WaterVerge

Is Wheaton, MN Tap Water Safe to Drink?

Graded A- — but Copper was detected above EPA limits. Here's what's in the water and how to remove it. What to do next ↓

1K residents served 1 water system PWSID: MN1780004
Overall Score
89.5 / 100
Violations
1 active
Last Updated
May 2026
Source
Groundwater
#235 of 466 in Minnesota Top 18% nationally
Local Government
Moderate data confidence
Reviewed by WaterVerge Editorial Team · Last updated May 2026
A-GRADE
Water Quality Grade
89.5/100
waterverge.com
A- 89.5/100

Wheaton, MN — Water Quality Report

Wheaton's drinking water received a grade of A- (89.5 out of 100), indicating good water quality. The city's 1 water system serves approximately 1,465 residents using groundwater.

Lead levels were measured at 0.0 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 7 violations on record, including 0 health-based violations. 1 remains unresolved.

Data last updated: May 2026 · Source: EPA SDWIS, UCMR 5
Analysis

What to know about Wheaton's water

Wheaton ranks #235 out of 466 cities in Minnesota for water quality, placing it below average in the state.

Wheaton 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, Wheaton may have fewer resources for advanced treatment technologies and infrastructure upgrades compared to larger utilities.

Quality Breakdown

Water quality score

See methodology →
89.5 out of 100 Grade A-
A: 90-100
B: 74-89
C: 60-73
F: <50
How is this calculated?
Violations
43.5/45
A
Historical violation record including health-based and monitoring violations.
Lead & Copper
16/20
B
Lead at 0.0 ppb (90th percentile).
Contaminants
17/20
B
PFAS + legacy contaminant analysis.
Compliance
8/10
B
Monitoring and reporting compliance with EPA regulations.
Source Risk
5/5
A
Water source: Groundwater.
Water Safety

Is Wheaton, MN water safe to drink?

Use Caution

Wheaton's tap water meets most EPA standards but has areas that warrant attention. With a grade of A- (89.5/100), some contaminant levels or compliance issues suggest that residents may benefit from additional filtration. The city's 1 water system serves approximately 1,465 residents using groundwater (wells).

1
Active Violations
0.0 ppb
Lead (90th %ile)
10 events
Disaster History

Recent water quality updates for Wheaton

A timeline of significant water quality events, violations, and data updates.

Update
Water quality data updated

Latest EPA compliance and testing data incorporated into Wheaton's water quality assessment. Grade: A- (89.5/100).

Disaster
SEVERE STORMS AND FLOODING

Federal disaster declaration (FEMA DR-4722). Flood event — may have impacted local water infrastructure.

Violation
2 drinking water violations recorded

Contaminants: Total Haloacetic Acids (HAA5), TTHM.

Violation
2 drinking water violations recorded

Contaminants: Chlorine, Revised Total Coliform Rule.

Disaster
SEVERE WINTER STORM, STRAIGHT-LINE WINDS, AND FLOODING

Federal disaster declaration (FEMA DR-4442). Flood event — may have impacted local water infrastructure.

Violation
1 drinking water violation recorded

Contaminants: Coliform (TCR).

Key contaminant findings

Based on the most recent EPA sampling data for Wheaton's water supply.

Lead Within Limits
Detected: 0.0 ppb Limit: 15 ppb (EPA Action Level)

Well within EPA limits.

Copper Exceeds Limit
Detected: 3.30 mg/L Limit: 1.3 mg/L (EPA Action Level)

Exceeds EPA action level. Copper can leach from household plumbing — flush taps for 30 seconds before drinking.

Violation history

Wheaton's water system has 7 total violations on record, including 0 health-based violations. 1 remain unresolved. 2 violations were issued in the last 5 years.

MRMON
Most recent violations:
Oct 2021 Total Haloacetic Acids (HAA5) Resolved
Oct 2021 TTHM Resolved
Oct 2020 Chlorine Resolved
Oct 2020 Revised Total Coliform Rule Resolved
Oct 1995 Coliform (TCR) Resolved

Flood & environmental risk

Traverse County has experienced 10 federally declared disasters since 1989. 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 Mustinka River Above Wheaton, Lake Traverse, Lake Traverse Otlt, Mud Lake North Of 670Th Street, Mud Lake Above White Rock Dam.

SEVERE STORMS AND FLOODING
Flood FEMA DR-4722
SEVERE WINTER STORM, STRAIGHT-LINE WINDS, AND FLOODING
Flood FEMA DR-4442
SEVERE STORMS AND FLOODING
Flood FEMA DR-1982

Where does Wheaton's water come from?

Wheaton's drinking water comes from groundwater (wells), supplied by 1 water system serving approximately 1,465 people. Groundwater is generally less susceptible to surface contamination but can contain naturally occurring contaminants like arsenic, radon, and nitrate. Nearby water bodies include Mustinka River Above Wheaton (river), Lake Traverse (lake), Lake Traverse Otlt (river), Mud Lake North Of 670Th Street (lake), Mud Lake Above White Rock Dam (lake).

What Wheaton residents can do

Request your utility's CCR

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.

Monitor alerts during storms

Wheaton'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.

