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Preliminary,Site Assessment Work Plan SPINGOL:O TRUCKING COMPANY' 1011 North Broadway Avenue; Stockton; California' " 1.0._ ' INTRODUCTION' , At the request of-Mr:Frank-Spirigolo'of Spingola Trucking Co:;Advanced GeoEnvironmental,Inc. ' .(AGE)'.has prepared'this preliminary siie.assessmenf work plan for the.advanccment'of soil,probe 'borings at 1-0.11 North Broadway Avenue.(the site);;Stockton,-California. The location`of the site is illustrated in Figure 1. A plan'of the`site is illustrated-on Figure•2. This-work,plan is prepared as required by,the Sari Joaquin County Public Health Services Environmental Health Division'(PHS-EHD) by'letter dated 1-8 August 1999 and is in-accordance ' ,with Central.,.Valley Regional Water Quality Control 'Board (CRWQCB) guidelines,'for the, ' F;investigation of underground`storage tanks (UST) sites. r' The purpose,of theproposed assessment is to-evaluate the lateral and vertical.extent of petroleum 'hydrocarbon impact to soil'at the site and to determine-if ground water has been iinpacte`d by an, ' unauthorized release of petroleum hydrocarbons:This work plan provides a description of the scope of work and procedures to be.used,for soil probe bohng.advancement and collection and,analysis of soil and:`grab' ground water.samples: 2.0:' BACKGROUND . The site is located`in a topographically flat area of tocktoi, California (Figure 1), a proxinike,l y I , 400 feet south of the intersection of BroadwayAvenue,and-Roosevelt Street. The-site is further ' 'described as being-located in the southwest quarter of Section`54;Township 2'North,lRange'7 East, ' Mount Diablo.Base and Meridian(Stockton EastQuadran'gle,,.7.5-Minute USGS Topographic Series, :.1968, photo-revised 1987) 2.1. SITE DESCRIPTION-. ' The site is presently utilized.as'a truck'depot for-freight transportation:The site,consists of several , ' structures utilized for office space, truck maintenance and a storage"yard:Two 6,000-gallon diesel USTs,,one 2;000_gallon gasozline.UST and one.500=gallon waste`oil UST were formerly located-on. 'the m' the'.property:.�ne.500-gallon'gasoline .UST was,formerly,located iri_, the Isouthern portion of the property.' Former tank locations are illustrated on Figures 3 and.4:. Advanced GeoEnvironmental,•Inc.