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State: Montana
Waterbody ID: MT76M003_020
Location: Twelvemile Creek, Headwaters To The Mouth (St. Regis River)
State Waterbody Type: River
EPA Waterbody Type: Rivers and Streams
Water Size: 13.4
Units: miles
Watershed Name: Middle Clark Fork
On This Page
- Causes of Impairment
- TMDLs That Apply to This Waterbody
- Previous Causes of Impairment Now Attaining All Uses
State: Montana
Waterbody ID: MT76M003_020
Location: Twelvemile Creek, Headwaters To The Mouth (St. Regis River)
State Waterbody Type: River
EPA Waterbody Type: Rivers and Streams
Water Size: 13.4
Units: miles
Watershed Name: Middle Clark Fork
2008 Waterbody Report for Twelve Mile Creek
Click on the waterbody for an interactive map
Features
- About This Database (Integrated Report)
- Assessing Water Quality (Questions and Answers)
- Integrated Reporting Guidance
- Previous National Water Quality Reports
- EnviroMapper for Water
- AskWATERS
- EPA WATERS Homepage
- Exchange Network
- Assessment Database
- Statewide Statistical Surveys
- How's My Waterway Local Search tool
- Pollution Categories Summary Document
Causes of Impairment for Reporting Year 2008
Description of this table
| Cause of Impairment | Cause of Impairment Group | State TMDL Development Status |
|---|---|---|
| Physical Substrate Habitat Alterations | Habitat Alterations | Non-pollutant impairment |
| Sedimentation/Siltation | Sediment | TMDL needed |
| Temperature | Temperature | TMDL completed |
| Temperature, Water | Temperature | TMDL needed |
TMDLs That Apply to this waterbody
Description of this table
| TMDL Document Name | TMDL Date | TMDL Pollutant Description | TMDL Pollutant Source Type | Cause(s) of Impairment Addressed |
|---|---|---|---|---|
| Twelvemile Creek - Headwaters To The Mouth (St. Regis River) | Sep-10-2008 | Sediment | Nonpoint Source | Thermal Modifications; Sedimentation/Siltation; Temperature; Temperature, Water; Siltation |
| Twelvemile Creek - Headwaters To The Mouth (St. Regis River) | Sep-10-2008 | Temperature | Nonpoint Source | Temperature; Temperature, Water; Thermal Modifications; Siltation; Sedimentation/Siltation |
Previous Causes of Impairments Now Attaining All Uses
No causes of impairment are recorded as attaining all uses for this waterbody.