Evaluation of Stormwater and CSO Impact on Portland's Columbia Slough

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by Claudia L. Zahorcak, Brown and Caldwell Consultants, Dallas, United States,
John C. Detweiler, Brown and Caldwell Consultants, Dallas, United States,

Document Type: Proceeding Paper

Part of: Water Resources Planning and Management and Urban Water Resources

Abstract: A team of consultants studied the impacts of stormwater and combined sewer overflows on an urban drainageway to determine if increased beneficial stream uses were attainable. Planning-level loading-generator models and a steady-state receiving stream model were used. We identified the principal causes of water quality problems during non-storm and storm conditions. Follow-on analytical efforts will be directed toward these identified problems.

Subject Headings: Stormwater management | Combined sewers | Overflow | Water pollution | Water quality | Municipal water | Rivers and streams | Drainage | Oregon

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