Water Quality Report
Fort Atkinson, WI
Jefferson County · 12,420 residents · 2 water systems
11
Contaminants detected
0
PFAS compounds
—
Hardness (mg/L)
0
Above legal limits
2
Above health guidelines
Fort Atkinson drinking water comes from groundwater wells. Based on the most recent monitoring data, 11 contaminants have been detected in the water supply, including Lead, Nitrate, Copper, Radium, and 7 others. PFAS testing has been conducted with no detections.
Contaminants detected in Fort Atkinson water
Detection does not necessarily mean unsafe levels. See individual reports for concentrations and EPA limits.
Lead0.013 / 0.015 mg/L
87% of EPA limit
Nitrate0.59 / 10 mg/L
6% of EPA limit
Copper51 / 1300 ug/L
4% of EPA limit
Radium2.6 / 5 pCi/L
52% of EPA limit
Uranium0.368 / 30 ug/L
1% of EPA limit
Gross Alpha Radiation2.5 / 15 pCi/L
16% of EPA limit
Total Trihalomethanes3.9 / 80 ug/L
5% of EPA limit
Haloacetic Acids (HAA5)1.4 / 60 ug/L
2% of EPA limit
Nickel0.0013 mg/L
UnregulatedInorganic
Fluoride0.789 / 4 mg/L
20% of EPA limit
Barium0.027 / 2 mg/L
1% of EPA limit
PFAS (tested — none detected)
Microplastics (not routinely tested)
Other cities in Jefferson County
Water quality reports for nearby Wisconsin communities.
Frequently asked questions
Is Fort Atkinson, WI tap water safe to drink?
Fort Atkinson tap water meets EPA legal standards (Maximum Contaminant Levels). However, 2 contaminants are present above independent health guidelines, which are often stricter than legal limits. 11 contaminants have been detected in the water supply, including Lead, Nitrate, Copper, Radium, Uranium. View the detailed report for each water system to see specific levels and how they compare to both legal limits and health guidelines.
What contaminants are in Fort Atkinson water?
Monitoring has detected 11 contaminants in Fort Atkinson's water supply: Lead, Nitrate, Copper, Radium, Uranium, Gross Alpha Radiation, Total Trihalomethanes, Haloacetic Acids (HAA5), Nickel, Fluoride, Barium. 2 exceed health guidelines. See individual system reports for concentrations relative to EPA limits.
Does Fort Atkinson water have PFAS?
Fort Atkinson's water has been tested for PFAS compounds with no detections. Testing was conducted as part of the EPA's Unregulated Contaminant Monitoring Rule (UCMR5) program.
Where does Fort Atkinson get its drinking water?
Fort Atkinson's drinking water comes from groundwater wells that draw from underground aquifers. The water is treated and tested according to Wisconsin DNR and EPA requirements before distribution. Fort Atkinson is served by 2 water systems, the largest being FORT ATKINSON WATERWORKS (serving 12,390 people).
Check your water quality
Enter your address for a detailed report specific to your water system.
On a private well? Search your address for nearby groundwater monitoring data.