Stewartville, MN water hardness
Reported by Stewartville · July 2022
- MN typical
- 160 mg/L
- EPA health violations since 2016
- 0
- Data
- Utility report
Tap water in Stewartville has about 14 mg/L of hardness, which is 0.8 grains per gallon. On the USGS scale that counts as soft. The number comes from Stewartville, dated July 2022.
At 14 mg/L, Stewartville is 146 mg/L below the typical Minnesota figure of 160. None of the 10 nearest cities we track has softer water. The range nearby runs from 270 mg/L in Hastings to 435 in New Prague.
What 14 mg/L means at home
Soap and shampoo lather with very little product. Kettles and showerheads stay mostly free of white crust.
Some people notice that soap feels slow to rinse off in soft water. That slippery feel is normal and harmless.
Hardness is not a health problem, and EPA sets no limit for it. It is a matter of scale and soap.
What to do about it
Nothing, as far as hardness goes. At 14 mg/L a softener would have almost nothing to remove.
Carbon filter
If the water tastes of chlorine, a pitcher or faucet carbon filter takes care of that. It does not change hardness.
EPA record for Stewartville's water system
No health-based violations since 2016
Serves about 6,850 people from groundwater.
- Health-based
- 0
- Monitoring or reporting
- 0
- Open now
- 0
Health-based means a contaminant above its legal limit or a missed treatment step. Monitoring and reporting violations are late or missing tests and notices. Source: EPA ECHO, 2026Q3 export, violations with periods starting 2016 or later. Full EPA record.
Questions
Is Stewartville water hard?
No. It measures about 14 mg/L (0.8 grains per gallon), which the USGS classes as soft.
What is the water hardness in Stewartville in grains per gallon?
About 0.8 gpg. One grain per gallon equals 17.1 mg/L, so 14 mg/L divided by 17.1 gives 0.8.
Has the Stewartville water system had EPA violations?
EPA records show no health-based violations for Stewartville since 2016.
Nearby cities
- Rochester316 mg/LVery hard
- Faribault302 mg/LVery hard
- Northfield322 mg/LVery hard
- Hastings270 mg/LVery hard
- Farmington270 mg/LVery hard
- Rosemount270 mg/LVery hard
- Lakeville270 mg/LVery hard
- Cottage Grove330 mg/LVery hard
- New Prague435 mg/LVery hard
- Inver Grove Heights270 mg/LVery hard
Hardness data: TapWaterData US Water Hardness (utility report, July 27, 2022), CC BY 4.0. Population: US Census Bureau. Violations: EPA ECHO. How we use them.