Tap water in Castle Rock, CO — ZIP 80108

4 public water systems serving about 204,703 people. PFAS "forever chemicals" have been detected here.

Failing

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 80108

Castle Rock Town Of

PWSID CO0118010 · serves 110,298 · surface water

0 health-based / 8 total violations (5 yrs) · PFAS up to 5.1 ppt

Parker Wsd

PWSID CO0118040 · serves 75,949 · surface water

0 health-based / 6 total violations (5 yrs) · PFAS up to 14 ppt — above federal limit

Castle Pines North Md

PWSID CO0118006 · serves 12,800 · surface water

0 health-based / 4 total violations (5 yrs) · PFAS up to 6.4 ppt

Castle Pines Village Md

PWSID CO0118005 · serves 5,656 · groundwater

0 health-based / 1 total violations (5 yrs)

Grades summarize EPA SDWIS violation records (last 5 years) and UCMR 5 PFAS results. They are informational, not a health determination. Methodology