Underground Storage Tanks

Risk-Based Decision-Making Performance Assessment Study

The American Society for Testing and Materials (ASTM) under an assistance agreement with U.S. EPA-OUST is conducting a research effort to assist state and territorial environmental regulatory agencies with the evaluation their RBDM corrective action programs performance for Leaking Underground Storage Tanks (LUST). This evaluation will help to determine whether RBDM programs are achieving their state agency management goals. The study is reviewing five individual state programs which have augmented their existing programs with RBDM and will evaluate the impact of RBDM on overall program performance. A series of bulletins will report on the progress of the study and summarize the successes and challenges of these programs which may assist other State programs that are implementing or considering RBDM programs.

• Bulletin #1: Study Background, Potential Performance Measures and Preliminary Findings
  This bulletin describes the Risk-Based Decision-Making (RBDM) Performance Assessment Study, provides an overview of potential performance criteria that may be useful for states evaluating RBDM-based Leaking Underground Storage Tank corrective action programs, and details preliminary study findings.
  • Bulletin #1 (PDF) (6 pp, 63K, About PDF)

• Bulletin #2: Study Results and Recommendations for RBDM Program Performance Monitoring
  This bulletin describes EPA's and ASTM's efforts to assist state and territorial environmental regulatory agencies with the evaluation their RBDM corrective action programs performance for Leaking Underground Storage Tanks. The effort reviewed five individual state programs which have augmented their existing programs with RBDM and evaluated the impact RBDM has made on overall program performance. Bulletin # 2 presents the results of the study, evaluates the findings and provides general recommendations for other state and territorial agencies interested in tracking the performance of their RBDM programs.
  • Bulletin #2 (PDF) (11 pp, 249K, About PDF)
  • Two-page flyer describing Bulletin #2 (PDF) (2 pp, 2MB, About PDF)
  • Memo from Sammy Ng (PDF) (2 pp, 2MB, About PDF)

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