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STYE INVESTIGATION REPORT, <br /> Fortner Hersllel Vance Auto-Repair_.-,. L <br /> 4125°East Main Street, Stockton;California <br /> 1.0. INTRODUCTION,AND SCOPE OF WORK <br /> ~ In accordance with the request of Mr. Jim- Rice and Mi:-~Tayseer. Hawari, .advanced ` <br /> GeoEnvi.ronm.ental, Inc. (AGE).has-prepared'th s report for activities.performed at 4125 East Main <br /> Street, Stockton, California: Tl e.scope of work-included advancement of one soil probe boring and _ <br /> collection of soil sairiples_-The-objective of this investigation was-to qualitatively determine the, <br /> extent of impacted soil and ground.water.at the"si.te. The site location is illustrated on Figure 1- <br /> Location ma/9. Structures an&the-soil probe-boring location are'illustrated-on Figure 2 =Site Plan. <br /> Field work was perfornied-in'accorda.nce with Cential.Valley Regional Water Quality-Control Board <br /> (CVRWQCB)•and San Joaquin County Public-,Health_Services Envirorvnental Health Division <br /> (PHS-EI-ID) guidelines for the investigation of UST.sites. . z -_ <br /> 2.0. BACKGROUND <br /> ^� The subject property is located in a commercial/residential area of east ei•n. Stockton, California, on <br /> the northwest corner of East Main_Street and Adelbert Street, at an elevation of approximately 29 <br /> feet above sea level (Fig:ure l.) = - <br /> It is our understanding that one 300- allon as 'line.u.nclel .round stoi awe.tank (UST) and one Y500- <br /> g g g g g ( ) . <br /> gallon UST were removed from-the site on 22 May-;1990. Tl e USTs Jrad.n.ot veeii in operation for <br /> an unspecified time. Petroleum llydrocarbons were detected .iii the soil=sairnple collected fioin <br /> beneath the 500-gallon UST. Hydrocarbons were not detected in the sample collected beneath the <br /> 300-gallon UST. Furth6f investigation was subsequ&nlly required by the PIIS-EHD. The site <br /> currently gperates as Mike-'.s.Tires & Detailing Shop. . <br /> 3.0. PROCEDURES <br /> 3.1. PROBING AND SAMPLING - <br /> On 18 August 1997, one sol.- obeliorin ,(probing) was adya iced�at.the site using AGE's Geoprobe <br /> 5400 probing unit_egiupped wlth 1.251-inch diameter p,obc, rods and a 2.15-inch diameter. soil. <br /> sampling assembly.-Probi.h Bl was advanced at the forint:x location of the 500-,gallon LIST and <br /> advanced to a depth of 64 feet.below surface grade (bso) The.probe.hor-ing location is shown on <br /> Figure 2. - <br /> Soil samples A,ere collected at.5-foot intervals, beginning at 5 feet-b§6, through 40 feet bsg and at <br /> Advanced GeoEnvironmenta},Inc: <br />