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F <br /> PUBLIC HEALTH SERVICES <br /> SAN JOAQUIN COUNTY <br /> JOGI KHANNA M.D,b11H. < <br /> Health Officer <br /> P.O. Box 2009 • (1601 East Hazelton Avenue) • Stockton, California 95201 c'OcfFg it <br /> (209) 468-3400 <br /> CLINT ROGERS <br /> CHEVRON USA INC <br /> 2410 CAMINO RAMON <br /> SAN RAMON CA 94583Copy <br /> MAR 10 1992 <br /> RE: Chevron Service Station #9-1918 SITE CODE: 1138 <br /> 45 East Harding Way <br /> Stockton CA 95204 <br /> San Joaquin County Public Health Services Environmental Health Division (PHS/EHD) has completed <br /> review of the submittal entitled 'Work Plan for Soil and Groundwater Assessmene prepared by <br /> Groundwater Technology dated January 8, 1992. PHS/EHD comments follow. <br /> PHS/EHD agrees that additional soil and groundwater investigation is necessary to define the extent of <br /> contamination and to establish the groundwater gradient. The work plan proposed five soil borings to <br /> be completed as a vapor extraction well and as monitoring wells. <br /> Fieldwork may begin upon receipt and issuance of drilling permits, applicable fees and access <br /> agreements. Four PHS/EHD drilling permits are necessary for the proposed work: <br /> one permit for the proposed on-site boring, vapor extraction well, <br /> one permit for the proposed off-site monitoring well to the north of the site, <br /> one permit for the proposed two off-site monitoring well to the east of the site, and <br /> one permit for the proposed off-site monitoring well to the south of the site. <br /> Please include in the next quarterly report a list of all reports which have been generated for this site. <br /> If you have any questions or would like to discuss the site, please contact Mary Meays, REHS, of my staff <br /> at (209) 468-0337. <br /> Jogi Khanna, M.D., M.P.H. <br /> Health Offic <br /> une A. Cotulla, REHS, Program Manager <br /> Environmental Health Division <br /> LAC/MM/45EHARD <br /> c: Elizabeth Thayer, CVRWQCB <br /> c: Richard Blewett <br /> c: Geoffrey Bain <br /> C'. John Borkovich, GTI <br /> c: Doug Oram EA Enginering <br /> A Divmsinn of San Jmquin Counry Heal[h fare Semces <br /> l <br />