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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 I <br /> Portions of the Site were developed Agricultural chemicals may remain in Site <br /> for agriculture in 1983 or earlier. soils from current and past uses. The <br /> The Site was recently planted with only way to determine the presence or <br /> 1. vineyard. One portable spray tank absence of these chemicals is by testing <br /> was observed near the irrigation and analysis. Typically, any such testing <br /> well. (Current and past on-site) is conducted at the property owner's <br /> discretion. <br /> Agricultural chemical permits <br /> indicate that the Site has been used <br /> to grow grapes from 2007 through No violations of the application permit <br /> the present. Two of the chemicals were identified for the past five years. <br /> 2. applied to the Site, paraquat The owner should be aware that residues <br /> dichloride and fenpropathrin, are may remain even when chemicals are <br /> included in the US EPA's list of formulated and applied as permitted. <br /> Restricted Use Products. (Current <br /> and past on-site) <br /> The surrounding properties on all Assuming responsible application of <br /> 3 sides of the Site are agricultural agricultural chemicals, no action is <br /> land, primarily vineyards and warranted- <br /> orchards. (Current and past off-site) <br /> 4 One irrigation well is located on the The irrigation well is currently in use. <br /> Site. (Current on-site) <br /> Mr. Kautz indicated that, prior to his The function and original location of the <br /> ownership, a windmill may have windmill are unknown. Underground <br /> 5. been located on the Site; he <br /> observed it lying on the ground. infrastructure may exist from this past <br /> (Past on-site) use. <br /> Based on information from the <br /> California Department of Oil, Gas, Because these wells were dry holes and <br /> and Geothermal Resources, two oil are located some distance from the Site, <br /> 6. or gas wells were identified within no impact to the Site is anticipated. <br /> one-quarter mile of the Site. Both <br /> are plugged, dry holes. (Past off- <br /> site) <br /> LOGE 1129 Page 7 <br />