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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:

-8 m/s to 4.62 x 10-4 m/s. Pump tests determined Kx-values from 3.59 x 10-4 m/s to 7.22 x 10-3 m/s
Signatures in the Subsurface - Big & Small Data Approaches for the Spatio-Temporal Analysis of Geologic Properties & Uncertainty Reduction

Creator:

Rose, Kelly Kathleen

Abstract:

Despite more than two centuries of exploration, including more than six million deep wellbores with depths exceeding 40,000 feet in some parts of the world, our ability to constrain subsurface processes and properties remains limited. Characteristics of the subsurface vary and can be analyzed on a variety of spatial scales....

Resource Type:

Dissertation

Full Text:

coring systems and supporting laboratories were provided by IODP/Texas A&M University (TAMU), FUGRO
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:

help and supporting data. Hydrologic and geochemical data provided by Audrey Eldridge, Catrin