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Stewart, MN Tap Water Quality 2026

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

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

Main Utility: Stewart PWSID: MN1430009 Updated: 2026 Q2
✅

No federal limits exceeded on record

Lead was not detected and no violations are open. PFAS has never been sampled at this system.

C

Stewart earns a C for water quality

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

Lead: not detected
PFAS never sampled at this system
8 violations since 2015, 6 health-based
No violations currently open
Stewart's lead level vs. all Minnesota community water systems
0 ppb5 ppb10 ppb15 ppb
Lead level: Not detected — 0% of the federal action level
✓ Lower lead than % of Minnesota utilities
Population Served
489
~269 connections
Water Source
Groundwater
Drawn from wells — SDWIS source code GW
Active Violations
0
8 since 2015, all resolved

Lead & Copper Testing

Lead (Pb)
90th percentile of tap samples collected across the distribution system
0% of EPA action level
Not detected
Action level: 15 ppb
Copper (Cu)
90th percentile of tap samples. SDWIS reports a copper figure only when a system exceeds the action level, so any value here is an exceedance.
121.5% of EPA action level
1,580 ppb
Action level: 1,300 ppb
Lead was not detected at the 90th percentile — the result fell below the laboratory detection limit. That is not the same as an absence of lead in every tap, and older homes with lead service lines can still show higher readings. Copper reached the action level here; a copper figure appears in SDWIS only when a system triggers it.

Contaminant Violations (2015–Present)

ContaminantTypeMeasuredLimitPeriodStatus
TTHM MCL EXCEEDANCE 0.0996 MG/L 0.080 mg/L 2026 Archived
TTHM MCL EXCEEDANCE 0.125 MG/L 0.080 mg/L 2025 Archived
TTHM MCL EXCEEDANCE 0.1238 MG/L 0.080 mg/L 2025 Archived
TTHM MCL EXCEEDANCE 0.1141 MG/L 0.080 mg/L 2025 Archived
TTHM MCL EXCEEDANCE 0.1123 MG/L 0.080 mg/L 2022 Archived
Total Haloacetic Acids (HAA5) MONITORING AND REPORTING — 0.060 mg/L 2021 Resolved
TTHM MONITORING AND REPORTING — 0.080 mg/L 2021 Resolved
Arsenic MCL EXCEEDANCE 0.0108 MG/L 0.010 mg/L 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

8 violations are on record since 2015, of which 6 were health-based. All have been resolved and none remain open.

About the Main Water System

Utility Stewart
PWSID MN1430009
Water source Groundwater — Drawn from wells — SDWIS source code GW
Population served 489
Service connections 269
Systems serving this area 1
Regulator State primacy agency
Data through 2026 Q2 — EPA SDWIS

Frequently Asked Questions

Is Stewart tap water safe to drink? ▼
No federal limit is exceeded on record. No violations are currently open.
Does Stewart 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 Stewart? ▼
Stewart (PWSID MN1430009). Groundwater. Drawn from wells — SDWIS source code GW
When was this system last inspected? ▼
It was last inspected on 2026-02-03. No significant deficiencies were recorded.

What Should Stewart 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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