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Surface&Subsurface Contamination Report Page 3 700 W.Lions Rd.,Tracy Project No. 662.1 February 11,2013 obvious staining or unusual odors were noted that would be suggestive of a hazardous release. • Immediately adjacent to the south side of the pesticide shed is a large aboveground diesel tank estimated at 10,000 gallons capacity. Shallow soil in the immediate vicinity of the dispenser pump exudes a diesel odor, but this extends less than a foot into the subsurface. • Situated near one of the equipment sheds is a domestic water production well:\ This appears to be a replacement for an older well that was located in the pump house. See the maps art Appendix A and photos in Appendix B for graphical representations. Past Use of Property The past use of the Property has been entirely agricultural. Historical air photos (Appendix C) dating back to 1937 show it has always been used to raise hay, grain, or row crops or as pasture land. As a part of this investigation, EDR was contracted to perform a search of State and Federal electronic environmental databases for an area around the subject Property (see Section 3.1 and Appendix D). The Property was identified as the site of three natural gas wells drilled in 1970 as described above. The Property is also identified as the site of 4 former underground gasoline tanks operated by Robert Bogetti. According to County records, there were actually 3 tanks. One of the tanks reportedly leaked, but a remedial investigation was completed and was officially closed. State records indicate the leak was discovered in 1997 and the , investigation was closed in 1999. According to the EDR report Paulson Farms also operated up to 12 tanks on the Property, but county records do not confine this. It appears likely the EDR report is in error on this point. Environmental Conditions Impacting Site from Off Site Properties Several adjacent or nearby or adjacent farm parcels were identified in the EDR database report as facilities that operated permitted underground fuel tanks, but none of the sites have reported a hazardous release. Sites of such tanks are identified as 1777 W. Linne, 28855 S. Koster, 1560 W. Linne, and 29141 S. Koster. A site at 1660 W. Linne reported a surface release of fuel. The release was investigated, adequately mitigated, and officially closed. Several nearby natural gas production wells are also identified by the EDR report. Based on the results of the EDR report, it was not deemed necessary to further investigate off-site facilities. Conclusions 2937 Veneman Ave.,#11240 Geo-Phase Environmental Inc. Phone: (209)569-0293 Modesto,CA 95356 Fax: (209)569-0295