2019 Groundwater Monitoring Report Project Shoal Area: Subsurface Corrective Action Unit 447
The Project Shoal Area is a site in Nevada where an underground nuclear test was conducted in 1963. It later came to be known as the Shoal, Nevada, Site. Surface contamination at the site has been remediated, but investigation of groundwater contamination resulting from the test is still in the corrective action process. Annual sampling and water-level monitoring are conducted as part of the subsurface corrective action strategy, which has focused on revising the site conceptual model and evaluating the adequacy of the monitoring well network. It has also included enhancements to the monitoring well network to address uncertainties in the groundwater flow direction and the cause of rising water levels in site wells west of the shear zone since the first hydrologic characterization (HC) wells were installed in 1996. Revisions to the site conceptual model and enhancements to the monitoring strategy were provided to Nevada Division of Environmental Protection (NDEP) in the Addendum to: Corrective Action Decision Document/Corrective Action Plan (CADD/CAP) for the Subsurface Corrective Action Unit 447 Shoal, Nevada, Site. NDEP approved the addendum to the CADD/CAP, which included an expanded contaminant boundary and compliance boundary for the site.
- Research Organization:
- Navarro Nevada Environmental Services (NNES), Las Vegas, NV (United States)
- Sponsoring Organization:
- USDOE Office of Legacy Management (LM)
- DOE Contract Number:
- LM0000421
- OSTI ID:
- 2229273
- Report Number(s):
- LMS/SHL/S28163
- Country of Publication:
- United States
- Language:
- English
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2015 Groundwater Monitoring Report Project Shoal Area: Subsurface Correction Unit 447
Well Completion Report for Corrective Action Unit 447, Project Shoal Area, Churchill County, Nevada, Rev. No.: 0