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Site Name: 7-Eleven#14117 Site Address: 2725 Country Club Boulevard, Stockton, CA For sites with releases that have not affected groundwater, do mobile constituents (leachate, vapors, or light non-aqueous phase liquids) ❑ Yes ❑ No ® NA contain sufficient mobile constituents to cause groundwater to exceed the groundwater criteria? 2. Petroleum Vapor Intrusion to Indoor Air: The site is considered low-threat for vapor intrusion to indoor air if site-specific conditions satisfy all of the characteristics of one of the three classes of sites (a through c) or if the exception for active commercial fueling facilities applies. Is the site an active commercial petroleum fueling facility? ❑ Yes ® No Exception: Satisfaction of the media-specific criteria for petroleum vapor intrusion to indoor air is not required at active commercial petroleum fueling facilities, except in cases where release characteristics can be reasonably believed to pose an unacceptable health risk. a. Do site-specific conditions at the release site satisfy all of the ©Yes ❑ No ❑ NA applicable characteristics and criteria of scenarios 1 through 3 or all of the applicable characteristics and criteria of scenario 4? If YES, check applicable scenarios: ❑ 1 ❑ 2 © 3 ❑ 4 b. Has a site-specific risk assessment for the vapor intrusion pathway been conducted and demonstrates that human health is protected to ❑ Yes ❑ No ® NA the satisfaction of the regulatory agency? c. As a result of controlling exposure through the use of mitigation measures or through the use of institutional or engineering controls, has the regulatory agency determined that petroleum ❑ Yes El No ® NA vapors migrating from soil or groundwater will have no significant risk of adversely affecting human health? 3. Direct Contact and Outdoor Air Exposure: The site is considered low-threat for direct contact and outdoor air exposure if site-specific conditions satisfy one of the three classes of sites (a through c). a. Are maximum concentrations of petroleum constituents in soil less ® Yes ❑ No ❑ NA than or equal to those listed in Table 1 for the specified depth below ground surface (bgs)? b. Are maximum concentrations of petroleum constituents in soil less ❑ Yes ❑ No ® NA than levels that a site specific risk assessment demonstrates will have no significant risk of adversely affecting human health? c. As a result of controlling exposure through the use of mitigation ❑ Yes ❑ No ® NA measures or through the use of institutional or engineering controls, has the regulatory agency determined that the concentrations of petroleum constituents in soil will have no significant risk of adversely affecting human health? Page 2 of 2