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Identified Contamination Source Evaluation & Recommendations <br /> Lead- and asbestos-containing materials <br /> may be present in the barn. Demolition <br /> should be conducted in accordance with <br /> local, State, and Federal regulations <br /> A barn has been present on the regarding these constituents. Lead also <br /> 3 property since 1963 or earlier, it will may be present in the soil surrounding the <br /> be torn down in the near future. painted structure. The ground beneath <br /> (Current and past on-site) the structure may have been treated with <br /> environmentally persistent pesticides. <br /> The property owner should consider <br /> these possibilities before disturbing the <br /> soil in the area of the building footprint. <br /> An irrigation water pumping station <br /> is located on the Site. The station <br /> includes an above-ground diesel The container of oil has since been <br /> 4. tank and engine. An open container appropriately disposed. The tank <br /> of waste oil was observed, the appeared clean and well maintained. <br /> engine was being serviced at the <br /> time. (Current on-site) <br /> Agricultural chemical permits <br /> indicate that walnuts have been <br /> grown on the Site since 2005. <br /> Several chemicals have been <br /> applied to the site from 200 0 #vidence of violations of the <br /> through the present: permethrin, application permit was identified. The <br /> 5. oxyfluorfen, pendimethalm, owner should be aware that residues may <br /> flumioxazin, oryzalin, and remain even when chemicals are applied <br /> glyphosate, isopropylamine salt. No as permitted. <br /> Restricted Use Products were <br /> identified as having been applied to <br /> the Site. (Current and past on-site) <br /> EHD data indicates that <br /> groundwater wells within one mile of <br /> the Site have levels of nitrate as It appears that ground water in the area <br /> NO3 ranging from 20 to 135 ppm, has elevated levels of nitrate. There is no <br /> including five wells with levels at or well on the Site to test for nitrate and <br /> 6. above 45 ppm. The Maximum DBCP. When the new domestic weNis <br /> Contaminant Level (MCL) set by the drilled, the water should be tested for <br /> US EPA for nitrate as NO3 is 45 drinking water quality, including these <br /> ppm. No data for DBCP levels was constituents. <br /> available in the search area. <br /> (Current and past on- and off-site) <br /> LOGE0916 Page 7 <br />