Completion of One Year Bioventing Test, Hill AFB, UT, Sites 204.1, 214. 1, 228, and 924

摘要

The Air Force Center for Environmental Excellence (AFCEE) one-year bioventing test and evaluation project at the above sites has been completed. Each site-specific Figure 1 provides general site information and each site- specific Table 1 provides a summary of initial, six-month, and one-year fuel biodegradation rates measured at several monitoring points. Each site-specific Table 2 provides a summary of initial and final soil and soil gas sampling results for total recoverable petroleum hydrocarbons (TRPH) and benzene, toluene, ethylbenzene, and xylenes (BTEX). Based on results from your sites and 109 other sites currently under operation, bioventing is cost-effectively remediating fuel contamination in a reasonable time frame. We recommend its application on your installation using the criteria in the AFCEE Test Plan and Technical Protocol for a Field Treatability Test for Bioventing, May 1992, including Addendum One, February 1994. Given the results from the rigorous testing and evaluation of bioventing at Site 914, AFCEE Bioventing Initiative sites, and base installed bioventing sites, it is obvious that bioventing is a viable remedial alternative that can meet regulatory site closure requirements. AFCEE/ERT recommends that the above sites be slated for final soil sampling in support of site closure.