Impaired Water - Dutchman Creek (Dutchman Creek)
Brown County, Wisconsin
LF02
121600
0.00 - 4.04
4.04
Water is impaired due to one or more pollutants and associated quality impacts.
Notes
Dutchman Creek is impaired by unionized ammonia and phosphorus. This water is part of the Lower Fox River TP & TSS TMDL that was approved by the EPA in 2012.

Evaluations every two-year cycle from 2016 to 2024 confirmed the phosphorus impairment.
Listing Details
Pollutant
Ammonia (Unionized) - Toxin
Listed For
Fish and Aquatic Life
Impairments
Chronic Aquatic Toxicity
Current Use
Unsupported Aquatic Life
Listing Status
303d Listed
Attainable Use
WWSF - Warmwater Sport Fishery
Priority
Low
Designated Use
WWSF - Warmwater Sport Fishery
303(d) ID
120
Listing Date
4/1/1998
Impaired Water Notes
Dutchman's Creek - mouth to the Oneida Reservation boundary (Pioneer Drive); Mileage segment is changed from 0 - 7 to 0 - 4.04 based on upper portion being in tribal lands.
Date
4/1/2008

 
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
WWSF - Warmwater Sport Fishery
Priority
Not Applicable
Designated Use
WWSF - Warmwater Sport Fishery
303(d) ID
120
Listing Date
4/1/1998
Impaired Water Notes
The Lower Fox River Basin TP and TSS TMDL was approved by the U.S. EPA on May 18, 2012. The TMDL covers 27 waterbody segments impaired by total phosphorus and 18 waterbodies impaired by TSS for a total of 45 TMDLs. These TMDLs address degraded habitat, low Dissolved Oxygen (DO), eutrophication, and turbidity impairments.
Date
5/25/2012

Impaired Water Notes
This water was assessed during the 2016 listing cycle; total phosphorus sample data exceed 2016 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
9/24/2015

Impaired Water Notes
This water was assessed during the 2018 listing cycle; total phosphorus and new macroinvertebrate sample data exceed 2018 WisCALM listing criteria for the Fish and Aquatic Life use (i.e. at least one macroinvertebrate Index of Biotic Integrity (IBI) average scored in the poor condition category). New temperature sample data were clearly below 2018 WisCALM listing thresholds for the Fish and Aquatic Life use.
Date
5/26/2017

Impaired Water Notes
This water was assessed during the 2020 listing cycle; new total phosphorus sample data exceed 2020 WisCALM listing criteria for the Fish and Aquatic Life use and biological impairment was observed (i.e. at least one macroinvertebrate Index of Biotic Integrity (IBI) scored in the poor condition category).
Date
6/12/2019

Impaired Water Notes
This water was assessed during the 2022 listing cycle; new total phosphorus sample data exceed 2022 WisCALM listing criteria for the Fish and Aquatic Life use.
Date
5/24/2021