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Limited Subsurface Site Assessment Work Plan WIZARD DEVELOPMENT PROPERTY 1943 East Fremont Street, Stockton,California 1.0. INTRODUCTION At the request of Mr. William Parish of Parish & Small, PLC,Advanced GeoEnvironmental, Inc. (AGE) has prepared this Limited Subsurface Site Assessment Work Plan for the property at 1943 East Fremont Street, Stockton, California (site). The work is being performed as part of due diligence effort to investigate areas ofpotential environmental concern at the site.The location of the site is illustrated on Figure 1. A plan of the site is illustrated on Figure 2. This work plan was prepared as required by the San Joaquin County Environmental Health Department(EHD)for the procurement of soil boring permits and uses the Central Valley Regional Water Quality Control Board document Appendix A-Tri-Regional Board StaffRecommendations for Preliminary Investigation and Evaluation of Underground Storage Tank Sites as a guideline. 2.0. BACKGROUND The site is a vacant property that is utilized for pallet storage;it is located at the southeast corner of East Fremont Street and Wizard Avenue, in an area of mixed commercial and light industrial use (Figure 2). Features on the property include concrete foundations from former structures, a pallet assembly area on the southwest portion and a small office building on the northwest portion of the site. The San Joaquin County Tax Assessor's Office lists the site as Parcels 37 through 41 on Map 090 in Book 141 (APN 141-090-37 through 41) and Parcel 26 on Map 100 in Book 141 (APN 141-100-26). 2.1. REGIONAL GEOLOGIC/HYDROGEOLOGIC SETTING The site is situated within the southern portion of the Great Valley Geomorphic Province of California, a large, elongate, northwest trending, asymmetric structural trough; the northern and southern portions of the Province have been designated the Sacramento and San Joaquin Valleys,The Province is bordered by the Coast Ranges to the west,the Klamath Mountains and Cascade Range to the north, and the Sierra Nevada to the east. The Great Valley has been filled with sediments derived from both marine and continental sources. Thickness of the sedimentary fill ranges from thin veneers along the valley edges to more than 20,000 feet in the south central portion of the valley. The sedimentary formations range in age from Jurassic to Recent,with the older deposits being primarily marine in origin and the younger deposits being primarily continental. Continental-derived sediments were primarily deposited in lacustrine,fluvial, and alluvial environments with sediment sources being the mountain ranges surrounding the valley Advanced GeoEnvironmental,Inc.