Total Maximum Daily Loads

In March 2012, DEQ convened a Local Stakeholder Advisory Committee to provide input on the development of Mid-Coast Basin Total Maximum Daily Loads and to assist with planning implementation-ready TMDLs. The committee and technical working groups met periodically from March 2012 to September 2017. This process involves many active stakeholders and partners in the basin, including several local, state and federal agencies. Updated status information and TMDL development schedules are periodically provided to the committee at meetings and through written updates posted here.

Since late 2017, the Mid-Coast Basin TMDLs development activities have been focused primarily on dissolved oxygen conditions assessment, data analysis and model development. Activities for bacteria, temperature and sediment impairments have been temporarily or indefinitely suspended pending resolution of matters directly related to litigation involving the Oregon temperature TMDL and the Willamette Basin mercury TMDL.
 
For more information, contact Gene Foster, Watershed Management Section at 503-229-5325.
 

 

LSAC Update Memo - Jan. 8, 2018

​Upcoming Meeting:

Dissolved Oxygen TWG Meeting #6 - Apr. 3, 2019
Time: 9:30 a.m. – 12:30 p.m.
Location: Hatfield Marine Science Center – Guin Library Seminar Room
2030 SE Marine Science Drive, Newport, OR 97365

Dissolved Oxygen TWG Meeting #5 - Sept. 26, 2017

Topics: The primary focus of the meeting will be to discuss the calibration results and sensitivity analysis from the Upper Yaquina DO models for July and October 2016. Also, provide updates on 2017 monitoring projects. Agenda will be distributed in advance of the meeting

Temperature TWG #7​ - March 9, 2017

LSAC update memo - Feb. 17, 2017  

Dissolved Oxygen TWG Meeting #4 - Feb. 15, 2017
 
June 29, 2016 - Dissolved Oxygen TWG #2
April 13, 2016 - Bacteria TWG #17
Update on status of Bacteria TMDLs development; focus on watershed modeling
April 13, 2016 - Temperature TWG #6
Status of technical work and Cold Water Refugia
January 12, 2016 - LSAC - written update 
  • DEQ Memo - Update to Local Stakeholder Advisory Committee
Nov. 19, 2015 - Dissolved Oxygen TWG #1
Dissolved Oxygen Technical Work Summary and Status July 15, 2015 - Mid-Coast TMDLs Local Stakeholder Advisory Committee Meeting #10 July 15, 2015 - Bacteria Technical Working Group Meeting #16 April 22, 2015 - Bacteria Technical Working Group Meeting #15
Feb. 24, 2015 - Bacteria Technical Working Group Meeting #14
Jan. 14, 2015 - Sediment Technical Working Group Meeting #12

Jan. 17, 2014 - written update  

March 5, 2014
Bacteria Technical Workgroup #10

April 16, 2014
Sediment Technical Workgroup #10
Local Stakeholder Advisory Committee #9

June 11, 2014
Bacteria Technical Workgroup #11

Sept. 11, 2014
Bacteria Technical Workgroup #12

Oct. 28, 2014
Bacteria Technical Workgroup #13
Sediment Technical Workgroup #11

Local Stakeholder Advisory Group - written update

Dec. 11, 2013
Bacteria Technical Workgroup Meeting #9

Oct. 16, 2013
Sediment Technical Workgroup Meeting #9

Sept. 17, 2013
Bacteria Technical Workgroup Meeting #8

July 23, 2013
Sediment Technical Workgroup Meeting #8

June 19, 2013
Sediment Technical Workgroup Meeting #7

May 14, 2013
Bacteria Technical Workgroup Meeting #7

March 20, 2013
LSAC Meeting #8
Sediment Technical Workgroup Meeting #6

Feb. 14, 2013
Bacteria Technical Workgroup Meeting #6

Jan. 23, 2013
Sediment Technical Workgroup Meeting #5
Technical Workgroup Meeting #6 Technical Workgroup Meeting #5

Dec. 12, 2012

  • Local Stakeholder Advisory Committee Meeting #7

Oct. 16-17, 2012

  • Bacteria Technical Workgroup Meeting #5
  • Sediment Technical Workgroup Meeting #4

Sept. 18-19, 2012

  • Local Stakeholder Advisory Committee Meeting #6
  • Temperature Technical Workgroup Meeting #4
  • Bacteria Technical Workgroup Meeting #4
  • Sediment Technical Workgroup Meeting #3

Aug. 15, 2012

  • Temperature Technical Workgroup Meeting #3
  • Sediment Technical Workgroup Meeting #2

July 17-18, 2012

  • Local Stakeholder Advisory Committee Meeting #5
  • Temperature Technical Workgroup Meeting #2
  • Bacteria Technical Workgroup Meeting #3
  • Sediment Technical Workgroup Meeting #1

June 19-20, 2012

  • ​Local Stakeholder Advisory Committee Meeting #4
  • Temperature Technical Workgroup Meeting #1
  • Bacteria Technical Workgroup Meeting #3
  • Sediment Technical Workgroup Meeting #2

May 16, 2012

  • Local Stakeholder Advisory Committee Meeting #3
  • Bacteria Technical Workgroup Meeting #2
  • Sediment Technical Workgroup Meeting #1

April 18, 2012

  • Local Stakeholder Advisory Committee Meeting #2
  • Bacteria Technical Workgroup Meeting #1

March 20, 2012

  • Local Stakeholder Advisory Committee Meeting #1

Contact

For more information, contact Mid-Coast Basin Coordinator, David Waltz, 541-687-7345.