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PUBLIC HEALTH SERVICES O•.A�u�N•.0 <br /> SAN JOAQUIN COUNTY <br /> ENVIRONMENTAL HEALTH DMSION ` <br /> Karen Furst, M.D., M.P.H., Health Officer <br /> 304 East Weber Avenue, Third Floor • Stockton, CA 95202 <br /> 209/468-3420 FILE C <br /> TINA MAYHEW <br /> WEST CLAY PROPERTIES <br /> PO BOX 6152 FEB 0 4 1999 <br /> STOCKTON CA 95206 <br /> RE: West Clay Properties Site Code: 1065 <br /> 639 West Clay Street <br /> Stockton, California <br /> On December 29, 1998, three underground storage tanks (USTs) were removed from <br /> the above referenced site. Soil from the north end of the excavation at 14 feet below <br /> surface grade (bsg) and the stockpiles exhibited odor and discoloration. The highest <br /> concentration in analytical results of the soil samples were Sample I.D. "TK2 North" at <br /> 988 parts per million (ppm) Total Petroleum Hydrocarbon as Gasoline, 0.08 ppm <br /> Benzene, 1.20 ppm Toluene, 4.20 ppm Ethyl-Benzene, and 5.80 ppm Xylenes. <br /> Analytical results also indicated the presence of lead at concentrations ranging from 15 <br /> to 39 ppm in all soil samples with the exception of"TK1 North" and "TK1 South". <br /> The above referenced site is currently assigned to the San Joaquin County Public <br /> Health Services, Environmental Health Division (PHS/EHD) UST Local Oversight <br /> Program (LOP), Site Code 1065, for oversight of assessment and clean up activities at <br /> contaminated underground tank sites. This new area of concern as a result of the UST <br /> removal on December 29, 1998 has been added to the existing LOP case. <br /> Submit a work plan to PHS/EHD to investigate the lateral and vertical extent of the <br /> contamination by May 3, 1999. <br /> If you have any questions, please feel free to contact Jeffrey Wong at (209) 468-0335. <br /> Donna Heran, REHS, Director <br /> Environmental Health Division <br /> Jeffrey Wong , REHS Margaret agorio, RENS <br /> LOP/Site Mitigation Unit IV Supervisor <br /> c: RWQCB, Central Valley Region - Mark List <br /> c: Advanced GeoEnvironmental, Inc. - Kevin McKibben <br /> A Division of San Joaquin Counry Health Care Services <br />