Unified Interior Regions

Region 9: Columbia-Pacific Northwest

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Filter Total Items: 329
Date published: October 10, 2000
Status: Completed

Willamette Basin Groundwater Study

The U.S. Geological Survey (USGS) studies the water resources of the Willamette River Basin. Here you will find a description of the study, as well as information and data resulting from this work.

Contacts: Terrence Conlon
Date published: January 3, 2000
Status: Completed

Elwha-Morse Watershed

Have increased demands for Washington State's ground water and surface water left sufficient stream flows for fish and other uses?

To find out, the state's Watershed Management Act of 1998 (ESHB 2514) confers on local people the responsibility for conducting local watershed planning.

The Elwha-Morse Watershed area was formed out of the western part of Water Resources Inventory...

Date published: January 2, 2000
Status: Completed

Pierce County Groundwater

The rapid growth of population in the Tacoma-Puyallup area in Pierce County has placed increasing demands on the ground-water resource. Most domestic water needs are met by wells completed in the several hundred feet of glacial deposits that underlie the area, and about 9,000 persons are served by a single spring on the southwestern side of Puyallup. Most of the population relies on individual...

Date published: January 1, 2000
Status: Completed

Probability Flows for Streams in Eastern WA

Under Washington regulations, bridges, culverts, and other stream-crossing structures need to be designed with fish passage in mind. For culverts, maximum flows cannot exceed a 10-percent exceedance probability flow (the flow that is equalled or exceeded 10 percent of the time) when fish are migrating upstream.

To help the Washington Department of Natural Resources manage its culverts...

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Columbia River flows by highway in Portland, OR, with Mt. Hood in background
March 12, 2015

Columbia River in Portland, OR, with Mt. Hood

The Columbia River flows by the highway on its way to the Pacific Ocean.

March 9, 2015

Climate Vulnerability Assessment for Threatened Bull Trout

This webinar was conducted on March 10, 2015 as a part of the Climate Change Science and Management Webinar Series, co-hosted by the USGS National Climate Change and Wildlife Science Center and the USFWS National Conservation Training Center. Webinar Summary: Bull trout is the most cold-adapted fish in freshwaters of the Pacific Northwest. The species is listed as

February 26, 2015

PubTalk 2/2015 — Undamming Washington's Elwha River

by Amy East USGS Research Geologist

  • Hear about river response to the largest dam removal in history.
  • Causing disturbance as a means of restoration: how well does it work?
  • Will legendary salmon runs return?
Centrifuge Bowl Containing River Suspended Sediment
February 5, 2015

Centrifuge Bowl Containing River Suspended Sediment for Analysis

A U.S. Geological Survey hydrologist holds a centrifuge bowl containing river suspended sediment for analysis of metals and organic chemicals. The sample was collected using a new in-field continuous-flow centrifugation technique to separate and collect suspended sediment from large volumes of water. The sample was collected on the Duwamish River, Washington in cooperation

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A USGS streamgage
January 14, 2015

A USGS streamflow gaging station is used to collect water data

A U.S. Geological Survey streamflow gaging station collects water data on the Trask River. The Trask River gage is located near Tillamook, Ore. and has been in operation for 17 years.  

USGS streamgage in foreground with river and trees in background
January 14, 2015

USGS streamgage on the Trask River

Trask River stage, discharge, and water-quality data are collected and used together to help monitor the current health of the river. Data from the river are sent to equipment in the gage house, where it is stored then transmitted to USGS servers. 

January 7, 2015

Oso Landslide Computer Simulations

A large destructive landslide occurred near Oso, Washington on March 22, 2014. Computer simulations indicate that it could have behaved very differently (with much less mobility and consequent destructiveness) if the ground had been less porous and water-saturated. This video shows the results of two computer simulations. The first simulation shows computed landslide

December 31, 2014

Continuous Gas Monitoring Tracks Volcanic Activity at Mount St. Helens

Volcano gas geochemistry has been around for a long time. Scientists can make gas measurements using very large, very expensive Correlation Spectrometers or collect samples in the field and bring them back for analysis in the lab. But it’s possible we’re missing out on a lot of information because our monitoring capabilities don’t include continuous observation.

To

Elwha River flowing through former dam site during flood
December 9, 2014

Elwha River flowing through former dam site during flood

USGS Hydrologist Chris Magirl captures image of the Elwha River flooding for the first time following dam removal. This location is just downstream of the former Elwha Dam which used to stand at the area near the top of the photograph.

