States ›Montana ›Jefferson County ›Whitehall

Whitehall, MT Tap Water Quality 2026

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

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

Main Utility: Whitehall Town Of PWSID: MT0000359 Updated: 2026 Q2
✅

No federal limits exceeded on record

Lead is 2.00 ppb, 13% of the action level and no violations are open. PFAS has never been sampled at this system.

B

Whitehall earns a B for water quality

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

Lead: 2.00 ppb — 13% of the federal action level
PFAS never sampled at this system
68 violations since 2015, 61 health-based
No violations currently open
Whitehall's lead level vs. all Montana community water systems
0 ppb5 ppb10 ppb15 ppb
Lead level: 2.00 ppb — 13% of the federal action level
✓ Lower lead than 67% of Montana utilities
Population Served
1006
~558 connections
Water Source
Groundwater
Drawn from wells — SDWIS source code GW
Active Violations
0
68 since 2015, all resolved

Lead & Copper Testing

Lead (Pb)
90th percentile of tap samples collected across the distribution system
13% of EPA action level
2.00 ppb
Action level: 15 ppb
The 90th-percentile lead result is 2.00 ppb, 13% 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
Combined Uranium MCL EXCEEDANCE 0.0423 MG/L 30 ug/L 2026 Archived
Combined Uranium MCL EXCEEDANCE 0.0449 MG/L 30 ug/L 2025 Archived
Combined Uranium MCL EXCEEDANCE 0.0448 MG/L 30 ug/L 2025 Archived
Gross Alpha, Excl. Radon and U MCL EXCEEDANCE 18 PCI/L 15 pCi/L 2025 Resolved
Combined Uranium MCL EXCEEDANCE 42 UG/L 30 ug/L 2025 Archived
Combined Uranium MCL EXCEEDANCE 44 UG/L 30 ug/L 2025 Archived
E. COLI MONITORING AND REPORTING — 0 2024 Resolved
E. COLI MONITORING AND REPORTING — 0 2024 Resolved
Combined Uranium MCL EXCEEDANCE 0.042 MG/L 30 ug/L 2024 Archived
Combined Uranium MCL EXCEEDANCE 0.0423 MG/L 30 ug/L 2024 Archived
Combined Uranium MCL EXCEEDANCE 0.0392 MG/L 30 ug/L 2024 Archived
Combined Uranium MCL EXCEEDANCE 0.0446 MG/L 30 ug/L 2024 Archived
Combined Uranium MCL EXCEEDANCE 0.04 MG/L 30 ug/L 2023 Archived
Revised Total Coliform Rule MONITORING FAILURE — — 2023 Resolved
Gross Alpha, Excl. Radon and U MONITORING AND REPORTING — 15 pCi/L 2023 Resolved
Combined Uranium MCL EXCEEDANCE 40.4 UG/L 30 ug/L 2023 Archived
Combined Uranium MCL EXCEEDANCE 0.042 MG/L 30 ug/L 2023 Resolved
Combined Uranium MCL EXCEEDANCE 0.038 UG/L 30 ug/L 2022 Archived
Combined Uranium MCL EXCEEDANCE 35 UG/L 30 ug/L 2022 Archived
Combined Uranium MCL EXCEEDANCE 38 UG/L 30 ug/L 2022 Archived
Combined Uranium MCL EXCEEDANCE 36 UG/L 30 ug/L 2022 Archived
Combined Uranium MCL EXCEEDANCE 40 UG/L 30 ug/L 2021 Archived
Combined Uranium MCL EXCEEDANCE 0.039 MG/L 30 ug/L 2021 Archived
Combined Uranium MCL EXCEEDANCE 0.039 MG/L 30 ug/L 2021 Archived
Combined Uranium MCL EXCEEDANCE 41 UG/L 30 ug/L 2021 Archived
Combined Uranium MCL EXCEEDANCE 32 UG/L 30 ug/L 2021 Archived
Combined Uranium MCL EXCEEDANCE 34 UG/L 30 ug/L 2021 Archived
Combined Uranium MCL EXCEEDANCE 39 UG/L 30 ug/L 2021 Archived
Combined Uranium MCL EXCEEDANCE 32 UG/L 30 ug/L 2020 Archived
Combined Uranium MCL EXCEEDANCE 37 UG/L 30 ug/L 2020 Archived
Combined Uranium MCL EXCEEDANCE 37 UG/L 30 ug/L 2020 Archived
Combined Uranium MCL EXCEEDANCE 34 UG/L 30 ug/L 2020 Archived
