Assessing UST Corrective Action Technologies: Diagnostic Evaluation of In situSVE-Based System Performance

摘要

The objective of the report summarized here is to present the data, methods, andtools required for evaluating the performance of in situ systems for cleaning up leaking underground storage tanks sites. The five test procedures presented herein can be used as diagnostic tools to evaluate in situ remediation performance. Three of the procedures are tracer tests that can be used to evaluate air flow in the subsurface (SVE air flow, IAS air recovery, and IAS air distribution). The tracer tests are new procedures that have been tested at a small number of sites and can be expected to undergo revision to improve their diagnostic capabilities.The other two procedures are designed to evaluate biodegradation in the subsurface (bioventing and natural attenuation).