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!� T <br /> PUBLI&HEALTH SERVfCES' <br /> SAN .IOAQUIN COUNTY <br /> ENVIRONMENTAL HEALTH DIVISION R _ ' <br /> Ernest M. Fujimoto, M.D., M.P.H., Acting Health Officer :r <br /> 445 N. San Joaquin Street • P.O. Box 388 • Stockton, CA 95201.0388c4tiici6W �T <br /> (209) 468-3420 ' <br /> John Graf f igna _ <br /> 5221 East Acampo Ra -MAR 4 8199 <br /> Acampo CA 95220 ; - <br /> RE: FORMER UNDERGROUND STORAGE TANKS : f SITE CODE: 500140 <br /> 532 East Lockeford y <br /> Lodi CA <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 July 16, 1993— <br /> The <br /> 993—The presence of contaminants at your facility exceed Pe allowable limits of <br /> leaching potential as recommended by the LUFT Manual . The farmer <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 /> PHS/EHD is providing you notification that an "Underground Storage Tank <br /> Unauthorized Release (Leak)/Contaminated Site Report" has been filed pursuant <br /> to Section 25295 of the Health and Safety Code (HSC) . The appropriate_ <br /> disclosure of a hazardous waste discharge pursuant to Section 25l$0.7' 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 PH8/EHD. # <br /> PHS/EHD has been designated by the State of California Water Resources Control t <br /> Board (SWRCB) as the local agency overseeing the investigation of;� leaking <br /> USTs. Pursuant to Section 25299.37 (HSC), "dischargers" must take- Corrective E <br /> action in response to the unauthorized release. <br /> Please be advised that PHS/EHD will be utilizing the 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 are, for example, 'depth to <br /> groundwater, proximity to a drinking water source (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 prioritizatoti,'Iwherever <br /> possible PHS/EHD 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 excavationsallow for 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.:soil. <br /> Before receiving a PHS/EHD corrective action directive and in order to receive <br /> A Division of San Joaquin County Health Care Services <br />