Extended Bioventing Testing Results at Fire Training Area 2 (FTA-2), Patrick Air Force Base (AFB); and FTA-2 and Facility 1748, Cape Canaveral Air Force Station (AFS), Florida

摘要

Parsons Engineering Science, Inc. (Parsons ES) is pleased to submit the results of the extended bioventing testing at FTA-2, Patrick AFB, Florida; and FTA-2 and Facility 1748, Cape Canaveral AFS, Florida. Soil gas samples were collected and in situ respiration testing was performed by Parsons ES from 29 May to 2 June 1996 to assess the extent of remediation completed during approximately two years of air injection bioventing at these three sites. The purpose of this letter is to summarize site activities to date, present the results of the most recent respiration and soil gas sampling, and make recommendations based on site data. A site layout is attached for each of the three sites (Figures 1, 2, and 3), as are tables which summarize soil and soil gas analytical results and respiration and fuel biodegradation rates for the bioventing initiative and extended bioventing projects (Tables 1 through 9). In addition, a new monitoring point construction detail (Figure 4) is included for Facility 1748. Monitoring points at this site required modification (the addition of a shallow screened interval) to allow for soil gas sampling during the high water table conditions that currently exist.