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Water Quality Report

Hartland, WI

Waukesha County · 9,212 residents · 1 water system

13

Contaminants detected

8

PFAS compounds

460

Hardness (mg/L)

0

Above legal limits

1

Above health guidelines

Hartland drinking water comes from groundwater wells. Based on the most recent monitoring data, 13 contaminants have been detected in the water supply, including Lead, Nitrate, Copper, Total Trihalomethanes, and 9 others. PFAS compounds have been detected at trace levels in Hartland water. Water hardness is 460 mg/L (very hard), which can cause scale buildup in appliances and reduce soap effectiveness.

Contaminants detected in Hartland water

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

Lead0.01 / 0.015 mg/L
67% of EPA limit
Nitrate5.4 / 10 mg/L
54% of EPA limit
Copper160 / 1300 ug/L
12% of EPA limit
3% of EPA limit
2% of EPA limit
Nickel0.0016 mg/L
UnregulatedInorganic
Selenium0.0013 / 0.05 mg/L
3% of EPA limit
PFHpA (Perfluoroheptanoic Acid)1.7 ng/L
UnregulatedPFAS
Fluoride0.3 / 4 mg/L
8% of EPA limit
Metolachlor0.028 ug/L
UnregulatedVOC
Pfhxa0.004 ug/L
Unregulated
Pfpea0.0046 ug/L
Unregulated
PFBA (Perfluorobutanoic Acid)0.0051 ug/L
UnregulatedPFAS
PFAS (8 compounds detected)
Microplastics (not routinely tested)

Other cities in Waukesha County

Water quality reports for nearby Wisconsin communities.

Frequently asked questions

Is Hartland, WI tap water safe to drink?
Hartland tap water meets EPA legal standards (Maximum Contaminant Levels). However, 1 contaminant is present above independent health guidelines, which are often stricter than legal limits. 13 contaminants have been detected in the water supply, including Lead, Nitrate, Copper, Total Trihalomethanes, Haloacetic Acids (HAA5). 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 Hartland water?
Monitoring has detected 13 contaminants in Hartland's water supply: Lead, Nitrate, Copper, Total Trihalomethanes, Haloacetic Acids (HAA5), Nickel, Selenium, PFHpA (Perfluoroheptanoic Acid), Fluoride, Metolachlor, Pfhxa, Pfpea, PFBA (Perfluorobutanoic Acid). Additionally, 8 PFAS compounds have been detected at trace levels. 1 exceed health guidelines. See individual system reports for concentrations relative to EPA limits.
Does Hartland water have PFAS?
Yes. 8 PFAS compounds have been detected in Hartland'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 Hartland water hard?
Yes. Hartland water has a hardness of 460 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 Hartland get its drinking water?
Hartland'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. Hartland is served by one water system: HARTLAND WATERWORKS.

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