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PUBLICIHEALTH SERVICES <br /> SAN JOAQUIN COUNTY V °L <br /> ENVIRONMENTAL HEALTH DIVISION <br /> Ernest M. Fujimoto, M.D., M.P.H., Acting Health Officer <br /> 445 N. San Joaquin Street • P.O. Box 3$8 • Stockton, CA 95201-038$ <br /> (209) 468-3420 ' <br /> BRUCE MCCANDLESS, RIPON FARM SERVICE ���� � I�� ~` MIR 1114 <br /> PO BOX 806 <br /> RIPON CA 95366 ` ! <br /> - U <br /> RE: RIPON FARM SERVICE k SITE CODE: 1605 <br /> 22871 SOUTH HWY 99 F <br /> RIPON CA 95366 ' <br /> I � <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 ,TUNE 15, 1987. j I <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. IE ' <br /> I� <br /> PBS/EHD is providing you notification that an "Underground Storage Tank <br /> Unauthorized Release (Leak)/Contaminated Site Reportk 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 -25180.7 of the <br /> Health and Safety Code has been made, and the site has been placed on the list k <br /> of contaminated sites in San Joaquin County which isrmaintained 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 investigation of leaking <br /> USTs. Pursuant to Section 25299.37 (HSC) , "dischargers" must take corrective <br /> action in response to the unauthorized release. ? I <br /> Please be advised that PHS/EHD will be utilizing the �SWRCB "Prioritization l <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 prioritization, wherever <br /> possible PHS/EHD will work with you to coincidel;enforcement directives in 1 <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 /> i <br /> If your tank removal was recent and you are notl,`pla"ing any remedial <br /> activities within 90 days, the tank excavation should be closed. It has been <br /> our experience that open tank excavations allowl1for rapid downward migration i <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 aril. '11 <br /> Before receiving a PHS/EHD corrective action directive and in order to receive } <br /> ,I r <br /> # A Division of San Joaquin County Health Cure Services 4 <br />