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This review is based on the information presented within the following environmental documents provided by the client (see attached): • Phase I Environmental Site Assessment, Stockton III Business Park, 2020-2200 East Miner Avenue, Stockton, California, Stellar Environmental Solutions,June 1998. • Fax From San Joaquin County Environmental Health Department, March 24, 2003, Excepts of Subsurface Soil and Ground Water Contamination Investigation and Monitoring Well Installation, Tri-Valley Growers Warehouse, Miner Avenue, Beta Associates, Inc., March 14, 1986 and July 10, 1989. Conclusions Based on the information presented within the environmental documents reviewed, and with the provision that the information provided to Basics was accurate and representative of site conditions, our findings indicate: The Phase I Environmental Site Assessment report is technically competent and internally consistent with the latest' protocols set forth by the American Society for Testing anti Materials (ASTM) Standard E1527, Standard Practice for Environmental Site Assessments: Phase I Environmental Site Assessment Process, however, the report incorrectly stated there was no coverage for the subject site within the Sanborn Fire Insurance Maps of 1950 and 1972, therefore missing much of the historical information uncovered within the recent Environmental Transaction Screen Report completed by Basics. In addition, as part of the Phase I Environmental Site Assessment, previous environmental investigations conducted at the subject site and vicinity were discussed. On March 14, 1986 and July 10, 1989, a subsurface soil and ground water contamination investigation and monitoring well installation was conducted by Beta Associates, Inc. for the Tri-Valley Growers Warehouse Property which included Delmonte Buildings 1-4. Two soil borings were advanced near the south west corner of Building 4 (several parcels west of the subject site). In addition, one of the soil borings was converted into a ground water monitoring well. Soil samples and one ground water sample were collected and analyzed for volatile organic compounds and total recoverable petroleum hydrocarbons as gasoline and oil & grease. Analytical results indicated the levels of these compounds detected were below ►nethod detection limits. On September 26, 1996, a letter to Mr. George Takemori, issued by the San Joaquin County Environmental Health Division denied site closure for the adjacent of A Teichert and Soils, Inc. site (located at 103 North E Street, across the Southern Pacific Railroad Right of Way and Tracks. to the south and perceived cross gradient to the site). Additional analysis and studies of the known impact to the soil and ground water with petroleum hydrocarbons were required prior to considering the adjacent site for closure. The adjacent A Teichert and Sons site appears to have conducted substantial environmental subsurface investigations including the installation of at least 14 ground water monitoring wells. The information regarding the environmental subsurface investigations was incomplete within the Phase I Environmental Site Assessment, however, based on a site plan, 11b GLORlETTA BLVD • ORINDA ,CA • 94563 • TEL / FAX 925-258-9099/ 9098