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r <br /> Canoale.Lnvironmental <br /> t••t Canonie Envirommntal Services Corp. <br /> 1825 South Gram Street <br /> S �rt Suite 260 <br /> pn <br /> San Mateo,Catifornla 94402 <br /> w <br /> August 17, 1989 AUG1999 <br /> ) phone;415.573.8012 <br /> !: FAX:415.573.5654 <br /> ENVil")NWIENTAL HEAUH 88~200-02 <br /> kRNUTISERVICES <br /> Mr. Fred Long <br /> Plant Manager <br /> PDM Strocal, Inc. <br /> s4 2324 Navy Drive <br /> f Stockton, CA 95206 <br /> Transmittal <br /> Soil Remediation Report <br /> r PDM Strocal Inc, s Site <br /> xe Stockton California <br /> 3. Dear Fir. Long: <br /> This letter report suneoarizes the soil remediation activities completed by <br /> Canonie Environmental Services Corporation (Canonie) at the PDM Strocal <br /> Inc.'s site located in Stockton, California. Soil remediation activities <br /> were performad in accordance with the Soil Remediation Work Plan submitted <br /> to Pis. Diane Hinson of the San Joaquin Local Health District on May i2, <br /> w 1989 as amended in a letter sent to Mr. Ron Valinoti on July 25, 1989. <br /> i A 10,000-gallon underground storage tank was originally removed from the <br /> location shown on Figure 1 by Western Meter Service on March 9, 1989. - <br /> y During ;`cmoval of the tank, which was usedto stere d ase] fuel, discolored <br /> sail with a diesel odor was noted at the west end pf the tank. This arca <br /> was underlying the farmer location of the tank's surface pump. A soil i <br /> sample taken ;roar .the western sidewall of the excavation confirmed the ' <br /> presenceof diesel fuel in the soil at a concentration of 350: milligrams <br /> ` per kiingram (mg/kg)'. A soil sample taken from the eastern sidewal] of the <br /> excavation yi6lded nondetectab]e concentrations. <br /> E <br /> Soil Remediation Activities <br /> On June 22.And 23, 1989, remediation activities were performed by Canonie <br /> to remove contaminated soil from the origins, tank excavation. As <br /> specified in .the Work Plan, a backhoe was used to expand the excavation to ' <br /> the west.until .clean.sidewalls were encountered. During the excavation the <br /> �,tiAtent<of .contamination.was continuously-evaluated by both; the <br /> l discoloration:and the`0 or ofthe Verticall the depth of <br /> extayatien wa <br /> " extended_�nti <br /> L.SirOJ -yeas-eneo 1-¢.na-it,�art-af- Q� --�? - - <br /> the excavar_i�n Hor.izontall the sidewal] was expanded an addit+,anal °ri <br /> �.. Y p - -. <br /> feet to the west Aftsr removal .of.contaminated soils was completed basted , <br /> on�observation:of,soil color' andi,odor,,.the backhoe was-usao to.,ebtain two <br /> sidgwall ;soil..samples at approximately one to:..tw feet,abova:the.ground <br /> i <br /> � 7 <br />