Laserfiche WebLink
' Work Plan—Soil Boring In'�allation Is Page 2 <br /> 612 N.Buena Vista Ave. <br /> Project 480.2 <br /> February 7, 2005 <br /> 2.0 PROPOSED INVESTIGATION <br /> ' The purposes of soil boring investigation are to assess environmental conditions <br /> associated with a former gasoline UST and to request an official closure <br /> certificate and to assess whether a concrete lined brine pit may have impacted <br /> the groundwater with salt. <br /> 2.1 Field Work <br /> 1 The field work associated with this work plan will consist of mobilizing to the <br /> site with a Geo-Probe drilling rig and advancing two soil borings at designated <br /> locations for the purpose of obtaining soil and groundwater samples. <br /> 2.1.1 Geo-Probe Soil Borings <br /> The 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 15 feet <br /> below grade. The borings, designated SB-1, SB-2 & SB-3 will be located at <br /> ' locations shown on the attached site map. <br /> Soil samples will be collected continuously from each boring. A groundwater <br /> ' 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 <br /> equipment owned and operated by V & W Drilling (C-57 License #720904). The <br /> borings will be advanced to a total depth of about 15 to 20 feet below grade. <br /> Upon reaching total depth in each boring and collecting a final soil and <br /> ' groundwater sample, the boring will be filled to grade with neat cement. <br /> The Geo-Probe is a truck mounted drilling system that uses direct push <br /> methodology to collect soil and groundwater samples. Four foot long by 1.5 inch <br /> diameter stainless steel rods are pushed or hammered into the ground using a <br /> hydraulic ram or the hydraulically actuated hammer mounted on the ram. Soil <br /> samples are collected using a 4-foot long by 1.5 inch inside diameter drive <br /> sampler lined with a plastic sample sleeve. <br /> 2.1.2 Geology <br /> A detailed log will be made of each boring. The information to be noted include <br /> such data as sample depths, soil / sediment type and description (color, texture, <br /> composition, hardness, moisture content, and post-depositional changes that <br /> have occurred in the sediments), and horizons of detectable contamination <br /> (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 />