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St. Paul, MN Tap Water Quality 2026

Water quality report for St. Paul, MN — PFAS, lead and copper results, violation history and state inspection findings from EPA SDWIS.

A look at St. Paul's drinking water using EPA enforcement records: violations, lead and copper results, PFAS sampling and state inspection findings.

Main Utility: Saint Paul Regional Water Services PWSID: MN1620026 Updated: 2026 Q2
✅

No federal limits exceeded on record

Lead is 8.00 ppb, 53% of the action level and no violations are open. No PFAS was detected.

B

St. Paul earns a B for water quality

Graded on violations, lead, and PFAS, with state inspection findings.

Lead: 8.00 ppb — 53% of the federal action level
PFAS tested, none detected
11 violations since 2015, 1 health-based
No violations currently open
St. Paul's lead level vs. all Minnesota community water systems
0 ppb5 ppb10 ppb15 ppb
Lead level: 8.00 ppb — 53% of the federal action level
✓ Lower lead than 6% of Minnesota utilities
Population Served
308789
~94496 connections
Water Source
Surface water
Drawn from surface water — SDWIS source code SW
Active Violations
0
11 since 2015, all resolved

Lead & Copper Testing

Lead (Pb)
90th percentile of tap samples collected across the distribution system
53% of EPA action level
8.00 ppb
Action level: 15 ppb
The 90th-percentile lead result is 8.00 ppb, 53% of the 15 ppb federal action level. The action level is a treatment trigger, not a legal maximum, and it is measured across sampled taps rather than at any single home.

Contaminant Violations (2015–Present)

ContaminantTypeMeasuredLimitPeriodStatus
Interim Enhanced Surface Water Treatment Rule MONITORING AND REPORTING — — 2023 Archived
Lead and Copper Rule OTHER — TT 2023 Resolved
Surface Water Treatment Rule MONITORING AND REPORTING — — 2022 Resolved
Lead and Copper Rule TREATMENT TECHNIQUE — TT 2022 Resolved
Lead and Copper Rule MONITORING AND REPORTING — TT 2022 Resolved
Lead and Copper Rule MONITORING AND REPORTING — TT 2021 Resolved
Lead and Copper Rule MONITORING AND REPORTING — TT 2021 Resolved
Lead and Copper Rule MONITORING AND REPORTING — TT 2021 Resolved
Lead and Copper Rule MONITORING AND REPORTING — TT 2020 Resolved
Lead and Copper Rule MONITORING AND REPORTING — TT 2020 Resolved
Lead and Copper Rule MONITORING AND REPORTING — TT 2020 Resolved
Understanding violation types MCL violations mean a contaminant exceeded the federal maximum limit — the most serious type.
TT (Treatment Technique) violations mean required treatment procedures weren't followed, but don't necessarily mean contamination occurred.

Violation History

11 violations are on record since 2015, of which 1 were health-based. All have been resolved and none remain open.

About the Main Water System

Utility Saint Paul Regional Water Services
PWSID MN1620026
Water source Surface water — Drawn from surface water — SDWIS source code SW
Population served 308,789
Service connections 94,496
Systems serving this area 3
Regulator State primacy agency
Data through 2026 Q2 — EPA SDWIS

Frequently Asked Questions

Is St. Paul tap water safe to drink? ▼
No federal limit is exceeded on record. No violations are currently open. Lead is 8.00 ppb, 53% of the action level.
Does St. Paul water have PFAS? ▼
It was tested for the six regulated PFAS compounds and none were detected.
Who supplies water to St. Paul? ▼
Saint Paul Regional Water Services (PWSID MN1620026), one of 3 systems serving this area. Surface water. Drawn from surface water — SDWIS source code SW
When was this system last inspected? ▼
It was last inspected on 2025-09-23. No significant deficiencies were recorded.

What Should St. Paul Residents Do?

1
Consider a filter certified for lead
Look for NSF/ANSI 53 certification for lead reduction.
2
Check for a lead service line
Lead reaches tap water mainly through service lines and household plumbing. Suppliers now publish an inventory identifying lead lines.
3
Flush before drinking
If water has sat in pipes more than six hours, run the cold tap for two minutes before drinking or cooking.

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