Is Dundas, MN Tap Water Safe to Drink?
Graded A, with 1 unresolved violation on record. See what was cited — and what it means for your tap. What to do next ↓
91.3/100
waterverge.com Dundas, MN — Water Quality Report
Dundas's drinking water received a grade of A (91.3 out of 100), indicating excellent water quality. The city's 2 water systems serve approximately 1,539 residents using groundwater.
Lead levels were measured at 3.0 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 9 violations on record, including 0 health-based violations. 1 remains unresolved.
What to know about Dundas's water
Dundas ranks #172 out of 466 cities in Minnesota for water quality, placing it mid-range in the state.
Dundas 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, Dundas may have fewer resources for advanced treatment technologies and infrastructure upgrades compared to larger utilities.
Water quality score
See methodology →Is Dundas, MN water safe to drink?
Dundas's tap water meets most EPA standards but has areas that warrant attention. With a grade of A (91.3/100), some contaminant levels or compliance issues suggest that residents may benefit from additional filtration. The city's 2 water systems serve approximately 1,539 residents using groundwater (wells).
Recent water quality updates for Dundas
A timeline of significant water quality events, violations, and data updates.
Latest EPA compliance and testing data incorporated into Dundas's water quality assessment. Grade: A (91.3/100).
Contaminants: Revised Total Coliform Rule.
Contaminants: Chlorine, Revised Total Coliform Rule.
Federal disaster declaration (FEMA DR-4797). Flood event — may have impacted local water infrastructure.
Contaminants: Revised Total Coliform Rule.
Federal disaster declaration (FEMA DR-4290). Flood event — may have impacted local water infrastructure.
Key contaminant findings
Based on the most recent EPA sampling data for Dundas's water supply.
Well within EPA limits.
Violation history
Dundas's water system has 9 total violations on record, including 0 health-based violations. 1 remain unresolved. 4 violations were issued in the last 5 years.
Flood & environmental risk
Rice County has experienced 6 federally declared disasters since 1965. 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 Cannon River, Chub Creek.
Where does Dundas's water come from?
Dundas's drinking water comes from groundwater (wells), supplied by 2 water systems serving approximately 1,539 people. Groundwater is generally less susceptible to surface contamination but can contain naturally occurring contaminants like arsenic, radon, and nitrate. Nearby water bodies include Cannon River (river), Chub Creek (river).
What Dundas 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.
Dundas'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 Dundas
Industrial polluters nearby
Reported releases to surface water by facilities near Dundas, ranked by pounds discharged annually.
| Facility | Top chemical | To surface water (lbs/yr) | Distance |
|---|---|---|---|
NORTHERN TOOL & EQUIPMENT FARIBAULT, MN55021 | — | — | 8.5 mi |
DAIKIN APPLIED FARIBAULT, MN55021 | — | — | 8.5 mi |
DAIKIN APPLIED AMERICAS INC. FARIBAULT, MN55021 | — | — | 6.1 mi |
MOM BRANDS NORTHFIELD, MN55057 | — | — | 2.5 mi |
CCM - NORTHFIELD NORTHFIELD, MN55057 | — | — | 1.3 mi |
Source: EPA Toxic Release Inventory (TRI) 2023
Flood & disaster history
Rice County has experienced 6 federally declared disasters since 1965. 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. | 3.0 | 15 | ppb | Inorganic | Safe |
Lead level trend (90th percentile)
See how Dundas compares by contaminant
Explore where Dundas ranks among all Minnesota cities for specific contaminants.
Water source & infrastructure
Where Dundas's water comes from
Dundas'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 1,539 people through 2 water systems.
Water bodies near Dundas
Dundas is located near 2 notable water bodies. These water bodies contribute to the regional watershed and may indirectly affect groundwater quality.
Water systems serving Dundas
| System Name | PWSID | Population | Source |
|---|---|---|---|
| Dundas | MN1660015 | 1,490 | GW |
| Morgedal Homeowners Association | MN1660017 | 49 | GW |
How Dundas compares
Full Minnesota rankings →Dundas's score of 91.3/100 is above the average of 82/100 among major Minnesota cities. It outscores 9 of 10 nearby cities.
Nearby cities
View Minnesota rankings →About Dundas, MN
Learn more about your water
Guides and resources related to Dundas's water quality findings.
Explore water quality across Rice
Frequently asked questions
Is Dundas, MN tap water safe to drink?
Dundas's water quality earned a grade of A (91.3/100). The water generally meets EPA standards and is considered safe for consumption. The city ranks #172 out of 466 cities tested in Minnesota.
What contaminants are in Dundas's water?
Lead was measured at 3.0 ppb (90th percentile). 9 violations are on record.
How is Dundas'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 Dundas?
Based on current data, basic filtration should suffice for additional peace of mind.
Where does Dundas's water come from?
Dundas's water is sourced from Groundwater. The city has 2 water systems serving approximately 1,539 residents.
Is Dundas's groundwater at risk of contamination?
Dundas 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 9 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 Dundas's water compare to other cities?
Dundas ranks #172 out of 466 cities in Minnesota (better than 63% of state cities) and #1770 out of 15744 cities nationally (89th percentile). The grade of A reflects the combined assessment of violation history, lead and copper levels, PFAS contamination, and regulatory compliance.