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PUBLIC AEALTH SERVICES �oPa�IN. <br /> �o <br /> SAN JOAQUIN COUNTY r <br /> ENVIRONMENTAL HEALTH DIVISION <br /> Karen Furst, M.D., M.P.H., Health Officer a. <br /> 304 East Weber Avenue, Third Floor • Stockton, CA 95202O <br /> 209/468-3420 0D <br /> GUIDO G SEGARINI TRUST NOV 22 1999 <br /> P O BOX 4341 <br /> STOCKTON CA 95204 <br /> RE: J H Griffin/ Mobile Service SITE CODE: 1007 <br /> 75 E Alpine Ave. <br /> Stockton CA 95204 <br /> San Joaquin County Public Health Services, Environmental Health Division (PHS/EHD) has <br /> reviewed the"Preliminary Site Assessment Work Plan" dated October 25, 1999 that was <br /> prepared by Advanced GeoEnviron mental Inc. (AGE) for the above referenced site and has the <br /> following comments. <br /> On September 14, 1994 three gasoline underground storage tanks (UST) and one waste oil UST <br /> were removed under permit and inspection from this site. Soil samples collected from beneath <br /> the UST's were analyzed and results evidenced contamination of up to 19,000 parts per million <br /> (ppm)total petroleum hydrocarbons as gas (TPHg), 12-ppm benzene, 650-ppm toluene, 410-ppm <br /> P ethylbenzene and 3,000-ppm xylene. <br /> The work plan proposes to begin the investigation of the vertical and lateral extent of the noted <br /> petroleum hydrocarbon contamination with a series of at least four Geoprobe direct push soil <br /> borings. Soil samples will be collected every five feet in each boring, selected samples will be <br /> submitted for analysis. At least three of the borings will be advanced to a depth four-feet below <br /> groundwater for the collection of grab groundwater samples. All submitted samples, both soil and <br /> water, will be analyzed for TPH-g by EPA Method 8015 Modified, BTEX components by EPA <br /> Method 8020, and for five fuel oxygenates by EPA Method 8260. <br /> The work plan as outlined above is approved. Please proceed with submittal of a Well Permit <br /> Application and required $89.00 fee. Please prepare a well survey that documents the location <br /> of all industrial, domestic, municipal, agricultural and other wells located within 2,000-feet of the <br /> subject site. Boring logs of these wells, if available, should be included. Submit the well survey <br /> with the report of findings and recommendations that will be prepared following the completion of <br /> the work. Please note that at least 48-hours notification to PHS/EHD is required prior to <br /> scheduling work. <br /> If you have any questions or comments please call Lori Duncan at(209)468-0337. <br /> Donna Heran, REHS, Director <br /> Environmental Health Division <br /> L-Otn C1. h <br /> Lori Duncan, Senior REHS MargaretEagorio, RAE <br /> Site Mitigation, Unit IV Supervisor, Unit IV <br /> cc: Mark List, CVRWQCB <br /> William Little, AGE <br /> A Division of San Joaquin County Health Care Services <br />