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how long since 1955 the contamination occurred Excavated areas were backfilled with <br /> ' presumed clean material to original surface grade The site continues to be operated as a <br /> road oil distribution terminal Today products currently stored Incorporate only a limited <br /> amount of diesel and kerosene like solvents Current storage is generally water based, <br /> ' non-petroleum lignins, AR grade asphalt and water based emulsions <br /> ' The 2 13 AC parcel, APN 017-09-36 is bordered on the north by an 8 36 AC parcel, APN <br /> 017-09-02, on the south and east by a 14 25 AC parcel, APN 017-09-35, and on the west <br /> ' by a 2 + Ac parcel, APN 017-09-37 The western parcel has residences on it while the <br /> other two bordering parcels are open fields owned by Michael & Lisa Douglas3 since 1998- <br /> 1999 <br /> The site is located east of Acampo, San Joaquin County, CA, in the NW '/of the NW %of <br /> ' Sec 31 T4NR7E M D B & M Reference Figure 2, Area Map <br /> ' 2.1.2 Preliminary Investigation and Evaluation Report—Plant Site <br /> The discovery of contamination at the time of UST removal led to the previous <br /> referenced Gallardo Report This study supported an initial request by the owner for <br /> closure, followed by a request for additional information from PHSIEHD <br /> The Gallardo report may be considered to be the Preliminary Investigation and <br /> ' Evaluation Report The PIER was completed in May 1999 Two proposals were <br /> evaluated by the owner in December 1999 and July 2000 and rejected in favor of the <br /> recent proposal by D K Barber P E and Associates in September 2000 <br /> 2.1,3 Review of Earlier Study <br /> Soil petroleum hydrocarbon and water petroleum hydrocarbon contamination findings <br /> ' have been reviewed from Gallardo's study Isolated soil contamination and possible <br /> minor groundwater contamination exits The soil mantle is generally a silty sand <br /> underline with a several feet thick sand layer 9 to 11 feet bgs This in turn rests above <br /> ' a 20 to 30 feet layer of clayey to silty sand with presumed high permeability Within <br /> the last 15 years considerable attention has focused on the nearby Victor Fine Foods <br /> ' (Meat Company) The meat packing site was identified as a major source of salt brine <br /> M &L Douglas,490 Moore Rd Woodside,CA 94062 <br /> 'Reference CVRWQCB Case File Victor Fine Foods <br /> . 2-2 <br />