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Water system · PWSID TX1110004

OAK TRAIL SHORES

AUSTIN, TX · ~5,676 people served

Check your exact address → AUSTIN overview
100
Excellent
PurityRadar safety score

PWSID

TX1110004

State

Texas

City

AUSTIN

Population served

5,676

Primary source

Surface water

Score history

No change since tracking began Jun 18, 2026.

Jun 18, 2026 · score 100 Jun 18, 2026 · score 100

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 Nov 2024). Levels in parts per trillion (ppt).

PFHxS

Perfluorohexanesulfonic acid

3.6 ppt

limit 10 ppt

Below EPA limit

Lithium

27,900 ppt

limit —

No federal limit

PFBA

7.5 ppt

limit —

No federal limit

Violations & enforcement

47

Violations on record

0

Unaddressed

25

Health-based

139

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement May 2025. Official EPA record →

Other · EPA contaminant 7500 began Feb 2025 Resolved
Treatment technique · EPA contaminant 0300 health-based began Jan 2025 Resolved
Other · EPA contaminant 7500 began Jul 2024 Resolved
Other · EPA contaminant 7500 began Jul 2024 Resolved
Monitoring & reporting · Total trihalomethanes (TTHM) began Jun 2024 Resolved
Max contaminant level (MCL) · Total trihalomethanes (TTHM) health-based began Apr 2024 Resolved
Max contaminant level (MCL) · Total trihalomethanes (TTHM) health-based began Apr 2024 Resolved
Other · EPA contaminant 7500 began Mar 2024 Resolved
Other · EPA contaminant 7500 began Feb 2024 Resolved
Other · EPA contaminant 7500 began Feb 2024 Resolved
Other · EPA contaminant 7500 began Dec 2023 Resolved
Other · EPA contaminant 7500 began Dec 2023 Resolved

Recent enforcement actions

  • State action · SOX May 2025
  • State action · SIA Apr 2025
  • State action · SIA Mar 2025
  • State action · SOX Mar 2025
  • State action · SIE Jan 2025
  • State action · SOX Sep 2024
  • State action · SIF Aug 2024
  • State action · SIF Aug 2024

This profile is built from EPA public records for system TX1110004 — 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.