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I <br /> I <br /> Guardino — Crawford Company September 2013 <br /> 517 West Fremont Street , Stockton <br /> Claim No : 14349 <br /> b. Has a site-specific risk assessment for the vapor intrusion pathway ❑ Yes ❑ No ❑X NA <br /> been conducted and demonstrates that human health is protected to e <br /> the satisfaction of the regulatory agency? <br /> c. As a result of controlling exposure through the use of mitigation <br /> measures or through the use of institutional or engineering ❑ Yes ❑ No ❑X NA <br /> controls, has the regulatory agency determined that petroleum <br /> vapors migrating from soil or groundwater will have no significant <br /> risk of adversely affecting human health ? <br /> 3. Direct Contact and Outdoor Air Exposure : <br /> The Site is considered low-threat for direct contact and outdoor air exposure <br /> if site-specific conditions satisfy one of the three classes of sites (a through <br /> C) . <br /> a. Are maximum concentrations of petroleum constituents in soil less ❑X Yes ❑ No ❑ NA <br /> than or equal to those listed in Table 1 for the specified depth below <br /> ground surface ( bgs) ? <br /> b. Are maximum concentrations of petroleum constituents in soil less <br /> than levels that a site specific risk assessment demonstrates will ❑ Yes ❑ No O NA <br /> have no significant risk of adversely affecting human health ? <br /> c. As a result of controlling exposure through the use of mitigation <br /> measures or through the use of institutional or engineering ❑ Yes ❑ No ❑X NA <br /> controls, has the regulatory agency determined that the <br /> concentrations of petroleum constituents in soil will have no <br /> significant risk of adversely affecting human health ? <br /> i <br /> Page 5 of 12 <br />