June 17, 2026
Bacteria & Pathogens in Colorado Drinking Water 2026
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Bacteria & Pathogens in Colorado Drinking Water 2026
Bacteria & Pathogens contamination has been detected in drinking water systems across Colorado. Bacteria including E. coli and coliforms indicate sewage contamination and can cause gastrointestinal illness. Our analysis of Colorado water quality reports found Bacteria & Pathogens present in 35 cities and water systems statewide. If you live in one of these communities, a certified home filter can significantly reduce your exposure -- browse Bacteria & Pathogens filters at PureWaterGuys.
Cities in Colorado with Bacteria & Pathogens Detected
The following 35 water systems in Colorado reported Bacteria & Pathogens in their annual water quality reports. Click any city to read the full report.
| City / Water System | Water Quality Report |
|---|---|
| Agate Co Water Quality Report 2026 | View Report |
| Antonito Co Water Quality Report 2026 | View Report |
| Aurora Co Water Quality Report 2026 | View Report |
| Berthoud Co Water Quality Report 2026 | View Report |
| Bethune Co Water Quality Report 2026 | View Report |
| Beulah Co Water Quality Report 2026 | View Report |
| Blanca Co Water Quality Report 2026 | View Report |
| Brandon Co Water Quality Report 2026 | View Report |
| Branson Co Water Quality Report 2026 | View Report |
| Brighton Co Water Quality Report 2026 | View Report |
| Bristol Co Water Quality Report 2026 | View Report |
| Cheyenne Wells Co Water Quality Report 2026 | View Report |
| Crestone Co Water Quality Report 2026 | View Report |
| Del Norte Co Water Quality Report 2026 | View Report |
| Eagle Co Water Quality Report 2026 | View Report |
| Eckley Co Water Quality Report 2026 | View Report |
| Englewood Co Water Quality Report 2026 | View Report |
| Fort Smith Co Water Quality Report 2026 | View Report |
| Frisco Co Water Quality Report 2026 | View Report |
| Ft Garland Co Water Quality Report 2026 | View Report |
| Garcia Co Water Quality Report 2026 | View Report |
| Granada Co Water Quality Report 2026 | View Report |
| Henderson Co Water Quality Report 2026 | View Report |
| Irvine Co Water Quality Report 2026 | View Report |
| La Porte Co Water Quality Report 2026 | View Report |
| Lafayette Co Water Quality Report 2026 | View Report |
| Manassa Co Water Quality Report 2026 | View Report |
| Northbrook Co Water Quality Report 2026 | View Report |
| Olney Springs Co Water Quality Report 2026 | View Report |
| Saguache Co Water Quality Report 2026 | View Report |
| San Luis Co Water Quality Report 2026 | View Report |
| Sheridan Lake Co Water Quality Report 2026 | View Report |
| Sterling Co Water Quality Report 2026 | View Report |
| Vona Co Water Quality Report 2026 | View Report |
| Ward Co Water Quality Report 2026 | View Report |
What Does This Mean For You?
Detecting Bacteria & Pathogens in your water supply does not necessarily mean immediate danger, but long-term exposure -- even at low levels -- carries measurable health risk. UV purification systems and sub-micron filters (0.2 micron) eliminate bacteria and pathogens.
Our recommendation: View Bacteria & Pathogens filters certified for Colorado water conditions or take our free Water Finder Quiz to get a personalized recommendation.
Filter Bacteria & Pathogens From Your Colorado Tap Water
PureWaterGuys carries NSF-certified filters proven to reduce Bacteria & Pathogens and other contaminants found in Colorado water.
Shop Bacteria & Pathogens Filters Take the Water QuizFrequently Asked Questions
What is Bacteria & Pathogens?
Bacteria including E. coli and coliforms indicate sewage contamination and can cause gastrointestinal illness.
Is Colorado tap water safe to drink?
Water quality varies by city. Of the Colorado systems we analyzed, 35 detected Bacteria & Pathogens. Most levels are below EPA action thresholds, but long-term low-level exposure carries health risk. Check your city's report above or use a certified home filter as a precaution.
What filter removes Bacteria & Pathogens from tap water?
UV purification systems and sub-micron filters (0.2 micron) eliminate bacteria and pathogens. See our Bacteria & Pathogens filter options.
Data sourced from EPA-mandated annual water quality reports (Consumer Confidence Reports). Last updated: 2026. Not all systems are required to test for every contaminant.