CITY OF HOUSTON DISTRICT 73

HOUSTON, TX · ~6,105 people served

Check your exact address → HOUSTON overview

100

Excellent

PurityRadar safety score

PWSID

TX1011585

State

Texas

City

HOUSTON

Population served

6,105

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

14,500 ppt

limit —

No federal limit

Violations & enforcement

Violations on record

Unaddressed

Health-based

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Nov 2013. Official EPA record →

Max contaminant level (MCL) · Total coliform health-based began Sep 2013 Resolved

Monitoring & reporting · EPA contaminant 0999 began Jul 2010 Resolved

Recent enforcement actions

State action · SIF Nov 2013
State action · SOX Nov 2013
State action · SIA Oct 2013
State action · SIE Oct 2013
State action · SOX Feb 2011
State action · SFJ Mar 1990
EPA/federal action · EFJ Feb 1980

This profile is built from EPA public records for system TX1011585 — 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.