Assessing UST Corrective Action Technologies: Site Assessment and Selection of Unsaturated Zone Treatment Technologies

摘要

A methodology is presented for evaluating the likely effectiveness of five soil treatment technologies at sites where petroleum products have contaminated the unsaturated zone. The five soil treatment technologies are: soil venting, biorestoration, soil flushing, hydraulic barriers, and excavation. The evaluation consists of a site assessment, selection of a treatment technology, and performance monitoring and follow-up measurements. The overall focus of the manual is on making a preliminary screening of what soil treatment technologies would likely be effective at a given underground storage tank site. Factors that are critical to the successful implementation of each technology are presented and site conditions which are favorable for each factor are discussed.