Fond Du Lac County, Wisconsin
MI06
38200
70.19
Water is impaired due to one or more pollutants and associated quality impacts.
Notes
Mauthe Lake was put on the Impaired Waters List in the 1998 cycle due to mercury from atmospheric deposition. In the 2022 cycle elevated phosphorus was identified, causing excess algal growth. New water quality data reviewed in the 2024 cycle indicated no additional pollutants. Pollutant
Total Phosphorus
Listed For
Fish and Aquatic Life
Impairments
Impairment Unknown, Excess Algal Growth
Current Use
Unsupported Aquatic Life
Listing Status
303d Listed
Attainable Use
Default - Fish and Aquatic Life
Priority
Low
Designated Use
Default - Fish and Aquatic Life
303(d) ID
2022-038
Listing Date
4/1/2022
Impaired Water Notes
This water was assessed during the 2022 listing cycle; new phosphorus sample data exceeded 2022 WisCALM listing criteria for Aquatic Life use.
Date
6/10/2021
Pollutant
Mercury
Listed For
Fish Consumption
Impairments
Mercury Contaminated Fish Tissue
Current Use
Specific Restricted Fish Consumption
Listing Status
303d Listed
Attainable Use
General Fish Consumption Advice
Priority
Low
Designated Use
General Fish Consumption Advice
303(d) ID
273
Listing Date
4/1/1998