Final Site Closure Report for Site ST71, Elmendorf Air Force Base, Alaska
Abstract
During the past 3 years, Elmendorf Air Force Base (AFB), Alaska has participated in the Air Force Bioventing Pilot Test Initiative project. Sponsored by the Air Force Center for Environmental Excellence (AFCEE) at Brooks AFB, Texas, the project has involved conducting more than 135 in situ bioventing pilot tests at 48 Air Force installations throughout the United States (US). These tests were designed to collect data on the effectiveness of bioventing for the remediation of soil contaminated with fuel hydrocarbons (e.g., JP-4 jet fuel, diesel fuel, gasoline, or heating oil). Three-year-long bioventing pilot tests have recently been concluded at four fuel-contaminated Elmendorf AFB sites, including Site ST71 (Building 31-338), a former underground storage tank (UST) site. This closure report for Site ST71 has been prepared by Parsons Engineering Science, Inc. (Parsons ES) in keeping with the corrective action plan (CAP) for Site ST71 (US Air Force, 1995a) to support a "no further action" recommendation for vadose zone soils at Site ST71. This recommendation is based on analytical results obtained through implementation of a site-specific closure sampling and analysis plan (SAP) (Parsons ES, 1996). The closure SAP was reviewed and approved by Alaska Department of Environmental Conservation (ADEC) staff prior to implementation. A copy of the SAP is provided as Appendix A. The closure SAP presented a plan for confirmatory soil sampling and analysis to document the effectiveness of soil remediation at the site and to demonstrate compliance with regulatory requirements for closure of the vadose zone soils. Attainment of these regulatory cleanup standards, which are summarized in Table 1.1, signifies that the remediation of vadose zone soils through in situ bioventing has been completed, and that no further action is necessary.
Document Details
- Document Type
- Technical Report
- Publication Date
- Nov 01, 1996
- Accession Number
- ADA382154
Entities
Organizations
- Parsons Corporation