Water Quality in Great Falls, MT (59401)
EPA violation data for public water systems serving ZIP code 59401.
No Health-Based Violations
None of the 15 water systems serving this ZIP have any violations in the past 5 years.
Based on EPA compliance data. Not a substitute for an official water quality report from your utility.
13,255
Population
15
Water Systems
0
Violations (5yr)
0
Health-Based
Location
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Water Systems Serving This Area (15)
Great Falls City Of
Surface water 60,000 people served
0 violations
Lead tested: 8 ppb (limit: 15 ppb) ✓
Red Wheel Trailer Court
Groundwater 200 people served
0 violations
Airport Exxon
Groundwater 200 people served
0 violations
Fischer'S Trailer Court
Groundwater 175 people served
0 violations
Della'S Pizzeria
Groundwater 100 people served
0 violations
Camp Scoutana Girl Scout Camp
Groundwater 100 people served
0 violations
Sun Praire Water Assn
Groundwater 100 people served
0 violations
Cascade County Filling Stations
Purchased surface water 94 people served
0 violations
Giant Springs Snack Bar
Groundwater 50 people served
0 violations
Missouri River Restaurant
Purchased surface water 50 people served
0 violations
Donovan Park Hall
Groundwater 50 people served
0 violations
Twin Silos Ranchettes
Groundwater 38 people served
0 violations
Radas River Trailer Court
Groundwater 25 people served
0 violations
Real Food Store
Purchased surface water 25 people served
0 violations
Modern Soft Water Co
Purchased surface water 17 people served
0 violations
Lead & Copper Levels
Lead (Pb)
Approaching limit8 ppb measured
Action level: 15 ppb
Sampled: Jul 2025
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.