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Delta <br /> I <br /> /. Environnsental <br /> . Consultants,Inc. <br /> I So[ving enmronment-related business problems wodldwide www deltaenv cam <br /> 9009 Mountain Ridge Dr • Suite I I0 <br /> Austro, Texas 78759 USA <br /> 512 990 7467 800 477 7411 <br /> Fax 512 990 7399 <br /> IJanuary 13, 2005 <br /> Mr Michael J Infurna, Jr Senior REHS <br /> San Joaquin County PHS <br /> Environmental Health Division <br /> 304 East Weber Avenue, Third Floor <br /> Stockton, California 95202 <br /> RE: 2004 Fourth Quarterly Monitoring Report <br /> Former Canteen Facility <br /> 1500 Shaw Road <br /> Stockton, California <br /> Site Code 1727 <br /> Delta Project No.: FA05-005-1 <br /> Dear Mr Infurna <br /> Delta Environmental Consultants (Delta, formerly Applied Earth Sciences, Inc ), was retained by <br /> Compass Group USA, Inc (Compass), to conduct quarterly groundwater gauging and sampling <br /> on the property located at 1500 Shaw Road in Stockton, California (Site) (Figure 1) This <br /> quarterly sampling event was conducted in order to provide a Quarterly Monitoring Report of the <br /> impacted groundwater at the Site, in accordance with State of California regulations <br /> PROJECT OBJECTIVES <br /> IThe objectives for the 2004 Fourth Quarterly Monitoring Report were to assess the <br /> concentrations of hydrocarbons in Site groundwater due to the former presence of underground <br /> storage tanks (USTs), assess the stability of the groundwater plume, and assess the impacts to the <br /> aquifer, if any, of the operating remediation system The following were conducted during this <br /> quarterly assessment <br /> i <br /> i <br /> • Gauged each Site monitor well (November 10, 2004) to evaluate the presence or absence of <br /> free product and to measure groundwater elevations Groundwater monitoring wells MW- <br /> 1, MW-2, MW-3, MW-3A, MW-3D, MW-4, MW-5, MW-7 through MW-13, MW-13A <br /> ;. and MW-1313 were gauged <br /> ti .of <br /> Inogen' <br /> I 4 <br />