Water Quality in Helena, MT (59604)
EPA violation data for public water systems serving ZIP code 59604.
Past Health-Based Violations
2 health-based violations were found in the past 5 years, meaning contaminant levels exceeded federal safety limits. All have since been resolved. There are also 34 monitoring/reporting violations.
More violations than 87% of US ZIP codes.
Based on EPA compliance data. Not a substitute for an official water quality report from your utility.
17
Water Systems
36
Violations (5yr)
2
Health-Based
Location
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Water Systems Serving This Area (17)
Ten Mile And Pleasant Valley Wua
1 health-basedTreasure State Acres Wua
Gates Of The Mountains Inc
1 health-basedRanchview Estates Wua
All resolvedShade Tree Mobile Park
All resolvedFrontier Town
Loyal Order Of Moose No 639
Rivers Edge Mobile Home Park Grt Fls
All resolvedBig Stack Estates
All resolvedBeacon Trailer Court Helena
All resolvedKolar Tire Joslyn Helena Unapproved
Cloverleaf Dairy (Dist Water)
Cloverleaf Dairy (Drink Water)
Westmont Teddy Bear Daycare
Rgb Llc 1
Glenn And Beverly Clevenger
Western Skies Mobile Ct
Contaminants Found
Lead and copper testing requirement. Lead exposure can cause developmental harm in children.
Missed testing deadlines — not a detection of bacteria.
Annual water quality report delivery requirement.
Lead & Copper Levels
Lead (Pb)
Within limitSampled: Jan 2025
How Does This Compare?
Helena (59604) has more violations than 87% of US ZIP codes. The national average is 18.87 violations per ZIP over 5 years. This ZIP has 36.
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
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.