Water Quality in Great Falls, MT (59485)
EPA violation data for public water systems serving ZIP code 59485.
No Health-Based Violations
None of the 9 water systems serving this ZIP have exceeded federal contaminant limits in the past 5 years. There are3 monitoring/reporting violations (missed testing deadlines), all resolved.
Better than 43% of US ZIP codes.
Based on EPA compliance data. Not a substitute for an official water quality report from your utility.
772
Population
9
Water Systems
3
Violations (5yr)
0
Health-Based
Location
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Water Systems Serving This Area (9)
Great Falls City Of
Beef N Bone Steakhouse
All resolvedFairhaven Colony
All resolvedFirst Peoples Buffalo Jump State Park
Equity Co-Op
Ulm School Dist 85
All resolvedUlm Bar
Pocklington Well
Butte View Trailer Court
Contaminants Found
Lead and copper testing requirement. Lead exposure can cause developmental harm in children.
Missed testing deadlines — not a detection of bacteria.
Lead & Copper Levels
Lead (Pb)
Approaching limitSampled: Jul 2025
How Does This Compare?
Great Falls (59485) has more violations than 43% of US ZIP codes. The national average is 18.87 violations per ZIP over 5 years. This ZIP has 3, most of which are monitoring/reporting issues.
Water Filter Recommendations
No contaminant issues detected. For general protection, a basic carbon filter removes common impurities like chlorine and sediment. Look for NSF/ANSI 42 certified products.