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Water Quality Report

Kaukauna, WI

Outagamie County · 18,088 residents · 3 water systems

17

Contaminants detected

1

PFAS compounds

680

Hardness (mg/L)

3

Above legal limits

10

Above health guidelines

Kaukauna drinking water comes from groundwater wells. Based on the most recent monitoring data, 17 contaminants have been detected in the water supply, including Lead, Nitrate, Arsenic, Copper, and 13 others. PFAS compounds have been detected at trace levels in Kaukauna water. Water hardness is 680 mg/L (very hard), which can cause scale buildup in appliances and reduce soap effectiveness.

Contaminants detected in Kaukauna water

Detection does not necessarily mean unsafe levels. See individual reports for concentrations and EPA limits.

Lead0.0024 / 0.015 mg/L
16% of EPA limit
Nitrate0.2 / 10 mg/L
2% of EPA limit
Arsenic0.0029 / 0.01 mg/L
29% of EPA limit
Copper253 / 1300 ug/L
19% of EPA limit
Radium5.8 / 5 pCi/L
116% of EPA limit
Uranium0.481 / 30 ug/L
2% of EPA limit
Gross Alpha Radiation11 / 15 pCi/L
73% of EPA limit
Total Trihalomethanes9.3 / 80 ug/L
12% of EPA limit
Haloacetic Acids (HAA5)2.9 / 60 ug/L
5% of EPA limit
Nickel0.014 mg/L
UnregulatedInorganic
Selenium0.0083 / 0.05 mg/L
17% of EPA limit
Xylenes2.7 / 10000 ug/L
0% of EPA limit
Ethylbenzene0.23 / 700 ug/L
0% of EPA limit
Barium0.0083 / 2 mg/L
0% of EPA limit
Fluoride1.9 / 4 mg/L
48% of EPA limit
Toluene0.49 / 1000 ug/L
0% of EPA limit
Lithium16 ug/L
Unregulated
PFAS (1 compounds detected)
Microplastics (not routinely tested)

Water systems serving Kaukauna

KAUKAUNA UTILITIES

17,493 servedGroundwater17 contaminants1 above legal limit4 above guidelines
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HOLLAND TN SANITARY DIST

495 servedGroundwater25 contaminants2 above legal limits3 above guidelines
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RUEDEN RIDGE SUBDIVISION

100 servedGroundwater14 contaminants3 above guidelines
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Other cities in Outagamie County

Water quality reports for nearby Wisconsin communities.

AppletonBear CreekBlack CreekCombined LocksFreedomGrand ChuteGreenvilleHortonvilleKimberlyLittle ChuteNicholsSeymour

Frequently asked questions

Is Kaukauna, WI tap water safe to drink?
Kaukauna tap water has 3 contaminants currently measured above EPA legal standards (Maximum Contaminant Levels), and 10 above independent health guidelines. 17 contaminants have been detected in the water supply, including Lead, Nitrate, Arsenic, Copper, Radium. View the detailed report for each water system to see specific levels, how they compare to both legal limits and health guidelines, and what actions to take.
What contaminants are in Kaukauna water?
Monitoring has detected 17 contaminants in Kaukauna's water supply: Lead, Nitrate, Arsenic, Copper, Radium, Uranium, Gross Alpha Radiation, Total Trihalomethanes, Haloacetic Acids (HAA5), Nickel, Selenium, Xylenes, Ethylbenzene, Barium, Fluoride, Toluene, Lithium. Additionally, 1 PFAS compounds have been detected at trace levels. 3 of these are above EPA legal limits. 10 exceed health guidelines. See individual system reports for concentrations relative to EPA limits.
Does Kaukauna water have PFAS?
Yes. 1 PFAS compounds have been detected in Kaukauna's water supply at trace levels. PFAS are sometimes called "forever chemicals" because they do not break down in the environment. The EPA has set Maximum Contaminant Levels for several PFAS compounds. View the detailed report for specific concentrations.
Is Kaukauna water hard?
Yes. Kaukauna water has a hardness of 680 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 Kaukauna get its drinking water?
Kaukauna'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. Kaukauna is served by 3 water systems, the largest being KAUKAUNA UTILITIES (serving 17,493 people).

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