April 2015

NFSP-2015-TD01

This report provides the results of a review conducted by the Office of Nuclear Safety (EHSS-30) of the implementation of periodic Natural Phenomena Hazards (NPH) assessment reviews by sites reporting to the National Nuclear Security Administration (NNSA), and the Offices of Environmental Management, Nuclear Energy, and Science.

The purpose of this review effort was to determine and evaluate the current field practices, their effectiveness, and identify any challenges in executing the Department of Energy (DOE) requirement for periodic reviews of NPH assessments. From this information, recommendations have been developed that will be useful to DOE, including NNSA, Program and Site Offices in conducting future periodic reviews of NPH assessments in a consistent, graded and acceptable manner.