Contaminant Alerts

Top contaminants to know

View all ↓
Lead (90th percentile)
Inorganic / Heavy Metal
Safe
0.0 ppb
EPA Action Level: 15 ppb · 0% of limit
Safe Level
Copper (90th percentile)
Inorganic
Over Limit
3.30 mg/L
EPA Action Level: 1.3 mg/L · +20% over limit
Exceeds Limit
Compliance Record

Violation summary

7
Total violations
0
Health-based
1
Active / unresolved
Oct 2021
Most recent violation
Compliance Record

Violations & advisories

7 Total
1 Active
0 Health-based
6 Resolved
Violations by category
Stage 2 Disinfectants and Disinfection Byproducts Rule
2
Total Coliform Rule
2
Stage 1 Disinfectants and Disinfection Byproducts Rule
1
Revised Total Coliform Rule
1
Active
Compliance Violation
Monitoring 0
Oct 2021 Resolved
Total Haloacetic Acids (HAA5)
Monitoring & Reporting
Monitoring & Reporting Resolved Dec 2021
Oct 2021 Resolved
TTHM
Monitoring & Reporting
Monitoring & Reporting Resolved Dec 2021
Oct 2020 Resolved
Chlorine
Monitoring & Reporting
Monitoring & Reporting Resolved Dec 2020
Oct 2020 Resolved
Revised Total Coliform Rule
Monitoring
Monitoring Resolved Oct 2020
Oct 1995 Resolved
Coliform (TCR)
Monitoring & Reporting
Monitoring & Reporting Resolved Oct 1995
Jan 1995 Resolved
Coliform (TCR)
Monitoring & Reporting
Monitoring & Reporting Resolved Jan 1995
Environmental Risk

Flood & disaster history

10
Declared disasters
Jul 2023
Most recent
Flood
Most common type

Traverse County has experienced 10 federally declared disasters since 1989. Flooding and severe weather can compromise water treatment infrastructure and introduce contaminants into drinking water supplies.

Jul 2023
SEVERE STORMS AND FLOODING
Flood FEMA #4722
Jun 2019
SEVERE WINTER STORM, STRAIGHT-LINE WINDS, AND FLOODING
Flood FEMA #4442
May 2011
SEVERE STORMS AND FLOODING
Flood FEMA #1982
Apr 2010
FLOODING
Flood FEMA #1900
Mar 2010
FLOODING
Flood FEMA #3310
Sep 2005
HURRICANE KATRINA EVACUATION
Hurricane FEMA #3242

Recommended water filters

Based on contaminants detected in Wheaton's water supply, we recommend the following filter types.

🔧
For Copper
Reverse Osmosis or KDF Filter
Copper exceeds the EPA action level of 1.3 mg/L

Full contaminants report

Contaminant Detected Level EPA Limit Unit Category Status
Lead (90th percentile) 0.0 15 ppb Inorganic Safe
Copper (90th percentile) 3.30 1.3 mg/L Inorganic Over Limit
Data source: EPA SDWIS, UCMR 5, local utility CCR.

Lead level trend (90th percentile)

EPA action level: 15 ppb
Lead has decreased by 4.0 ppb from 1997 (4.0 ppb) to 2023 (0.0 ppb).

Copper level (90th percentile)

Latest reading: 3.300 mg/L (1994)

EPA action level: 1.3 mg/L

Infrastructure

Water source & infrastructure

Primary Source
Groundwater
Operator
Local Government
Population Served
1,465
Water Systems
1
Water Source

Where Wheaton's water comes from

Groundwater

Wheaton'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 1,465 people through 1 water system.

Local Hydrology

Water bodies near Wheaton

Wheaton is located near 5 notable water bodies. These water bodies contribute to the regional watershed and may indirectly affect groundwater quality.

Mustinka River Above Wheaton
river
Lake Traverse
lake
Lake Traverse Otlt
river
Mud Lake North Of 670Th Street
lake
Mud Lake Above White Rock Dam
lake
Infrastructure

Water systems serving Wheaton

System Name PWSID Population Source
Wheaton MN1780004 1,465 GW
Regional Comparison

How Wheaton compares

Full Minnesota rankings →

Wheaton's score of 89.5/100 is above the average of 82/100 among major Minnesota cities. It outscores 9 of 10 nearby cities.

Wheaton (this city)
89.5
St. Paul
73.3
Rochester
69.7
Minnesota avg
82
City Profile

About Wheaton, MN

Wikipedia →

Wheaton is a city and the county seat of Traverse County, Minnesota, United States. The population was 1,460 at the 2020 census.

Economic Profile
$49,727
Median Income
$80,900
Median Home Value
$563/mo
Median Rent
3.5%
Unemployment
Community
45.2
Median Age
298
People / sq mi
15.6%
College Educated
77.1%
Homeownership
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Frequently asked questions

Is Wheaton, MN tap water safe to drink?

Wheaton's water quality earned a grade of A- (89.5/100). The water generally meets EPA standards and is considered safe for consumption. The city ranks #235 out of 466 cities tested in Minnesota.

What contaminants are in Wheaton's water?

Lead was measured at 0.0 ppb (90th percentile). 7 violations are on record.

How is Wheaton'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 Wheaton?

Based on current data, basic filtration should suffice for additional peace of mind.

Where does Wheaton's water come from?

Wheaton's water is sourced from Groundwater. The city has 1 water system serving approximately 1,465 residents.

Is Wheaton's groundwater at risk of contamination?

Wheaton 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 7 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 Wheaton's water compare to other cities?

Wheaton ranks #235 out of 466 cities in Minnesota (better than 50% of state cities) and #2800 out of 15744 cities nationally (82th percentile). The grade of A- reflects the combined assessment of violation history, lead and copper levels, PFAS contamination, and regulatory compliance.

Does Wheaton's small water system affect quality?

Wheaton's system serves approximately 1,465 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 7 violations on record.