Impaired Water - West Branch Baraboo River (West Br Baraboo River)
Juneau, Vernon County, Wisconsin
LW24
1288400
0.00 - 7.24
7.24
Water is impaired due to one or more pollutants and associated quality impacts.
Notes
This portion of the West Branch Baraboo River was listed for phosphorus, sediment, and oxygen in 1998.

Every two years between 2014 and 2018 phosphorus evaluation showed continued impairment. In 2020 bug community health indicated a possible impact on health. Further monitoring of bug community health is recommended.
This water is part of the Wisconsin River TMDL.
Listing Details
Pollutant
Total Phosphorus
Listed For
Fish and Aquatic Life
Impairments
Low DO
Current Use
Unsupported Aquatic Life
Listing Status
TMDL Approved
Attainable Use
Default - Fish and Aquatic Life
Priority
Not Applicable
Designated Use
Default - Fish and Aquatic Life
303(d) ID
19
Listing Date
4/1/1998
Impaired Water Notes
Type of impairment:
Violations of dissolved oxygen standard.

Cause of impairment:
Nutrients, BOD, low stream gradient, low channel roughness.

Source of impairment:
Nonpoint source watershed nutrient loading, point source BOD, stream channelization, Hillsboro Lake algae blooms
Date
3/26/2002

Impaired Water Notes
This water was assessed during the 2014 listing cycle; total phosphorus sample data exceed 2014 WisCALM listing criteria for the Fish and Aquatic Life use and biological impairment was observed (i.e. at least one macroinvertebrate or fish Index of Biotic Integrity (IBI) scored in the poor condition category).
Date
2/26/2014

Impaired Water Notes
This water was assessed during the 2016 listing cycle; total phosphorus sample data exceed 2016 WisCALM listing criteria for the Fish and Aquatic Life use and biological impairment was observed (i.e. at least one macroinvertebrate or fish Index of Biotic Integrity (IBI) scored in the poor condition category).
Date
9/24/2015

Impaired Water Notes
This water is part of the 2019 approved Wisconsin River TMDL addressing Total Phosphorus and Total Suspended Solids.
Date
6/7/2019

 
Pollutant
Sediment/Total Suspended Solids
Listed For
Fish and Aquatic Life
Impairments
Low DO
Current Use
Unsupported Aquatic Life
Listing Status
303d Listed
Attainable Use
Default - Fish and Aquatic Life
Priority
Low
Designated Use
Default - Fish and Aquatic Life
303(d) ID
19
Listing Date
4/1/1998
Impaired Water Notes
Type of impairment:
Violations of dissolved oxygen standard.

Cause of impairment:
Nutrients, BOD, low stream gradient, low channel roughness.

Source of impairment:
Nonpoint source watershed nutrient loading, point source BOD, stream channelization, Hillsboro Lake algae blooms
Date
3/26/2002

 
Pollutant
BOD
Listed For
Fish and Aquatic Life
Impairments
Low DO
Current Use
Unsupported Aquatic Life
Listing Status
303d Listed
Attainable Use
Default - Fish and Aquatic Life
Priority
Low
Designated Use
Default - Fish and Aquatic Life
303(d) ID
19
Listing Date
4/1/1998
Impaired Water Notes
Type of impairment:
Violations of dissolved oxygen standard.

Cause of impairment:
Nutrients, BOD, low stream gradient, low channel roughness.

Source of impairment:
Nonpoint source watershed nutrient loading, point source BOD, stream channelization, Hillsboro Lake algae blooms
Date
3/26/2002