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8.0 IDENTIFIED CONTAMINATION SOURCES <br /> The following sources of past, current, on-site, and off-site contamination have been <br /> identified as a result of this investigation: <br /> Identified Contamination Source Evaluation & Recommendations <br /> 1. The Site was developed for irrigated Agricultural chemicals may remain in Site <br /> agriculture in 1940 or earlier. Portions of soils. The only way to determine the <br /> the Site have been vineyard since 1963 presence or absence of these chemicals <br /> or earlier. (Current and past on-site) is by testing and analysis. Typically, any <br /> such testing is conducted at the property <br /> owner's discretion. <br /> 2. Surrounding properties are used for Agricultural chemicals continue to be <br /> agriculture. (Current and past off-site) applied to these sites. Assuming <br /> responsible application, no action is <br /> warranted at this time. <br /> 3. A domestic well, an irrigation well, and The wells and septic systems are <br /> two septic systems are located on the currently in use. <br /> Site. (Current on-site) <br /> 4. Two plastic tanks were observed by the The tanks appear to be in good condition. <br /> irrigation well. Mr. Burns indicated that <br /> these are used for adding fertilizer to the <br /> irrigation water. (Current on-site) <br /> 5. The northern house on the Site was Lead- and asbestos-containing materials <br /> constructed in 1976. (Current and past may be present in structures dating from <br /> on-site) the 1980s or earlier. Any remodeling or <br /> demolition should be conducted in <br /> accordance with local, State, and Federal <br /> regulations regarding these constituents. <br /> Lead also may be present in the soil <br /> surrounding these structures. The ground <br /> beneath the structures may have been <br /> treated with environmentally persistent <br /> pesticides. The property owner should <br /> consider these possibilities before <br /> disturbing soil in the area of the building <br /> footprint. <br /> LOGE 1406 Page 6 <br />