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2094671 <br />1 <br />AGE STOCKTON <br />ARC® AGni Mad <br />4511 Pacific Avenue <br />Stodaon,, California <br />April 1994 <br />PAGE 09/12 <br />At the request of Mr. Arthur 'Wyatt, Geological Audit Services, lnc. (GeoAudit) has <br />collected soil samples ;for the removal of six underground storage t (CIST's) and <br />associated piping at 4511 Pacific Avenue in Stockton, California. <br />Six (6) underground storage tanks (UST's) were removed from the site on April 8, X994. An <br />excavator, 1.0ader and operator were supplied by Goias EXIV'Ironnaental Construction of <br />Sacramento. (GEC) to perform the excavation and tank removal..A► total of 19 soil samples <br />were collec4d by a representative of GeoAudit. Nine soil samples were collected from the <br />floor of thel excavation (SE -1, NE -1, M56, NWI, W23, SW -1, ,NE4, M35, and E12), six <br />samples frog the piping area (P-1 through P'-6), and four samples ;from the soil stockpile <br />(SP -1 through SP -4). Soil samples were collected with a metric Soil sampler loaded with two <br />clean, '2 by �-inch brass tubes. The ends of the lead tubes were .ccvered with aluminum <br />slieets, capped, Iabled and sealed with tape. Samples for the excavation were: collected from <br />the excavator bucket. <br />Twelves Ales were analyzed for total petroleum hydrocarbons (TWO as gasoline, volatile <br />aromatics (OTE&X) total lead, total dichloroethanes (ACA) and total dichloroetheztes <br />(DCE); one $ample was anaylzed ;for TPH as diesel, JBTE&X, DCA and UCE; two samples <br />were analyzed for TPH as diesel and BTE&X- <br />Soil .. 1excavation was stockpiled near thenortheastproperty. <br />stockpile saMples were collected, composited at the laboratory and analyzed for TPH and <br />BTE&X. All 1sample locations and analyses were specified by Ms. Dia3e Mitson of the San <br />Joaquin Comity Public Health Services - Environmental Health Division (PHS/M711)). Ile <br />soil sample ldcations are illustrated on Figure 1, <br />Mw 1AT Rey.,,. <br />+ r <br />r <br />TI <br />