Denver
Tap water in Denver comes from 6 water systems: 5 low risk, 1 high risk. Has an unresolved health violation, so check local advice where the rating is high risk.
6 official water systems are listed for this town. Each keeps its own rating.
Is it safe?
Advenir French Quarter
High risk
Has an unresolved health violation, so check local advice
1 health-based violation began in the last 3 years. 1 is still unresolved.
Serves about 3,447 people.
Source water: surface water.
Last health violation began 2026-07-01.
The violations involved Stage 1 Disinfectants and Disinfection Byproducts Rule.
Is it safe?
Cherry Creek Valley WSD
Low risk
Meets federal drinking water standards
No health-based violations began in the last 3 years, and none are unresolved.
Serves about 22,000 people.
Source water: surface water.
Is it safe?
Crestview WSD
Low risk
Meets federal drinking water standards
No health-based violations began in the last 3 years, and none are unresolved.
Serves about 23,756 people.
Source water: surface water.
Is it safe?
Denver Water Board
Low risk
Meets federal drinking water standards
No health-based violations began in the last 3 years, and none are unresolved.
Serves about 1,287,000 people.
Source water: surface water.
Is it safe?
High View WD
Low risk
Meets federal drinking water standards
No health-based violations began in the last 3 years, and none are unresolved.
Serves about 4,000 people.
Source water: surface water.
Is it safe?
North Washington Street WSD
Low risk
Meets federal drinking water standards
No health-based violations began in the last 3 years, and none are unresolved.
Serves about 14,500 people.
Source water: surface water.
Last health violation began 2019-05-31.
Source
US EPA Safe Drinking Water Information System.
Period covered: October 2023 to September 2026.
Covers community water systems serving 3,300 people or more. The rating uses health-based violations of federal drinking-water standards in the last three years, and whether those violations have been fixed. Each system is placed at a town it serves, so positions are approximate.
Common questions
Can I drink the tap water in Denver, Colorado?
Tap water in Denver comes from 6 water systems: 5 low risk, 1 high risk. Has an unresolved health violation, so check local advice where the rating is high risk.
Where do these ratings come from?
US EPA Safe Drinking Water Information System. Period covered: October 2023 to September 2026.