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Clarks Grove Tap Water Quality Report
Clarks Grove's water has 1 contaminant above EPA MCLGs. Consider using a certified water filter for additional protection.
Water system
Clarks Grove
People Served
695
Health-based violations since 2020
0
Clarks Grove. EPA SDWA violation data as of Q2 2026 (downloaded 2026-07-09).
Latest sample on file
Jul 2022 ยท Clarks Grove
Utilities publish newer results in their annual water quality report (Consumer Confidence Report).
Is Clarks Grove Tap Water Safe to Drink?
We recommend using a certified water filter for additional protection, especially for vulnerable populations like children, pregnant women, and those with compromised immune systems. Clarks Grove's water has 1 contaminant above EPA health-based guidelines (MCLGs), while it meets federal legal limits.
Clarks Grove, Clarks Grove's water system, serves 695 people. Water quality testing is conducted regularly and reported to the EPA. The latest sample on file for Clarks Grove is from Jul 2022.
Boil water advisories are issued by water systems and state agencies, and they change from day to day. Boil water advisories in Minnesota
Clarks Grove Water Service Areas

What these numbers actually mean for Clarks Grove, MN
We read Clarks Grove, MNโs published record and send you a short report โ which findings warrant a decision, which to ignore, and what to do about it. Including when the answer is nothing.
- 1 contaminant above EPA MCLGs and 3 contaminants with an EPA health goal detected in some samples (no level on file)
- 17 results on file
- 1 PFAS compounds on record
Buying a home here? Property Water Report โ $49 Emailed within one business day.
Fluoride in Clarks Grove's water
Clarks Grove
PWSID MN1240005
Clarks Grove reported 0.665 mg/L, below the 0.7 mg/L U.S. Public Health Service recommendation.
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What Clarks Grove's water readings can explain
Utility-reported data for Clarks Grove includes sulfate โ the readings behind these common tap water questions. We publish a city-level hardness figure for Clarks Grove, resolved from its water systems where they report one and estimated from county sampling where they do not. Each page starts with the hot-tap and cold-tap check, then shows what your own water system reported.
On a private well near Clarks Grove? Public-water results do not apply to private wells. See Freeborn County well water testing and USGS risk data โ modeled arsenic, nitrate, and the tests to run.
Water softener cost and installation in Clarks Grove
Clarks Grove's tap water has an estimated 17.2 grains per gallon (294.0 mg/L, county sampling in Freeborn County) โ very hard on the USGS scale, the range where scale on fixtures and appliances is the usual complaint.
Water softener cost for an estimated 17.2 gpg water in Clarks Grove โ equipment and local installation labour for your ZIP code, with the sizing arithmetic shown in full. For the national picture first, read what a water softener costs โ equipment, installation labour and ten-year ownership, each separated out. For Minnesota as a whole, read water softener cost in Minnesota โ priced against the plumber wage published for the state.
Frequently Asked Questions About Clarks Grove Tap Water
Clarks Grove's water has 1 contaminant above EPA MCLGs. While the water meets federal legal limits, we recommend using a certified water filter for additional protection, especially for vulnerable populations like children, pregnant women, and those with compromised immune systems.
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This form corrects our data; it does not reach Clarks Grove. For a problem with your water now (discolored water, no water, low pressure, a leak), contact Clarks Grove directly.
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