Gross Alpha, Excl. Radon and U MCL EXCEEDANCE 21 PCI/L 15 pCi/L 2020 Resolved
Combined Uranium MCL EXCEEDANCE 33 UG/L 30 ug/L 2020 Archived
Combined Uranium MCL EXCEEDANCE 41 UG/L 30 ug/L 2020 Archived
Combined Uranium MCL EXCEEDANCE 0.033 MG/L 30 ug/L 2020 Archived
Combined Uranium MCL EXCEEDANCE 0.04 MG/L 30 ug/L 2020 Archived
Asbestos MONITORING AND REPORTING — 7 MFL 2020–2022 Resolved
Combined Uranium MCL EXCEEDANCE 34 UG/L 30 ug/L 2019 Archived
Combined Uranium MCL EXCEEDANCE 37 UG/L 30 ug/L 2019 Archived
Combined Uranium MCL EXCEEDANCE 0.037 MG/L 30 ug/L 2019 Archived
Combined Uranium MCL EXCEEDANCE 0.039 MG/L 30 ug/L 2019 Archived
Combined Uranium MCL EXCEEDANCE 0.031 MG/L 30 ug/L 2019 Archived
Combined Uranium MCL EXCEEDANCE 0.042 MG/L 30 ug/L 2019 Archived
Combined Uranium MCL EXCEEDANCE 31 UG/L 30 ug/L 2019 Archived
Combined Uranium MCL EXCEEDANCE 40 UG/L 30 ug/L 2019 Archived
Combined Uranium MCL EXCEEDANCE 0.04 MG/L 30 ug/L 2018–2019 Archived
Combined Uranium MCL EXCEEDANCE 40 MG/L 30 ug/L 2018 Archived
Combined Uranium MCL EXCEEDANCE 0.043 UG/L 30 ug/L 2018 Archived
Combined Uranium MCL EXCEEDANCE 0.043 MG/L 30 ug/L 2018 Archived
Combined Uranium MCL EXCEEDANCE 0.043 MG/L 30 ug/L 2017 Archived
Combined Uranium MCL EXCEEDANCE 41 UG/L 30 ug/L 2017 Archived
Combined Uranium MCL EXCEEDANCE 33 UG/L 30 ug/L 2017 Resolved
Combined Uranium MCL EXCEEDANCE 40 UG/L 30 ug/L 2017 Archived
Combined Uranium MCL EXCEEDANCE 40 UG/L 30 ug/L 2016 Archived
Combined Uranium MCL EXCEEDANCE 38 UG/L 30 ug/L 2016 Resolved
Combined Uranium MCL EXCEEDANCE 0.041 MG/L 30 ug/L 2016 Archived
Combined Uranium MCL EXCEEDANCE 0.033 MG/L 30 ug/L 2016 Resolved
Combined Uranium MCL EXCEEDANCE 46 UG/L 30 ug/L 2016 Resolved
Combined Uranium MCL EXCEEDANCE 31 UG/L 30 ug/L 2016 Archived
Combined Uranium MCL EXCEEDANCE 31 UG/L 30 ug/L 2016 Resolved
Combined Uranium MCL EXCEEDANCE 40 UG/L 30 ug/L 2016 Archived
E. COLI MONITORING AND REPORTING — 0 2015 Resolved
Combined Uranium MCL EXCEEDANCE 38.3 UG/L 30 ug/L 2015 Archived
Combined Uranium MCL EXCEEDANCE 40.5 UG/L 30 ug/L 2015 Resolved
Consumer Confidence Rule OTHER — — 2015 Resolved
Combined Uranium MCL EXCEEDANCE 35.7 UG/L 30 ug/L 2015 Resolved
Combined Uranium MCL EXCEEDANCE 44 UG/L 30 ug/L 2015 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

68 violations are on record since 2015, of which 61 were health-based. All have been resolved and none remain open.

About the Main Water System

Utility Whitehall Town Of
PWSID MT0000359
Water source Groundwater — Drawn from wells — SDWIS source code GW
Population served 1,006
Service connections 558
Systems serving this area 1
Regulator State primacy agency
Data through 2026 Q2 — EPA SDWIS

Frequently Asked Questions

Is Whitehall tap water safe to drink? ▼
No federal limit is exceeded on record. No violations are currently open. Lead is 2.00 ppb, 13% of the action level.
Does Whitehall 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 Whitehall? ▼
Whitehall Town Of (PWSID MT0000359). Groundwater. Drawn from wells — SDWIS source code GW
When was this system last inspected? ▼
It was last inspected on 2024-11-27. No significant deficiencies were recorded.

What Should Whitehall 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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