Water Quality in Chester, MT (59522)
EPA violation data for public water systems serving ZIP code 59522.
Active Health Violations
4 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 88% of US ZIP codes.
Based on EPA compliance data. Not a substitute for an official water quality report from your utility.
1,315
Population
9
Water Systems
39
Violations (5yr)
4
Health-Based
Location
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Water Systems Serving This Area (9)
Chester Town Of
Sage Creek Co Water District
Riverview Colony
2 health-basedSage Creek Colony
All resolvedHi-Line Colony
All resolvedSouth Chester Water Dist
2 health-basedTiber Marina
David Erickson Water Hauler
Tiber Dam Field Office & Camp
Contaminants Found
Annual water quality report delivery requirement.
Missed testing deadlines — not a detection of bacteria.
Lead and copper testing requirement. Lead exposure can cause developmental harm in children.
Lead & Copper Levels
Lead (Pb)
Within limitSampled: Jul 2025
How Does This Compare?
Chester (59522) has more violations than 88% of US ZIP codes. The national average is 18.87 violations per ZIP over 5 years. This ZIP has 39.
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.
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
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.