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Filtering by: Subject Groundwater flow -- Oregon -- McRae Creek Watershed Rights Statement Copyright Not Evaluated

Groundwater flow model for the lower Malheur Basin near Ontario, Oregon

Creator:

Walker, David S.

Abstract:

The shallow, poorly-confined, sand and gravel aquifer underlying the lower Malheur River basin is contaminated by nitrate and metabolites of the herbicide dimethyl tetrachloroterephthalate (DCPA), first detected in 1983 and 1985, respectively. The aquifer supplies water for the Ontario municipal water system, domestic and industrial uses, and irrigation. In response...

Resource Type:

Masters Thesis

Full Text:

. Groundwater Flow Model for the Lower Malheur Basin Near Ontario, Oregon by David S. Walker A THESIS
Mapping of the groundwater system on Camp Creek using geophysical methods

Creator:

Barber, John Prentiss, Jr.

Abstract:

This study was undertaken in an attempt gain a more thorough understanding of stream/aquifer interactions on camp Creek in Central Oregon. Sections of the creek were excluded from livestock grazing between 1966 and the present. Objectives of the study were to measure the extent of the shallow aquifer in the...

Resource Type:

Masters Thesis
Flux of ground water and nitrogen through the floodplain of a fourth-order stream

Creator:

Wondzell, Steve

Abstract:

Changes in the concentrations of dissolved ammonia (NH4+1), nitrate (NO3-1), organic nitrogen (DON) were monitored along ground water flow paths to determine the importance of the ground water system to the stream nitrogen budget. The study site was located on a wide floodplain along a fourth-order stream in the Oregon...

Resource Type:

Dissertation