PWSID
TX1870009
State
Texas
City
ONALASKA
Population served
5,289
Primary source
Groundwater
Score history
No change since tracking began Jun 18, 2026.
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 Dec 2023). Levels in parts per trillion (ppt).
Lithium
90,300 ppt
limit —
Violations & enforcement
1
Violations on record
1
Unaddressed
0
Health-based
12
Enforcement actions
From EPA ECHO (SDWIS), most recent enforcement Dec 2025. Official EPA record →
Recent enforcement actions
- State action · SIA Dec 2025
- State action · SFJ May 1991
- State action · SFJ Dec 1986
- State action · SIF Sep 1984
- State action · SIF Jun 1981
- State action · SIF Feb 1981
- State action · SIF Nov 1980
- EPA/federal action · EFJ Jun 1980
This profile is built from EPA public records for system TX1870009 — 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.