Unified Interior Regions

Region 9: Columbia-Pacific Northwest

Regions L2 Landing Page Tabs

Filter Total Items: 281
Date published: January 4, 2008
Status: Completed

Mid-Columbia Habitat Project

To meet their dam licensing agreements, operators of privately owned dams are required to offset the unavoidable loss of endangered salmon passing the dam by restoring and enhancing streams and providing hatcheries. Finding suitable side channels is made difficult by subtle features and overgrowth.

To help the Mid-Columbia Tributary Committee identify sites for restoration and...

Contacts: Joseph Jones
Date published: January 3, 2008
Status: Completed

Green River Geomorphic Responses

In the Pacific Northwest, water, sediment, and vegetation primarily determine the form of large river channels and shape their ecosystems. Dams on rivers affect all of these elements, with consequences for habitats and aquatic species. Understanding how water, sediment, and vegetation interact in habitats is key to managing rivers. In the case of the middle Green River in King County,...

Date published: January 2, 2008
Status: Completed

Eastbank Aquifer near Rocky Reach Dam

Ground water from the Eastbank Aquifer system in north-central Washington is a regional water supply for about 50,000 people, as well as for a fish hatchery operated by the Chelan County Public Utility District (PUD). The fish hatchery compensates for salmon and steelhead lost in the operation of two hydroelectric projects on the Columbia River owned by the PUD. The fish hatchery needs...

Date published: January 1, 2008
Status: Completed

DOH Nitrates

Ground water is a significant source of drinking water in Washington State, and keeping it free of contamination is important for public health. Public supply wells are frequently tested for nitrate concentrations, but private wells are tested only when they are drilled. This limits information about the potential exposure to elevated nitrate concentrations in private wells.

To help the...

Contacts: Lonna M Frans
Date published: March 4, 2007
Status: Completed

Headwaters Province - Idaho and Montana: Earth Science Studies in Support of Public Policy Development and Land Stewardship

The Headwaters Province project provided geoscience data and interpretations to the Federal Land Management Agencies (FLMA) that were basic to sound policy and land-stewardship practices. 

Date published: January 2, 2007
Status: Completed

San Juan County

Aquifers of the San Juan Islands, which are the principal source of fresh water, are commonly intruded by seawater at near-shoreline locations (less than one mile from the shore). Because the demand for ground water has escalated in recent years due to population growth and is expected to continue, the progression of seawater intrusion and areas most susceptible to future seawater intrusion...

Date published: January 1, 2007
Status: Completed

Yakima River Temperature Model

In the Yakima and Naches Rivers, water temperature is often a limiting factor in the survival of salmon during spawning and rearing. The Bureau of Reclamation uses a computer model to assess the effects of reservoir-management scenarios on temperatures and the success of salmon restoration. To provide the daily maximum and long-term water temperature data needed by the model, the Bureau of...

Contacts: Mark Mastin
Date published: January 3, 2006
Status: Completed

Salmon Creek Basin

Two reservoirs in the Salmon Creek Basin in north-central Washington store runoff from the upper basin for out-of-basin irrigation of farmlands. The U.S. Geological Survey (USGS), in cooperation with the Bureau of Reclamation (Reclamation), developed a precipitation-runoff model that simulates historical daily unregulated streamflows for different locations in the Salmon Creek Basin. The model...

Date published: January 2, 2006
Status: Completed

Nitrate in GW, Lower Umatilla Basin, OR

Stretching from Pendleton, Oreg., to the Columbia River, the Lower Umatilla Basin covers 550 square miles. Concentrations of nitrate in the basin's ground water frequently exceed national drinking-water standards. The basin's complex ground-water system is exposed to five human-related sources of nitrate: septic tanks, feedlots, explosives, fertilizer, and land applications of food waste....

Date published: January 1, 2006
Status: Completed

Fort Lewis

Fort Lewis is a 135-square-mile U.S. Army post in Pierce County, Washington, located just south of Tacoma. The Environmental and Natural Resources Division of Fort Lewis wishes to evaluate the effectiveness of the current and potential remediation activities at the Logistics Center, a regional maintenance facility at Fort Lewis where pump-and-treat systems are being used to remediate...

Date published: January 3, 2005
Status: Completed

Elwha River

The formerly free-flowing Elwha River was famous for the diversity and size of its salmon runs. After the construction of the Elwha Dam (1912) and the Glines Canyon Dam (1927), fish lost access to more than 70 miles of mainstem river and tributary habitat. As a result, all 10 runs of native Elwha salmon and sea-going trout declined sharply. Restoration of the Elwha River ecosystem will be...

Date published: January 2, 2005
Status: Completed

Nooksack River Ground-Water Bacteria

The lower Nooksack River Basin is located in Whatcom County, in the northwestern part of Washington. Within areas of the basin, the ground-water aquifer is shallow. Knowledge of how the surface water and the aquifer interact, and how this interaction affects the transport of bacteria and nitrates from agricultural fields to the ground-water system, is important to residents of the basin. This...

Filter Total Items: 1,024
Research team in the Northern Cascades.
July 7, 2016

USGS - NOROCK Research team in the Northern Cascades.

