Water Quality in Columbia, MO (65203)
EPA violation data for public water systems serving ZIP code 65203.
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 72% of US ZIP codes.
Based on EPA compliance data. Not a substitute for an official water quality report from your utility.
61,539
Population
9
Water Systems
19
Violations (5yr)
2
Health-Based
Location
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Water Systems Serving This Area (9)
City Of Columbia Utilities
All resolvedUniversity Of Missouri Columbia
Boone County Cons Pwsd 1
Boone County Pwsd 9
Walnut Woods Llc
Coopers Landing
1 health-basedHatton Hills Mhp
Chimney Point Assn
Central Mo Community Action Morgan Co
1 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: Jul 2025
How Does This Compare?
Columbia (65203) has more violations than 72% of US ZIP codes. The national average is 18.87 violations per ZIP over 5 years. This ZIP has 19.
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.
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.