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Geyser, MT Tap Water Quality 2026

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

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

Main Utility: Geyser Judith Basin Cty Water Sewer Dist PWSID: MT0000226 Updated: 2026 Q2
✅

No federal limits exceeded on record

Lead is 8.00 ppb, 53% of the action level and no violations are open. PFAS has never been sampled at this system.

B

Geyser earns a B for water quality

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

Lead: 8.00 ppb — 53% of the federal action level
PFAS never sampled at this system
3 violations since 2015, 0 health-based
No violations currently open
Geyser's lead level vs. all Montana community water systems
0 ppb5 ppb10 ppb15 ppb
Lead level: 8.00 ppb — 53% of the federal action level
✓ Lower lead than 10% of Montana utilities
Population Served
38
~55 connections
Water Source
Groundwater
Drawn from wells — SDWIS source code GW
Active Violations
0
3 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
Consumer Confidence Rule OTHER — — 2018 Resolved
Revised Total Coliform Rule MONITORING FAILURE — — 2016 Resolved
Lead and Copper Rule MONITORING AND REPORTING — TT 2015 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

3 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 Geyser Judith Basin Cty Water Sewer Dist
PWSID MT0000226
Water source Groundwater — Drawn from wells — SDWIS source code GW
Population served 38
Service connections 55
Systems serving this area 1
Regulator State primacy agency
Data through 2026 Q2 — EPA SDWIS

Frequently Asked Questions

Is Geyser 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 Geyser 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 Geyser? ▼
Geyser Judith Basin Cty Water Sewer Dist (PWSID MT0000226). Groundwater. Drawn from wells — SDWIS source code GW
When was this system last inspected? ▼
It was last inspected on 2025-10-23. No significant deficiencies were recorded.

What Should Geyser 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.

Nearby Cities in Montana

Stanford, Mt Tap Water Quality 2026 Judith Basin Hobson, Mt Tap Water Quality 2026 Judith Basin