Index Catalog // ScholarsArchive@OSU

Creator:: Cummings, Michael
Abstract:: The study area lies north-northeast of Crater Lake National Park and is covered by 2 to 3 m of pumice deposited during the climactic eruption of Mount Mazama approximately 7700 years before present. The pumice deposit hosts unconfined, seasonally connected, perched aquifers that support groundwater dependent ecosystems at points of...
Resource Type:: Presentation
Full Text:: Groundwater Storage and Flow in an Unconfined Pumice

Creator:: Lite Jr., Kenneth E.
Abstract:: Columbia River Basalt Group (CRBG) aquifers are commonly thought to be relatively flat lying, laterally extensive, and mostly confined, and therefore not likely to be directly connected to surface water. However, many of the CRBG units in south-central Washington and north-central Oregon were deposited within evolving synclinal structures of the...
Resource Type:: Presentation
Full Text:: River Basalt Aquifers – Impacts to streams from declining groundwater levels near Mosier, Oregon by

Creator:: Moellendorf, Suzanne, Miller, Mike, Nelson, Dennis, and Livesay, Dave
Abstract:: The City of Florence, local stakeholders, and partner agencies recently formed the Siuslaw Estuary Partnership (SEP) to address threats to drinking water quality and fish and wildlife habitat in the lower Siuslaw watershed. The Sole Source Dunal Aquifer within the lower Siuslaw watershed, which supplies the City ’s drinking water,...
Resource Type:: Presentation
Full Text:: =Groundwater only Lab Total coliform/E. coli Total Phosphates Nitrate Alkalinity Total Organic Carbon Common

Creator:: Castle, Emery N., Lindeborg, Karl H., and Oregon State University. Agricultural Experiment Station
Abstract:: Published April 1961. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
Resource Type:: Technical Report
Full Text:: surface use. However, part of the water is collected in a groundwater reservoir and is returned to the

Creator:: Grant, Gordon E., Tague, Christina, Safeeq, Mohammad, and Lewis, Sarah
Abstract:: Spatial patterns of summer streamflow in the Cascade Mountains of Oregon vary dramatically between the geologically distinct High and Western Cascade regions. A key control is the partitioning of water input between a fast-draining shallow subsurface flow network (Western Cascades) versus a slow-draining deeper groundwater system (High Cascades). These differences...
Resource Type:: Presentation

Creator:: Aldous, Allison, Gurrieri, Joe, Congdon, Roger, Carroll, Trish, and Bach, Leslie
Abstract:: Many freshwater ecosystems are sustained by a continuous supply of clean groundwater. For example, groundwater may provide late season baseflow to rivers or a sustained high water table in wetlands. These ecosystems, termed GDEs, often are affected by management activities that reduce, interrupt, or contaminate their groundwater supply, including groundwater...
Resource Type:: Presentation
Full Text:: joseph gurrieri roger congdon trish carroll leslie bach groundwater ecosystems & 1 sharon’s fen: l

Creator:: Oregon State University. Agricultural Experiment Station and Lindstrom, F. T.
Abstract:: Published September 1989. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
Resource Type:: Technical Report
Full Text:: Increasing awareness of groundwater enrichment with agricultural chemicals, specifi- cally nitrates

Creator:: Elzy, E., 1940-, Oregon State University. Environmental Health Sciences Center, and Oregon State University. Agricultural Experiment Station
Abstract:: Published July 1974. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
Resource Type:: Technical Report
Full Text:: Groundwater Flow . ... . ... . . . . . . . . . • • 23 Variable Water Table Effect on Chemical

Creator:: Waibel, M. Scott, Gannett, Marshall W., Chang, Heejun, and Hulbe, Christina L.
Abstract:: Effects of climate change in the Cascade Range will likely include more rain, less snow, and earlier snowmelt in the Cascade Range as compared to present conditions. These changes, in turn, will affect the timing of runoff, groundwater recharge, and groundwater discharge to spring-fed streams. This hydrologic response needs to...
Resource Type:: Presentation

Creator:: Oregon State University. Agricultural Experiment Station and Lindstrom, F. T.
Abstract:: Published October 1989. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
Resource Type:: Technical Report
Full Text:: reclamation of groundwater contaminated with nitrates and other pollutants. The mathematical model can be

ScholarsArchive@OSU