Date |
Announcement or Update |
February 12, 2024 | The final Tongue River Salinity Modeling Report and appendices are available under the "Relevant Documents" section below. Contact Christy Meredith at Christy.Meredith@mt.gov (406) 444-0371 with any questions. |
May 2, 2023 Updated May 24, 2023 |
The Tongue River Salinity Modeling Report Stakeholder Draft and appendices are available for review under the "Relevant Documents" section below. Comments may be submitted until July 3 to Christy Meredith at Christy.Meredith@mt.gov, (406) 444-0371 |
December 15, 2022 | The Tongue River salinity stakeholder meeting has been rescheduled to Wednesday, January 11, 2023. Meeting details can be found in the "Meetings & Presentation" table below. A fact sheet on the Tongue River salinity water quality model has also been posted to this table. Please contact Christina Staten with any questions: CStaten@mt.gov or (406) 444-2836 |
December 12, 2022 | The December 14, 2022 stakeholder meeting is being postponed due to the snow storm hitting the region this week. A new meeting date will be provided soon. |
December 7, 2022 | The 2022 trend analysis report has been posted to the "Relevant Documents" table below. Additionally, an agenda containing Zoom links for the December 14, 2022 stakeholder meeting has also been posted in the "Meetings and Presentations" table below. |
November 15, 2022 | DEQ will be holding a stakeholder meeting at 5:00 p.m. on December 14, 2022 in Room 106 of Miles Community College or via Zoom webinar. An agenda with Zoom links will be posted in the "Meetings & Presentations" table below in the coming weeks. Please reach out to Christina Staten with any questions: CStaten@mt.gov or (406) 444-2836. |
October 1, 2020 |
Project updates:
|
December 17, 2019 | Project update: The project modeler team member position for the Tongue TMDL project is still vacant; therefore, modeling work for this project is incomplete. DEQ will be advertising, and hopes to fill, this position in early 2020. DEQ has been drafting an Electrical Conductivity and Sodium Adsorption Ratio water quality assessment method for the Tongue River, which will be available for a 60-day public comment period in spring 2020. Public comment for the new assessment method will occur simultaneously with public comment for the state's Water Quality Integrated Report (Montana's reporting to the U.S. EPA on waters monitored and found impaired during 2018 and 2019). When available, both draft documents will be posted on DEQ's Clean Water Act Information Center at: https://cwaic.mt.gov Public comment dates have not yet been set, however. |
July 1, 2019 | DEQ funding for continuous specific conductance (SC) monitoring at the Brandenberg and Miles City USGS gages has been extended until June 30, 2020. Both flow and water quality data will continue to be collected at these gages throughout the irrigation season. |
May 28, 2019 |
Several announcements/updates:
|
July 17, 2018 | A stakeholder meeting will be held Wednesday, August 29, 2018 at 5:00 p.m. in Room 106 of Miles Community College in Miles City, MT. Call-in information and the presentation will be posted in the Meetings and Presentations table below, the day of the meeting. Please contact Christina with any questions: (406) 444-2836 or CStaten@mt.gov. |
October 12, 2017 | The next stakeholder meeting is being planned for early 2018 (January - February timeframe) to review final model results and have an in-depth discussion on how EC and SAR TMDLs will be written for the lower two segments of the Tongue River. |
August 16, 2017 | A stakeholder meeting is scheduled for Tuesday, October 10, 2017 at 4 p.m. in Room 106 of the Miles Community College. The presentation and a call-in number will be posted in the below "Meetings and Presentations" table the day of the meeting. |
June 6, 2017 |
THE JUNE 15, 2017 STAKEHOLDER MEETING IN MILES CITY HAS BEEN CANCELLED. The meeting will be rescheduled and a notice will be posted when a new meeting date is determined. The meeting will most likely be held in August. Contact Christina with any questions: (406) 444-2836 |
April 5, 2017 | The next stakeholder meeting is scheduled for Thursday, June 15, 2017 at 5:30 p.m. in Room 106 at Miles Community College. An agenda, the presentation, and a call-in number will be posted in the below "Meetings and Presentations" table a few days before the meeting. |
December 6, 2016 | DEQ has reviewed all of the scenario suggestions for the Tongue River salinity model and determined which scenarios will be modeled. A list of the scenarios with information on their feasibility and whether they will be modeled is available for download. We anticipate having the next stakeholder meeting in Miles City in March 2017 where we will share and discuss the results of completed model scenarios. A meeting notice and additional details will be posted when a date has been set. |
