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Site Assessment Summary Report 17100 Murphy Parkway, Lathrop, San Joaquin County, California PNA Parcel B (Portion of Solid Waste Information System (SWIS) number 39-CR-0022 (APN 198-120-09) 1.0. INTRODUCTION At the request Mr. Dana Parry of R & B Louise LLC, et al, Advanced GeoEnvironmental, Inc. (AGE) has prepared this Site Assessment Summary Report for the property located at 17100 Murphy Parkway, Lathrop, California (herein referred to as “subject property”; Parcel Number 198-120-09 or Parcel B). This report summarizes the work performed to investigate, characterize, define, and remediate/dispose of the solid waste identified at the subject property. Additionally, this report presents a Conceptual Site Model (CSM) which discusses the results of previous activities performed at the subject property in relation to the planned redevelopment of the property. A location map of the subject property is presented in Figure 1. Maps depicting site features, trenches, soil borings, surface soil sampling locations, solid waste removal locations, and waste characterization dimensions (thickness and depth) are illustrated in Figures 2 and 3; cross-sections of the North and South Waste Cells (areas of removed waste) and minor residual subsurface waste in the waste/glass handling area are estimated and depicted in Figure 4; the design of a soil-gas landfill probe at the site is depicted in Figure 5; and a map depicting regional groundwater flow is presented in Figure 6. Analytical results of all soil, solid waste, groundwater, and soil-gas samples collected are summarized in Tables 1 through 7. Additionally, boring and trench logs, waste disposal manifests, analytical data reports, geophysical reports, and additional investigation data are included in Appendices A through F of this report. 2.0. SITE LOCATION AND DESCRIPTION The subject property is located at 17100 Murphy Parkway, Lathrop, California, approximately 500 feet east of Murphy Parkway and 1,500 feet south of East Louise Avenue in a mixed commercial and industrial area of the city of Lathrop in San Joaquin County, California. The subject property includes one, semi-rectangular parcel totaling approximately 48 acres (APN: 198-120-09). The subject property is an unirrigated, undeveloped, vacant field with minor vegetation, and is generally flat (Figure 1) with areas of minor undulating topography and depressed surface areas in the northwest portion of the site. The subject property is bordered to the west by the former San Joaquin County Cogeneration Power Plant (Cogen) property and to the east by the former Occidental Chemical Company (Oxy Chem) and current JR Simplot Company (JR Simplot) sites. The former Pilkington North America (PNA) glass factory and storage building is located