Dane County, Wisconsin
LR10
805900
1.00 - 9.09
8.09
Water is impaired due to one or more pollutants and associated quality impacts.
Notes
This segment of Pheasant Branch has been on the state's 303(d) impaired waters list since 1998 for phosphorus and sediment. An additional listing for chloride was added in 2016. Assessments every two year cycle from 2018 to 2024 confirmed phosphorus impairment. The TMDL for phosphorus and sediment was approved in 2011.Pollutant
Chloride
Listed For
Fish and Aquatic Life
Impairments
Acute Aquatic Toxicity, Chronic Aquatic Toxicity
Current Use
Unsupported Aquatic Life
Listing Status
303d Listed
Attainable Use
LFF - Limited Forage Fishery
Priority
Low
Designated Use
LFF - Limited Forage Fishery
303(d) ID
2016-084
Listing Date
4/1/2016
Impaired Water Notes
This water was assessed during the 2016 listing cycle and chloride sample data exceeded 2016 WisCALM chronic and acute listing criteria for the Fish and Aquatic Life use.
Date
8/21/2015
Pollutant
Total Phosphorus
Listed For
Fish and Aquatic Life
Impairments
Degraded Biological Community, Low DO
Current Use
Unsupported Aquatic Life
Listing Status
TMDL Approved
Attainable Use
LFF - Limited Forage Fishery
Priority
Not Applicable
Designated Use
LFF - Limited Forage Fishery
303(d) ID
641
Listing Date
4/1/1998
Impaired Water Notes
Based on the total phosphorus criteria excursions and the corroborating biological assessment, "degraded biological community" impairment was added to the existing impaired water listing in 2012.
Date
8/3/2011
Impaired Water Notes
Pheasant Branch (805900, miles 0-8.09) 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
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
4/1/2014
Impaired Water Notes
This water was assessed during the 2018 listing cycle; new total phosphorus sample data overwhelmingly exceed 2018 WisCALM listing criteria for the Fish and Aquatic Life use and biological impairment was observed (i.e. at least one fish Index of Biotic Integrity (IBI) scored in the poor condition category).
Date
4/13/2017
Impaired Water Notes
This water was assessed during the 2020 listing cycle; new total phosphorus sample data overwhelmingly exceed 2020 WisCALM listing criteria for the Fish and Aquatic Life use and biological impairment was observed (i.e. at least one fish Index of Biotic Integrity (IBI) scored in the poor condition category).
Date
6/7/2019
Impaired Water Notes
This water was assessed during the 2022 listing cycle; new total phosphorus sample data overwhelmingly exceed 2022 WisCALM listing criteria for the Fish and Aquatic Life use and biological impairment was observed in the fish community.
Date
4/14/2021
Pollutant
Sediment/Total Suspended Solids
Listed For
Fish and Aquatic Life
Impairments
Degraded Habitat
Current Use
Unsupported Aquatic Life
Listing Status
TMDL Approved
Attainable Use
LFF - Limited Forage Fishery
Priority
Not Applicable
Designated Use
LFF - Limited Forage Fishery
303(d) ID
641
Listing Date
4/1/1998
Impaired Water Notes
Pheasant Branch (805900, miles 0-8.09) 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