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PUBLIC HEALTH SERII�ICES <br /> SAN JOAQ11-IN <br /> T. <br /> hair,Ofiitc a <br /> P.O. Box 2009 (1601 IEwa Hazelton Sze) Swkton, Caftfomia 95201 <br /> 209) 468-3400 <br /> PHILLIPS PETROLEUM COMPANY <br /> 1666 6MAR 17 1992 <br /> BARTLESVILLE OK 74003 <br /> '° .r. , <br /> Stockton Airport REPLY TO SITE CODE: 1845 <br /> 5000 S. Airport Way <br /> Stockton, CA 95206 <br /> San Joaquin County Public Health Services, Environmental Health <br /> Division candy reviewed the analytical results <br /> f the soil samples taken from beneath the underground se <br /> tanks that were removed from this site during the periods of <br /> -1990 <br /> Although laboratory results from each; tank removal <br /> detectionno of volatilehydrocarbons, the detection <br /> limits cannot be applied x nstandards. (see chart below) <br /> Current standards, laboratory detection limitst and/or the site <br /> specificac cs (i.e. depth to seasonal high <br /> groundwater, nearby wells, septic systems) make it impossible for <br /> PHS/EHD to sae these tanks for closure <br /> According to the Leaking Undergrounde Tank (LUFT) field <br /> aa . (February 1989) detection limits for soil analysis are <br /> .005 ppm, for volatiles and 1. .0 ppm for total <br /> petroleum a » <br /> If site closure certification is necessary, not be <br /> able to provide it without further investigation of the <br /> underground storagetank removalsites listed below. <br /> However.. <br /> pKS/MM is not, at this tints, requestingo <br /> these specific tank 1, <br /> 1"1=11 gummeni-Mm <br /> Benzene . ,005 ppm <br /> Toluene .005 ppm <br /> Xylene 5 PPS <br />