Tap water in Denver, CO — ZIP 80111
2 public water systems serving about 1,318,000 people. PFAS "forever chemicals" have been detected here.
C
Fair
PFAS detected: at least one system serving this ZIP reported PFAS in EPA UCMR 5
testing. Levels and the 2024 federal limits are shown per system below.
Water systems serving 80111
Denver Water Board
PWSID CO0116001 · serves 1,287,000 ·
surface water
0 health-based / 34 total violations (5 yrs)
Arapahoe Cnty Wwwa
PWSID CO0203002 · serves 31,000 ·
groundwater
0 health-based / 0 total violations (5 yrs)
· PFAS up to 7.9 ppt — above federal limit
Grades summarize EPA SDWIS violation records (last 5 years) and UCMR 5 PFAS results. They are informational, not a health determination. Methodology