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6.0 CONCLUSIONS ' Based upon the data collected during the Phase I ESA and the field investigation of the subject property, the following conclusions have been developed: • Zions Bank holds a secured interest in the subject property and authorized the LSI of the site to evaluate the environmental conditions of the real property collateral and the potential for the operations of the mortgagor (J & D Trust), historic site uses, and/or off-site facilities to have adversely impacted the environmental condition of the subject property. The LSI was performed as a part of the environmental due diligence associated with potential enforcement of a secured interest in the subject property. Analytical results and analysis are limited to the locations sampled during this ' LSI, and may or may not be representative of more widespread environmental conditions of the site and/or site vicinity. • Soils encountered at the subject property consisted predominantly of a fine-grained sand and silt with ' varying clay content,but appears more or less homogenous across the site. • Detected concentrations of arsenic in soil samples were reported at concentrations above the comparable ESLs as well as the applicable RSLs. However,it appears that the reported arsenic levels identified on the site are within reported background concentrations found throughout California. The concentrations of arsenic in the soil samples collected from various locations across the site and ' analyzed appeared to be more or less consistent without significant variation suggestive of a potential source(s) of contaminant or primary area(s) of concern. Additionally, the entirety of the subject property is covered by buildings, concrete foundations, and/or asphalt, which generally serves as a ' confining cap and preventing direct exposure. As such, arsenic in the soil samples from the site appeared to be within background concentrations; and relatively immobile in the subsurface due to the presence of a confining cap,which also prevents direct contact and exposure to soils at the site. ' Laboratory analysis of soil samples identified concentrations of TPH-DRO at 2,900 mg/kg in B3-S 1; 1,700 mg/kg in B3-S2; 12 mg/kg in B3-S3; and 410 mg/kg in B4-S1. The detected concentrations of TPH-DRO, with the exception of B3-S3, were reported at concentrations above the comparative ESL ' of 183 mg/kg for industrial sites where groundwater is not a current or potential source of drinking water. The RSLs do not include a regulatory level for TPH-DRO. ' Soil samples with elevated concentrations of TPH-DRO were generally collected from areas adjacent to in-ground lifts/hoists within service/work bays in the northwestern and southwestern portions of service shop. The in-ground lifts/hoists were reportedly installed in more than 30 years ago. Based upon soil sampling data, it appears that leakage of hydraulic fluids from the in-ground lifts/hoists has occurred and impacted the near soils in the areas about the in-ground lifts/hoists at depths generally ranging from 6 to 12 feet bgs. The lateral extent of the hydraulic fluid impacted soils was not defined by this investigation. In addition, the source(s) of hydraulic fluid was also not identified by this investigation, but may include; a lack of integrity in the hydraulic fluid reservoir; leakage through gaskets about mechanical elements of the lifts/hoists; and/or releases from connective piping between the hydraulic fluid reservoir and pressurized mechanical elements of the lifts/hoists. ' The reported concentrations of TPH-DRO in soil samples collected from Borings B3 and B4 were above the comparative ESLs and would be considered a`reportable condition' for the site. Therefore, the San Joaquin County Environmental Health Department has been notified regarding the reported ' concentrations of TPH-DRO adjacent to the in-ground lifts/hoists in service shop. ' Limited Subsurface Investigation (J&D Trust)J&D Auto Body 8 f+UCrl� 1011 Cherokee Lane, Lodi, California