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Stream DOC, nitrate, chloride and SUVA response to land use during winter baseflow conditions in sub-basins of the Willamette River Basin, OR

Creator:: Frentress, Jay
Abstract:: To better understand the impact of land use on stream nutrient export, a synoptic sampling of 57 sub-basins within the Willamette River basin was conducted during winter baseflow conditions (February 2009). I assessed whether stream dissolved organic carbon (DOC), NO₃⁻ and Cl⁻ and specific ultra-violet absorbance (SUVA) values were correlated...
Resource Type:: Masters Thesis

Bio-indices of pollution in the Willamette River

Creator:: Deschamps, Gene
Resource Type:: Masters Thesis
Full Text:: Willamette River at Salem, Oregon, from July to November, 1951. 33 Auust 21 At this time the water

The Willamette River fishes as biological indicators of pollution

Creator:: Noble, Richard Earl
Abstract:: An investigation of the fishes of the Willamette River and three of its larger tributaries was made during July, August, September, and November of 1951, to ascertain the possibility of using them as bio-indices of pollution. Thirteen stations were established on the Willamette River and tributaries. These stations were selected...
Resource Type:: Masters Thesis
Full Text:: , Steelhead ........................ 88 Figure 38. Water Flow Data for the Willamette River at Salem, Oregon

Bioaccumulation profiles of chemical contaminants in fish from the lower Willamette River, Portland Harbor superfund site and human health risk assessment

Creator:: Sethajintanin, Doolalai
Abstract:: Concentrations of twenty-five PCBs, fifteen organochiorine pesticides and mercury were determined in recreational fish from the Willamette River, Oregon during the summer of 2000. Thirty-six fish samples of three fish species including black crappie, smalimouth bass and con-rn-ion carp were analyzed. The data reported here provides new information and recent...
Resource Type:: Masters Thesis
Full Text:: organochiorine pesticides and mercury were determined in recreational fish from the Willamette River, Oregon

Variations in quality of water in a typical river cross-section

Creator:: Whitsell, Wilbur John
Resource Type:: Masters Thesis
Full Text:: chemical, physi- cal and bacteriological quality of Willamette River water at this particular cross

An evaluation of temperature reduction on low flow augmentation requirements for dissolved oxygen control

Creator:: Feigner, Kenneth Darrel
Resource Type:: Masters Thesis
Full Text:: meet downstream water requirements. The study was conducted on the Willamette River and its

An evaluation of the oxygen resources in the lower Willamette River during a critical low flow period

Creator:: Kari, Earl Nyhus
Abstract:: The lower Willamette River, located between river mile 4.0 and 26.5, is the most seriously polluted section of the Willamette River Basin. Low dissolved oxygen concentrations of 2.0 to 3.0 mg/1 are observed annually in this section of the river due to the pollutional loads discharged into it. Waste discharges...
Resource Type:: Masters Thesis
Full Text:: wastes discharged. Even under these substantial loadings, the water quality of the Willamette River has

An eleven year study of nitrate leaching in vegetable production with winter cover crops

Creator:: Feaga, Jeff
Abstract:: The Willamette Valley of Oregon has high rates of winter precipitation that cause leaching losses of residual fertilizer nitrogen (N) as nitrate (NO₃). Cover crops may have potential to mitigate N loss. Shallow groundwater was sampled for 11 years from plots planted in summer vegetables with and without winter cover...
Resource Type:: Masters Thesis

Chemical and isotopic patterns of nitrate variability in the southern Willamette Valley, Oregon

Creator:: Vick, Christopher Flanders
Abstract:: A relatively stable, persistent and historical problem with elevated NO₃⁻ concentrations in rural drinking wells in the southern Willamette Valley, Oregon is evident. What is the origin of NO₃⁻ in rural drinking water wells in this area? The answer to the question is not simple. Many non-point sources contribute to...
Resource Type:: Masters Thesis

A system analysis method for water quality management by flow augmentation

Creator:: Worley, John Larry
Abstract:: A rapid expansion of population and industrialization in recent years has created new and difficult problems in water resources management. Prudent management of water quality will require that more efficient methods be developed for evaluating large volumes of data on complex river systems, and tabulating the results in a form...
Resource Type:: Masters Thesis
Full Text:: was applied to the Wil- lamette River Basin in Northwestern Oregon to illustrate its use, but it

ScholarsArchive@OSU

Stream DOC, nitrate, chloride and SUVA response to land use during winter baseflow conditions in sub-basins of the Willamette River Basin, OR

Bio-indices of pollution in the Willamette River

The Willamette River fishes as biological indicators of pollution

Bioaccumulation profiles of chemical contaminants in fish from the lower Willamette River, Portland Harbor superfund site and human health risk assessment

Variations in quality of water in a typical river cross-section

An evaluation of temperature reduction on low flow augmentation requirements for dissolved oxygen control

An evaluation of the oxygen resources in the lower Willamette River during a critical low flow period

An eleven year study of nitrate leaching in vegetable production with winter cover crops

Chemical and isotopic patterns of nitrate variability in the southern Willamette Valley, Oregon

A system analysis method for water quality management by flow augmentation

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