Water Quality Report

Rochester, MN (55901): 4 Violations Recorded for Mapped Water Systems

EPA data combined for 3 water systems mapped to this ZIP (largest mapped system: Rochester)

PFAS Detected High County Radon Potential NFIP Claim History

EPA records for the water systems mapped to 55901 in Rochester, MN contain 4 recorded violations for inclusive record years 2021 through 2026, all mapped systems combined; 0 are marked health-based.

Data source: U.S. Environmental Protection Agency (EPA) SDWIS

Based on EPA Drinking Water FEMA Flood Data U.S. Census CDC Energy Information Admin. USGS Water Data & 9 more federal sources
Latest air quality, EPA records and weather alerts Current data temporarily unavailable
Current EPA violation data unavailable
Water records and current conditions
Current EPA violation data unavailable
Safety Score N/A
Water Quality Concerns 4 non-health-based violation records in EPA data
Lead Risk Moderate 0.007 mg/L, 90th percentile, sample period ending 2025-12-31
NFIP Claim History Claim records 156 claims
Data confidence: High (direct measurement) Medium (sampled / sub-geography) Low (modeled / inferred) Methodology →

At a Glance

  • Water EPA records for water systems mapped to this ZIP show 4 violations (non-health) (since 2021).
  • Lead The reported 90th-percentile lead result of 0.007 mg/L is below the EPA action level, but EPA's health goal for lead is zero; filtration is advisable.
  • PFAS PFAS detected in UCMR5 sampling; see the PFAS section for each compound, compared with the federal PFAS MCL where one exists.
  • Radon EPA Zone 1 - highest county-level potential. This is not a home measurement; test before any threshold comparison.
  • Flood 156 cumulative NFIP claim records. This historical count is not a current property-risk verdict.
Contaminant Summary
Violations on record (not health-based)
4 violations PFAS detected
Report data assembled: Jul 27, 2026 EPA water-system identity: source date or period is not present in ZipCheckup's accepted source record EPA violation history: more than two update cycles old Lead, copper and UCMR measurements: source date or period is not present in ZipCheckup's accepted source record Consumer Confidence Report: source date or period is not present in ZipCheckup's accepted source record
3
Water Systems
123,624
People Served
0
Health Violations (since 2021)
Groundwater
Water Source
0.007 mg/L
Reported Lead Result3.0× the national median for this measure
Zone 1
County Radon Potential · High
$290K
Median Home Value31% above state median ($221K)

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Score Breakdown

Overall Home Safety Score: Score unavailable

Required evidence is missing. Missing values remain unknown and are not imputed or renormalized.

Canonical components

EPA water compliance
86/100
Observed
PFAS MCL screen
Unknown
Evidence missing
EPA radon zone
0/100
Observed
Annual EPA AirData AQI
100/100
Observed

Required domains

Drinking water
Unknown
Indoor environment
0/100
Outdoor environment
100/100

Coverage: 3 of 4 components and 2 of 3 domains observed.

Model 4.0.0; series home-safety-v4-cross-vertical.

Safety & Health (8) HIGH

Your Water System

ZIP code 55901 in Rochester, Minnesota is mapped to the water system Rochester (EPA ID: MN1550010). This system provides water to approximately 123,624 people from groundwater sources.

There are 3 community water systems serving this area.

Lead & Copper in Your Water

The EPA requires water systems to monitor lead and copper levels under the Lead and Copper Rule.

Metal Measured Level EPA Action Level Status Sample Date or Period
Copper Action-level exceedance on record 1.3 mg/L Exceeds action level Not present in ZipCheckup accepted source data
How to read the copper row. EPA's reporting schema defines the copper CU90 code as an action-level exceedance (a system's 90th-percentile copper above the 1.3 mg/L action level), so this row reflects an exceedance on record, not a routine measurement. No copper concentration is shown because no verified unit is available for this value. A system with no copper record has not been shown to be clean: the absence of a recorded exceedance is not a measurement.

Water Systems Serving This Area

System Name EPA ID Population Source
Rochester MN1550010 123,624 Groundwater
Briarwood Subdivision MN1550035 90 Groundwater
Oronoco MN1550036 2,040 Groundwater

Other Water Quality Reports in Minnesota

Nearby Water Quality Reports

Data Sources

This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View available EPA compliance records for Rochester (MN1550010) on EPA.gov.

4 of the top compounds applied across the surrounding county in USGS pesticide-use estimates appear on EPA drinking-water monitoring lists. See the agricultural pesticide-use section.

📊 EPA Safe Drinking Water · View source →

PFAS Contamination Detected

PFAS ("forever chemicals") have been reported in samples from water systems associated with ZIP code 55901.

Detected compounds: PFHxS.

Highest measured level: 0.0039 µg/L

Reverse osmosis (RO) and activated carbon block filters can reduce PFAS at the tap. Certifications list the compounds covered: an NSF/ANSI 53 or 58 claim for PFOA/PFOS does not cover every PFAS, so check that the product lists the compounds detected here.

