Stations 404 and 405 are along the northern and eastern boundary fence, respectively, at Clean Slate II. Stations 401 and 403 are located on the northern and southeastern more » perimeter fence lines, respectively, of the Clean Slate III site. Station 400, located within TTR Area 3 and near the ROC, monitors conditions near the local workforce center. The monitoring program in 2019 included five stations.

The main objectives of the monitoring effort are to support the DOE Environmental Management Nevada Program (EM NV) in the safe remediation of the environmental legacy of nuclear device development and testing by determining if wind blowing across the Clean Slate sites is transporting particles of radionuclide-contaminated soil beyond the physical and administrative boundaries of the sites, and providing information for designing long-term monitoring of the sites. This report documents observations made during ongoing monitoring of radiological, meteorological, and dust conditions at stations installed adjacent to the Clean Slate sites and at the TTR Sandia National Laboratories (SNL) Range Operations Center (ROC). This operation resulted in radionuclide-contaminated soils at the Double Tracks site and Clean Slate I, II, and III sites.

Department of Energy (DOE) (formerly the Atomic Energy Commission ), implemented Operation Roller Coaster on the Tonopah Test Range (TTR) and an adjacent area of the Nevada Test and Training Range (NTTR) (formerly the Nellis Air Force Range).

Blank Slate by Tiffany Snow