Impaired Water - Phantom Lake (Phantom Lake)
Waukesha County, Wisconsin
FX06
766000
110.24
Water is impaired due to one or more pollutants and associated quality impacts.
Notes
This lake was assessed using 2012 WisCALM methodology using data from 2006-2010, and did not exceed thresholds for Total Phosphorus or chlorophyll a for either Recreation or Fish and Aquatic Life uses.

This water was assessed during the 2014 listing cycle; total phosphorus and chlorophyll sample data clearly met 2014 WisCALM listing thresholds for the Fish and Aquatic Life use. Chlorophyll sample data clearly met 2014 WisCALM listing thresholds for the Recreation use.

This water was assessed during the 2016 listing cycle; total phosphorus sample data exceed 2016 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.

This water was assessed during the 2018 listing cycle; new chlorophyll sample data were clearly below 2018 WisCALM listing thresholds for the Recreation use and the Fish and Aquatic Life use. Total Phosphorus sample data were not clearly below listing thresholds.

Assessments of new chlorophyll data during the 2020 listing cycle were in good condition of Aquatic Life and Recreation uses; total phosphorus data were unclear for Aquatic Life and Recreation uses. Chloride levels were also assessed and showed conditions appropriate for healthy aquatic communities like plants, fish, and bugs.
Listing Details
Pollutant
Total Phosphorus
Listed For
Recreation
Impairments
Impairment Unknown
Current Use
Restricted Recreation
Listing Status
303d Listed
Attainable Use
Full Body Contact - Swimming, Boating
Priority
Low
Designated Use
Full Body Contact - Swimming, Boating
303(d) ID
2016-211
Listing Date
4/1/2016
Impaired Water Notes
This water was assessed during the 2018 listing cycle; new chlorophyll sample data were clearly below 2018 WisCALM listing thresholds for the Recreation use and the Fish and Aquatic Life use. Total Phosphorus sample data were not clearly below listing thresholds.
Date
7/13/2017

Impaired Water Notes
This water was assessed during the 2016 listing cycle; total phosphorus sample data exceed 2016 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
8/19/2015