Iowa County, Wisconsin
SP09
928600
0.00 - 3.32
3.32
Water is impaired due to one or more pollutants and associated quality impacts.
Notes
This segment of Brewery Creek is on the impaired waters list for chronic aquatic toxicity caused by lead and zinc. Lead levels were low enough for human recreation. Degraded bug and fish communities were determined during the 2018 cycle and confirmed in the 2022 cycle. New water quality data reviewed in the 2024 cycle indicated no additional pollutants.Pollutant
Unknown Pollutant
Listed For
Fish and Aquatic Life
Impairments
Degraded Biological Community
Current Use
Unsupported Aquatic Life
Listing Status
303d Listed
Attainable Use
Coldwater - aquatic life, spawning
Priority
Low
Designated Use
Coldwater - aquatic life, spawning
303(d) ID
2018-197
Listing Date
4/1/2018
Impaired Water Notes
This water was assessed during the 2018 listing cycle; new fish and macroinvertebrate sample data exceeded 2018 WisCALM listing criteria for the Fish and Aquatic Life use (i.e. at least one fish and macroinvertebrate Index of Biotic Integrity (IBI) average scored in the poor condition category).
Date
7/31/2017
Impaired Water Notes
This water was assessed during the 2022 listing cycle; new fish and macroinvertebrate sample data exceeded 2022 WisCALM listing criteria for Aquatic Life use (i.e. at least one fish and macroinvertebrate Index of Biotic Integrity (IBI) average scored in the poor condition category).
Date
8/3/2021
Pollutant
Lead
Listed For
Fish and Aquatic Life
Impairments
Chronic Aquatic Toxicity
Current Use
Unsupported Aquatic Life
Listing Status
303d Listed
Attainable Use
Coldwater - aquatic life, spawning
Priority
Low
Designated Use
Coldwater - aquatic life, spawning
303(d) ID
58
Listing Date
4/1/1998
Impaired Water Notes
This impairment listing may become a 4B (EAP Project) for the 2020 list if the project qualifies.
Date
3/26/2018
Pollutant
Zinc
Listed For
Fish and Aquatic Life
Impairments
Chronic Aquatic Toxicity
Current Use
Unsupported Aquatic Life
Listing Status
303d Listed
Attainable Use
Coldwater - aquatic life, spawning
Priority
Low
Designated Use
Coldwater - aquatic life, spawning
303(d) ID
58
Listing Date
4/1/1998
Impaired Water Notes
This impairment listing may become a 4B (EAP Project) for the 2020 list if the project qualifies.
Date
3/26/2018