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r n s - g which indicated 1.0 rg/kg, which was the detection limit. The sample frrsm the west end, 2-West, was below detection limits for all tested constituents except TFH-G, which showed 77 mg/kg; the detection limit was 10 mg/kg; (refer to Table 2. ) 1989 - Thorpe Oil Co. removed an unused, empty, 550 February 17, P {see Plate III for gallon regular gasoline storage tank, aunty location,) and took one (1) sail sample as required bY:G oor regulations. Thereator wasnoanalevidsiseshowed of nthe l � dn sampletobebelow or staining. Y Y ll tested cc �panents, (see Table 1 for reporting limits for a details. ) June 27, 1989 - Thorpe Oil Co. submitted a Soil Fecavo{lathe Resample hark Flan to re-excavate the west portion (rLct efer4tasidewall Exhibit A�a�nples at 10' and one original hole and Coll bottom sample at 14'; July 7' , 1989 - San Joaquin Lal Health Disst trict responded eto to wor}:plan, outliningsteps necessary P a Exhibit B) August 1, 1989 - Thorpe Oil excavated the west end of the hole 9, mai:ing a hole 8 feet X a feet X 14 that had been dug an Nov. i feet deep; (see Exhibit C. ) Four (4) with brass brass ti-:b es an each of all sail samples were taken by Canonie Laboratory personal w the walls at a depth of 10' , and one (1) sample was taken from also b Canonie personel . Samples the tottam of the excavation, a under proper chain of custody, were collected and transportedy� TEH (EPA Meth _ with instructions to test for BTX&E, FBod DHS 742U. ) The Methods 8015 & 9020, ) and organic lead, ) was returned he excavated sail , (approximately 33 cubic yards+ to the hole. 16, 1989 - Laboratory analysis On the above samples showed August that BT 16, EDB, 'CPH-G, and organic lead were all below reporting limits, (Table 2) September 7, 1989 - Laboratory report from Canonie Labs revealed that only the sidewall sample from the weds tested pieshowedside oby the EPA excavation showed detectable concentration of 110 mg/kg, Method 8015. That same (Table 2) with a reporting limit of 10 mg/kg; September 19, 1984 - The excavation was reentered again by Thorpe oil , and another sample was collected by Canonie Environmental under Chain of Custody at approximacel', the same location as the .._...... . . -. . .. ,.e the sample one discu... ssed.. above: _The instructions-wereo..an _. 3 - rriirm■irurrrmrrrMNIR1,YIr1Pf1#,� ...