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Final Status Survey & Property Release

At this stage of your remediation project, you’ve done the heavy lifting of the decontamination process and your site is almost ready to be released. To help you ensure the site meets regulatory guidelines for property release, ORAU provides final status survey services designed to satisfy site-specific data quality and data assessment objectives. Radiological surface scans, measurements and sample data collected by our health physics experts during the final status survey are used to confirm that all release criteria conditions have been satisfied, and that potential risks from residual contamination and small areas of elevated activity are below the derived concentration guideline levels.

As one of the remaining steps before property release, the final status survey can be planned using data from reviews previously conducted in the radiation survey and site investigation process. These surveys include scoping, characterization and remedial action support surveys. ORAU’s experts also rely on MARSSIM’s systematic sampling approach to execute an accurate final status survey of your site.

What our customers are saying

“The expertise, tenacity, flexibility and patience of ORAU contributed significantly to the quality and timeliness of closure project deliverables.” -Columbus Closure project director

“The painstaking review of the characterization data and attention to detail resulted in a potential cost savings, as well as an improvement in remedial activities. ORAU's performance is highly commendable.” -DOE division director in a letter to ORAU's program director

Two health physicists conducting radiological contamination assessment

Implementing MARSSIM

ORAU was a key contributor to writing the Multi-Agency Radiation Survey and Site Investigation Manual (MARSSIM) and later created the first MARSSIM training course. The development of MARSSIM was sponsored by U.S. Department of Defense, U.S. Department of Energy, U.S. Environmental Protection Agency and U.S. Nuclear Regulatory Commission to provide radiological survey guidance. MARSSIM outlines methods for planning, implementing and evaluating radiological surveys to best meet dose- or risk-based regulations.

Learn more about our MARSSIM training course

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Contact us

For more information about contracting with ORAU, contact Kathy Rollow at 865.574.4390 or