Estimation of Groundwater Flow Through Yucca Flat Based on a Multiple-Well Aquifer Test at Well ER-6-1-2 Main, Nevada National Security Site, Southern Nevada
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- Document: Report (3.99 MB pdf)
- Data Release: USGS data release - – Supplemental data for estimation of groundwater flow through Yucca Flat based on a multiple-well aquifer test at well ER-6–1–2 main, Nevada National Security Site, southern Nevada
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Abstract
The rate of groundwater flow past underground nuclear testing areas in Yucca Flat at the Nevada National Security Site, southern Nevada, was estimated using results from the ER-6-1-2 main multiple-well aquifer test (MWAT), done during February 5–July 23, 2004. Drawdowns in 13 observation wells were evaluated from pumping in well ER-6-1-2 main and used as observations in a regional groundwater-flow model to estimate the groundwater-flow rate. Flow from southern Yucca Flat regionally was constrained by detecting drawdown in Tracer Well 3, which is 33 miles south-southwest of pumping well ER-6-1-2 main. Predevelopment flow, the ER-6-1-2 main MWAT, and regional groundwater pumping were simulated in separate models that jointly informed estimates of transmissivity and specific-yield distributions. Predevelopment flow constrained groundwater-flow estimates from southern Yucca Flat because the steady-state model correctly simulated regional groundwater discharges in the Ash Meadows groundwater basin and the surrounding basins. Less than 600 acre-feet per year of groundwater moves from underground nuclear testing areas and flows south of well ER-6-1-2 main in southern Yucca Flat.
Suggested Citation
Jackson, T.R., and Halford, K.J., 2019, Estimation of groundwater flow through Yucca Flat based on a multiple-well aquifer test at well ER-6–1–2 main, Nevada National Security Site, southern Nevada: U.S. Geological Survey Scientific Investigations Report 2019–5038, 27 p., https://doi.org/10.3133/sir20195038.
ISSN: 2328-0328 (online)
Study Area
Table of Contents
- Abstract
- Introduction
- Methods
- Hydraulic Responses from ER-6-1-2 Main Multiple-Well Aquifer Test
- Yucca Flat Boundary Flow
- Summary and Conclusions
- Acknowledgments
- References Cited
Publication type | Report |
---|---|
Publication Subtype | USGS Numbered Series |
Title | Estimation of groundwater flow through Yucca Flat based on a multiple-well aquifer test at well ER-6–1–2 main, Nevada National Security Site, southern Nevada |
Series title | Scientific Investigations Report |
Series number | 2019-5038 |
DOI | 10.3133/sir20195038 |
Year Published | 2019 |
Language | English |
Publisher | U.S. Geological Survey |
Publisher location | Reston, VA |
Contributing office(s) | Nevada Water Science Center |
Description | Report: vi, 27 p.; Data Release |
Country | United States |
State | Nevada |
Other Geospatial | Nevada National Security Site |
Online Only (Y/N) | Y |
Google Analytic Metrics | Metrics page |