Is Allen, Texas tap water safe?
5 water systems report serving Allen. 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.
A
City of Plano
Serves 292,059 people · Surface water · Full report →
No health-based violations in the last 5 years; PFAS tested (UCMR 5), none above federal limits; Lead 90th percentile below the action level (2025).
A
City of Allen
Serves 113,746 people · Surface water · Full report →
No health-based violations in the last 5 years; PFAS tested (UCMR 5), none above federal limits; Lead 90th percentile below the action level (2025).
A
City of Lucas
Serves 8,378 people · Surface water · Full report →
No health-based violations in the last 5 years; 2 monitoring/reporting violations; PFAS tested (UCMR 5), none above federal limits; Lead 90th percentile below the action level (2025).
A
City of Parker
Serves 6,486 people · Surface water · Full report →
No health-based violations in the last 5 years; PFAS tested (UCMR 5), none above federal limits; Lead 90th percentile below the action level (2025).
B
Seis Lagos Utility District
Serves 2,037 people · Surface water · Full report →
No health-based violations in the last 5 years; 9 monitoring/reporting violations; 5 not yet resolved; No UCMR 5 PFAS results on file; Lead 90th percentile below the action level (2022).