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Moose Lake, MN Tap Water Quality 2026

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

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

Main Utility: Moose Lake PWSID: MN1090009 Updated: 2026 Q2
✅

No federal limits exceeded on record

Lead is 5.00 ppb, 33% of the action level and no violations are open. PFAS has never been sampled at this system.

B

Moose Lake earns a B for water quality

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

Lead: 5.00 ppb — 33% of the federal action level
PFAS never sampled at this system
13 violations since 2015, 0 health-based
No violations currently open
Moose Lake's lead level vs. all Minnesota community water systems
0 ppb5 ppb10 ppb15 ppb
Lead level: 5.00 ppb — 33% of the federal action level
✓ Lower lead than 16% of Minnesota utilities
Population Served
1873
~545 connections
Water Source
Groundwater
Drawn from wells — SDWIS source code GW
Active Violations
0
13 since 2015, all resolved

Lead & Copper Testing

Lead (Pb)
90th percentile of tap samples collected across the distribution system
33% of EPA action level
5.00 ppb
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.
105.4% of EPA action level
1,370 ppb
Action level: 1,300 ppb
The 90th-percentile lead result is 5.00 ppb, 33% 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. Copper reached the action level here; a copper figure appears in SDWIS only when a system triggers it.

Contaminant Violations (2015–Present)

ContaminantTypeMeasuredLimitPeriodStatus
Endrin MONITORING AND REPORTING — 0.002 mg/L 2022 Archived
BHC-GAMMA MONITORING AND REPORTING — 0.0002 mg/L 2022 Archived
Methoxychlor MONITORING AND REPORTING — 0.04 mg/L 2022 Archived
Di(2-ethylhexyl) adipate MONITORING AND REPORTING — 0.4 mg/L 2022 Archived
Simazine MONITORING AND REPORTING — 0.004 mg/L 2022 Archived
Di(2-ethylhexyl) phthalate MONITORING AND REPORTING — 0.006 mg/L 2022 Archived
Hexachlorocyclopentadiene MONITORING AND REPORTING — 0.05 mg/L 2022 Archived
Atrazine MONITORING AND REPORTING — 0.003 mg/L 2022 Archived
LASSO MONITORING AND REPORTING — — 2022 Archived
Heptachlor MONITORING AND REPORTING — 0.0004 mg/L 2022 Archived
Heptachlor epoxide MONITORING AND REPORTING — 0.0002 mg/L 2022 Archived
HEXACHLOROBENZENE MONITORING AND REPORTING — 0.001 mg/L 2022 Archived
Benzo(a)pyrene MONITORING AND REPORTING — 0.0002 mg/L 2022 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

13 violations are on record since 2015, of which 0 were health-based. All have been resolved and none remain open.

About the Main Water System

Utility Moose Lake
PWSID MN1090009
Water source Groundwater — Drawn from wells — SDWIS source code GW
Population served 1,873
Service connections 545
Systems serving this area 2
Regulator State primacy agency
Data through 2026 Q2 — EPA SDWIS

Frequently Asked Questions

Is Moose Lake tap water safe to drink? ▼
No federal limit is exceeded on record. No violations are currently open. Lead is 5.00 ppb, 33% of the action level.
Does Moose Lake 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 Moose Lake? ▼
Moose Lake (PWSID MN1090009), one of 2 systems serving this area. Groundwater. Drawn from wells — SDWIS source code GW
When was this system last inspected? ▼
It was last inspected on 2024-10-08. No significant deficiencies were recorded.

What Should Moose Lake 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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