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Phosphorus loading in Baker Creek, Oregon

Creator:: Stewart, Scott R.
Resource Type:: Masters Thesis

Water chemistry of Oregon Cascade wilderness lakes : a comparison to 1985 data

Creator:: Logan, Michael Burke
Abstract:: The Western Lake Survey (WLS) of 1985 documented the status of lake water chemistry across the western US and inferred population representations of various subregions and geomorphic units via statistically analyses. Results from this 1985 study indicated that lakes of the Oregon Cascades had the second most pristine and dilute...
Resource Type:: Masters Thesis
Full Text:: . Title: Water Chemistry of Oregon Cascade Wilderness Lakes: A Comparison to 1985 Data. Abstract

A water balance model for reforestation sites : description and sensitivity

Creator:: Costello, Craig
Abstract:: A model was developed for analysis of the soil water balance of individual reforestation sites in western Oregon. The numerical procedure for this model was programmed in compiled BASIC language and calculations for an entire season are made in about 180 seconds on an IBM AT microcomputer. The processes that...
Resource Type:: Masters Thesis
Full Text:: A water balance model for reforestation sites

A sanitary survey of the Willamette River from Sellwood bridge to the Columbia

Creator:: Gleeson, George Walter, 1905-
Resource Type:: Masters Thesis

An Ecoregion-Based Reference Condition and Classification Scheme for Determining Nutrient Criteria in Oregon Lakes

Creator:: Brenner, Jacqueline M.
Abstract:: The anthropogenic introduction of nutrients to water bodies has been shown to alter the structure and function of natural aquatic ecosystems, yet national EPA lake and reservoir nutrient criteria remain too broad for effective regional water quality management. This study uses a reference site approach to propose numeric nutrient criteria...
Resource Type:: Masters Thesis
Full Text:: reservoir nutrient criteria remain too broad for effective regional water quality management. This study

Municipal water source turbidities following timber harvest and road construction in western Oregon

Creator:: Grizzel, Jeffrey D.
Abstract:: Many municipalities throughout western Oregon rely upon forested watersheds as a source for domestic water supply. These watersheds are commonly managed by state or federal agencies or private corporations for timber production. Activities related to forest management within municipal watersheds have the potential to adversely affect water quality. Timber harvesting...
Resource Type:: Masters Thesis

Water quality of runoff from flood irrigated pasture in the Klamath Basin, Oregon

Creator:: Ciotti, Damion C.
Abstract:: Runoff from agricultural lands into Upper Klamath Basin rivers and lakes can cause water quality problems affecting fish and wildlife. Excessive eutrophication in Upper Klamath Lake is linked to high nutrient input (particularly phosphorus) stemming from both lake sediments and watershed tributaries. On a unit area load basis the Wood...
Resource Type:: Masters Thesis
Full Text:: , 2004 93 WATER QUALITY OF RUNOFF FROM FLOOD IRRIGATED PASTURE IN THE KLAMATH BASIN, OREGON

Investigation of the presence and change over time of water quality parameters in selected natural swimming areas in Oregon

Creator:: Van Ess, Erica
Abstract:: Few studies, and none in Oregon, have examined the presence and change of water quality parameters over time in popular natural swimming areas. This information is necessary to better understand water quality and risk of illness from either fecal contamination or cross-infection from other swimmers. The purpose of this study...
Resource Type:: Masters Thesis
Full Text:: in Oregon, have examined the presence and change of water quality parameters over time in popular

Preliminary investigation of microbial indicators in the assessment of Oregon streams

Creator:: Campbell, Heidi M. K.
Abstract:: The Environmental Monitoring and Assessment Program (EMAP) site selection protocol was used to generate a random sample of streams throughout the state of Oregon. One hundred and forty-six selected streams were sampled during the summer, low-flow period of 1997. Traditional microbial public health indicators, including heterotrophic plate counts (HPC), total...
Resource Type:: Masters Thesis
Full Text:: streams exceeded the current state of Oregon standard for water-contact recreation. Levels of bacteria

Evaluating microbial indicators of environmental condition in Oregon rivers

Creator:: Pennington, Alan Travis
Abstract:: Traditional public health bacterial indicators of water quality and the Biolog® system were evaluated to compare their response to other indicators of stream condition with the state of Oregon and between ecoregions (Coast Range, Willamette Valley, Cascades, and Eastern Oregon). Forty-three randomly selected Oregon rivers were sampled during the summer...
Resource Type:: Masters Thesis
Full Text:: . Hardin~ Traditional public health bacterial indicators of water quality and the Biolog® system were

ScholarsArchive@OSU

Phosphorus loading in Baker Creek, Oregon

Water chemistry of Oregon Cascade wilderness lakes : a comparison to 1985 data

A water balance model for reforestation sites : description and sensitivity

A sanitary survey of the Willamette River from Sellwood bridge to the Columbia

An Ecoregion-Based Reference Condition and Classification Scheme for Determining Nutrient Criteria in Oregon Lakes

Municipal water source turbidities following timber harvest and road construction in western Oregon

Water quality of runoff from flood irrigated pasture in the Klamath Basin, Oregon

Investigation of the presence and change over time of water quality parameters in selected natural swimming areas in Oregon

Preliminary investigation of microbial indicators in the assessment of Oregon streams

Evaluating microbial indicators of environmental condition in Oregon rivers

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