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7V <br /> = Geological Audit Services, Inc <br /> zNVIF70PEtiTf1L NEAI.TH <br /> Environmental Professionals <br /> N-4W ICE <br /> 1803W.March Lane,Suite A•Stockton,CA 95207•(209)956-0264• FAX(20911Q�0 pptts� <br /> 11 Oc o1h'ei1' '1032: 08 <br /> (GeoAudit 800-5) <br /> Brian Goins <br /> GOINS ENVIRONMENTAL <br /> 3750 Auburn Blvd. , Suite A <br /> Sacramento, California 95821 <br /> Subject: Soil Sampling - Don Avenue Pump Station <br /> Stockton, California <br /> Dear Mr. Goins: <br /> Enclosed are the laboratory results for the soil samples collected <br /> at the Don Avenue Pump Station in Stockton, California, on <br /> September 23 , 1993 . <br /> TANK REMOVAL <br /> One (1) 550-gallon diesel underground storage tank was removed from <br /> the referenced site on September 23 , 1993 , by Helmick and Lerner of <br /> Sacramento, California. Geological Audit Services, Inc. (GeoAudit) <br /> was retained by Goins Environmental to collect soil samples <br /> associated with the tank removal. <br /> PROCEDURES <br /> Sample D-1 was collected from the tank excavation at a depth of <br /> nine (9) feet. Samples SP-1 and SP-2 were collected from the <br /> stockpiled soil and were composited for analysis. <br /> The samples were collected using a metric soil sampler loaded with <br /> 11J0, Clean, b}' 3 `4 nch bzass ubcs. !rh e ends of the lead tubes <br /> were covered with aluminum sheets, capped and sealed with tape. The <br /> samples were collected under the direction of Ms. Pam Violett of <br /> the San Joaquin County Public Health Services - Environmental <br /> Health Division (PHS/EHD) . <br /> The samples were stored on ice and transported under chain-of- <br /> custody to McCampbell Analytical, Inc. in Pacheco, California, <br /> where they underwent analysis for total petroleum hydrocarbons (TPH <br /> as diesel) and volatile aromatics (BTE&X) . <br /> RESULTS <br /> No hydrocarbon contamination was detected in sample D-1. Xylenes <br /> were detected in the composite sample from the stockpile (SP-1 and <br /> 1 <br /> Full Spectrum Environmental Services• Hydrogeology <br />