In 1990, the USGS began assessing water-quality in the Tualatin River. Almost 30 years later, we are still monitoring conditions in the basin.
The USGS began to assess water quality conditions in the Tualatin River in 1990. The research included tracking how nutrients entered the river and establishing a instrument network to monitor dissolved-oxygen concentrations. Eventually, more issues arose and the research expanded to meet the needs of those reglatory agencies that manage the natural resources of the basin.
Below are other science projects associated with this project.
City Beavers: Tualatin River Basin Beaver Study
Below are data or web applications associated with this project.
Tualatin River Basin Water-Quality Sites
Map of currently active monitors in the Tualatin River Basin, Oregon.
Below are multimedia items associated with this project.
Over the past few decades, there has been a considerable amount of research detailing conditions in the Tualatin River Basin. Here are a collection of some of the most important findings.
Annotated bibliography for Tualatin River Basin Reserach
Posters from Tualatin River Basin studies
Prioritization framework for ranking riverine ecosystem stressors using example sites from the Tualatin River Basin, Oregon
Modeling water quality effects of structural and operational changes to Scoggins Dam and Henry Hagg Lake, Oregon
Field comparison of optical and Clark cell dissolved oxygen sensors in the Tualatin River, Oregon, 2005
Modeling hydrodynamics, temperature, and water quality in Henry Hagg Lake, Oregon, 2000-03
The effect of chamber mixing velocity on bias in measurement of sediment oxygen demand rates in the Tualatin River basin, Oregon
Phosphorus and E. coli and their relation to selected constituents during storm runoff conditions in Fanno Creek, Oregon, 1998-99
Modeling water quality in the Tualatin River, Oregon, 1991-1997
Phosphorus and E. coli in the Fanno and Bronson Creek subbasins of the Tualatin River basin, Oregon, during summer low-flow conditions, 1996
Effects of hypothetical management scenarios on simulated water temperatures in the Tualatin River, Oregon
Sources and transport of phosphorus and nitrogen during low-flow conditions in the Tualatin River, Oregon, 1991-93
Modeling discharge, temperature, and water quality in the Tualatin River, Oregon
Selected elements and organic chemicals in bed sediment and fish tissue of the Tualatin River basin, Oregon, 1992-96
Relations of Tualatin River water temperatures to natural and human-caused factors
Below are data or web applications associated with this project.
Below are software products associated with this project.
Below are partners associated with this project.
In 1990, the USGS began assessing water-quality in the Tualatin River. Almost 30 years later, we are still monitoring conditions in the basin.
The USGS began to assess water quality conditions in the Tualatin River in 1990. The research included tracking how nutrients entered the river and establishing a instrument network to monitor dissolved-oxygen concentrations. Eventually, more issues arose and the research expanded to meet the needs of those reglatory agencies that manage the natural resources of the basin.
Below are other science projects associated with this project.
City Beavers: Tualatin River Basin Beaver Study
Below are data or web applications associated with this project.
Tualatin River Basin Water-Quality Sites
Map of currently active monitors in the Tualatin River Basin, Oregon.
Below are multimedia items associated with this project.
Over the past few decades, there has been a considerable amount of research detailing conditions in the Tualatin River Basin. Here are a collection of some of the most important findings.
Annotated bibliography for Tualatin River Basin Reserach
Posters from Tualatin River Basin studies
Prioritization framework for ranking riverine ecosystem stressors using example sites from the Tualatin River Basin, Oregon
Modeling water quality effects of structural and operational changes to Scoggins Dam and Henry Hagg Lake, Oregon
Field comparison of optical and Clark cell dissolved oxygen sensors in the Tualatin River, Oregon, 2005
Modeling hydrodynamics, temperature, and water quality in Henry Hagg Lake, Oregon, 2000-03
The effect of chamber mixing velocity on bias in measurement of sediment oxygen demand rates in the Tualatin River basin, Oregon
Phosphorus and E. coli and their relation to selected constituents during storm runoff conditions in Fanno Creek, Oregon, 1998-99
Modeling water quality in the Tualatin River, Oregon, 1991-1997
Phosphorus and E. coli in the Fanno and Bronson Creek subbasins of the Tualatin River basin, Oregon, during summer low-flow conditions, 1996
Effects of hypothetical management scenarios on simulated water temperatures in the Tualatin River, Oregon
Sources and transport of phosphorus and nitrogen during low-flow conditions in the Tualatin River, Oregon, 1991-93
Modeling discharge, temperature, and water quality in the Tualatin River, Oregon
Selected elements and organic chemicals in bed sediment and fish tissue of the Tualatin River basin, Oregon, 1992-96
Relations of Tualatin River water temperatures to natural and human-caused factors
Below are data or web applications associated with this project.
Below are software products associated with this project.
Below are partners associated with this project.