States › Montana › Treasure County

Treasure County, MT Water Quality

Water quality data for 1 public water systems serving Treasure County, Montana — based on EPA SDWIS enforcement records, lead testing results, and health-based violation history.

📅 2026 Report 🔄 Data updated 2026 Q2 📍 1 water systems · 1 cities
⚠️
Caution Advised — Some Systems Need Attention

Some systems have elevated lead levels or active violations. Check your specific city below.

C

Treasure County Earns a C

Treasure County: 1 community across 1 water system. 100.0% have no open violations.

  • Median lead where detected: none detected
  • 0 communities with a lead detection, 1 reporting none detected
  • 0 communities with PFAS above the federal limit
  • 0 with significant inspection deficiencies
  • 100.0% of communities have no open violations
—
Median Lead Level
County-wide, 90th percentile
1
Water Systems
Active CWS & NTNCWS
100%
Violation-Free
No active violations on record
How we grade counties: MyWaterIQ uses EPA SDWIS enforcement data — actual MCL violations and lead test results — not the aspirational MCLG targets used by some sites. A grade reflects real compliance history, not theoretical risk. Learn more →

Cities by Water Quality

⭐ Best Performing
  • Hysham
    Not detected
    Copper above the 1,300 ppb action level
    C
⚠ Needs Attention
  • Hysham
    Not detected
    Copper above the 1,300 ppb action level
    C

All Cities in Treasure County

Hysham Not detected C
Showing 1 cities
No active violations Active violations

About Treasure County Drinking Water

Treasure County is served by 1 water system covering 1 community. No community here has an open violation on record.

Lead was not detected in any community in Treasure County that reported a result.

No community here has PFAS above the federal limit on record. State inspectors recorded no significant deficiencies.

Frequently Asked Questions

Is Treasure County tap water safe to drink?▼
No community in Treasure County has an open violation on record. No community has PFAS above the federal limit on record.
What is the lead level in Treasure County?▼
No community reported a lead detection.
How many water systems serve Treasure County?▼
1 community water system serves 1 community here.
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