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INTRODUCTION Reference is made to a Surface and Subsurface contamination Report(SSCR)conducted by Chesney Consulting on April 28,2009 for the subject property. The San Joaquin County Environmental Health Department(EHD)has required an Addendum be completed for the original SSCR due to the expired time frame between the initial Report and the present. Typically,the EHD requires specific guidelines in the form of a Requirements Checklist. However, for an SSCR Addendum,the Department requires that the property be reviewed for comparison with the original Study and a summary of the findings be reported. FINDINGS Upon review of the original report, it was concluded that there are four areas of environmental concern. These items, or areas were reviewed again with accompanying photographs to document my findings. The first item is the waste oil storage tank on the south side of the metal building. Used oil from vehicles and/or farm equipment is stored in this horizontal container until it is pumped out by an oil recycling company. There was no evidence of spillage around this tank as noted in the attached photograph Plate A. The second area is under the aboveground fuel storage tanks for diesel and gasoline. No soil staining from fuel deliveries or refueling of vehicles was noted as illustrated in photographic plate D. The third site was a drum storage area where 55 gallon drums and smaller containers are stored. No evidence of spillage or staining was observed as noted in photographic Plate E. The fourth item is the 10,000 gallon diesel fuel tank. No spillage or soil staining was noted at the hose nozzle location as illustrated in photographic Plate F. CONCLUSIONS Section 9-905.12 of San Joaquin County Development Title states"Corrective Action: If the report indicates there are surface and subsurface contamination, corrective action shall be recommended in the report and concurred with by Environmental Health prior to the issuance of the building permit." Therefore, it is my professional opinion that no corrective action is required on the subject property,as assessed and observed for this Addendum. The majority of the subject property will continue to be productive farmland, and is surrounded by properties that engage in production agriculture. Consequences of this surrounding land use include: noise,dust, odors, insects, machinery, spray equipment,crop dusting aircraft,trucks,exhaust and other environmental effects that may be offensive to some people. Bottled water should always be used for drinking and cooking purposes in agricultural production regions. Page 2 of 3