Skip to content

Water Quality Report

Fort Atkinson, WI

Jefferson County · 12,671 residents · 5 water systems

11

Contaminants detected

0

PFAS compounds

320

Hardness (mg/L)

0

Above legal limits

7

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. Water hardness is 320 mg/L (very hard), which can cause scale buildup in appliances and reduce soap effectiveness.

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
Nitrate0.51 / 10 mg/L
5% of EPA limit
Copper26 / 1300 ug/L
2% of EPA limit
Radium4.5 / 5 pCi/L
89% of EPA limit
Uranium0.648 / 30 ug/L
2% of EPA limit
Gross Alpha Radiation4.4 / 15 pCi/L
29% of EPA limit
5% of EPA limit
2% of EPA limit
Nickel0.0019 mg/L
UnregulatedInorganic
Fluoride0.863 / 4 mg/L
22% of EPA limit
Barium0.031 / 2 mg/L
2% 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, 7 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. 7 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.
Is Fort Atkinson water hard?
Yes. Fort Atkinson water has a hardness of 320 mg/L (very hard). Hard water is not a health concern but can cause scale buildup in water heaters and appliances, reduce soap effectiveness, and leave mineral deposits. Water softeners or conditioning systems can address hardness.
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 5 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.

Free water assessment in Fort Atkinson.

Schedule an onsite consultation.