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VM L <br /> DEC 11,2 <br /> EN 0 00 <br /> T HE <br /> NMEN <br /> t December 8, 2000 P ALT . <br /> ERN1iT/SERVICES <br /> Ms. Carol Oz 41.03014214 <br /> ' San Joaquin County -Public Health Services 06-a1 <br /> Environmental Health Division <br /> 304 East Weber Avenue, Third Floor <br /> Stockton, California 95201-0388 <br /> Reference: Appendix B Documentation for No FurtherAction at the <br /> California Highway'Patrol Facility Located at <br /> 3330 North Ad Art Road in Stockton, California <br /> RESD Work Order No. CHP702 <br /> URSGWC Project No. 41.03014214.03.03000 <br /> Dear Ms. Oz: <br /> f <br /> URS Corporation(URS),on behalf of the State of California—Real Estate Services Division(RESD),is <br /> leased to resent the information requested in our letter dated Se tember 15,2000. The information is being <br /> P p � Y P <br /> w provided to complete the request for no further action of the Califoinia Highway Patrol(CHP)facility located <br /> at 3330 North Ad Art Road in Stockton, California (Site). <br /> CLOSURE SUMMARY <br /> hr <br /> A soil investigation was conducted at the Site by Alton Geosciences in March 1999 to comply with <br /> underground storage tank(UST)upgrading requirements. The investigation included drilling and sampling four <br /> soil borings.(shown on Figure 1). The borings were extended to approximately 25 feet below ground surface <br /> E (bgs). One soil sample was collected at 25 feet bgs from each boring and'submitted for laboratory analyses <br /> of total petroleum hydrocarbons as gasoline(TPH-G);.benzene,toluene,ethylbenzene,and xylenes(BTEX); <br /> and methyl tertiary butyl ether(MTBE). The analytical results,shown on Table 1,reported concentrations of <br /> MTBE in two soil samples(B2 and B4)at concentrations of 0.008 and 0.007 milligrams perkilogram. TPH-G <br /> j and BTEX were not detected in any of the four samples. Based on these analytical results,the San Joaquin <br /> t <br /> County Environmental Health Division(SJCEHD)requested that a soil and groundwater investigation be <br /> conducted at the Site. The workplan was submitted to SJCEHD on March'13, 2000 and approved by <br /> SJCEHD on March 31,2000. Fieldwork was delayed so the UST could be removed from the Site. The UST <br /> was removed by SEMCO on May 25,2000. Analytical results for soil samples collected following the UST <br /> removal were non-detect. <br /> URS Corporation <br /> 2520 Venture Oaks Way,Suite 250 <br /> Sacramento, CA 95833-3200 <br /> I Tel: 916.929.2346 <br /> 1 Fax: 936.929.7263 <br /> 1:114214103_Stockton1L120800.wpd <br /> i <br />