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Lk` ■ KLEINEELDER i. L • No Transite-like piping was observed during our Phase I ESA. However, on properties with a history of agricultural use, such as the project site, many underground pipelines may exist. It was common for said pipelines to contain asbestos (e.g. Transite pipe). Subsurface exploration is not a part of a typical Phase I Environmental Site Assessment L scope of work. In the event that any subsurface structures are encountered during site L development or excavation on site, care should be exercised in determining whether or not the subsurface structures contain asbestos. If they contain asbestos, they should be removed, handled, transported, and disposed of in accordance with local, state, and federal laws and regulations. Additionally, if suspect materials are encountered, the signatories of this report should be notified immediately. ` • Due to the past and current agricultural use of the site and from information received from the San Joaquin County Agricultural Commissioners Office, environmentally L persistent pesticides may be present onsite. Due to the proposed use of the site, Kleinfelder recommends shallow soil sampling for the site, prior to development. L • An irrigation canal, dividing the site into northern and southern portions was observed in the central portion of the site. According to Mr. Spatafore the canal was built in the mid 1930's to 1940's and that water from the canal is pumped via underground irrigation lines Lto the crops. The irrigation canal is not expected to have an adverse impact on the site and id to be abandoned as part of the development. L • Three aboveground storage tanks (AST's) are located along the northeastern bank of the irrigation canal, in the eastern portion of the site. According to Mr. Spatafore, these tanks L are used to hold diesel and gasoline fuel for vehicles. Staining was observed on the soil underneath the tanks and around the fill nozzles. The tanks do not have secondary containment, Kleinfelder recommends that the tanks be removed in accordance to local, State and Federal regulations. Kleinfelder also recommends that soil sampling be ` conducted underneath the tanks to check for possible soil contamination. L • Several mobile fertilizer tanks were observed throughout the site, in the row crop areas. The tanks all appear to be in good working condition and there is no evidence of leakage or staining on or around the tanks. According to Mr. Spatafore, the fertilizers are not L stored onsite and that the fertilizer tanks are rented from JR Simplot on a seasonal basis. The mobile fertilizer tanks are not expected to have an adverse impact on the site. • A large soil pile and a wet area are located along the northeastern edge of the site. LAccording to Mr. Spatafore, the wet area is a settling pond that is used to extract excess topsoil out of irrigation water before it is returned to the irrigation canal. Mr. Spatafore stated that this is done so that the silt does not clog up the canal. According to Mr. LSpatafore, the soil is piled up around the settling pond area until it is later spread out over another portion of the site. To the best of Mr. Spatafore's knowledge nothing hazardous has been dumped into the pond. Although the settling pond and soil pile are not expected 6 to have an adverse impact on the site, Kleinfelder recommends that the settling pond area L 21073.P01 /ST02R761 Page 27 of 31 Copyright 2002 Kleinfelder,Inc. November 12,2002 L