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Title: Submittal of Final Post-Closure Inspection Letter Report for Corrective Action Unit 91: Area 3 U-3fi Injection Well, Nevada Test Site, Nevada, Revision 0, December 2007

Technical Report ·
DOI:https://doi.org/10.2172/926203· OSTI ID:926203

This letter serves as the post-closure monitoring letter report for the above Corrective Action Unit (CAU) for calendar year 2007. CAU 91 is inspected every six months. The first inspection was conducted on March 29,2007, and the second inspection was conducted on September 27, 2007. Vegetation growth around the edge of the aboveground monument concrete pad was observed during the March inspection. This vegetation was removed on May 24,2007. All access roads, fences, gates, and signs were in excellent condition. No settling, cracking, or erosion was observed on the cover, and the use restriction had been maintained. No issues were identified, and no corrective actions were needed as a result of the September inspection. The post-closure inspection checklists for CAU 91 are attached. Photographs and field notes taken during site inspections are maintained in the project files.

Research Organization:
National Security Technologies, LLC (NSTec), Mercury, NV (United States)
Sponsoring Organization:
USDOE - National Nuclear Security Administration (NNSA)
DOE Contract Number:
DE-AC52-06NA25946
OSTI ID:
926203
Report Number(s):
DOE/NV-1037-LR; DOE/NV/25946-368; TRN: US200812%%465
Country of Publication:
United States
Language:
English