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State: Idaho
Waterbody ID:
Other ID: ID17040212SK020_07
State List ID: ID17040212SK020_07
Location:
State Waterbody Type: River
EPA Waterbody Type: Rivers and Streams
Water Size: 21.29
Units: miles
Watershed Name: Upper Snake-Rock
On This Page
- Causes of Impairment
- TMDLs That Apply to This Waterbody
- Previous Causes of Impairment Now Attaining All Uses
State: Idaho
Waterbody ID:
Other ID: ID17040212SK020_07
State List ID: ID17040212SK020_07
Location:
State Waterbody Type: River
EPA Waterbody Type: Rivers and Streams
Water Size: 21.29
Units: miles
Watershed Name: Upper Snake-Rock
Data are also available for these years: 2010 2008 2004 2002
2006 Waterbody Report for Snake River - Milner Dam To Twin Falls
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 2006
Description of this table
| Cause of Impairment | Cause of Impairment Group | State TMDL Development Status |
|---|---|---|
| Temperature | Temperature | TMDL needed |
TMDLs That Apply to this waterbody
No TMDL data have been recorded by EPA for this waterbody.
Previous Causes of Impairments Now Attaining All Uses
Description of this table
| Cause of Impairment | Cycles Listed | WQS Attainment Date | WQS Attainment Reason | WQS Attainment Comments |
|---|---|---|---|---|
| Bacteria | 2002 | Feb-04-2009 | Applicable WQS attained; reason for recovery unspecified. | The assessment for the Middle Snake River indicates State water quality standards are being met for primary contact recreation and secondary contact recreation. IDEQ-TFRO proposes the Middle Snake River be de-listed for pathogens. (See the Upper Snake Rock Watershed Management Plan pg198). |
| Dissolved Oxygen | 2002 | Feb-04-2009 | Applicable WQS attained; reason for recovery unspecified. | No TMDL is proposed for DO on the Middle Snake River or its tributaries. However, it is estimated that imposed TP reductions under the Mid-Snake TMDL will cause plant biomass to decrease between 20-60%, thus leading to DO levels below those considered to be a "nuisance" and will likely restore benefical uses. (See pages 177-178 of the Upper Snake Rock Watershed Management Plan) |