Water Resources

Filter Total Items: 161
Date published: August 29, 2017
Status: Active

Upper Klamath Basin Studies

In 1992, the USGS began studying possible causes for the change in trophic status of Upper Klamath Lake. Since then research has expanded to include groundwater, geomorphology, streamflow forecasting, and fish ecology.

Date published: August 18, 2017
Status: Active

Monitoring Mercury in Fish Tissue, Boise and Snake Rivers and Brownlee Reservoir

To meet National Pollution Discharge Elimination System (NPDES) permitting requirements, the City of Boise will be responsible for collecting fish tissue samples for mercury analysis upstream of and downstream of their wastewater treatment facilities discharging to the lower Boise and Snake Rivers.

Mercury is a naturally occurring element that ultimately makes its way into aquatic...

Contacts: Dorene MacCoy
Date published: August 10, 2017
Status: Active

Groundwater-Flow Model for the Treasure Valley and Surrounding Area

in partnership with the Idaho Department of Water Resources (IDWR) and Idaho Water Resource Board (IWRB), we will construct a numerical groundwater-flow model of the Treasure Valley and surrounding area. Resource managers will use the model to simulate potential anthropogenic and climatic effects on groundwater for water-supply planning and management. As part of model construction, the...

Date published: August 8, 2017
Status: Active

Wood River Valley Aquatic Biology and Habitat Assessment

Blaine County’s population nearly quadrupled from about 5,700 to 22,000 people between 1970 and 2010. Residents and resource managers of the Wood River Valley of south-central Idaho are concerned about the potential effects that population growth and the expected increased demand for water might have on the quantity and quality of the valley’s ground and surface waters. Increased water use has...

Contacts: Dorene MacCoy
Date published: August 4, 2017
Status: Completed

Identifying Bull Trout Migration in the Upper Boise River Basin

In 1999, the U.S. Fish and Wildlife Service (FWS) listed the bull trout (Salvelinus confluentus) as a threatened species. In 2010, the FWS designated critical habitat for the bull trout, including the upper Boise River basin. The Bureau of Reclamation (Reclamation) operates three reservoirs on the upper Boise River for irrigation and flood control. Reclamation and FWS have a need to understand...

Contacts: Dorene MacCoy
Date published: August 4, 2017
Status: Active

Streamflow Evaluation for Water Right Claims for Wild and Scenic Rivers, Owyhee Canyonlands Wilderness

Several river segments in the Owyhee Canyonlands Wilderness have been designated as “Wild and Scenic” under the Omnibus Public Lands Management Act of 2009. This designation is intended to protect the “outstanding remarkable values” (ORVs) in this area—specifically fish and wildlife habitat, scenic and geological features, and recreational opportunities.

The Bureau of Land Management (...

Contacts: Ryan L Fosness
Date published: August 4, 2017
Status: Active

Occurrence and Potential Risk of Microplastics in Lake Mead and the Delaware River

There is mounting evidence that microplastics present a significant threat to aquatic organisms. Microplastics – defined as plastic particles less than 5 mm in diameter – come from many different sources, including synthetic textiles, industrial waste products, personal care products, and the breakdown of litter, car tires, and other objects. This study will assess the occurrence of...

Date published: August 4, 2017
Status: Active

Mercury Cycling in the Hells Canyon Complex

The Hells Canyon Complex is a hydroelectric project consisting of three dams located on the Snake River along the Oregon and Idaho border. Elevated concentrations of mercury and methylmercury in the water column, bottom sediments, and biota in this reach have resulted in two of the reservoirs, Brownlee and Hells Canyon, being listed as impaired for mercury by the state of Idaho, and the entire...

Date published: August 4, 2017
Status: Active

Trace Elements in Streams Near the Stibnite Mining Area

Mining of stibnite (antimony sulfide), tungsten, gold, silver, and mercury near the town of Stibnite in central Idaho has left a legacy of trace element contamination in the East Fork of the South Fork of the Salmon River (EFSFSR) and its tributaries. Concentrations of arsenic, antimony, and mercury frequently exceed human health criteria and may impact threatened or endangered salmonid...

Date published: June 24, 2017
Status: Active

Hampton Roads Benchmark Monitoring Network

The southern Chesapeake Bay region is experiencing land subsidence along with rising sea levels, both of which can contribute to coastal flooding. The rates at which these two processes are occurring are not exactly known. Mapping of land elevation change requires ground-truth survey data at multiple locations that are accurate and precise. With the exception of a few CORS sites that have...