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below, where the criteria of the Low-Threat Policy is presented in bold and the corresponding Facility <br /> conditions are identified in regular font,the Facility meets the criteria. <br /> A. The unauthorized release is located within the service area of a public water system. <br /> The Facility and adjacent properties are serviced by a municipal water supply(see Section 4.2). <br /> B. The unauthorized release consists only of petroleum. <br /> Gasoline- and diesel-range hydrocarbons are the only known releases at the Site (see <br /> Section 2.4). <br /> C. The unauthorized release has been stopped. <br /> Unauthorized releases at the terminal have been stopped and appropriate repairs have been made <br /> (see Section 2.4). <br /> D. Free product has been removed to the maximum extent practicable. <br /> SPH has not been observed in Site monitoring wells since 2006. <br /> E. A conceptual site model that assesses the nature, extent and mobility of the release has <br /> been developed. <br /> A CSM was submitted in the Investigation Summary Report(Ash Creek, 2012a) and is included as <br /> Section 4.0 of this report. <br /> F. Secondary sources have been removed to the extent practicable. <br /> Impacted soil has been removed to the extent practicable(see Section 2.6) <br /> G. Soil or groundwater has been tested for MTBE and results reported in accordance with <br /> Health and Safety Code section 25296.15. <br /> Results for MTBE in groundwater are included in Table 3. <br /> H. Nuisance as defined by Water Code section 13050 does not exist at the site. <br /> Nuisance does not exist on site. <br /> Determination of Proposed Cleanup Goals. Cleanup goals for the Facility were evaluated within the <br /> context of the Low-Threat Policy. The Low-Threat Policy requires that candidate sites meet media-specific <br /> criteria for vapor, soil, and groundwater. As identified by the Site Conceptual Model (Figure 16 and <br /> Section 4.0), vapor intrusion is not a complete exposure pathway. Soil and groundwater direct contact by <br /> excavation and/or construction workers is a potentially complete exposure pathway in the historical release <br /> area near Tank 3302. Potential risk from direct contact to soil or groundwater by excavation or construction <br /> workers can be mitigated through proper training and engineering controls in the event of future <br /> maintenance or construction activities in the area of Tank 3302. Therefore, because the Facility meets the <br /> qualifications of the Low-Threat Policy and the media-specific criteria for vapor and soil direct contact have <br /> Revised Cleanup Plan Page 17 <br /> NuStar Stockton Terminal-Stockton,California <br /> November 7,2012 <br /> 1014-12 <br />