📊 EPA UCMR5 · View source →
Environmental Hazards (11) HIGH
Home & Infrastructure (7) OK
Cost & Community (9) HIGH

CPSC product recall notices

These national notices are not matched to this ZIP code or water system.

View all recalls →

📊 CPSC · View source →

Protect Your Home in Rochester

Based on local data for ZIP 55901, these services may benefit homeowners in your area.

Based on local data for your area. Use the tools below to explore your options.

Home & Flood Insurance

The ZIP code for this report in Rochester has 156 FEMA flood claims on record. Standard homeowner policies don't cover flood damage - make sure you're protected.

Typical cost: Flood insurance: premiums vary by property and flood zone; request a quote

Check Your Flood Zone (Free)

FEMA flood map lookup - see if your property is in a flood zone

Free tip: Check your FEMA flood zone at msc.fema.gov (free lookup)

Gutter Installation & Repair

The median home in 55901 was built around 1982. Aging gutters can cause foundation damage, basement flooding, and mold - a professional assessment can prevent costly repairs.

Typical cost: Gutter installation: typically $1,000–$2,500 for a standard home

Estimate Your Home Maintenance Costs

Window Replacement

The median build year of homes in Rochester is 1982; check the age and condition of your own windows. ENERGY STAR windows can save $101–$583/year on energy bills.

Typical cost: Window replacement: typically $300–$800 per window installed

Estimate Your Home Maintenance Costs

Service recommendations are based on public data for this ZIP code (FEMA, Census ACS, NWS). Actual needs vary by property. By calling, your information will be shared with an independent service provider. ZipCheckup may receive compensation. Cost estimates are approximate and vary by property, condition, and contractor.

Frequently Asked Questions

Is the tap water in 55901 safe to drink?

EPA SDWIS records 4 violations since 2021 across the water systems mapped to ZIP 55901 (primary system: Rochester), including 0 health-based. The violation table above shows which system each record belongs to. ZipCheckup last updated this page in July 2026. The federal source release date is unavailable, so that month is not presented as source currency.

Where does 55901's water come from?

The recorded water source for Rochester, a system mapped to ZIP code 55901, is Groundwater. This system serves approximately 123,624 people.

How can I get my water tested in Rochester?

If Rochester supplies your home, contact it for its Consumer Confidence Report; otherwise contact the water utility that serves your address, or hire a certified lab for independent home water testing. The EPA recommends annual testing if you use a private well.

Is lead a concern in 55901 tap water?

The Lead and Copper Rule record selected for 55901 reports a 90th-percentile lead result of 0.007 mg/L for a water system mapped to this ZIP (record date 2025-12-31). The EPA action level is 0.015 mg/L. This result is below the EPA action level; it does not show the lead level in each home.

What is the radon risk for 55901?

55901 is mapped to a county in EPA Radon Zone 1 (high county-level radon potential; EPA recommends testing every home), located in Olmsted County. EPA radon zones range from Zone 1 (highest county-level potential) to Zone 3 (lowest). Testing your home is recommended regardless of zone.

Are there PFAS (forever chemicals) in 55901's water?

Yes, PFAS have been detected in samples from water systems mapped to 55901. Reverse osmosis and activated carbon filters certified to NSF/ANSI 53 or 58 specifically for PFOA/PFOS reduction can reduce PFAS.

What does the NFIP claim history show for ZIP 55901?

FEMA records contain 156 flood insurance claims filed in ZIP code 55901; the recorded rated-zone value (the most frequent one if there are several claims) is A19, which is claims evidence and may differ from the current FEMA map zone for a property. This is a substantial claim history, but claim count is not a count of distinct events or properties. Review FEMA's map for the specific property.

How to cite this page

APA ZipCheckup. (2026). Rochester, MN (55901): 4 Violations Recorded for Mapped Water Systems. https://zipcheckup.com/report/55901/
BibTeX
@misc{zipcheckup-report-55901,
  author = {{ZipCheckup}},
  title  = {{Rochester, MN (55901): 4 Violations Recorded for Mapped Water Systems}},
  year   = {2026},
  url    = {https://zipcheckup.com/report/55901/}
}

Page version: October 2026.

Nearby ZIP Code Reports

Water quality comparison for ZIP codes near 55901

ZIP Code City, State Distance Grade Violations
55905 Rochester, MN 2.2 mi N/A 0
55902 Rochester, MN 3.2 mi N/A 0
55903 Rochester, MN 4.5 mi N/A 0
55904 Rochester, MN 5.3 mi N/A 0
55906 Rochester, MN 5.8 mi C 2
55960 Oronoco, MN 6.9 mi N/A 2
55920 Byron, MN 7.1 mi C 0
55934 Eyota, MN 11.5 mi N/A 0
55944 Kasson, MN 12.9 mi N/A 0
55932 Elgin, MN 13.1 mi N/A 2

Contaminants Detected in 55901

Learn more about the contaminants found in your water supply:

Overall safety breakdown

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Coverage: 16/17 risk factors Data sources →
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