Water quality modeling of the Tualatin River Public Deposited

http://ir.library.oregonstate.edu/concern/defaults/5425kf573

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  • Water quality problems related to excessive algal growth, high nutrient loading, and low flows have been occurring along Oregon's Tualatin River. The Tualatin River is 86 miles long and has a drainage basin of 711 square miles. The drainage basin incorporates forest, agricultural, and urban areas. Located in the Portland metropolitan area, these problems have been acerbated by the effects of urban growth. To help analyze pollution control alternatives, a river model study, funded by the Oregon Department of Environmental Quality (DEQ), was undertaken. An in-stream model of hydraulics and water quality was developed. The Corps of Engineer's CE-QUAL-W2 model, a twodimensional, laterally averaged, dynamic model of hydrodynamics and water quality was applied to the Tualatin system. Calibration of the main pool model of the Tualatin River was from field data taken during June through August of 1991. Verification of the model was performed from field data taken during the summer of 1990. After calibration and verification of the model, management alternatives were evaluated in order to achieve DEQ mandated water quality standards. Environmental performance criteria were determined to evaluate differences between model scenarios. Management alternatives focused on the reduction of point and non-point sources of pollution, flow augmentation, and structural changes in the river system, such as removal of the Lake Oswego Diversion Dam.
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  • Master files scanned at 600 ppi (256 Grayscale) using Capture Perfect 3.0.82 on a Canon DR-9080C in TIF format. PDF derivative scanned at 300 ppi (256 B&W), using Capture Perfect 3.0.82, on a Canon DR-9080C. CVista PdfCompressor 4.0 was used for pdf compression and textual OCR.
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  • description.provenance : Approved for entry into archive by Digital Production(digitalproduc@gmail.com) on 2009-09-16T15:19:19Z (GMT) No. of bitstreams: 1 WaterQualityModelingTualatin River.pdf: 1863452 bytes, checksum: 34a0adf8984449c29440681fe035a1b3 (MD5)
  • description.provenance : Approved for entry into archive by Linda Kathman(linda.kathman@oregonstate.edu) on 2009-09-21T22:01:09Z (GMT) No. of bitstreams: 1 WaterQualityModelingTualatin River.pdf: 1863452 bytes, checksum: 34a0adf8984449c29440681fe035a1b3 (MD5)
  • description.provenance : Submitted by Mary Phan (mpscanner@gmail.com) on 2009-09-14T17:30:00Z No. of bitstreams: 1 WaterQualityModelingTualatin River.pdf: 1863452 bytes, checksum: 34a0adf8984449c29440681fe035a1b3 (MD5)
  • description.provenance : Made available in DSpace on 2009-09-21T22:01:09Z (GMT). No. of bitstreams: 1 WaterQualityModelingTualatin River.pdf: 1863452 bytes, checksum: 34a0adf8984449c29440681fe035a1b3 (MD5) Previous issue date: 1994

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