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3 <br /> McDowell& Davis Towing <br /> Quarterly Groundwater Sampling Report August 2002 <br /> Page: 3 <br /> Environmental Health Department (SJCEHD) in an August 6, 2002 review letter <br /> requested additional information on the Risk Based Corrective Action Modeling used in <br /> the risk assessment. The SJCEHD observed that current site usage may cause benzene <br /> vapor releases that exceed the established exposure standards making the additional <br /> projected risk minimal. As response to the August 6, 2002 review letter is in preparation. <br /> Quarterly groundwater monitoring to verify plume stability and degradation prior to <br /> closure of the site will continue. <br /> The above represents our best professional opinion as to environmental conditions at this <br /> site. These opinions were derived using data at hand, and standards of care common to <br /> the environmental consulting community in Northern California. There is the possibility <br /> that even with proper application of the above methodologies, there may exist on the <br /> subject property conditions that could not be identified within the scope of this sampling <br /> work or which were not reasonably identifiable from the available information. The <br /> methodologies included in this report are not intended to produce all inclusive or <br /> comprehensive results, but rather to provide the client with information regarding <br /> apparent suspicions of existing and potential adverse environmental conditions relating to <br /> the subject property. Additional work at this site may generate data that could lead to a <br /> change of opinion regarding conditions or appropriate remedial procedures or both. <br /> Prepared by: �c�) r,4 PTcc <br /> J 1 <br /> Robert Fourt, CHG <br /> Certified Hydrogeologist#180 <br /> £OVI itONAMF <br /> Michael I Kloberdanz, A,REHS W.42157 <br /> California Registered Environmental Assessor#02157 <br /> California Registered Environmental Health Specialist#4783 Expires: <br /> eryT�OF 1.i1 <br /> 0 <br /> ��� <br />