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Phase I Environmental Site Assessment 2329 East Vine Street, Stockton, CA- Page i GPI Environmental Management EXECUTIVE SUMMARY GPI Environmental Management (GPI) has completed a Phase I Environmental Site Assessment for real property designated as 2329 East Vine Street (APN 141-195-23), Stockton, California (subject property). On 21 ` June 2005, GPI conducted a field inspection of the subject property to assess the possible presence of petroleum products; other regulated hazardous materials and/or hazardous wastes at the subject and adjacent properties. GPI's Phase I Environmental Site Assessment investigation included a site reconnaissance, background research, and review of available local records regarding the presence or unauthorized releases of environmentally hazardous substances at, or near the subject properties. GPI searched files at the San Joaquin County Environmental Health Department, Certified Unified Program Agency to ascertain the status of identified petroleum hydrocarbon release sites at the subject and adjacent properties. GPI also contracted with Environmental Data Resources Inc. of Milford, CT to perform a search of State and Federal regulatory databases for environmental concerns at the subject and adjacent properties. Based on the information obtained during our investigation, GPI affirms that the subject property, is not presently used, nor has been used in the past since at least 1930 to generate, use, store and/or dispose of regulated quantities of petroleum fuel products, agricultural chemicals and/or other regulated hazardous materials and wastes. It is not anticipated that future operations at the subject property will involve the generation, use, storage and/or disposal of regulated quantities of petroleum fuel products, agricultural chemicals and/or other regulated hazardous materials and wastes. Historical documents indicate that the subject and adjacent properties have been occupied by single-family residential structures and have not been utilized for agricultural purposes since at least 1930. Based on the regulatory file review and historical information sources, adjacent and nearby properties in all directions within one-eighth mile radius of the subject property have not been historically utilized for activities associated with the generation, storage, handling, use or disposal of regulated quantities of petroleum and/or other hazardous materials or wastes. Based on EDR's regulatory database search, there are nine current and/or formerly Leaking Underground _ Storage Tank site was identified within a one-half mile radius of the subject property on the State Water Resources Control Board's Leaking Underground Storage Tank Incident Report database list. Two of the nine sites are located within a one-quarter mile radius of the subject property. The nearest identified sites included Gill Roofing(1219 N Filbert Street, 1/8-1/4 mi)and Ragu Foods (1147 D Street, 1/8-1/4 mi). Both sites have been issued a"No Further Action" (NFA)letter by the San Joaquin County Environmental Health Department and the Central Valley Regional Water Quality Control Board pursuant to the conditions of Section 25296.10 of the California Health and Safety Code, which applies only to releases of petroleum hydrocarbons associated with Underground Storage Tank systems. Based on regulatory information, previous subsurface soil/groundwater contamination at these sites was restricted to the property boundaries. Based on available regulatory agency information, it does not appear that currently and/or in the past that these sites listed above pose an environmental threat and/or liability to the subject property based on distance and/or ( J contamination being restricted to near-surface soils adjacent to the former underground storage tanks. There are no additional former and/or current permitted underground storage tank sites located within a one-half mile radius of the subject property. There are no identified large/small RCRA generators within one-quarter mile (5'1 of the subject property. No structures are present on the subject property,thus no suspect asbestos-containing building materials and/or lead-based/containing building materials are present. Based on our review of geologic and geo-hazard maps, it appears that no adverse soil and/or geologic conditions exist within the subject property boundaries. The subject property is not mapped within an Alquist-Priolo Earthquake Fault Zone. The subject property has been identified within an area of low amplification shaking and seismic hazard by the California Geological and US Geological Surveys.