CITY OF HOUSTON WILLOW CHASE

HOUSTON, TX · ~14,169 people served

Check your exact address → HOUSTON overview

100

Excellent

PurityRadar safety score

PWSID

TX1011902

State

Texas

City

HOUSTON

Population served

14,169

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 Jul 2025). Levels in parts per trillion (ppt).

Lithium

14,000 ppt

limit —

No federal limit

Violations & enforcement

Violations on record

Unaddressed

Health-based

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Dec 2011. Official EPA record →

Monitoring & reporting · Total coliform began Sep 2011 Resolved

Monitoring & reporting · Total coliform began Aug 2011 Resolved

Recent enforcement actions

State action · SIF Dec 2011
State action · SIE Nov 2011
State action · SIA Nov 2011
State action · SOX Nov 2011
State action · SIE Sep 2011
State action · SIA Sep 2011

This profile is built from EPA public records for system TX1011902 — 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.