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u' <br />*1 <br /> . Preliminary Investigation and Evaluation Report <br /> ' NATIONAL FREIGHT <br /> 2$50 Loomis Road, Stockton, California <br /> 1 I.O. INTRODUCTION <br />' In accordance with the request of Mr Daniel Folcher of Vineland Construction Co , Advanced <br /> GeoEnvironmental, Inc (AGE)has prepared this Preliminary Investigation and Evaluation Report <br /> (PIER) for 2850 Loomis Road (the site), Stockton, California The scope of work included the <br />' advancement of two soil probe borings and the collection and analysis of soil samples The location <br /> of the site and its surroundings are illustrated on Figure 1, mayor features on the site and soil probe <br /> boring locations are illustrated on Figure 2 <br /> This investigation was performed in accordance with the guidelines of the San Joaquin County <br />' Public Health Services - Environmental Health Division (PHS-EHD) and of the Central Valley <br /> Regional Water Quality Control Board for the investigation of underground storage tank(UST)sites <br /> 2.0. BACKGROUND <br />' • In September 1998,two USTs and associated fuel dispensers and product piping were removed from <br /> the site Based on field observations and analytical results of soil samples collected during the tank <br /> removals, the PHS-EHD directed by letter dated 21 June 1999 that a subsurface investigation be <br />' performed at the site to delineate the vertical and horizontal extent of petroleum hydrocarbon-impact <br /> In accordance with PHS-EHD directives, procedures for a subsurface investigation were outlined <br />' in the Site Investigation Work Plan, dated 05 August 1999 and approved by the PHS-EHD by letter <br /> on 18 August 1999 <br />' 21 SITE LOCATION AND DESCRIPTION <br />' The site is located in a topographically flat area of Stockton, California (Figure 1), approximately <br /> 1,400 feet west of the intersection of Loomis Road and California Highway 99 Frontage Road The <br /> site is located in the northeast quarter of Section 47, Township I North,Range 7 East, Mount Diablo <br />' Base and Meridian (Stockton East Quadrangle, 7 5-Minute USGS Topographic Series, 1968, photo <br /> revised 1987) <br />' The site is presently utilized as a truck depot for freight transportation The site consists of a storage - <br /> yard and a large building structure utilized for office space Two 12,000-gallon diesel USTs and one <br />' 1,000-gallon waste oil UST were formerly located on the property <br /> AdYaireedGeoEn%iron mental, Inc <br /> 1 <br />