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V <br /> PUBLIC HEALTH SERVICES oPq� , N <br /> SAN JOAQUIN COUNTY ?• <br /> ENVIRONMENTAL HEALTH DIVISION ?� <br /> Ernest M. Fujimoto, M. D., M.P.H., Acting Health OfficL 304 E. Weber Ave., Third Floor • E O. Box 388 • Stockton, CA91j <br /> 209/468-3420 (J <br /> RAYMOND FARMER MAILED JUN 04199E <br /> 3810 FOURTEEN MILE DRIVE <br /> STOCKTON CA 95219-3809 <br /> Re : Former Toyota Town Site Code : 1 151 <br /> 610 North Hunter Street <br /> Stockton CA 95202 <br /> San Joaquin County Public Health Services, Environmental Health Division ( PHS/EHD ) has <br /> completed review of information regarding the former underground storage tanks that were <br /> located at 610 North Hunter. A summary of the analytical results obtained from the soil <br /> samples collected to date has been included as attachment for your reference . PHS/EHD <br /> has the following comments for your consideration . <br /> Significant soil contamination was evidenced at the time of tank removal in November <br /> 1987 . Subsequently, an over-excavation was attempted and contaminated soil removed to <br /> approximately 22 feet below grade . Soil samples were collected on January 21 , 1988 that <br /> continued to evidence contamination . The stockpiled soil was reportedly disposed at <br /> Forward Inc . by Falcon Energy. <br /> A soil investigation will be necessary to determine the extent of residual soil <br /> contamination . The seasonal high depth to groundwater in the area of the site is <br /> approximately 30 feet below grade ( San Joaquin County Flood Control Map 1986) ; <br /> therefore , a groundwater investigation will also be required . <br /> Please submit by August 15 , 1996 a work plan to complete the soil/groundwater <br /> investigation necessary to evaluate the threat/impact to groundwater. If you have any <br /> questions or require further information, please contact me at (209 ) 468-0337 . <br /> Donna Heran, Director, REHS <br /> Environmental Health Division <br /> V <br /> Mary Meays , Senior EHS Margaret agono, REHS <br /> Site Mitigation Unit Lead Senior <br /> enclosure <br /> cc : Elizabeth Thayer, Central Valley Regional Water Quality Control Board <br /> A Division of San Joaquin County Health Care Services <br />