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News

Date published: August 16, 2019

Groundwater in Moab Area Less than Previously Reported

A new assessment of groundwater resources in the Spanish Valley watershed in southern Utah shows an amount that is about 30–40% lower than previously reported, according to a U.S. Geological Survey report.

Date published: April 11, 2019

Salinity Cycles in Lower Colorado River Caused by Precipitation Patterns in Upper Basin

A new study shows that mysterious cycles in salinity in the lower Colorado River are a result of precipitation patterns in the headwaters of the upper basin more than a thousand river miles away. The salinity levels generally repeat about every 10 years.

Date published: March 18, 2019

Mercury Concentrations in Lake Powell Higher in Side Canyons

Mercury concentrations within Lake Powell are highest in side canyons within the lower portion of the reservoir, according to a new U.S. Geological Survey report. This finding is part of a study to better understand why mercury concentrations in striped bass are higher in the lower part of the reservoir.

Publications

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Year Published: 2019

Groundwater and surface-water resources near Red Fleet Reservoir, Uintah County, Utah

Red Fleet Reservoir in Uintah County, Utah, is an approximately 26,000 acre-foot (acre-ft) on-channel reservoir in the Big Brush Creek drainage on the south slopes of the Uinta Mountains. It is operated primarily for irrigation needs while providing a supplemental drinking-water supply to the Vernal, Utah area. Red Fleet Reservoir, which was...

Marston, Thomas M.; Solder, John E.; Jones, Katherine K.
Marston, T.M., Solder, J.E., and Jones, K.K., 2019, Groundwater and surface-water resources near Red Fleet Reservoir, Uintah County, Utah: U.S. Geological Survey Scientific Investigations Report 2019–5101, 40 p., https://doi.org/10.3133/sir20195101.

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Year Published: 2019

Numerical model simulations of potential changes in water levels and capture of natural discharge from groundwater withdrawals in Snake Valley and adjacent areas, Utah and Nevada

The National Park Service (NPS) and the Bureau of Land Management (BLM) are concerned about cumulative effects of groundwater development on groundwater-dependent resources managed by, and other groundwater resources of interest to, these agencies in Snake Valley and adjacent areas, Utah and Nevada. Of particular concern to the NPS and BLM are...

Masbruch, Melissa D.
Masbruch, M.D., 2019, Numerical model simulations of potential changes in water levels and capture of natural discharge from groundwater withdrawals in Snake Valley and adjacent areas, Utah and Nevada: U.S. Geological Survey Open-File Report 2019–1083, 49 p., https://doi.org/10.3133/ofr20191083.

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Year Published: 2019

Evaluation of groundwater resources in the Spanish Valley Watershed, Grand and San Juan Counties, Utah

Groundwater resources in the Spanish Valley watershed in southern Utah were quantified for the first time since the early 1970s. The primary objectives of this study were (1) to better understand sources of recharge to, groundwater flow directions within, and discharge points for both the valley-fill and Glen Canyon Group aquifers (VFA and GCGA),...

Masbruch, Melissa D.; Gardner, Philip M.; Nelson, Nora C.; Heilweil, Victor M.; Solder, John E.; Hess, Michael D.; McKinney, Tim S.; Briggs, Martin A.; Solomon, D. Kip
Masbruch, M.D., Gardner, P.M., Nelson, N.C., Heilweil, V.M., Solder, J.E., Hess, M.D., McKinney, T.S., Briggs, M.A., and Solomon, D.K., 2019, Evaluation of groundwater resources in the Spanish Valley Watershed, Grand and San Juan Counties, Utah: U.S. Geological Survey Scientific Investigations Report 2019–5062, 86 p., https://doi.org/10.3133/sir20195062.