Water Quality in Helena, MT (59635)
EPA violation data for public water systems serving ZIP code 59635.
Active Health Violations
9 health-based violations found in the past 5 years, with at least one still unresolved. Contaminant levels have exceeded federal safety limits. Consider testing your tap water independently.
More violations than 94% of US ZIP codes.
Based on EPA compliance data. Not a substitute for an official water quality report from your utility.
8,292
Population
35
Water Systems
70
Violations (5yr)
9
Health-Based
Location
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Water Systems Serving This Area (35)
Helena Water System
3 health-basedEast Helena City Of
1 health-basedEastgate Village Sewer And Water
All resolvedBobs Valley Service Inc
1 health-basedBig Sky Food And Fuel Inc
La Casa Grande Water And Sewer District
All resolvedSkyview Water And Sewer Utility
1 health-basedGolden Estates Homeowners Association
All resolvedEastgate School District 09
Canyon Ferry Road Baptist Church
All resolvedJ&D A & W
Grass Land Estates
Bridge Creek Estates Subdivision
Pele Park
All resolvedDavis Meadow Village
All resolvedLiberty Baptist Church
Pebble Gardens Mobile Home Ct
Ace Hardware North Helena
All resolvedPapa Rays Casino And Hugos Pizza
Discovery Kid Zone Montessori
Homestead Valley Wua Hvha
Buzz Inn
Masonic Home Of Montana
All resolvedSaddle Mountain Estates-Clancy
Ruger Water District
Big Bull Bar And Grill
Mcdonald Trailer Ct
All resolvedCity Lights Comm Subdi
Glass Slipper Lounge And Grocery
All resolvedSunnybrook Acres Hoa
Broadwater Estates Hoa
3 health-basedPhoenix Park
All resolvedBahny Brae Subdivision
Clear Sky Mobile Home Park
Cliff Ingeldew
Contaminants Found
Missed testing deadlines — not a detection of bacteria.
Lead and copper testing requirement. Lead exposure can cause developmental harm in children.
A naturally occurring element that can cause cancer and other health effects at high levels.
Annual water quality report delivery requirement.
Lead & Copper Levels
Lead (Pb)
Within limitSampled: Jan 2025
How Does This Compare?
Helena (59635) has more violations than 94% of US ZIP codes. The national average is 18.87 violations per ZIP over 5 years. This ZIP has 70.
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.
Reverse Osmosis System
Highly effective at removing heavy metals, dissolved solids, and a wide range of contaminants. Recommended for homes with lead or arsenic concerns.
Targets:Lead, Copper, Arsenic, Mercury, Cadmium
Look for:NSF/ANSI 58 certified
Activated Carbon Filter
Excellent for removing chlorine, chloramine, and disinfection byproducts like THMs and HAAs. Available as pitcher filters, countertop, or under-sink units.
Targets:THMs, HAAs, Chlorine, Chloramine, Taste & Odor
Look for:NSF/ANSI 42 & 53 certified
UV Water Purifier
Uses ultraviolet light to neutralize bacteria, viruses, and parasites without chemicals. Ideal for homes with microbial contamination concerns.
Targets:E. coli, Coliform, Giardia, Cryptosporidium
Look for:NSF/ANSI 55 (Class A) 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.