PWSID
TX0940022
State
Texas
City
SEGUIN
Population served
35,541
Primary source
Surface water
Score history
▼ 10 points — the score moved from 100 to 90 on Jun 18, 2026, as newly published EPA data was incorporated.
2 score updates logged since tracking began Jun 18, 2026. Each future EPA re-score adds a point.
PFAS & contaminant readings
Latest detections from EPA’s UCMR5 monitoring (through Mar 2024). Levels in parts per trillion (ppt).
PFOS
Perfluorooctanesulfonic acid
4.4 ppt
limit 4 ppt
Lithium
36,300 ppt
limit —
PFBA
5.4 ppt
limit —
PFPeA
3.1 ppt
limit —
Violations & enforcement
80
Violations on record
3
Unaddressed
16
Health-based
156
Enforcement actions
From EPA ECHO (SDWIS), most recent enforcement Mar 2025. Official EPA record →
Recent enforcement actions
- State action · SOX Mar 2025
- State action · SIF Jan 2025
- State action · SIE Dec 2024
- State action · SIA Dec 2024
- State action · SIF Sep 2024
- State action · SOX Sep 2024
- State action · SIA Sep 2024
- State action · SIE Aug 2024
This profile is built from EPA public records for system TX0940022 — SDWIS violations and UCMR5 PFAS sampling. The score is system-level and can’t account for your home’s plumbing (older pipes can add lead at the tap). For health decisions, check your exact address, read the utility’s Consumer Confidence Report, and confirm with your provider.