Is Bayport, 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 ↓
93.1/100
waterverge.com Bayport, MN — Water Quality Report
Bayport's drinking water received a grade of A (93.1 out of 100), indicating excellent water quality. The city's 2 water systems serve approximately 3,481 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 13 violations on record, including 1 health-based violation. 1 remains unresolved.
What to know about Bayport's water
Bayport ranks #105 out of 466 cities in Minnesota for water quality, placing it above average in the state.
Bayport 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.
Water quality score
See methodology →Is Bayport, MN water safe to drink?
Bayport's tap water meets most EPA standards but has areas that warrant attention. With a grade of A (93.1/100), some contaminant levels or compliance issues suggest that residents may benefit from additional filtration. The city's 2 water systems serve approximately 3,481 residents using groundwater (wells).
Recent water quality updates for Bayport
A timeline of significant water quality events, violations, and data updates.
Latest EPA compliance and testing data incorporated into Bayport's water quality assessment. Grade: A (93.1/100).
Contaminants: Total Haloacetic Acids (HAA5), TTHM.
Federal disaster declaration (FEMA DR-4442). Flood event — may have impacted local water infrastructure.
Contaminants: Revised Total Coliform Rule.
Contaminants: Chlorine.
Federal disaster declaration (FEMA DR-1982). Flood event — may have impacted local water infrastructure.
Key contaminant findings
Based on the most recent EPA sampling data for Bayport's water supply.
Well within EPA limits.
Violation history
Bayport's water system has 13 total violations on record, including 1 health-based violation. 1 remain unresolved. 2 violations were issued in the last 5 years.
Flood & environmental risk
Washington County has experienced 9 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 Apple River Above 05341499, St. Croix River.
Where does Bayport's water come from?
Bayport's drinking water comes from groundwater (wells), supplied by 2 water systems serving approximately 3,481 people. Groundwater is generally less susceptible to surface contamination but can contain naturally occurring contaminants like arsenic, radon, and nitrate. Nearby water bodies include Apple River Above 05341499 (river), St. Croix River (river).
What Bayport 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.
Bayport'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 Bayport
Industrial polluters nearby
Reported releases to surface water by facilities near Bayport, ranked by pounds discharged annually.
Total reported releases to surface water: 173 lbs
| Facility | Top chemical | To surface water (lbs/yr) | Distance |
|---|---|---|---|
XCEL ENERGY A. S. KING GENERATING PLANT BAYPORT, MN55003 | Barium And Barium Compounds | 173 | 1.0 mi |
ANDERSEN CORP BAYPORT, MN55003 | — | — | 0.5 mi |
AYRSHIRE ELECTRONICS MN SAINT PAUL, MN55128 | — | — | 9.2 mi |
HEARING COMPONENTS INC. SAINT PAUL, MN55128 | — | — | 9.7 mi |
NOR-LAKE INC HUDSON, WI54016 | — | — | 5.1 mi |
Source: EPA Toxic Release Inventory (TRI) 2023
Superfund sites within 10 miles of Bayport
Superfund sites nearby
Federally tracked hazardous-waste sites on the EPA National Priorities List. Proximity does not necessarily indicate tap-water contamination — the connection depends on hydrology and treatment.
- BAYTOWN TOWNSHIP GROUND WATER PLUME2.8 mi
- OAKDALE DUMP9.2 mi
Source: EPA Superfund National Priorities List
Flood & disaster history
Washington County has experienced 9 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. | 0.0 | 15 | ppb | Inorganic | Safe |
Lead level trend (90th percentile)
See how Bayport compares by contaminant
Explore where Bayport ranks among all Minnesota cities for specific contaminants.
Water source & infrastructure
Where Bayport's water comes from
Bayport'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 3,481 people through 2 water systems.
Water bodies near Bayport
Bayport is located near 2 notable water bodies. These water bodies contribute to the regional watershed and may indirectly affect groundwater quality.
Water systems serving Bayport
| System Name | PWSID | Population | Source |
|---|---|---|---|
| Bayport | MN1820001 | 2,700 | GW |
| MN Correctional Facility - Stillwater | MN1820002 | 781 | GW |
How Bayport compares
Full Minnesota rankings →Bayport's score of 93.1/100 is above the average of 82/100 among major Minnesota cities. It outscores 9 of 10 nearby cities.
Nearby cities
View Minnesota rankings →About Bayport, MN
Wikipedia →Bayport is a city in Washington County, Minnesota, United States. The population was 4,024 at the 2020 census.
Learn more about your water
Guides and resources related to Bayport's water quality findings.
Explore water quality across Washington
Frequently asked questions
Is Bayport, MN tap water safe to drink?
Bayport's water quality earned a grade of A (93.1/100). The water generally meets EPA standards and is considered safe for consumption. The city ranks #105 out of 466 cities tested in Minnesota.
What contaminants are in Bayport's water?
Lead was measured at 0.0 ppb (90th percentile). 13 violations are on record.
How is Bayport'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 Bayport?
Based on current data, basic filtration should suffice for additional peace of mind.
Where does Bayport's water come from?
Bayport's water is sourced from Groundwater. The city has 2 water systems serving approximately 3,481 residents.
What health violations has Bayport's water system had?
Bayport has 1 health-based violation on record. The most recent violation was recorded in July 2021. Health-based violations mean the water exceeded EPA maximum contaminant levels (MCLs) for a regulated substance. 1 violation remains unresolved.
Is Bayport's groundwater at risk of contamination?
Bayport 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 13 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 Bayport's water compare to other cities?
Bayport ranks #105 out of 466 cities in Minnesota (better than 77% of state cities) and #961 out of 15744 cities nationally (94th percentile). The grade of A reflects the combined assessment of violation history, lead and copper levels, PFAS contamination, and regulatory compliance.