all constituents of concern have been <br /> performed and accepted by PHS-EHD, a closure summary report should be submitted <br /> to PHS-EHD for review. Please follow the Central Valley Regional Water Quality <br /> Control Board's Appendix B format for the closure report. <br /> A Division of San Joaquin County Health Care Services <br />