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Oregon Water Science Center

Welcome to the USGS in Oregon. Our mission is to explore the natural world around us and provide reliable scientific information to help Federal, State, and local agencies, Tribes, and the public make well-informed decisions. Our research is widely used to manage Oregon's water resources for the benefit and safety of people and the environment. 

News

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Three historic USGS streamgages recognized by new World Meteorological Organization designation

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New project webpage: Modeling the water-quality effects to the Klamath River from drain recirculation

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New Publication - Assessing the Effects of Chloride Deicer Applications on Groundwater near the Siskiyou Pass, Southwestern Oregon

Publications

Examining the effect of physicochemical and meteorological variables on water quality indicators of harmful algal blooms in a shallow hypereutrophic lake using machine learning techniques

Two independent machine learning techniques, boosted regression trees and artificial neural networks, were used to examine the physicochemical and meteorological variables that affect the seasonal growth and decline of harmful algal blooms (HABs) in a shallow, hypereutrophic lake in southern Oregon. High temporal resolution data collected at four monitoring locations were aggregated into daily tim
Authors
Susan Wherry, Liam N. Schenk

Multiple lines of evidence point to pesticides as stressors affecting invertebrate communities in small streams in five United States regions

Multistressor studies were performed in five regions of the United States to assess the role of pesticides as stressors affecting invertebrate communities in wadable streams. Pesticides and other chemical and physical stressors were measured in 75 to 99 streams per region for 4 weeks, after which invertebrate communities were surveyed (435 total sites). Pesticides were sampled weekly in filtered w
Authors
Lisa H. Nowell, Patrick W. Moran, Ian R. Waite, Travis S. Schmidt, Paul M. Bradley, Barbara J. Mahler, Peter Van Metre

Water-level change from a multiple-well aquifer test in volcanic rocks, Umatilla Indian Reservation near Mission, northeastern Oregon, 2016

The U.S. Geological Survey, in cooperation with the Confederated Tribes of the Umatilla Indian Reservation (CTUIR), (1) estimated water-level change from a multiple-well aquifer test centered on CTUIR well number 422 and (2) evaluated hydraulic connections between the pumping and observation wells on the Umatilla Indian Reservation near Mission, northeastern Oregon to improve the understanding of
Authors
C. Amanda Garcia, Joseph J. Kennedy, Kate Ely

Science

Oregon Water Science Center's Malheur Lake Portfolio

USGS scientists have partnered with local groups to learn about the processes affecting turbidity in Malheur Lake. Located in southeastern Oregon, Malheur Lake and the surrounding refuge provide critical habitat to birds migrating along the Pacific Flyway.
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Oregon Water Science Center's Malheur Lake Portfolio

USGS scientists have partnered with local groups to learn about the processes affecting turbidity in Malheur Lake. Located in southeastern Oregon, Malheur Lake and the surrounding refuge provide critical habitat to birds migrating along the Pacific Flyway.
Learn More

Water-quality monitoring during reservoir drawdowns

The USGS is monitoring water-quality above, within, and below Middle Fork Willamette and the South Santiam River dams to understand how reservoir drawdowns influence downstream water-quality conditions.
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Water-quality monitoring during reservoir drawdowns

The USGS is monitoring water-quality above, within, and below Middle Fork Willamette and the South Santiam River dams to understand how reservoir drawdowns influence downstream water-quality conditions.
Learn More

Harney Basin Groundwater Study

In response to increasing groundwater demand and declining groundwater levels in the Harney Basin of southeastern Oregon, the U.S. Geological Survey and Oregon Water Resources Department conducted a groundwater-availability study during 2016–22. Read to learn about the key findings
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Harney Basin Groundwater Study

In response to increasing groundwater demand and declining groundwater levels in the Harney Basin of southeastern Oregon, the U.S. Geological Survey and Oregon Water Resources Department conducted a groundwater-availability study during 2016–22. Read to learn about the key findings
Learn More