Liberte Environmental Associates

TMDLs Potentially Affecting Water Quality

Existing Final TMDLs - Released by Oregon Department of Environmental Quality

Willamette River Basin TMDL: Final TMDL Related Documents

This Final TMDL was approved by EPA in September 2006. This watershed is located in northwest and partly southwest Oregon.

Willamette River Basin Watershed TMDL Main Report (Executive Summary through Chapter 9) (31.1 MB, chapters compiled*)

Willamette River Basin Watershed TMDL Main Report (Chapters 10 through 14) (18.7 MB, chapters compiled*)

Willamette River Basin Watershed TMDL Report Appendices (14.8 MB, appendices compiled*)

DEQ Website for the Existing TMDL for the Willamette River Basin

DEQ originally provided the Final Willamette Watershed TMDL documents in smaller size, separate chapters and appendices, as follows:
Executive Summary
Chapter 1 - Overview
Chapter 2 - Bacteria
Chapter 3 - Mercury
Chapter 4 - Temperature Mainstem
Chapter 5 - Lower Willamette Subbasin*
Chapter 6 - Clackamas Subbasin
Chapter 7 - Middle Willamette Subbasin*
Chapter 8 - North Santiam Subbasin
Chapter 9 - South Santiam Subbasin
Chapter 10 - Upper Willamette Subbasin*
Chapter 11 - McKenzie Subbasin
Chapter 12 - Middle Fork Willamette Subbasin
Chapter 13 - Coast Fork Willamette Subbasin
Chapter 14 - Water Quality Management Plan (WQMP)

Separate Appendices
Appendix A - Bacteria
Appendix B - Mercury
Appendix C - Temperature

*LEA Disclaimer for compiled, unlocked and OCR documents: From time to time LEA will post on this website scanned documents, and additional documents otherwise limited in accessibility. Accordingly, LEA may use document unlocking and optical character recognition (OCR) capabilities to provide accessible, tagged text documents for use by people with visual impairments, and also provide searchable documents. The unlocking and OCR processes are not faultless, and hence LEA cannot guarantee document perfection. However, taking these caveats into account, document accessibility is greatly increased. LEA also posts the original document where necessary, as obtained by LEA, such that users may compare any potential imperfections in the unlocked and OCR documents.

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