Is Kasota, MN Tap Water Safe to Drink?
Graded A, with 3 unresolved violations on record. See what was cited — and what it means for your tap. What to do next ↓
90.9/100
waterverge.com Kasota, MN — Water Quality Report
Kasota's drinking water received a grade of A (90.9 out of 100), indicating excellent water quality. The city's 2 water systems serve approximately 704 residents using groundwater.
Lead levels were measured at 2.0 ppb (90th percentile), well within EPA limits. This system has not yet been tested for PFAS under the EPA UCMR 5 program.
The system has 18 violations on record, including 8 health-based violations. 3 remain unresolved.
What to know about Kasota's water
Kasota ranks #191 out of 466 cities in Minnesota for water quality, placing it mid-range in the state.
Kasota 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, Kasota may have fewer resources for advanced treatment technologies and infrastructure upgrades compared to larger utilities.
Water quality score
See methodology →Is Kasota, MN water safe to drink?
Kasota's drinking water has significant quality concerns based on EPA testing data. With a grade of A (90.9/100), the system has issues across multiple categories. A water filter is recommended for all residents. The city's 2 water systems serve approximately 704 residents using groundwater (wells).
Recent water quality updates for Kasota
A timeline of significant water quality events, violations, and data updates.
Latest EPA compliance and testing data incorporated into Kasota's water quality assessment. Grade: A (90.9/100).
Contaminants: Revised Total Coliform Rule.
Federal disaster declaration (FEMA DR-4797). Flood event — may have impacted local water infrastructure.
Contaminants: Lead and Copper Rule.
Federal disaster declaration (FEMA DR-4442). Flood event — may have impacted local water infrastructure.
Contaminants: Revised Total Coliform Rule.
Key contaminant findings
Based on the most recent EPA sampling data for Kasota's water supply.
Well within EPA limits.
Violation history
Kasota's water system has 18 total violations on record, including 8 health-based violations. 3 remain unresolved. 2 violations were issued in the last 5 years.
Flood & environmental risk
Le Sueur County has experienced 10 federally declared disasters since 1969. Flooding and severe storms can overwhelm water treatment plants, cause sewage overflows, and introduce agricultural runoff, bacteria, and sediment into drinking water supplies. Local water sources include Minnesota River.
Where does Kasota's water come from?
Kasota's drinking water comes from groundwater (wells), supplied by 2 water systems serving approximately 704 people. Groundwater is generally less susceptible to surface contamination but can contain naturally occurring contaminants like arsenic, radon, and nitrate. Nearby water bodies include Minnesota River (river).
What Kasota residents can do
Recommended: NSF-certified water filter. This addresses the specific contaminants found in Kasota's water.
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.
Kasota's area has a history of flooding. After severe weather, watch for boil water advisories from your local utility.
Data: EPA SDWIS, UCMR 5 (PFAS), FEMA, NOAA. Last updated May 2026.
Top contaminants to know
View all ↓Violation summary
Violations & advisories
Top industrial polluters within 10 miles of Kasota
Industrial polluters nearby
Reported releases to surface water by facilities near Kasota, ranked by pounds discharged annually.
| Facility | Top chemical | To surface water (lbs/yr) | Distance |
|---|---|---|---|
CROWN CORK & SEAL CO INC MANKATO, MN56001 | — | — | 7.7 mi |
HUBBARD FEEDS INC MANKATO, MN56001 | — | — | 7.4 mi |
CHS MANKATO MANKATO, MN56001 | — | — | 9.9 mi |
MANKATO ENERGY CENTER MANKATO, MN56001 | — | — | 9.5 mi |
ADM MANKATO, MN56001 | — | — | 7.4 mi |
Source: EPA Toxic Release Inventory (TRI) 2023
Flood & disaster history
Le Sueur County has experienced 10 federally declared disasters since 1969. Flooding and severe weather can compromise water treatment infrastructure and introduce contaminants into drinking water supplies.
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. | 2.0 | 15 | ppb | Inorganic | Safe |
Lead level trend (90th percentile)
See how Kasota compares by contaminant
Explore where Kasota ranks among all Minnesota cities for specific contaminants.
Water source & infrastructure
Where Kasota's water comes from
Kasota'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 704 people through 2 water systems.
Water bodies near Kasota
Kasota is located near 1 notable water body. These water bodies contribute to the regional watershed and may indirectly affect groundwater quality.
Water systems serving Kasota
| System Name | PWSID | Population | Source |
|---|---|---|---|
| Kasota | MN1400005 | 670 | GW |
| Valley Mobile Home Park | MN1400006 | 34 | GW |
How Kasota compares
Full Minnesota rankings →Kasota's score of 90.9/100 is above the average of 82/100 among major Minnesota cities. It outscores 9 of 10 nearby cities.
Nearby cities
View Minnesota rankings →About Kasota, MN
Wikipedia →Kasota is a city within the larger Kasota Township, Le Sueur County, Minnesota, United States. The population was 714 at the 2020 census.
Learn more about your water
Guides and resources related to Kasota's water quality findings.
Explore water quality across Le Sueur
Frequently asked questions
Is Kasota, MN tap water safe to drink?
Kasota's water quality earned a grade of A (90.9/100). The water generally meets EPA standards and is considered safe for consumption. The city ranks #191 out of 466 cities tested in Minnesota.
What contaminants are in Kasota's water?
Lead was measured at 2.0 ppb (90th percentile). 18 violations are on record.
How is Kasota'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 Kasota?
Based on current data, basic filtration should suffice for additional peace of mind.
Where does Kasota's water come from?
Kasota's water is sourced from Groundwater. The city has 2 water systems serving approximately 704 residents.
What health violations has Kasota's water system had?
Kasota has 8 health-based violations on record. The most recent violation was recorded in January 2025. Health-based violations mean the water exceeded EPA maximum contaminant levels (MCLs) for a regulated substance. 3 violations remain unresolved.
Is Kasota's groundwater at risk of contamination?
Kasota uses groundwater, which can be affected by naturally occurring contaminants like arsenic, radon, and nitrate, as well as agricultural runoff and industrial activity. The system has 18 violations on record that may relate to groundwater quality. Groundwater systems are generally less susceptible to surface contamination but should be monitored for emerging contaminants like PFAS.
How does Kasota's water compare to other cities?
Kasota ranks #191 out of 466 cities in Minnesota (better than 59% of state cities) and #1995 out of 15744 cities nationally (87th percentile). The grade of A reflects the combined assessment of violation history, lead and copper levels, PFAS contamination, and regulatory compliance.