Is Leroy, MN Tap Water Safe to Drink?
Graded A+ with no contaminants above EPA limits. Here's everything we tested and how Leroy ranks. What to do next ↓
95/100
waterverge.com Leroy, MN — Water Quality Report
Leroy's drinking water received a grade of A+ (95 out of 100), indicating excellent water quality. The city's 1 water system serves approximately 959 residents using groundwater.
Lead levels were measured at 4.0 ppb (90th percentile), well within EPA limits. This system has not yet been tested for PFAS under the EPA UCMR 5 program.
No violations are on record for this water system.
What to know about Leroy's water
Leroy ranks #50 out of 466 cities in Minnesota for water quality, placing it above average in the state.
Leroy relies on groundwater, which is generally less vulnerable to surface contamination but can be affected by naturally occurring minerals like arsenic and nitrate, as well as agricultural and industrial runoff.
As a small community water system, Leroy may have fewer resources for advanced treatment technologies and infrastructure upgrades compared to larger utilities.
Leroy has a clean compliance record with no violations on file, reflecting strong operational practices.
Water quality score
See methodology →Is Leroy, MN water safe to drink?
Based on EPA testing data, Leroy's tap water is generally safe to drink. The water system earned a grade of A+ (95/100), meeting federal drinking water standards across key contaminant categories. The city's 1 water system serves approximately 959 residents using groundwater (wells).
Recent water quality updates for Leroy
A timeline of significant water quality events, violations, and data updates.
Latest EPA compliance and testing data incorporated into Leroy's water quality assessment. Grade: A+ (95/100).
Key contaminant findings
Based on the most recent EPA sampling data for Leroy's water supply.
Well within EPA limits.
Where does Leroy's water come from?
Leroy's drinking water comes from groundwater (wells), supplied by 1 water system serving approximately 959 people. Groundwater is generally less susceptible to surface contamination but can contain naturally occurring contaminants like arsenic, radon, and nitrate.
What Leroy residents can do
Your water utility is required to publish an annual Consumer Confidence Report (CCR) with detailed testing results. Ask for the latest copy or check your utility's website.
Run cold water for 30 seconds before drinking, especially in the morning. Lead and copper leach from household plumbing when water sits in pipes.
Data: EPA SDWIS, UCMR 5 (PFAS), FEMA, NOAA. Last updated May 2026.
Top contaminants to know
View all ↓Violations & advisories
Full contaminants report
| Contaminant | Detected Level | EPA Limit | Unit | Category | Status |
|---|---|---|---|---|---|
| Lead (90th percentile) LeadHeavy Metal A toxic heavy metal that can leach into drinking water from older pipes, solder, and fixtures. No amount of lead in water is considered safe. Health EffectsBrain and nervous system damage in children, kidney damage, high blood pressure, and reproductive problems in adults. EPA Limit15 ppb action level Common SourcesCorrosion of lead pipes, lead solder, brass faucets, and household plumbing. | 4.0 | 15 | ppb | Inorganic | Safe |
Lead level trend (90th percentile)
See how Leroy compares by contaminant
Explore where Leroy ranks among all Minnesota cities for specific contaminants.
Water source & infrastructure
Where Leroy's water comes from
Leroy's drinking water is drawn from underground aquifers through wells.
Groundwater is naturally filtered through rock and soil layers, generally requiring less treatment than surface water. However, it can contain naturally occurring contaminants like arsenic, radon, and minerals.
Agricultural activity, septic systems, and industrial operations near well fields can introduce nitrates, pesticides, and volatile organic compounds.
The system is operated by local government ownership and serves approximately 959 people through 1 water system.
Water systems serving Leroy
| System Name | PWSID | Population | Source |
|---|---|---|---|
| LeRoy | MN1500009 | 959 | GW |
How Leroy compares
Full Minnesota rankings →Leroy's score of 95/100 is above the average of 82/100 among major Minnesota cities. It outscores 10 of 10 nearby cities.
Nearby cities
View Minnesota rankings →Learn more about your water
Guides and resources related to Leroy's water quality findings.
Explore water quality across Mower
Frequently asked questions
Is Leroy, MN tap water safe to drink?
Leroy's water quality earned a grade of A+ (95/100). The water generally meets EPA standards and is considered safe for consumption. The city ranks #50 out of 466 cities tested in Minnesota.
What contaminants are in Leroy's water?
Lead was measured at 4.0 ppb (90th percentile). No violations on record.
How is Leroy's water quality grade calculated?
The grade is based on four factors: violation history (40%), lead and copper levels (25%), PFAS contamination (25%), and regulatory compliance (10%). The score is also adjusted based on how complete the available data is. See our methodology page for full details.
Do I need a water filter in Leroy?
Based on current data, basic filtration should suffice for additional peace of mind.
Where does Leroy's water come from?
Leroy's water is sourced from Groundwater. The city has 1 water system serving approximately 959 residents.
Is Leroy's groundwater at risk of contamination?
Leroy uses groundwater, which can be affected by naturally occurring contaminants like arsenic, radon, and nitrate, as well as agricultural runoff and industrial activity. Current testing shows the groundwater meets EPA standards. Groundwater systems are generally less susceptible to surface contamination but should be monitored for emerging contaminants like PFAS.
How does Leroy's water compare to other cities?
Leroy ranks #50 out of 466 cities in Minnesota (better than 89% of state cities) and #391 out of 15744 cities nationally (98th percentile). The grade of A+ reflects the combined assessment of violation history, lead and copper levels, PFAS contamination, and regulatory compliance.
Does Leroy's small water system affect quality?
Leroy's system serves approximately 959 residents. Small community water systems (under 3,300 people) may have fewer financial resources for infrastructure upgrades and advanced treatment technologies. However, they are held to the same EPA drinking water standards as larger systems. This system has maintained a clean compliance record.