Water Quality in Great Falls, MT (59463)
EPA violation data for public water systems serving ZIP code 59463.
Past Health-Based Violations
1 health-based violation was found in the past 5 years, meaning contaminant levels exceeded federal safety limits. All have since been resolved. There are also 8 monitoring/reporting violations.
More violations than 65% of US ZIP codes.
Based on EPA compliance data. Not a substitute for an official water quality report from your utility.
142
Population
7
Water Systems
9
Violations (5yr)
1
Health-Based
Location
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Water Systems Serving This Area (7)
Great Falls City Of
Theiltges Saint Thomas Camp
All resolvedLazy Doe Inc
Paynes Spring
Rocking J Cabins And Campground
Canyon Cafe
Cougar Canyon Lodge
1 health-basedContaminants Found
Missed testing deadlines — not a detection of bacteria.
Lead & Copper Levels
Lead (Pb)
Approaching limitSampled: Jul 2025
How Does This Compare?
Great Falls (59463) has more violations than 65% of US ZIP codes. The national average is 18.87 violations per ZIP over 5 years. This ZIP has 9.
Recommended Water Filters
Based on health-based violations detected in your area, these filter types are commonly used to address similar contaminants. Consult your water utility's Consumer Confidence Report for the most current data.
Whole House Carbon Filter
A solid baseline for improving overall water quality. Reduces chlorine, sediment, and many common contaminants throughout your entire home.
Targets:Chlorine, Sediment, Taste & Odor
Look for:NSF/ANSI 42 certified
Always look for filters certified by NSF International for the specific contaminants you want to remove. This is general educational information, not an endorsement of any specific product.