TMDLs Potentially Affecting Water Quality
Existing Final TMDLs - Released by Oregon Department of Environmental Quality
Tualatin River Basin TMDL: Final TMDL Related Documents
This Final TMDL was approved by EPA in August 2001. This watershed is located in northwest Oregon.
Tualatin River Basin Watershed Final TMDL Main Report (2001) (2.9 MB, chapters compiled*)
Tualatin River Basin Watershed Final TMDL Report Appendices (2001) (15.3 MB, appendices compiled*)
Links to Tualatin Basin NPDES Permits for sewage treatment plants (STP):
Forest Grove STP
Rock Creek STP
DEQ originally provided the Final Tualatin Watershed TMDL in smaller size, separate appendices, as follows:
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Appendix A* - Temperature Analysis
Appendix B - Bacteria Model
Appendix C - Chlorophyll and Phosphorus
Appendix D - Dissolved Oxygen Model (locked document)
Appendix E - pH
Appendix F - Fish
Appendix G - Toxics
Appendix H - Biological Criteria
Appendix I - Water Quality Management Plan (WQMP)
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