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Warsaw, MN Tap Water Quality 2026

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

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

Main Utility: Rolling Green First Addition PWSID: MN1660022 Updated: 2026 Q2
✅

No federal limits exceeded on record

Lead is 1.00 ppb, 7% of the action level and no violations are open. PFAS has never been sampled at this system.

C

Warsaw earns a C for water quality

Graded on violations and lead, with state inspection findings. PFAS not tested.

Lead: 1.00 ppb — 7% of the federal action level
PFAS never sampled at this system
32 violations since 2015, 20 health-based
No violations currently open
Warsaw's lead level vs. all Minnesota community water systems
0 ppb5 ppb10 ppb15 ppb
Lead level: 1.00 ppb — 7% of the federal action level
✓ Lower lead than 100% of Minnesota utilities
Population Served
150
~44 connections
Water Source
Groundwater
Drawn from wells — SDWIS source code GW
Active Violations
0
32 since 2015, all resolved

Lead & Copper Testing

Lead (Pb)
90th percentile of tap samples collected across the distribution system
7% of EPA action level
1.00 ppb
Action level: 15 ppb
The 90th-percentile lead result is 1.00 ppb, 7% 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
Gross Alpha, Excl. Radon and U MCL EXCEEDANCE 31.9 PCI/L 15 pCi/L 2025 Archived
Combined Radium (-226 and -228) MCL EXCEEDANCE 7.2 PCI/L 5 pCi/L 2025 Archived
Lead and Copper Rule MONITORING AND REPORTING — TT 2024 Resolved
Revised Total Coliform Rule MONITORING FAILURE — — 2024 Resolved
Revised Total Coliform Rule MONITORING FAILURE — — 2024 Resolved
Revised Total Coliform Rule MONITORING FAILURE — — 2024 Resolved
Combined Radium (-226 and -228) MCL EXCEEDANCE 6.4 PCI/L 5 pCi/L 2024 Archived
Gross Alpha, Excl. Radon and U MCL EXCEEDANCE 31.7 PCI/L 15 pCi/L 2024 Archived
Lead and Copper Rule MONITORING AND REPORTING — TT 2023 Resolved
Revised Total Coliform Rule MONITORING FAILURE — — 2023 Resolved
Combined Radium (-226 and -228) MCL EXCEEDANCE 6.3 PCI/L 5 pCi/L 2023 Archived
Gross Alpha, Excl. Radon and U MCL EXCEEDANCE 15.8 PCI/L 15 pCi/L 2023 Archived
Nitrate MONITORING AND REPORTING — 10 mg/L 2023 Resolved
Lead and Copper Rule MONITORING AND REPORTING — TT 2022 Resolved
Gross Alpha, Excl. Radon and U MCL EXCEEDANCE 17.4 PCI/L 15 pCi/L 2022 Archived
Revised Total Coliform Rule MONITORING FAILURE — — 2021 Resolved
Gross Alpha, Excl. Radon and U MCL EXCEEDANCE 22.2 PCI/L 15 pCi/L 2021 Archived
Revised Total Coliform Rule MONITORING FAILURE — — 2021 Resolved
Combined Radium (-226 and -228) MCL EXCEEDANCE 5.7 PCI/L 5 pCi/L 2021 Archived
Gross Alpha, Excl. Radon and U MCL EXCEEDANCE 16.2 PCI/L 15 pCi/L 2021 Archived
Nitrate MONITORING AND REPORTING — 10 mg/L 2021 Resolved
Revised Total Coliform Rule MONITORING FAILURE — — 2020 Resolved
Combined Radium (-226 and -228) MCL EXCEEDANCE 7.3 PCI/L 5 pCi/L 2020 Archived
Gross Alpha, Excl. Radon and U MCL EXCEEDANCE 14.9 PCI/L 15 pCi/L 2020 Archived
Combined Radium (-226 and -228) MCL EXCEEDANCE 7.5 PCI/L 5 pCi/L 2019 Archived
Gross Alpha, Excl. Radon and U MCL EXCEEDANCE 19.8 PCI/L 15 pCi/L 2019 Archived
Combined Radium (-226 and -228) MCL EXCEEDANCE 7 PCI/L 5 pCi/L 2018 Archived
Gross Alpha, Excl. Radon and U MCL EXCEEDANCE 22.9 PCI/L 15 pCi/L 2018 Archived
Combined Radium (-226 and -228) MCL EXCEEDANCE 5.8 PCI/L 5 pCi/L 2017 Archived
Gross Alpha, Excl. Radon and U MCL EXCEEDANCE 16.8 PCI/L 15 pCi/L 2017 Archived
Combined Radium (-226 and -228) MCL EXCEEDANCE 7 PCI/L 5 pCi/L 2016 Archived
Gross Alpha, Excl. Radon and U MCL EXCEEDANCE 19.9 PCI/L 15 pCi/L 2016 Archived
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

32 violations are on record since 2015, of which 20 were health-based. All have been resolved and none remain open.

About the Main Water System

Utility Rolling Green First Addition
PWSID MN1660022
Water source Groundwater — Drawn from wells — SDWIS source code GW
Population served 150
Service connections 44
Systems serving this area 1
Regulator State primacy agency
Data through 2026 Q2 — EPA SDWIS

Frequently Asked Questions

Is Warsaw tap water safe to drink? ▼
No federal limit is exceeded on record. No violations are currently open. Lead is 1.00 ppb, 7% of the action level.
Does Warsaw water have PFAS? ▼
This system has never been sampled for PFAS. EPA's national monitoring covered systems serving 3,300 people or more, so no results exist — which is not evidence that none is present.
Who supplies water to Warsaw? ▼
Rolling Green First Addition (PWSID MN1660022). Groundwater. Drawn from wells — SDWIS source code GW
When was this system last inspected? ▼
It was last inspected on 2024-07-25. Inspectors recorded 1 significant deficiency.

What Should Warsaw Residents Do?

1
Read your annual water report
Your supplier publishes a Consumer Confidence Report each July covering the prior year.
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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