Is Alto, Texas tap water safe?
3 water systems report serving Alto. 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.
C
Alto Rural WSC Coldsprings Plant
Serves 2,313 people · Groundwater · Full report →
1 health-based violation in the last 5 years; 11 monitoring/reporting violations; 2 not yet resolved; No UCMR 5 PFAS results on file; Lead 90th percentile below the action level (2025).
C
Alto Rural WSC Central High Plant
Serves 1,305 people · Groundwater · Full report →
1 health-based violation in the last 5 years; 12 monitoring/reporting violations; 3 not yet resolved; PFAS tested (UCMR 5), none above federal limits; Lead 90th percentile below the action level (2025).
B
City of Alto
Serves 1,225 people · Groundwater · Full report →
No health-based violations in the last 5 years; 13 monitoring/reporting violations; No UCMR 5 PFAS results on file; Lead 90th percentile below the action level (2026).