Is Royalton, MN Tap Water Safe to Drink?
Graded B-, with 13 unresolved violations on record. See what was cited — and what it means for your tap. What to do next ↓
70.2/100
waterverge.com Royalton, MN — Water Quality Report
Royalton's drinking water received a grade of B- (70.2 out of 100), indicating fair water quality. The city's 2 water systems serve approximately 1,326 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.
The system has 162 violations on record, including 18 health-based violations. 13 remain unresolved.
What to know about Royalton's water
Royalton ranks #440 out of 466 cities in Minnesota for water quality, placing it among the lowest-rated in the state.
Royalton 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, Royalton may have fewer resources for advanced treatment technologies and infrastructure upgrades compared to larger utilities.
The system has seen 7 violations in the past five years, suggesting a pattern of compliance challenges that residents should monitor closely.
Water quality score
See methodology →Is Royalton, MN water safe to drink?
Royalton's drinking water has significant quality concerns based on EPA testing data. With a grade of B- (70.2/100), the system has issues across multiple categories. A water filter is recommended for all residents. The city's 2 water systems serve approximately 1,326 residents using groundwater (wells).
Recent water quality updates for Royalton
A timeline of significant water quality events, violations, and data updates.
Latest EPA compliance and testing data incorporated into Royalton's water quality assessment. Grade: B- (70.2/100).
Contaminants: Consumer Confidence Rule.
1 health-based. Contaminants: LEAD AND COPPER RULE REVISIONS.
1 health-based. Contaminants: Combined Radium (-226 and -228), Total Haloacetic Acids (HAA5), TTHM.
Federal disaster declaration (FEMA DR-4722). Flood event — may have impacted local water infrastructure.
Federal disaster declaration (FEMA DR-3242). Hurricane event — may have impacted local water infrastructure.
Key contaminant findings
Based on the most recent EPA sampling data for Royalton's water supply.
Well within EPA limits.
Violation history
Royalton's water system has 162 total violations on record, including 18 health-based violations. 13 remain unresolved. 7 violations were issued in the last 5 years.
Flood & environmental risk
Morrison County has experienced 8 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 Mississippi River.
Where does Royalton's water come from?
Royalton's drinking water comes from groundwater (wells), supplied by 2 water systems serving approximately 1,326 people. Groundwater is generally less susceptible to surface contamination but can contain naturally occurring contaminants like arsenic, radon, and nitrate. Nearby water bodies include Mississippi River (river).
What Royalton residents can do
Recommended: NSF-certified water filter. This addresses the specific contaminants found in Royalton'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.
Run cold water for 30 seconds before drinking, especially in the morning. Lead and copper leach from household plumbing when water sits in pipes.
Royalton'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 Royalton
Industrial polluters nearby
Reported releases to surface water by facilities near Royalton, ranked by pounds discharged annually.
| Facility | Top chemical | To surface water (lbs/yr) | Distance |
|---|---|---|---|
POLAR TANK TRAILER HOLDINGFORD, MN56340 | — | — | 7.0 mi |
CENTRAL MARBLE PRODUCTS INC RICE, MN56367 | — | — | 9.1 mi |
VIRNIG MANUFACTURING INC. RICE, MN56367 | — | — | 5.4 mi |
Source: EPA Toxic Release Inventory (TRI) 2023
Flood & disaster history
Morrison County has experienced 8 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. | 4.0 | 15 | ppb | Inorganic | Safe |
Lead level trend (90th percentile)
See how Royalton compares by contaminant
Explore where Royalton ranks among all Minnesota cities for specific contaminants.
Water source & infrastructure
Where Royalton's water comes from
Royalton'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 1,326 people through 2 water systems.
Water bodies near Royalton
Royalton is located near 1 notable water body. These water bodies contribute to the regional watershed and may indirectly affect groundwater quality.
Water systems serving Royalton
| System Name | PWSID | Population | Source |
|---|---|---|---|
| Royalton | MN1490006 | 1,266 | GW |
| ROYALTON TERRACE | VT0005331 | 60 | GW |
How Royalton compares
Full Minnesota rankings →Royalton's score of 70.2/100 is below the average of 82/100 among major Minnesota cities. It outscores 1 of 10 nearby cities. 9 of 10 nearby cities score higher.
Nearby cities
View Minnesota rankings →About Royalton, MN
Wikipedia →Royalton is a city in Morrison and Benton counties in the U.S. state of Minnesota, along the Platte River. The population was 1,281 at the 2020 census. The city is located mainly within Morrison County.
Learn more about your water
Guides and resources related to Royalton's water quality findings.
Explore water quality across Morrison
Frequently asked questions
Is Royalton, MN tap water safe to drink?
Royalton's water quality earned a grade of B- (70.2/100). Some concerns have been identified. Consider a water filter for an extra layer of protection. The city ranks #440 out of 466 cities tested in Minnesota.
What contaminants are in Royalton's water?
Lead was measured at 4.0 ppb (90th percentile). 162 violations are on record.
How is Royalton'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 Royalton?
Based on current data, basic filtration should suffice for additional peace of mind.
Where does Royalton's water come from?
Royalton's water is sourced from Groundwater. The city has 2 water systems serving approximately 1,326 residents.
What health violations has Royalton's water system had?
Royalton has 18 health-based violations on record. The most recent violation was recorded in July 2025. Health-based violations mean the water exceeded EPA maximum contaminant levels (MCLs) for a regulated substance. 13 violations remain unresolved.
Is Royalton's groundwater at risk of contamination?
Royalton 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 162 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 Royalton's water compare to other cities?
Royalton ranks #440 out of 466 cities in Minnesota (better than 6% of state cities) and #10794 out of 15744 cities nationally (31th percentile). The grade of B- reflects the combined assessment of violation history, lead and copper levels, PFAS contamination, and regulatory compliance.