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PUBLIC`HEALTH SER"! CES �'QurM.•� <br /> SAN JOAQUIN COUNTY <br /> ENVIRONMENTAL HEALTH DIVISION <br /> Ernest M. Fujimoto, M.D., M.P.H., Acting Health Officer <br /> 445 N. Sail Joaquin Street • P.O. Box 388 + Stockton, CA 95201-0388 cifiaa <br /> (209) 468-3420 t <br /> F MAR 0 <br /> TOWN & COUNTRY CHEVRON <br /> 2801 GREENWICH STREET 5.._ <br /> SAN FRANCISCO CA 91423 <br /> SITE CODE: 1621 <br /> RE: TOWN & COUNTRY CHEVRON <br /> 13336 HWY 88 <br /> LOCTCEFORD CA 95237 <br /> San Joaquin County Public Health Services, Environmental Health. Division <br /> (PHS/EHD) has recently reviewed the analytical results of the soil and/or <br /> water samples taken from beneath the underground 'storage tank(s) that were/was <br /> removed from this site on 7/29/91. <br /> The presence of contaminants at your facility exceed �he allowable limits of <br /> leaching potential as recommended by the LUFT Manual . The former <br /> underground storage tank(s) (UST) cannot be recommended for final closure <br /> without further investigation to determine the full extent of the soil and/or <br /> groundwater problem. <br /> F „ <br /> PHS/EHD is providing you notification that an "Underground Storage Tank j <br /> Unauthorized Release (Leak)/Contaminated Site Report" has been filed pursuant I <br /> to Section 25295 of the Health and Safety Code (HSC) . The appropriate <br /> disclosure of a hazardous waste discharge pursuaAi to Section 25180.7 of the <br /> Health and Safety Code has been made, and the site has been placed on the list <br /> of contaminated sites in San Joaquin County which^„is maintained by PHS/EHD. <br /> PHS/EHD has been designated by the State of California Water Resources Control <br /> Board (SWRCB) as the local agency overseeing the)investigati.on of leaking <br /> USTs. Pursuant to Section 25299.37 (HSC), "discrgers” must take corrective <br /> Yia <br /> action in response to the unauthorized release. <br /> Please be advised that PHS/EHD will be utili.zing,Ithe SWRCB "Prioritization <br /> System for Leaking Underground Storage Tank Sites" ranking list in order to <br /> prioritize all the contaminated sites. The "Prioritization System" has <br /> established criteria to distinguish between High' Priority Sites, Moderate <br /> Priority Sites, and Low Priority Sites. Site specific conditions which <br /> influence the placement within the ranking system;iare, for example, depth to <br /> groundwater, proximity to a drinking water sourc'e� (municipal or domestic <br /> well), the extent of soil contamination, and the site's clean up funding <br /> availability. <br /> Based upon the priority ranking, you will be directed to begin the required <br /> investigation. However, given the conditions for� the prioritization, wherever <br /> possible PHS/ESD will work with 'you to coincide enforcement directives in <br /> conjunction with 'secured clean up funding. If you have any questions, contact <br /> the PHS/EHD Site Mitigation Unit for further information at (209) 468-3450. <br /> If your tank removal was recent and you are not ;planning any remedial <br /> activities within 90 days, the tank excavation should be closed. It has been <br /> our experience that open tank excavations allow ',lfor rapid downward migration <br /> of contaminants. . Contact the appropriate building department for specific <br /> requirements that may be necessary prior to filling with pea gravel and/or <br /> compacting the tank excavation with clean fill Boil. <br /> Before receiving a PHS/EHD corrective action directive and in order to receive <br /> -- A i)ivision of San Joaquin County Health Care'Serviees_ <br />