Pend Oreille River in winter
December 1, 2014

Pend Oreille River in winter

The Kalispel Tribe in northeastern Washington is located along the Pend Oreille River, home to culturally important, cold-water fish, such as bull trout and cutthroat trout. In an ongoing study, USGS researchers are helping to identify cold-water refuges and develop a protection and restoration framework that will inform Kalispel Tribe natural resource managers involved in

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Visitors at Glines Canyon East Abutment in Olympic National Park, the location of the Elwha River Restoration project.
October 31, 2014

Glines Canyon East Abutment

Visitors at Glines Canyon East Abutment in Olympic National Park, the location of the Elwha River Restoration project. Image available at Olympic National Park flickr site.

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USGS science for a changing world logo
June 30, 2004

Today, June 30, 2004, the U.S. Geological Survey (USGS) announces the recipients of the first year of the Mineral Resources External Research Program, a grant and/or cooperative agreement opportunity designed to support minerals research. The grant award is split among six topics that will enhance ongoing research in the USGS and deliver products within one year.

USGS science for a changing world logo
June 22, 2004

Trace amounts of pesticides or volative organic compounds (VOCs) were detected in ground water sampled from public-supply wells in Salt Lake Valley if the age of the sampled water was less than about 50 years, according to a report recently released by the U.S. Geological Survey (USGS).

USGS science for a changing world logo
June 22, 2004

A 5-year study by the U.S. Geological Survey on the occurrence and distribution of trace elements and synthetic organic compounds in sediment and fish from the Great Salt Lake Basin area of Utah, Idaho, and Wyoming found that trace elements were elevated in areas affected by historic mining, and organic compounds were highest at sites with urban and agricultural land use.

USGS
June 22, 2004

Trace amounts of pesticides or volative organic compounds (VOCs) were detected in ground water sampled from public-supply wells in Salt Lake Valley if the age of the sampled water was less than about 50 years, according to a report recently released by the U.S. Geological Survey (USGS).

USGS
June 22, 2004

A 5-year study by the U.S. Geological Survey on the occurrence and distribution of trace elements and synthetic organic compounds in sediment and fish from the Great Salt Lake Basin area of Utah, Idaho, and Wyoming found that trace elements were elevated in areas affected by historic mining, and organic compounds were highest at sites with urban and agricultural land use.

USGS
June 22, 2004

Water samples collected by the U.S. Geological Survey (USGS) in areas surrounding the Great Salt Lake in parts of Utah, Idaho, and Wyoming generally meet existing guidelines for drinking water and the protection of aquatic life, although water quality in some specific areas have elevated concentrations of pesticides...

USGS science for a changing world logo
May 14, 2004

New U.S. Geological Survey (USGS) science reaffirms, with strong genetic evidence, that the northern spotted owl is a separate subspecies from California and Mexican spotted owls. The same study also found no significant genetic differences between Mexican and California spotted owls.

USGS science for a changing world logo
May 14, 2004

America’s rivers and streams are generally suitable for irrigation, supplying drinking water, and home and recreational uses. However, in areas with significant agricultural and urban development, the quality of our nation’s water resources has been degraded by contaminants such as pesticides, nutrients, and gasoline-related compounds.

USGS
May 14, 2004

America’s rivers and streams are generally suitable for irrigation, supplying drinking water, and home and recreational uses. However, in areas with significant agricultural and urban development, the quality of our nation’s water resources has been degraded by contaminants such as pesticides, nutrients, and gasoline-related compounds.

USGS science for a changing world logo
April 26, 2004

Farmlands, wetlands, forests and deserts that composed the American landscape in the early 20th century have frequently been transformed during the past 30 years into mushrooming metropolitan areas as urbanization spreads across the country.

USGS
April 26, 2004

Farmlands, wetlands, forests and deserts that composed the American landscape in the early 20th century have frequently been transformed during the past 30 years into mushrooming metropolitan areas as urbanization spreads across the country.

USGS science for a changing world logo
April 15, 2004

A swarm of seismic activity heralding renewed eruptive activity at Anatahan Volcano in the Commonwealth of the Northern Mariana Islands (CNMI), which began early on March 31st, has prompted the U.S. Geological Survey to notify the National Oceanic and Atmospheric Administration?s Washington Volcanic Ash Advisory Center of volcanic activity that could be hazardous to aircraft.