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Water Quality Report

Fergus Falls, WI

Otter Tail County · 14,362 residents · 2 water systems

2

Contaminants detected

1

PFAS compounds

Hardness (mg/L)

0

Above legal limits

1

Above health guidelines

Fergus Falls drinking water comes from a mix of groundwater and surface water sources. Based on the most recent monitoring data, 2 contaminants have been detected in the water supply, including Lead, Lithium. PFAS compounds have been detected at trace levels in Fergus Falls water.

Contaminants detected in Fergus Falls water

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

Lead0.008 / 0.015 mg/L
53% of EPA limit
Lithium10.2 ug/L
Unregulated
PFAS (1 compounds detected)
Microplastics (not routinely tested)

Other cities in Otter Tail County

Water quality reports for nearby Minnesota communities.

Frequently asked questions

Is Fergus Falls, WI tap water safe to drink?
Fergus Falls 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. 2 contaminants have been detected in the water supply, including Lead, Lithium. 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 Fergus Falls water?
Monitoring has detected 2 contaminants in Fergus Falls's water supply: Lead, Lithium. Additionally, 1 PFAS compounds have been detected at trace levels. 1 exceed health guidelines. See individual system reports for concentrations relative to EPA limits.
Does Fergus Falls water have PFAS?
Yes. 1 PFAS compounds have been detected in Fergus Falls'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.
Where does Fergus Falls get its drinking water?
Fergus Falls's drinking water comes from a combination of groundwater and surface water sources. The water is treated and tested according to Wisconsin DNR and EPA requirements before distribution. Fergus Falls is served by 2 water systems, the largest being Fergus Falls (serving 14,194 people).

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