Impaired Water - Carstens Lake (Carstens Lake)
Manitowoc County, Wisconsin
MA01
66800
22.34
Water is impaired due to one or more pollutants and associated quality impacts.
Notes
Carstens Lake was evaluated every two-year cycle from 2014 to 2022 for phosphorus and algae; phosphorus levels were too high, reflected by algal blooms. Carstens Lake is on the Impaired Waters List.
Listing Details
Pollutant
Total Phosphorus
Listed For
Recreation
Impairments
Excess Algal Growth, Eutrophication
Current Use
Restricted Recreation
Listing Status
TMDL Development
Attainable Use
Full Body Contact - Swimming, Boating
Priority
High
Designated Use
Full Body Contact - Swimming, Boating
303(d) ID
2014-222
Listing Date
4/1/2014
Impaired Water Notes
This water was assessed during the 2014 listing cycle; total phosphorus sample data exceed 2014 WisCALM listing thresholds for the Recreation use and Fish and Aquatic Life use, chlorophyll data only exceed REC thresholds, not FAL.
Date
12/31/2013

Impaired Water Notes
This water was assessed during the 2016 listing cycle; total phosphorus sample data overwhelmingly exceed 2016 WisCALM listing thresholds for the Recreation use, exceeded Fish and Aquatic Life use, and chlorophyll data exceeded REC and FAL thresholds.
Date
10/9/2015

Impaired Water Notes
This water was assessed during the 2020 listing cycle; total phosphorus sample data overwhelmingly exceeded 2020 WisCALM listing thresholds for the Recreation use and Fish and Aquatic Life use, and chlorophyll data also exceeded REC and FAL thresholds. Based on the most updated information, no change in existing impaired waters listing is needed.
Date
6/19/2019

Impaired Water Notes
This water was assessed during the 2022 listing cycle; total phosphorus sample data overwhelmingly exceeded 2022 WisCALM listing thresholds for the Recreation use and Fish and Aquatic Life use, and chlorophyll data also exceeded REC and FAL thresholds. Based on the most updated information, no change in existing impaired waters listing is needed.
Date
5/26/2021