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G �cold ical nchtucs Inc. <br /> 1172 Kansas Ave. <br /> Modesto,California 95351 <br /> (209)522-4119/Fax(209)522-4227 <br /> www.gtienvxom <br /> Work Plan <br /> Confirmation Groundwater Sampling <br /> Mard Property <br /> ._; 2969 Loomis Road <br /> Stockton, California <br /> Project No. 770.2 <br /> February 28, 2011 <br /> 1. INTRODUCTION <br /> 1.1. Purpose & Goal <br /> The purpose of this Work Plan is to describe the tasks and procedures proposed to conduct <br /> conformational groundwater grab samples, sampling of selected monitoring wells and water <br /> supply wells per the San Joaquin County Public Health Services/Environmental Health <br /> Division (SJC PHS/EHD)directive dated January 11, 2011. <br /> The goal of this investigation is to develop the technical argument to demonstrate a low-risk <br /> status for the Site. <br /> 1.2. Site History <br /> ua <br /> nderground storage ta*containing diesel fuel was formerly located on the property — <br /> see Figures 1 & 2. A previous consultant, Wm. J. Hunter& Associates (WJH), installed four <br /> groundwater monitoring wells. in an effort to determine if diesel fuel had impacted <br /> groundwater. In 1992, diesel contamination was detected in groundwater at the Site. The <br /> SJC PHS/EHD subsequently directed that an investigation of the diesel release be initiated. <br /> Work performed to date is summarized below*: <br /> March 1987—Two 5,000 gallon diesel USTs removed. <br /> l f <br /> ' I <br />