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i PUBLIC SER <br /> DICES E <br /> . • �i PgU(N. <br /> SAN JOAQUIN COUNTY <br /> ENVIRONMENTAL HEALTH DIVISION r. <br /> Q: a <br /> Ernest M. Fujimoto, M. D., M.P.H., Acting Health Officer <br />{ 304 E. Weber Ave., Third Floor • P. O. Box 388 • Stockton, CA 9501-0008 <br />' 209/468-3420 VE{ <br /> BRETT HUNTER AUG 2 6 19,06 <br /> CHEVRON USA INC <br /> P O BOX 5004 h <br /> SAN RAMON CA 94583-0804 Ill <br /> tl J <br /> RE: Chevron Service Station #9-1918 SITE CODE: x1138 <br /> 45 East Harding Way <br /> Pursuant to your telephone request to evaluate the status of the site, PHS/EHD has prepared <br /> the following comments for your consideration. <br /> i <br /> Due to recent changes in the depth to water at the site, the monitoring capabilities have been <br /> enhanced with the addition of the older monitoring wells which had previously not contained <br /> sufficient water to sample. The initial groundwater results from samples collected on April 30, <br /> 1996 indicated groundwater contamination had been significantly reduced, possibly as a <br /> result of the unsaturated conditions and enhanced aeration of the residual soil contamination. <br /> Also, confirmatory groundwater samples were collected on August 1, 1996. I <br /> Please submit 10 copies of a closure summary report which includes all soil and groundwater <br /> results obtained at the site, including the August 1, 1996 analytical results and which contains <br /> the information outlined in the:Central Valley Regional Water Quality Control Board's i <br /> Appendix B. 1 <br /> If you have any questions, do not hesitate to contact Mary Meays at (209) 468-0337. <br /> Donna Heran, RENS, Director <br /> Environmental Health Division i <br /> y -AaA <br /> Mary Meays, Senior REHS Margar&t Lagorio, RE i <br /> Site Mitigation Unit Supervisor <br /> MM\45HARD <br /> "1 <br /> cc: Elizabeth Thayer, CVRWQCB <br /> I <br /> J <br /> j <br /> i <br /> A Division of San Joaquin County Health Care Services I <br /> i <br />