Community Partner
Oregon Department of Environmental Quality
First Advisor
Joe Maser
Date of Award
Spring 2019
Document Type
Project
Degree Name
Professional Science Master in Environmental Science and Management
Department
Environmental Science and Management
Language
English
Subjects
Watershed management -- Oregon -- Dairy Creek Watershed (Washington County), Water quality management -- Oregon -- Dairy Creek Watershed (Washington County), Water -- Pollution -- Total maximum daily load -- Oregon -- Tualatin River
DOI
10.15760/mem.57
Abstract
The project described in this paper specifically looks at the influence of land management practices on water quality, specifically total phosphorus (TP) loads in the Dairy McKay Watershed (DMW). The project is being used to inform a water quality monitoring plan for the Oregon DEQ via outputs from a SWAT model. The DMW is known to have high TP levels that are linked to low dissolved oxygen levels in the Tualatin River. There is a total maximum daily load (TMDL) for the Tualatin River that specifies target TP levels coming out of the DMW, if these targets are met, the DO levels should remain acceptable for aquatic life in the Tualatin River. As there is little current water quality data within the DMW, it is difficult to identify where the high levels of TP are located and where they can be reduced. The DMW-SWAT model outputs were analyzed, via Linear Regression analysis, to gain a better understanding of which stream segments are most sensitive to TP loading, based on their land use and management. These sensitive stream segments are recommended as future monitoring locations for continuous water quality data in the DMW.
Rights
© 2019 Brittany Saeman
In Copyright. URI: http://rightsstatements.org/vocab/InC/1.0/ This Item is protected by copyright and/or related rights. You are free to use this Item in any way that is permitted by the copyright and related rights legislation that applies to your use. For other uses you need to obtain permission from the rights-holder(s).
Persistent Identifier
https://archives.pdx.edu/ds/psu/28706
Recommended Citation
Saeman, Brittany, "Process-Based Modeling of the Dairy McKay Watershed to Inform Monitoring for Agricultural Best Management Practices" (2019). Environmental Science and Management Professional Master's Project Reports. 54.
https://pdxscholar.library.pdx.edu/mem_gradprojects/54
https://doi.org/10.15760/mem.57
Appendix A
Saeman_Appendix B.pdf (367 kB)
Appendix B
Saeman_Appendix C.pdf (12034 kB)
Appendix C
Included in
Environmental Health and Protection Commons, Environmental Monitoring Commons, Water Resource Management Commons
Comments
A project report submitted in partial fulfillment of the requirements for the degree of Professional Science Master in Environmental Science and Management.