Water Quality in Thornton, CO (80654)
EPA violation data for public water systems serving ZIP code 80654.
Active Health Violations
6 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.
3,657
Population
9
Water Systems
39
Violations (5yr)
6
Health-Based
Location
Loading map...
Water Systems Serving This Area (9)
Thornton City Of
All resolvedWestminster City Of
All resolvedGreeley City Of
All resolvedSouth Adams County Wsd
Brighton City Of
1 health-basedNorthglenn City Of
Ft Morgan City Of
All resolvedWiggins Town Of
All resolvedPrairie View Ranch Wd
5 health-basedContaminants Found
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: Jan 2025
How Does This Compare?
Thornton (80654) 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
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.