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LK E/NFELDER — . N9At Pepp'e.fl/9AISWWont. • A significant amount of additional soil staining was observed likely due to dry soil conditions compared to prevailing wet soil conditions observed in the 2006 ESA. Staining was observed associated with the diesel and gasoline ASTs in the dairy area and in the central portion of roadways near the primary dairy and in the vicinity of the central residential/farmhouse area. Soil staining/discoloration was also noted north of the milk barn. Surficial water ponding and discolored water noted in the prior ESA were generally not observed except in corral areas of the primary dairy operations. • A potential wash-down pad and maintenance area were noted on the eastern end of the main dairy area. • A large manure pile and manure drying area was noted by the southwest r corner of the main dairy area, which was not observed previously. • A large polyvinyl tank estimated at 2,000 gallons labeled as urea ammonium nitrate were noted in the central residential/farmhouse area on the northern parcel. A small leak was noted from this tank. • Soil pile locations in proximity to the dairy waste ponds were noted in different areas. No-hazardous materials, however, were observed. • Four domestic wells were sampled on the northern parcel. trate a N values in groundwater samples from three of four wells weFe below he applicable MCL of 10 mg/l. The backup domestic well DW-4 ocate ong the east central border had Nitrate as N values of 13 mg/I, just exceeding the primary MCL noted. DBCP was not detected in any of the four groundwater samples collected. 5.2. COMPARISON OF PRIOR CONCLUSIONS AND RECOMMENDATIONS — The following summary of conclusions/recommendations numbered 1 through 26 were copied directly from the former ESA. Italicized comments are added based on the updated site reconnaissance and includes changes to the former conclusions and recommendations. In summary, the former ESA and updated reconnaissance has revealed evidence of recognized environmental conditions in connection with the property: 1. Concrete irrigation control structures and standpipes are located though out the orchards in the southern portion of the site. On properties with a history of agricultural use, underground pipelines may exist. It was common for said pipelines to contain asbestos (e.g., Transite pipe). A Transite standpipe was noted in the northeast corner of APN 205-100-17. Subsurface exploration is not a part of a typical Phase I Environmental Site 95428.E01/STOSR693 July 29, 2008 0 2008 Kleinfelder Page 18 of 26