Mille Lacs County · 911 residents · 2 water systems
6
Contaminants detected
0
PFAS compounds
—
Hardness (mg/L)
1
Above legal limits
3
Above health guidelines
Onamia drinking water comes from groundwater wells. Based on the most recent monitoring data, 6 contaminants have been detected in the water supply, including Lead, Copper, Radium, Total Trihalomethanes, and 2 others.
Contaminants detected in Onamia water
6 total
Detection does not necessarily mean unsafe levels. See individual reports for concentrations and EPA limits.
Onamia tap water has 1 contaminant currently measured above EPA legal standards (Maximum Contaminant Levels), and 3 above independent health guidelines. 6 contaminants have been detected in the water supply, including Lead, Copper, Radium, Total Trihalomethanes, Haloacetic Acids (HAA5). 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 Onamia water?
Monitoring has detected 6 contaminants in Onamia's water supply: Lead, Copper, Radium, Total Trihalomethanes, Haloacetic Acids (HAA5), PFBA (Perfluorobutanoic Acid). 1 of these are above EPA legal limits. 3 exceed health guidelines. See individual system reports for concentrations relative to EPA limits.
Where does Onamia get its drinking water?
Onamia'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. Onamia is served by 2 water systems, the largest being Onamia (serving 831 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.