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,kn <br /> 4 <br /> i <br /> C <br /> f--- <br /> k5qK <br /> December 20, 1988 <br /> File: 24-2112-30 <br /> Mr.Sonny Shipwash <br /> Nomellim Construction <br /> 939 West Charter Way <br /> Stockton,CA 95206 <br /> SUBJECT: Sail Sampling Results for Excavation <br /> Nomellini Construction,Stockton,California <br /> Dear. Sonny: <br /> Enclosed are the analytical results for two soil samples collected on November 9, 1988, <br /> from the Gasoline tank excavation. Plate 1 shows the location of the site, 1045 West <br /> Charter VVay, Stockton, California. Plate 2 shows the location where the soil samples were <br /> collected. The samples were delivered under chain-of-custody to ENSECO-California <br /> Analytical Laboratories, Inc. in West Sacramento, California. The two samples were <br /> analyzed for total petroleum hydrocarbons (TPH) extractable by GC-FID; and benzene, <br /> toluene, ethylbenzene, and xylene (ETEX) by EPA Method 8020. The analytical results <br /> are presented on Table I and a copy of the laboratory data sheets and chain-of-custody are <br /> attached. <br /> Table 1 <br /> Soil Sample Analytical Results <br /> TPH B T E X <br /> (mg/kg) (mg/kj) ug/kg ug/kg ug/kg ug/kg <br /> Sample Location gas diese. <br /> N-2 5,000 100 38,000 240,000 75,000 410,000 <br /> N-7 1,200 39 51900 33,000 22,000 140,000 <br /> Sample N-2 was collected approximately 19 feet below the ground surface, about 6 feet <br /> below the bottom of the existing excavation where Oe former underground storage tanks <br /> were located. Sample N-7 was collected at a depth of 16 feet below the ground surface, <br /> approximately 5 feet east of the excavation. <br /> nre n,,�n,, ,u,r n..-•_n-- <br /> r, <br /> ,,, ; 5 parr ©rive.Suite C,5a[ransenro,CA 9382,- <br /> 1916) 366-1,-01 <br />