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West Clay Properties January 2014 <br /> 639 West Clay Street <br /> Claim No: 8542 <br /> a. Do site-specific conditions at the release site satisfy all of the []Yes ❑ No ® NA <br /> applicable characteristics and criteria of scenarios 1 through 3 or all <br /> of the applicable characteristics and criteria of scenario 4? <br /> If YES, check applicable scenarios: ❑ 1 ❑ 2 ❑ 3 ❑ 4 <br /> 1 b. Has a site-specific risk assessment for the vapor intrusion pathway ❑ Yes ❑ No ® NA <br /> been conducted and demonstrates that human health is protected to <br /> the satisfaction of the regulatory agency? <br /> c. As a result of controlling exposure through the use of mitigation ❑ Yes ❑ No ® NA <br /> measures or through the use of institutional or engineering <br /> controls, has the regulatory agency determined that petroleum <br /> vapors migrating from soil or groundwater will have no significant <br /> risk of adversely a fecting 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 ® 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 ❑ Yes ❑ No ® NA <br /> than levels that a site specific risk assessment demonstrates will <br /> have no significant risk of adversely affecting human health? <br /> c. As a result of controlling exposure through the use of mitigation ❑ Yes ❑ No ® NA <br /> measures or through the use of institutional or engineering <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 /> Page 6 of 14 <br />