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Filtering by: Subject Flowers -- Oregon -- Willamette River Valley -- Identification Committee Member Wildenschild, Dorthe Degree Name Master of Science (M.S.)

Quantification of the nitrate attenuation capacity of low-permeability Missoula Flood deposits in the Willamette Valley of Oregon

Creator:

Arighi, Louis M.

Abstract:

Low-permeability geologic units may offer significant chemical and hydraulic protection of adjacent aquifers, and are important for managing groundwater quality, especially in areas with significant non-point source contamination. Nitrate in the Willamette Valley is attenuated across the Willamette Silt, a semi-confining unit overlying a regionally important aquifer. To quantify the...

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Masters Thesis

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Capacity of Low-Permeability Missoula Flood Deposits in the Willamette Valley of Oregon Abstract approved
Temporal and spatial variability of groundwater nitrate in the southern Willamette Valley of Oregon

Creator:

Mutti, Jeffrey Glenn

Abstract:

Groundwater nitrate contamination is a well-documented issue in the Southern Willamette Valley (SWV) of Oregon, as a Groundwater Management Area (GWMA) has recently been declared. As a GWMA, groundwater nitrate monitoring must occur until regional concentrations are below 7 mg/L NO3-N. However, the presence of temporal variability can make it...

Resource Type:

Masters Thesis

Full Text:

-documented issue in the Southern Willamette Valley (SWV) of Oregon, as a Groundwater Management Area (GWMA
Hydrogeologic field investigation and groundwater flow model of the southern Willamette Valley, Oregon

Creator:

Craner, Jeremy D.

Abstract:

Elevated groundwater nitrate (NO3 -) concentrations in the Southern Willamette Valley (SWV) caused the Oregon Department of Environmental Quality (ODEQ) to declare a Groundwater Management Area (GWMA) in Spring, 2004. To better understand direction of groundwater flow, groundwater age, and nitrate transport pathways of the SWV we developed a steady-state...

Resource Type:

Masters Thesis

Full Text:

Southern Willamette Valley, Oregon. Abstract approved: Roy Haggerty Elevated

ScholarsArchive@OSU

Quantification of the nitrate attenuation capacity of low-permeability Missoula Flood deposits in the Willamette Valley of Oregon

Temporal and spatial variability of groundwater nitrate in the southern Willamette Valley of Oregon

Hydrogeologic field investigation and groundwater flow model of the southern Willamette Valley, Oregon

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