USGS - NOROCK field team in the Northern Cascades studying Hoary marmots and American pika and snowpack dynamics.  

Juvenile steelhead smolts
July 7, 2016

Juvenile steelhead smolts

Juvenile steelhead smolts become silvery and scales become loose as they transition into their seawater life history stages.

June 15, 2016

Catching the Quakes - Using Seismic Signals to Track Debris Flows

USGS Research Geophysicist Kate Allstadt conducts experiments at the U.S. Geological Survey debris-flow flume, near Eugene, Oregon. Dr. Allstadt and her group are working toward an understanding of how debris flows generate seismic signals. The quantitative information will be used in the development of improved technologies for detecting debris flows to mitigate their

May 29, 2016

Beaver at Summer Lake, Oregon

Beaver swimming in Summer Lake, Oregon.

Sentinel-2A satellite image showing the Crater Lake in Oregon.
May 28, 2016

Crater Lake Image Shows Potential of Sentinel-2A

This image from the European Space Agency's Sentinel-2A satellite offers a breathtaking view of Crater Lake National Park in southern Oregon. It offers something equally important to park managers, scientists, and anyone else interested in land cover change—a view that is highly similar and complementary to Landsat acquisitions.

Mount St. Helens earthquake record during times of magma recharge....
May 4, 2016

Mount St. Helens earthquake record during times of magma recharge.

The top plot is the number of located earthquakes per week from the Pacific Northwest Seismic Network's catalog. The bottom plot shows the earthquake depths with time. Earthquakes are plotted as circles with the size of the circle corresponding to the magnitude of the earthquake (see legend). Both plots show the time period from 1987 to September 2004, and 2008 to May 4

Earthquakes at Mount St. Helens from March 14, 2016 through May 4, ...
May 4, 2016

Earthquakes at Mount St. Helens from Mar. 14, 2016 - May 4, 2017

Map view plot of earthquakes located by the Pacific Northwest Seismic Network from March 14, 2016 through May 4, 2016. Only high-quality locations are shown (8 or more observations with a 130 degree gap or less between observing stations).

April 30, 2016

Beaver swimming in Summer Lake, OR

Beaver swimming in Summer Lake, OR

April 23, 2016

DataGrapher: Quick Overview

The Data Grapher is a set of online tools that allow users to create customized graphs and tables of a whole variety of time-series data that are served up by the U.S. Geological Survey. When you visit the USGS Data Grapher site for the Oregon Water Science Center, this is the first page you will see. In order to use the USGS Data Grapher, you need to become familiar with

April 23, 2016

DataGrapher: Setting Up Your First Graph

The most basic function possible with the USGS Data Grapher is the one site, one parameter plot. Starting with the Time Series, One Site feature, you can select any of the sites that have been loaded into the Data Grapher system; for the Oregon Data Grapher, data from nearly 300 monitoring sites from Oregon and southwest Washington have been loaded. The available water-

Filter Total Items: 442
USGS science for a changing world logo
April 5, 2011

For the third consecutive year, residents of Idaho's Treasure Valley can become citizen scientists to monitor water quality in the Boise River watershed.

USGS science for a changing world logo
March 4, 2011

A new carbon model allows scientists to estimate sources and losses of organic carbon in surface waters in the United States. Study results indicate that streams act as both sources and sinks for organic carbon. 

December 6, 2010

CORVALLIS, Ore. — The U.S. Geological Survey has named Carol Schuler director of its Forest and Rangeland Ecosystem Science Center. 

December 2, 2010

TACOMA, Wash. — Increasing amounts of sediment in rivers draining from Mt. Rainier could greatly increase the flooding potential in the Puget Lowland, according to a report published by the U.S. Geological Survey.

November 17, 2010

Approximately 13 million metric tons of rare earth elements (REE) exist within known deposits in the United States, according to the first-ever nationwide estimate of these elements by the U.S. Geological Survey.

August 25, 2010

TACOMA, Wash. — Washington’s only “benchmark” glacier continues to lose mass as a result of changes in climate, according to a report by the U.S. Geological Survey.

August 4, 2010

Tritium appears to be seeping deeper into the water of the eastern Snake River Plain aquifer.

July 21, 2010

The groundwater system in the northern portion of Idaho’s Ada County is receiving some recharge. Results of a U.S. Geological Survey study reveal that the aquifer system contains both very old and relatively new water.

June 21, 2010

Washington and Oregon residents should not be alarmed to witness a low-flying aircraft over parts of southern Washington and northern Oregon in late-June through July. 

June 14, 2010

The U.S. Geological Survey has added a fourth well to its Idaho Real-Time Groundwater Level Network. The well, USGS 21, is located on the U.S. Department of Energy’s 890-square mile Idaho National Laboratory site in southeastern Idaho. 

June 9, 2010

Heavy rains last weekend turned many Idaho rivers into raging torrents.

June 7, 2010

Groundwater levels of the Columbia Plateau have declined over the past 25 years in about 80 percent of the nearly 500 wells measured, according to a report published by the U.S. Geological Survey.

Filter Total Items: 247