Is Jefferson, Texas tap water safe?
5 water systems report serving Jefferson. 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
Western Cass WSC
Serves 5,871 people · Groundwater · 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 (2023).
C
Harleton WSC
Serves 4,107 people · Surface water · Full report →
1 health-based violation in the last 5 years; 12 monitoring/reporting violations; 5 not yet resolved; PFAS tested (UCMR 5), none above federal limits; Lead 90th percentile below the action level (2025).
D
E M C Water Supply
Serves 2,952 people · Groundwater · Full report →
8 health-based violations in the last 5 years; 2 monitoring/reporting violations; No UCMR 5 PFAS results on file; Lead 90th percentile below the action level (2026).
A
City of Jefferson
Serves 1,883 people · Surface water · Full report →
No health-based violations in the last 5 years; 2 monitoring/reporting violations; 1 not yet resolved; No UCMR 5 PFAS results on file; Lead 90th percentile below the action level (2025).
B
Kellyville Berea WSC
Serves 1,125 people · Groundwater · Full report →
1 health-based violation in the last 5 years; 2 monitoring/reporting violations; 1 not yet resolved; No UCMR 5 PFAS results on file; Lead 90th percentile below the action level (2025).