Impaired Water - Bark River (Bark River)
Waukesha County, Wisconsin
LR13
813500
35.00 - 41.00
6.00
Condition has remained stable; water is not impaired.
Notes
This water was listed for phosphorus and DO impairment in 1998. The TMDL for this listing was approved in 2011. This water is managed for boating, fishing, swimming, and aquatic life; it was assessed in the biennial cycle 2018 for the parameters total phosphorus, temperature, macroinvertebrates, and dissolved oxygen. All parameters showed no impairment and this water was delisted in 2018. This water is not considered impaired.
Listing Details
Pollutant
Total Phosphorus
Listed For
Impairments
Low DO
Current Use
Listing Status
Water Delisted
Attainable Use
Priority
Delisted 2018
Designated Use
303(d) ID
21
Listing Date
4/1/1998
Impaired Water Notes
Bark River (813500, miles 35-41) is a part of the Rock River Basin and is listed as impaired for total phosphorus. The Rock River Basin TMDLs for phosphorus and sediment were approved by the USEPA September 28, 2011.
Date
5/8/2012

Impaired Water Notes
This water was assessed during the 2018 listing cycle; new total phosphorus, biological (macroinvertebrate Index of Biotic Integrity (IBI) scores), and temperature sample data were clearly below 2018 WisCALM listing thresholds for the Fish and Aquatic Life use.
Date
5/23/2017