Water Availability and Use
Water Availability and Use
Featured Science | Water Availability for Tribal Treaty Rights in Western Washington
We are working with Tribes to identify rivers vulnerable to changing climate, land use, or water use.
We are working with Tribes to identify rivers vulnerable to changing climate, land use, or water use.
Featured Science | Streamflow Permanence
Predicting the likelihood that streams will be wet or dry.
Predicting the likelihood that streams will be wet or dry.
Featured Science | Southeast Sound Groundwater Flow Model
Major aquifer study including the construction and calibration of a numerical groundwater flow model.
Major aquifer study including the construction and calibration of a numerical groundwater flow model.
We research water availability so that the public knows how much water is available now and into the future. Our research focuses on determining the quantity, quality, and timing of water. In addition to conducting extensive monitoring, we develop detailed models to aid in addressing these complex topics.
Water Budgets
Water Budgets
Water budgets are detailed accounts of water systems. They summarize the ins and outs, and sometimes the timing of water exchanges. Our work to develop water budgets helps water resource managers and communities make informed decisions about how they are using water.
Groundwater - Surface Water Interactions
Groundwater - Surface Water Interactions
In most areas of Washington, groundwater is hydraulically connected to nearby rivers, lakes, and wetlands. We study the groundwater – surface water interface to better understand how much water is moving from above and below ground. Knowledge of ground and surface water exchange helps managers protect these interconnected resources.
Hydrogeology
Hydrogeology
Our hydrogeologic studies focus on regional groundwater assessments, aquifer delineation, and inter-agency science support. We specialize in estimating aquifer properties, mapping 3-D hydrogeologic frameworks, determining flow rates and directions, and conducting tracer analyses.
Filter Total Items: 69
Upper Kittitas County
The Issue: Baseflows in the tributary streams in the western portion of Kittitas County are important in the late summer and fall when demands on these streams peak. An ongoing USGS Yakima River basin study indicates that groundwater and surface water are interconnected, however the hydrogeologic framework and the potential impacts of groundwater withdrawals on tributary streamflow in the bedrock...
Recharge and frozen ground in the PNW
The Issue: Seasonally frozen ground occurs over approximately one-third of the contiguous United States, and the extent and duration of frozen ground have been decreasing as a result of global warming. In semi-arid regions such as the Columbia Plateau and Snake River Plain in the Pacific Northwest, nearly all natural recharge occurs between October and March when intermittent or seasonal frozen...
Nooksack River Streamflow and Network Analysis
The Lummi Nation is partner to six USGS streamflow-gaging stations in the Nooksack River basin that measure streamflow in small streams. The Lummi Nation uses data from these stations to help manage its natural resources and has requested that the USGS analyze the available data record. As a result, the USGS is using streamflow data collected in and near the Nooksack River basin to develop...
Little Spokane Hydrogeology
The Issue: Groundwater is an important resource for domestic, commercial, and agricultural usage in the Little Spokane River Basin, and groundwater discharge helps maintain streamflow in area streams. Consequently, as the population grows, and commercial and agricultural activity increase, so does the demand for groundwater. However, the quantity of usable groundwater, and the potential effects of...
Chimacum GW Model
Projected increases in population and development in northeastern Jefferson County, Washington, are expected to lead to increased groundwater withdrawals in the Chimacum Creek Basin. Changes in land use and climate could reduce groundwater recharge, thereby reducing groundwater available for drinking and for baseflow to streams that host endangered fish species. The USGS is developing quantitative...
Chamokane Framework and Model
Chamokane Creek Basin is a 179-square-mile area that borders and partially overlaps the Spokane Indian Reservation in southern Stevens County in northeastern Washington State. In 1979, all water rights in the Chamokane Creek Basin were adjudicated by a Federal court, which gave senior, reserved water rights to the Spokane Tribe of Indians for irrigation and protection of fish in Chamokane Creek...
NWIFC Water Assessment
Water resources are essential to Native American Tribes in western Washington for instream and out-of-stream uses. As the demand for water across the region increases, western Washington Tribes need critical information about water availability, water use, and ecological needs for water in order to manage their resources. To assess tribal water resources comprehensively in western Washington, the...
Johns Creek Framework
Located in Mason County in western Washington State, Johns Creek is an important producer of coho and chum salmon. In 1984, the Washington State Department of Ecology established an Instream Resources Protection Program for Water Resource Inventory Area 14 (WAC 173-514) to retain sufficient in-stream flow to protect fish and wildlife, scenic, aesthetic and other environmental values. This program...
Hood Canal
In September 2002, fish in Hood Canal near Hoodsport were under stress from low concentrations of dissolved oxygen, prompting the Washington State Department of Fish and Wildlife to temporarily close parts of Hood Canal to some types of fishing during the month of October. In 2003, low dissolved oxygen conditions worsened, some fish kills were observed as early as June, and by October large fish...
Groundwater in the Yakima River Basin, Washington
The Yakima River flows 215 miles from the outlet of Keechelus Lake in the central Washington Cascades southeasterly to the Columbia River, draining an area of 6,155 square miles. The Yakima River Basin is one of the most intensively irrigated areas in the United States. The population in the Yakima River Basin was about 238,000 in 1990. Increasing demands for water for municipal, fisheries...
Columbia Plateau Groundwater Availability Study
The Columbia Plateau Regional Aquifer System (CPRAS) covers about 44,000 square miles of eastern Oregon and Washington and western Idaho. The primary aquifers are basalts of the Columbia River Basalt Group and overlying basin-fill sediments. Groundwater availability issues in the basin include: 1) widespread water-level declines caused by pumping, 2) reduction in base flow to rivers and associated...
Bainbridge Island
Ground water is the sole source of drinking water for the City of Bainbridge Island in Kitsap County, Washington. As the population grows, demand for ground water grows, too. However, because ground water is limited by area and by the potential for seawater intrusion, the City recognizes in the Water Resources Element of its comprehensive plan that water resources must be carefully managed and...