Skip to content

Water Quality Report

Mahnomen, MN

Mahnomen County · 1,217 residents · 1 water system

5

Contaminants detected

0

PFAS compounds

—

Hardness (mg/L)

0

Above legal limits

2

Above health guidelines

Mahnomen drinking water comes from groundwater wells. Based on the most recent monitoring data, 5 contaminants have been detected in the water supply, including Lead, Nitrate, Arsenic, Trichloroethylene, and 1 others.

Contaminants detected in Mahnomen water

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

Lead0 / 0.015 mg/L
0% of EPA limit
Nitrate0.64 / 10 mg/L
6% of EPA limit
Arsenic0.0044 / 0.01 mg/L
44% of EPA limit
Trichloroethylene0.05 / 5 ug/L
1% of EPA limit
Tetrachloroethylene0.1 / 5 ug/L
2% of EPA limit
Microplastics (not routinely tested)

Other cities in Mahnomen County

Water quality reports for nearby Minnesota communities.

Frequently asked questions

Is Mahnomen, MN tap water safe to drink?
Mahnomen 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. 5 contaminants have been detected in the water supply, including Lead, Nitrate, Arsenic, Trichloroethylene, Tetrachloroethylene. 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 Mahnomen water?
Monitoring has detected 5 contaminants in Mahnomen's water supply: Lead, Nitrate, Arsenic, Trichloroethylene, Tetrachloroethylene. 2 exceed health guidelines. See individual system reports for concentrations relative to EPA limits.
Where does Mahnomen get its drinking water?
Mahnomen's drinking water comes from groundwater wells that draw from underground aquifers. The water is treated and tested according to Minnesota Department of Health and EPA requirements before distribution. Mahnomen is served by one water system: Mahnomen.

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 Mahnomen.

Schedule an onsite consultation.