Impaired Water - School Section Lake (School Section Lake)
Waukesha County, Wisconsin
LR13
825000
122.08
Condition has remained stable; water is not impaired.
Notes
School Section Lake was placed on the impaired waters list for total phosphorus and excess algal growth in 2014. New data indicated good conditions and the water was delisted in 2018. This lake was assessed in each biennial cycle from 2014 and 2020 for the parameters total phosphorus and chlorophyll-a (measure of algae). This water is managed for boating, fishing, swimming, and aquatic life; it is currently considered in good condition.
New total phosphorus, chlorophyll, and chloride data were clearly below 2020 WisCALM thresholds for REC and AL.
Listing Details
Pollutant
Total Phosphorus
Listed For
Impairments
Impairment Unknown, Excess Algal Growth
Current Use
Listing Status
Water Delisted
Attainable Use
Priority
Delisted 2018
Designated Use
303(d) ID
2014-238
Listing Date
4/1/2014
Impaired Water Notes
This water was assessed during the 2018 listing cycle; new total phosphorus and chlorophyll sample data were clearly below 2018 WisCALM listing thresholds for the Recreation use and the Fish and Aquatic Life use. This water is proposed for delisting in 2018.
Date
7/14/2017

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, however, chlorophyll data do not exceed REC thresholds . Total phosphorus and chlorophyll data do not exceed Fish and Aquatic Life thresholds.
Date
1/3/2014

Impaired Water Notes
This water was assessed during the 2016 listing cycle; chlorophyll sample data exceed 2016 WisCALM listing thresholds for the Recreation use, however, total phosphorus did not exceed REC thresholds. Total phosphorus and chlorophyll data were clearly below Fish and Aquatic Life listing thresholds.
Date
10/19/2015