Water Quality in Thornton, CO (80601)
EPA violation data for public water systems serving ZIP code 80601.
Active Health Violations
2 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 81% of US ZIP codes.
Based on EPA compliance data. Not a substitute for an official water quality report from your utility.
42,127
Population
27
Water Systems
23
Violations (5yr)
2
Health-Based
Location
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Water Systems Serving This Area (27)
Thornton City Of
All resolvedWestminster City Of
All resolvedGreeley City Of
All resolvedSouth Adams County Wsd
Brighton City Of
1 health-basedNorthglenn City Of
Corner Stop
Mountain View Wua
1 health-basedJohnson Auto Plaza
Hazeltine School
Kar Vu Drive In - Brighton
Third Creek Wua
All resolvedPetrocco Farms
Water Perfection - Lafayette
Riverdale Golf Course
Water Perfection-Platteville
Adams County Park/Gc'S/Fg/Etc.
Fountain Of Health
Conoco Food Store
Hazeltine School
Water Perfection Fort Morgan
Corner Stop
Hudson Labor Camp
Big Daddys Burgers
United Power Inc
Efrens Place
Chambers Addition Improvement
Contaminants Found
Lead and copper testing requirement. Lead exposure can cause developmental harm in children.
Missed testing deadlines — not a detection of bacteria.
Used to disinfect water — generally safe at regulated levels.
Lead & Copper Levels
Lead (Pb)
Within limitSampled: Jan 2025
How Does This Compare?
Thornton (80601) has more violations than 81% of US ZIP codes. The national average is 18.87 violations per ZIP over 5 years. This ZIP has 23.
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
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.