Water Quality Report
Rockville, MN
Stearns County · 765 residents · 1 water system
6
Contaminants detected
0
PFAS compounds
—
Hardness (mg/L)
0
Above legal limits
1
Above health guidelines
Rockville drinking water comes from groundwater wells. Based on the most recent monitoring data, 6 contaminants have been detected in the water supply, including Lead, Nitrate, Arsenic, Radium, and 2 others.
Contaminants detected in Rockville 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
Nitrate0.61 / 10 mg/L
6% of EPA limit
Arsenic0.0041 / 0.01 mg/L
41% of EPA limit
Radium0.5 / 5 pCi/L
10% of EPA limit
Total Trihalomethanes13.5 / 80 ug/L
17% of EPA limit
Haloacetic Acids (HAA5)3.1 / 60 ug/L
5% of EPA limit
Microplastics (not routinely tested)
Water systems serving Rockville
Other cities in Stearns County
Water quality reports for nearby Minnesota communities.
Frequently asked questions
Is Rockville, MN tap water safe to drink?
Rockville 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. 6 contaminants have been detected in the water supply, including Lead, Nitrate, Arsenic, Radium, Total Trihalomethanes. 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 Rockville water?
Monitoring has detected 6 contaminants in Rockville's water supply: Lead, Nitrate, Arsenic, Radium, Total Trihalomethanes, Haloacetic Acids (HAA5). 1 exceed health guidelines. See individual system reports for concentrations relative to EPA limits.
Where does Rockville get its drinking water?
Rockville'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. Rockville is served by one water system: Rockville.
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