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Work Plan—Soil Boring Instaiiation Page 2 <br /> Wagner Land Company Property <br /> Project 301.2 <br /> June 13, 2001 <br /> 2.1 Field Work <br /> The field work associated with this work plan will consist of mobilizing to the site with a Geo- <br /> Probe drilling rig and advancing three soil borings at designated locations for the purpose of <br /> obtaining soil and groundwater samples. <br /> 2.1.1 Geo-Probe Soil Borings <br /> A group of three Geo-Probe soil borings will be advanced to a depth sufficient to penetrate <br /> the surface of groundwater. This is estimated to lie at a depth of about 10 feet. The borings, <br /> designated SB-1, SB-2, & SB-3 will be located a widely spaced locations as shown on the <br /> attached site map. <br /> Soil samples will be collected at 5-foot intervals in each boring and at the base of each boring. <br /> A groundwater sample will also be collected from the base of each boring. <br /> The soil borings will be drilled using 1.5" outside diameter Geo-Probe drilling equipment <br /> owned and operated by V & W Drilling (C-57 License #720904). The borings will be <br /> advanced to a total depth of about 10 to 15 feet below grade. Upon reaching total depth in <br /> each boring and collecting a final soil and groundwater sample, the boring will be filled to <br /> grade with neat cement. <br /> The Geo-Probe is a truck mounted drilling system that uses direct push methodology to <br /> collect soil and groundwater samples. Four foot long by 1.5 inch diameter stainless steel rods <br /> are pushed or hammered into the ground using a hydraulic ram or the hydraulically actuated <br /> hammer mounted on the ram. Soil samples are collected using a 1.5 foot long by 1.5 inch <br /> inside diameter drive sampler lined with a plastic sample sleeve. This device is activated by <br /> removing a retaining bolt from the top of the device by inserting rods through the hollow stem <br /> of the probe rods. Removing this retaining bolt allows the drive point to retract through the <br /> sampling tube and a sample to be collected. <br /> 2.1.2 Geology <br /> A detailed log will be made of each boring. The information to be noted include such data as <br /> sample depths, soil / sediment type and description (color, texture, composition, hardness, <br /> moisture content, and post-depositional changes that have occurred in the sediments), and <br /> horizons of detectable contamination (detected by field methods). <br /> 2937 Veneman Avenue, Suite B240 Geo-Phase Environmental Inc. Phone: (209) 569-0293 <br /> Modesto, Ca 95356 Fax: (209)569-0295 <br />