Laserfiche WebLink
Geofogicaf Technics Inc <br /> 2741 XiverToad <br /> Modesto,Cahfornia 95351 <br /> (209)538-642415a'X#538-5852 ' <br /> Report j <br /> I <br /> Additional Site Characterization <br /> City of Escalon <br /> Former Arco Gas Mini Mart <br /> 1350 Esclon Ave. <br /> Escalon, CA <br /> Project No. 750.2 <br /> U January 31., 2000 <br /> Lill I <br /> 1.0 INTRODUCTION <br /> The site is located at 1350 Escalon Ave, Escalon, California in the Highway 120/McHenry <br /> Avenue Improvement Project. Figure I is a location map Figure and Fi 2 is a site . This <br /> map. <br /> property was previously an Arco Gas and Mini Mart. <br /> i <br /> Previous work at this site includes two limited soil borings, soil sample analysis, and the <br /> removal of the USTs and pump islands. During removal activities, soil samples were <br /> collected which showed the presence of BTEX, TPH-G and MTBE. <br /> On February 12 & 23, 1999 Geological Technics Inc. (GTI) drilled six boreholes, collected <br /> soil and groundwater samples (including one groundwater sample from each borehole via , <br /> hydropunch methods) and tested these samples for petroleum hydrocarbons. Analytical <br /> results show the presence of BTEX, TPH-G and oxygenated fuel compounds in the soil and <br /> groundwater. <br /> This report summarizes the additional soil investigative work conducted from April of 1999 <br /> through January of 2000. Three soil borings were drilled at the site and converted into <br /> groundwater monitoring wells. Four additional soil borings were drilled and converted into <br /> vapor extraction wells. Soil samples collected during the drilling of these wells show low to <br /> Z„ moderate levels of BTEX, TPH-G, MTBE and TBA in MW-1. Low levels of MTBE were <br /> detected in MW-2. Soil samples collected from VEW-1 showed low levels of Xylene, and f <br /> u <br /> MTBE. <br /> i <br /> f <br />