Chromium-6 Contamination in Colorado

ZipCheckup analyzed drinking water data across 658 ZIP codes in Colorado for chromium-6 contamination. 2 ZIP codes have reported chromium-6 detections, and 3 have EPA violations on record.

The violation rate for chromium-6 in Colorado is 0.5% of all ZIP codes — lower than the national average.

EPA Standard for Chromium-6

The EPA maximum contaminant level (MCL) for chromium-6 is 100 ppb (total chromium MCL), governed by the National Primary Drinking Water Regulations. Water systems that exceed this limit must take corrective action and notify consumers.

Worst ZIP Codes for Chromium-6 in Colorado

These ZIP codes reported the highest chromium-6 levels in Colorado based on CCR reports and EPA data:

Lowest Chromium-6 Levels in Colorado

These ZIP codes had the lowest reported chromium-6 detections in Colorado:

Health Effects of Chromium-6

How to Remove Chromium-6 From Drinking Water

The most effective treatment for chromium-6 removal is Reverse Osmosis or Strong-Base Anion Exchange. Look for filters certified under NSF 58 standards.

Check Your ZIP Code

Use the ZipCheckup water quality search to see chromium-6 data for your specific water system in Colorado.