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Filtering by: Subject Nitrates -- Environmental aspects -- Oregon -- Morrow County Advisor Haggerty, Roy D.

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...

Resource Type:

Masters Thesis

Full Text:

Survey, the Oregon Department of Environmental Quality, and ChevronTexaco. TABLE OF CONTENTS
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:

Oregon Abstract approved: Roy D. Haggerty Groundwater nitrate contamination is a well