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Lodi Unified,School District <br /> 820 S. Cluff Avenue, Lodi, California <br /> Environmental Assessment Work Plan <br /> -J <br /> 1.0 Project Identification <br /> This scope of work has been developed in order to determine the extent of contamination <br /> associated with a pressurized underground hydraulic oil line leak at the school bus yard <br /> located at 820 S. C1uffAvenue, in Lodi, California (Figure 1). The project involves slant <br /> soil borings and sampling in the paint booth area of the Maintenance Shop. <br /> 2.0 Site Description and History <br /> Located on the property is the Lodi Unified School District's Vehicle Maintenance Shop <br /> which includes a paint spray booth, wash down area, and service bays. <br /> Until recently, an above ground hydraulic oil tank and pump were located just outside the <br /> Spray Booth (Figure 2). A pipeline ran under the Spray Booth, from the pump to the <br /> hydraulic lifts located in the Maintenance Shop. When hydraulic oil began surfacing <br /> through the cracks in the concrete floor of the Spray Booth the system was disconnected <br /> and moved inside the Maintenance Shop. The extent of the release is currently unknown. <br /> 3.0 Site Work Plan <br /> This phase of the investigation will provide for two (2) soil borings using a mobile <br /> mounted drilling rig employing the use of a hollow stem flight auger. One boring will be <br /> located outside the Spray Booth, in the area of the former tank, and will be drilled at an <br /> -� angle under the Spray Booth to a depth that will determine the vertical limits of <br /> contamination. Another boring will be drilled inside the Spray Booth adjacent to the <br /> underground pipeline. Soil samples will be collected at five foot intervals from each <br /> boring to characterize geology. At least two soil samples, per boring, will be submitted to <br /> the laboratory for analysis. Drill cuttings will be containerized on site. <br />