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Water system · PWSID TX1700386

DECKER HILLS

AUSTIN, TX · ~3,780 people served

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

PWSID

TX1700386

State

Texas

City

AUSTIN

Population served

3,780

Primary source

Groundwater

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

Lithium

11,000 ppt

limit —

No federal limit

Violations & enforcement

12

Violations on record

2

Unaddressed

2

Health-based

44

Enforcement actions

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

Other · EPA contaminant 7500 began Oct 2025 Unaddressed
Other · EPA contaminant 7500 began Aug 2025 Unaddressed
Monitoring & reporting · EPA contaminant 3014 began Aug 2024 Resolved
Monitoring & reporting · Lead & Copper Rule began Jan 2024 Resolved
Monitoring & reporting · Lead & Copper Rule began Jan 2021 Resolved
Max contaminant level (MCL) · Total coliform health-based began Feb 2010 Resolved
Max contaminant level (MCL) · Total coliform health-based began Jun 2005 Resolved
Other · EPA contaminant 7500 began May 2004 Resolved
Monitoring & reporting · Total coliform began Jan 2004 Resolved
Other · EPA contaminant 7500 began Sep 2003 Resolved
Monitoring & reporting · Total coliform began Jul 2003 Resolved
Monitoring & reporting · Total coliform began May 2003 Resolved

Recent enforcement actions

  • State action · SIA Nov 2025
  • State action · SIA Sep 2025
  • State action · SOX Nov 2024
  • State action · SOX Nov 2024
  • State action · SIA Oct 2024
  • State action · SIE Oct 2024
  • State action · SIE Aug 2024
  • State action · SIA Aug 2024

This profile is built from EPA public records for system TX1700386 — 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.