Is pfas a problem in Colorado drinking water?

PFAS was detected in Colorado water systems but within the EPA limit of 4 ppt (PFOA/PFOS). Check the ZIP code table on this page for area-specific data.

How widespread is pfas in Colorado water?

No pfas detections were reported in Colorado in the exported EPA records.

PFAS · Colorado

PFAS in Colorado Drinking Water — 0 Violations

EPA data analysis for pfas in Colorado drinking water systems

ZIPs with Violations

4 ppt (PFOA/PFOS)

EPA Limit

High

Health Risk

Reverse Osmosis or Granular Activated Carbon

Best Filter Method

PFAS Contamination in Colorado

ZipCheckup analyzed EPA enforcement records across 307 ZIP codes in Colorado. 0 ZIP codes have pfas-related violations on record.

EPA Standard for PFAS

The EPA maximum contaminant level (MCL) for pfas is 4 ppt (PFOA/PFOS), governed by the PFAS NPDWR (2024). Water systems that exceed this limit must take corrective action and notify consumers.

Health Effects of PFAS

PFAS (per- and polyfluoroalkyl substances) are linked to cancer (kidney, testicular), thyroid disease, immune system suppression, reproductive problems, and elevated cholesterol. These "forever chemicals" persist in the body for years.

How to Remove PFAS From Drinking Water

The most effective treatment for pfas removal is Reverse Osmosis or Granular Activated Carbon. Look for filters certified under NSF 53 / NSF 58 standards.

Check Your ZIP Code

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

Cities with PFAS Data in Colorado

29 cities in Colorado have pfas testing data available.

Aurora Berthoud Brighton Broomfield Castle Rock Colorado Springs Commerce City Delta Denver Dillon Englewood Fountain Golden Gunnison Henderson Johnstown Lamar Littleton Lone Tree Longmont

+ 9 more cities

Colorado Water Quality Overview: See statewide water quality rankings on the Colorado water quality page.

Learn more about PFAS: Read the full guide on PFAS in drinking water.

Home → Contaminants → PFAS → Colorado

How to cite this page

APA ZipCheckup. (2026). PFAS in Colorado Drinking Water — 0 Violations. https://zipcheckup.com/contaminants/pfas/colorado/

BibTeX

@misc{zipcheckup-contaminants-pfas-colorado,
  author = {{ZipCheckup}},
  title  = {{PFAS in Colorado Drinking Water — 0 Violations}},
  year   = {2026},
  url    = {https://zipcheckup.com/contaminants/pfas/colorado/}
}

Page version: August 2026.