GREAT FALLS CITY OF
Great Falls, MT · 60,000 served
GREAT FALLS CITY OF serves 60,000 people in Great Falls, MT. It has 0 health-based violations in the last 5 years. TapGraded gives this system a B.
Score breakdown
Health-based violations (5y)
0
Monitoring violations (5y)
0
Currently unaddressed
0
Overall score
85/100
Violation history (last 5 years)
No violations on record.
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Lead (Lead and Copper Rule)
EPA's current lead action level is 15 ppb (dropping to 10 ppb in 2027 under the Lead and Copper Rule Improvements).
PFAS (UCMR5 occurrence data)
System details
- System type
- Community water system
- Water source
- Surface water
- Ownership
- Local government
- Service connections
- 22,477
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Is Great Falls, MT tap water safe to drink?
GREAT FALLS CITY OF has 0 health-based violations in the last 5 years. TapGraded gives this system a B.
Does GREAT FALLS CITY OF have lead in its water?
The most recent 90th-percentile lead sample is 12 ppb, versus the EPA action level of 15 ppb.
Has PFAS been detected in GREAT FALLS CITY OF's water?
This system was tested under UCMR5 and no PFAS was detected above the reporting limit in the analytes we track.
Source: EPA SDWIS/ECHO · Data as of 2026Q2