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Comfort Air • • October 2013 <br /> 1607 Turnpike Road, Sto kton <br /> Claim No: 15533 <br /> b. Has a site-specific risk assessment for the vapor intrusion ❑ Yes D No O NA ;' <br /> pathway been conducted and demonstrates that human health is <br /> protected to the satisfaction of the regulatory agency? <br /> c. As a result of controlling exposure through the use of mitigation ❑ Yes ❑ No ❑X NA <br /> measures or thr ugh 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 adverse[ ffectina human health? <br /> 3. Direct Contact and Outdoor Air Exposure: <br /> The Site is considered low-threat for direct contact and outdoor air <br /> exposure if site-specific conditions satisfy one of the three classes of sites <br /> (a through c). <br /> a. Are maximum concentrations of petroleum constituents in soil ❑ Yes ❑ No © NA <br /> less than or equal to those listed in Table 1 for the specified depth <br /> below ground su ace (bgs)? <br /> b. Are maximum co centrations of petroleum constituents in soil O Yes ❑ No ❑ NA <br /> less than levels t iat a site specific risk assessment demonstrates <br /> will have no sign ficant risk of adversely affecting human health? <br /> c. As a result of cot trolling exposure through the use of mitigation ❑ Yes ❑ No ® NA <br /> measures or thro igh the use of institutional or engineering <br /> controls, has the regulatory agency determined that the <br /> concentrations o petroleum constituents in soil will have no <br /> significant risk of adversely affecting human health? <br /> Page 5 of 13 <br />