Langlade County, Wisconsin
CW21
1440800
12.65 - 14.59
1.94
Water is impaired due to one or more pollutants and associated quality impacts.
Notes
This segment of Spring brook has been on the state's 303(d) impaired waters list since 1998 for Total Phosphorus and unspecified metals. The phosphorus listing was removed in the 2014 cycle and low levels were confirmed in the 2016 and 2018 cycles. 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
2014-135
Listing Date
4/1/2014
Impaired Water Notes
Biological impairment was observed (i.e. at least one macroinvertebrate or fish Index of Biotic Integrity (IBI) average scored in the poor condition category).
Date
1/27/2014
Impaired Water Notes
This water was assessed during the 2016 listing cycle; total phosphorus sample data clearly met 2016 WisCALM listing criteria for the Fish and Aquatic Life use, however, biological impairment was observed (i.e. at least one macroinvertebrate or fish Index of Biotic Integrity (IBI) scored in the poor condition category).
Date
8/30/2015
Pollutant
Total Phosphorus
Listed For
Fish and Aquatic Life
Impairments
NA
Current Use
Unsupported Aquatic Life
Listing Status
Pollutant Removed
Attainable Use
Coldwater - aquatic life, spawning
Priority
Delisted 2014
Designated Use
Coldwater - aquatic life, spawning
303(d) ID
452
Listing Date
4/1/1998
Impaired Water Notes
This water was assessed during the 2014 listing cycle; total phosphorus sample data clearly met 2014 WisCALM listing thresholds for the Fish and Aquatic Life use.
Date
1/27/2014
Impaired Water Notes
This water was assessed during the 2016 listing cycle; total phosphorus sample data clearly met 2016 WisCALM listing criteria for the Fish and Aquatic Life use, however, biological impairment was observed (i.e. at least one macroinvertebrate or fish Index of Biotic Integrity (IBI) scored in the poor condition category).
Date
8/30/2015
Pollutant
Unspecified Metals
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
452
Listing Date
4/1/1998