WaterQ
Colorado State Report All States
Official Status: March 2026

Is Denver tap water safe to drink?

✓ Generally Safe
A

Mostly yes — Denver scores 92/100.

Safety Score
92
out of 100

Still not sure if you need a filter in Denver?

Read Decision Guide →

Denver

Colorado

View Colorado state report Verified: Apr 2026

Is Denver tap water safe to drink?

Mostly yes — Denver scores 92/100. This report aggregates EPA drinking water data across 1 local system in Denver. We found 0 total violations (0 unresolved).

Real-Time Environment

Live: 02:45 PM
0mm Precipitation

☀️ No active precipitation. Rainfall can impact surface water turbidity and pollutant runoff in Denver.

Water Quality Impact

✅ Minimal Impact Localized weather conditions may influence test result variability.

🛡️ Home Water Treatment Needs

Should you invest in filtration or softening for your home in Denver?

Requirement Status
Optional
🟢
💡

Expert Advice

Your water quality is excellent. Standard filtration is optional but can further enhance taste.

Buying a Filter?

Should you buy a water purifier in Denver? See our analysis.

Baby Formula Safety

Is Denver tap water safe for infants? Critical safety guide.

Homebuyer's Perspective

For those looking to relocate to Denver, water quality is a key factor in long-term property maintenance. The high safety score (92/100) suggests lower risk for plumbing corrosion and appliance scaling.

Property Impact: Positive / Stable

Health & Family Safety

Residents should monitor Manganese levels. Pregnant women and families with young children should consult the specific EPA health goals listed below.

View Health Risk Glossary →

Score Breakdown for Denver

EPA Compliance & Violations 85/100
Contaminant Safety Margin 92%

*Scores are calculated using weighted EPA monitoring data from the past 5 years.

Frequently Asked Questions

Is Denver tap water safe to drink?

Mostly yes — Denver scores 92/100.

How many water systems serve Denver?

Denver is served by 1 public water system in our latest EPA-backed dataset.

How can I check water quality for my exact address in Denver?

Use the WaterQ search tool to look up your ZIP code and view nearby systems, contaminant levels, and recent violations for Denver.

What is the water quality score for Denver?

The water quality score for Denver is N/A out of 100, based on EPA contaminant data, violation history, and testing results for all serving water systems.

What are the top contaminants in Denver?

The top contaminants detected in Denver include Manganese, Barium, PFOS (Perfluorooctane Sulfonate). View detailed information on our contaminants page.

Water Quality Score
92/100
Grade
A
Water Systems
10
Population
1.4M

Denver Water Quality Summary

Denver, CO receives a water quality score of 92/100 (Grade A) based on EPA Safe Drinking Water Information System (SDWIS) compliance data for 10 public water systems serving the area.

Denver's water quality is above the national average, with strong compliance records and low contaminant levels. Residents generally receive clean, safe tap water that meets EPA standards.

Water quality data is sourced from the U.S. EPA SDWIS database and updated quarterly. Learn about our scoring methodology →

Key Contaminants

Manganese Violation
74.9997 / 50 μg/L
0 μg/L MCL: 50 μg/L
Barium
1.8442 / 2 mg/L
0 mg/L MCL: 2 mg/L
PFOS (Perfluorooctane Sulfonate)
0.0018 / 0.004 μg/L
0 μg/L MCL: 0.004 μg/L
Nitrate
4.4578 / 10 mg/L
0 mg/L MCL: 10 mg/L
Chloramine
0.9438 / 4 mg/L
0 mg/L MCL: 4 mg/L
Radium-228
0.1399 / 5 pCi/L
0 pCi/L MCL: 5 pCi/L

Water Systems Serving Denver (1)

Related

Compare Denver water quality: View all states · Contaminant library · How we score water quality