Water Quality in Columbia, MO (65243)
EPA violation data for public water systems serving ZIP code 65243.
No Health-Based Violations
None of the 6 water systems serving this ZIP have exceeded federal contaminant limits in the past 5 years. There are5 monitoring/reporting violations (missed testing deadlines), all resolved.
Better than 53% of US ZIP codes.
Based on EPA compliance data. Not a substitute for an official water quality report from your utility.
2,950
Population
6
Water Systems
5
Violations (5yr)
0
Health-Based
Location
Loading map...
Water Systems Serving This Area (6)
City Of Columbia Utilities
All resolvedUniversity Of Missouri Columbia
Boone County Cons Pwsd 1
Boone County Pwsd 9
Moberly Pws
Clark Pws
All resolvedContaminants Found
Missed testing deadlines — not a detection of bacteria.
Lead and copper testing requirement. Lead exposure can cause developmental harm in children.
Annual water quality report delivery requirement.
Lead & Copper Levels
Lead (Pb)
Within limitSampled: Jul 2025
How Does This Compare?
Columbia (65243) has more violations than 53% of US ZIP codes. The national average is 18.87 violations per ZIP over 5 years. This ZIP has 5, most of which are monitoring/reporting issues.
Water Filter Recommendations
No contaminant issues detected. For general protection, a basic carbon filter removes common impurities like chlorine and sediment. Look for NSF/ANSI 42 certified products.