Columbia, Illinois Water Quality Report
Water quality data for 1 water system serving 11,129 people.
Water Source
Detected Contaminants
Recommended Water Filters
Based on the contaminants detected in your water supply, these filtration systems are recommended:
Reverse Osmosis (RO)
Reverse osmosis systems remove up to 99% of PFAS compounds. Recommended for homes with detected PFAS.
Up to 99% PFAS removal
Get a Free Water Quality Consultation
Connect with a certified water treatment professional in Columbia, Illinois.
Get Water Quality Alerts
Be the first to know when water quality changes in Columbia.
Compliance & Violations
Active Violations (2)
71
Jul 1, 2025
72
Jul 1, 2025
Resolved Violations (4)
72
Jul 1, 2019
72
Jul 1, 2019
71
Jul 1, 2018
71
Jul 1, 2018
Frequently Asked Questions
Is Columbia tap water safe to drink?
Columbia's water meets all EPA maximum contaminant levels. However, 3 contaminants were detected at various levels. Some residents may prefer additional filtration for peace of mind.
What contaminants are in Columbia tap water?
3 contaminants have been detected in Columbia's water supply across 1 water system. See the full contaminant table above for details.
How can I improve my water quality in Columbia?
Install a water filter rated for the specific contaminants found in Columbia's water. See our filter recommendations above. You can also request your utility's Consumer Confidence Report for the most current test results.
Does Columbia have any water quality violations?
Yes, Columbia currently has 2 active violations. See the violations section above for details.