Douglas County, Wisconsin
LS01
2843800
5,902.36
Water is impaired due to one or more pollutants and associated quality impacts.
Notes
This portion of the St. Louis River was listed in 2006 for PAHs, metals, and aquatic toxicity. In 2010 it was additionaly listed for selected pesticides, and PCBs and Mercury from fish tissue data. New water quality data reviewed in the 2024 cycle indicated no additional pollutants.Pollutant
Dieldrin
Listed For
Public Health and Welfare
Impairments
Dieldrin Contaminated Sediments
Current Use
Human Health Risks Exist
Listing Status
303d Listed
Attainable Use
Not used as a public drinking water supply
Priority
Low
Designated Use
Not used as a public drinking water supply
303(d) ID
2010-39
Listing Date
4/1/2010
Impaired Water Notes
The St. Louis River Area of Concern (AOC) impaired waters listing will now include the entire St. Louis River, St. Louis Bay and Allouez Bay. This area is already listed for Hg and PCB Fish Consumption Advisories. In 2006, PAHs and metals were added to the list for aquatic toxicity.
Data was collected between the years of 1994-1998 and assessed by WDNR staff in 2009 for the St. Louis River AOC. WDNR has determined that the pollutants of DDT, Dieldrin, and Dioxin (2,3,7,8-TCDD) exceed wildlife and human threshold and human cancer criteria listed in Tables 8 and 9 of NR 105. These pollutants elevate health risks to wildlife and humans.
Date
12/1/2009
Pollutant
2,3,7,8-Tetrachlorodibenzo-p-dioxin
Listed For
Public Health and Welfare
Impairments
Dioxin Contaminated Sediments
Current Use
Human Health Risks Exist
Listing Status
303d Listed
Attainable Use
Not used as a public drinking water supply
Priority
Low
Designated Use
Not used as a public drinking water supply
303(d) ID
2010-39
Listing Date
4/1/2010
Pollutant
DDT
Listed For
Public Health and Welfare
Impairments
DDT Contaminated Sediments
Current Use
Human Health Risks Exist
Listing Status
303d Listed
Attainable Use
Not used as a public drinking water supply
Priority
Low
Designated Use
Not used as a public drinking water supply
303(d) ID
2010-39
Listing Date
4/1/2010
Pollutant
Unspecified Metals
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
2006-1
Listing Date
4/1/2006
Pollutant
PAHs
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
2006-1
Listing Date
4/1/2006
Pollutant
PCBs
Listed For
Fish Consumption
Impairments
PCBs 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
465, 466
Listing Date
4/1/1998
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
465,466
Listing Date
4/1/1998