Jefferson County, Wisconsin
LR15
817800
1.70 - 2.70
1.00
Water is impaired due to one or more pollutants and associated quality impacts.
Notes
1980 Class III trout stream. On the state's 303(d) impaired waters list since 1998 for Total Suspended Solids and Total Phosphorus. TMDL is approved.
This water was assessed during the 2014 listing cycle; phosphorus sample data nearly met (May Meet) 2014 WisCALM listing thresholds for the Fish and Aquatic Life use and biological sample data, macroinvertebrate or fish Index of Biotic Integrity (IBI), scores indicate possible impairment. Further monitoring is recommended.
This water was assessed during the 2018 listing cycle; new total phosphorus sample data may meet 2018 WisCALM listing criteria for the Fish and Aquatic Life use, however, available and biological data do not indicate impairment (i.e. no macroinvertebrate or fish Index of Biotic Integrity (IBI) scored in the "poor" condition category).Pollutant
Sediment/Total Suspended Solids
Listed For
Fish and Aquatic Life
Impairments
Elevated Water Temperature, Degraded Habitat
Current Use
Unsupported Aquatic Life
Listing Status
TMDL Approved
Attainable Use
WWFF - Warmwater Forage Fishery
Priority
Not Applicable
Designated Use
WWFF - Warmwater Forage Fishery
303(d) ID
468
Listing Date
4/1/1998
Impaired Water Notes
Two macroinvertebrate IBI values indicate poor conditions at swims stations 10012046, Steel Brook - Upstream Of Piper Rd (3.217) and 283230, Steel Brook - Ush 59 (4.237).
Date
10/21/2011
Impaired Water Notes
Steel Brook (817800, miles 1.7-2.7) is a part of the Rock River Basin and is listed as impaired for total phosphorus and sediment/total suspended solids. The Rock River Basin TMDLs for phosphorus and sediment were approved by the USEPA September 28, 2011.
Date
5/8/2012
Pollutant
Total Phosphorus
Listed For
Fish and Aquatic Life
Impairments
Low DO
Current Use
Unsupported Aquatic Life
Listing Status
TMDL Approved
Attainable Use
WWFF - Warmwater Forage Fishery
Priority
Not Applicable
Designated Use
WWFF - Warmwater Forage Fishery
303(d) ID
468
Listing Date
4/1/1998
Impaired Water Notes
Two macroinvertebrate IBI values indicate poor conditions at swims stations 10012046, Steel Brook - Upstream Of Piper Rd (3.217) and 283230, Steel Brook - Ush 59 (4.237).
Date
10/21/2011
Impaired Water Notes
Steel Brook (817800, miles 1.7-2.7) is a part of the Rock River Basin and is listed as impaired for total phosphorus and sediment/total suspended solids. The Rock River Basin TMDLs for phosphorus and sediment were approved by the USEPA September 28, 2011.
Date
5/8/2012