October 19, 2016 | The presentation from the October 11, 2016 stakeholder meeting in Miles City is available in the Meetings & Presentations table below. A list of potential model scenarios, primarily based on suggestions received at the meeting, is also contained in the table. Please submit any additional scenario suggestions to Erik Makus at EMakus@mt.gov by October 31, 2016. |
August 11, 2016 |
A stakeholder meeting will be held at Miles Community College (Room 106) in Miles City at 5:30 p.m. on Tuesday, October 11, 2016. The main topic of discussion will be what land management scenarios will be run with the salinity water quality model that DEQ is developing for the Tongue River, and how the outcome of the scenarios may influence the TMDL. An agenda will be posted one to two weeks prior to the meeting. Please contact Christina Staten if you have questions concerning the meeting (406-444-2836). |
July 6, 2016 |
Tongue River TMDL project pages were released on this site. Some pages are still under development and additional information will be posted in the coming weeks. |
Meeting |
Presentations and Handouts |
April 21, 2016 Miles Community College
DEQ held a stakeholder meeting to provide an overview of the project, details of the Tongue River salinity water quality model, and an explanation of the TMDL development process
|
April 21, 2016 presentation (6.86 MB) |
October 11, 2016 Miles Community College Room 106 5:30 p.m.
DEQ held a stakeholder meeting to discuss potential scenarios to run with the water quality model being developed for the Tongue River.
|
October 11, 2016 Presentation (4.05 MB)
List of Suggested Model Scenarios - October 2016 (84 KB) Model Scenario Determinations - December 2016 (97 KB) |
October 10, 2017 Miles Community College Room 106 4:00 p.m.
DEQ held a stakeholder meeting to discuss results of modeled scenarios. |
October 10, 2017 Presentation (6.23 MB)
|
August 29, 2018 Miles Community College Room 106 5:00 p.m.
DEQ discussed how the salinity TMDL(s) may be calculated for the lower Tongue River and approaches for determining TMDL allocations |
August 29, 2018 Presentation (6.28 MB) Handout: Table of Potential TMDL Allocations (91 KB) Handout Explanation (121 KB)
|
January 11, 2023 Miles Community College, Room 106 or via Zoom webinar 5:00 p.m.
DEQ discussed updated modeling and trend analysis results and the next steps in the water quality planning process.
|
January 11, 2023 Presentation (2.12 MB)
|
Document |
Document Description |
Date |
Tongue River Salinity Model Report (final version) | Final Draft of the Tongue River Modeling Report is available at the link. Contact Christy Meredith at Christy.Meredith@mt.gov or 406-444-0371 with any questions. | February 12, 2024 |
Tongue River Salinity Model Report (final version) Appendices | Appendices detailing background information and data used in development of Tongue River Salinity Model Report | February 12, 2024 |
Tongue River Salinity Model Report Stakeholder Draft | Stakeholder Draft of Tongue River Modeling Report, detailing contributions of anthropogenic and natural sources of salinity to the Tongue River, is available for public review. Comments may be submitted until July 3, 2023 to Christy Meredith at Christy.Meredith@mt.gov, 406-444-0371 | May 2, 2023 |
Tongue River Salinity Model Report Stakeholder Draft Appendices | Appendices detailing background information used in development of Tongue River Salinity Modeling Report, as well as additional supporting results | May 2, 2023 |
Tongue River Trend Analysis (6.46 MB) |
Montana DEQ contracted with HydroSolutions to conduct a trend analysis of the Tongue River, specifically looking at SC and SAR trends between 2000 and 2020 at three USGS gage sites: State Line (gage 06306300), Tongue River Dam (gage 06307500), and Birney Day School (gage 06307616). |
February 2022 |
Tongue River Model Report Comments | Montana DEQ's response to comments received regarding the Draft Tongue River Salinity Modeling Report Completed in May 2023 | November 2023 |
Role |
DEQ Contact |
|
Phone |
Project Coordinator |
Christy Meredith |
(406) 444-0371 |
|
Project Modeler* |
Eric Regensburger |
(406) 444-6714 |
|
Trend Analysis Contact | Christy Meredith | Christy.Meredith@mt.gov | (406) 444-0371 |
See the Tongue River Watershed Project Contacts page for a full description of each project team member's role and for a list of additional contacts.
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Page Released: July 6, 2016
Last Updated: May 24, 2023