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Filtering by: Date issued sim 1989-12-01 Remove constraint Date issued sim: 1989-12-01 Subject Groundwater -- Oregon -- Malheur River Watershed Remove constraint Subject: Groundwater -- Oregon -- Malheur River Watershed

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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