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This confirmation sampling and analysis plan (SAP) is intended to guide soil, soil gas, and groundwater sampling at Spill Site No. 1 to document the effectiveness of bioventing for the remediation of petroleum-hydrocarbon-contaminated soils and to provide data for a risk-based assessment of contaminants remaining in site soils and groundwater. Spill Site No. 1 is the location of a release of jet fuel from former underground storage tanks (USTs) and/or associated product piping. The site is part of a solid waste management unit (SWMU) that includes the former UST system fuel pipeline and several other sites. Closure activities for this entire SWMU will be performed by Haliburton NUS (HNUS) at a later date. The objective of the confirmation sampling described in this SAP is to document the effectiveness of soil remediation at Spill Site No. 1 and to demonstrate compliance with ASTM (1995) RBCA guidance for future site closure. The proposed confirmation sampling described in Section 4 targets vadose zone soils, soil gas, and groundwater in the vicinity of former Pumphouse No. 4. Soil and groundwater data will be used to prepare a streamlined risk-based assessment of remaining petroleum hydrocarbon contamination at the site, and groundwater data also will be used to evaluate the rate of natural chemical attenuation occurring in groundwater. The sampling effort is being performed as part of the AFCEE Extended Bioventing project. It is anticipated that analytical results will support an Air Force-directed no-further-response-action-planned (NFPAP) decision for this site. This SAP consists of nine sections, including this introduction.