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Filtering by: Subject Groundwater flow -- Oregon -- McRae Creek Watershed Remove constraint Subject: Groundwater flow -- Oregon -- McRae Creek Watershed Peer Reviewed No Remove constraint Peer Reviewed: No

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  • 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

  • The role of bedrock groundwater in rainfall-runoff response at hillslope and catchment scales

    Creator:
    Gabrielli, Christopher P.
    Abstract:
    Bedrock groundwater dynamics in headwater catchments are poorly understood and poorly characterized. Direct hydrometric measurements have been limited due to the logistical challenges associated with drilling through hard rock in steep, remote and often roadless terrain. Here we develop and use an inexpensive, portable bedrock drilling system to explore bedrock...
    Resource Type:
    Masters Thesis
    Full Text:
    groundwater dynamics aimed at quantifying bedrock groundwater contributions to hillslope flow and catchment

  • 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