Is Westminster, Colorado tap water safe?
4 water systems report serving Westminster. Your water depends on which one serves your address. Check your bill if unsure. This list is matched from the ZIP codes in this place, so it may include nearby systems.
B
Denver Water
Serves 1,287,000 people · Surface water · Full report →
No health-based violations in the last 5 years; 34 monitoring/reporting violations; PFAS tested (UCMR 5), none above federal limits; Lead 90th percentile below the action level (2026).
A
City of Westminster
Serves 202,078 people · Surface water · Full report →
No health-based violations in the last 5 years; 3 monitoring/reporting violations; PFAS tested (UCMR 5), none above federal limits; Lead 90th percentile below the action level (2025).
A
City of Arvada
Serves 171,610 people · Surface water · Full report →
No health-based violations in the last 5 years; 4 monitoring/reporting violations; PFAS tested (UCMR 5), none above federal limits; Lead 90th percentile below the action level (2025).
C
Belleview Christian College
Serves 460 people · Groundwater · Full report →
1 health-based violation in the last 5 years; 46 monitoring/reporting violations; No UCMR 5 PFAS results on file; Lead 90th percentile below the action level (2025).