HARRIS COUNTY WCID 92

HOUSTON, TX · ~4,752 people served

Check your exact address → HOUSTON overview

100

Excellent

PurityRadar safety score

PWSID

TX1010124

State

Texas

City

HOUSTON

Population served

4,752

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

Lithium

12,500 ppt

limit —

No federal limit

Violations & enforcement

Violations on record

Unaddressed

Health-based

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Apr 2015. Official EPA record →

Monitoring & reporting · Lead & Copper Rule began Dec 2025 Unaddressed

Monitoring & reporting · Lead & Copper Rule began Dec 2013 Resolved

Max contaminant level (MCL) · Total coliform health-based began Sep 2011 Resolved

Monitoring & reporting · Lead & Copper Rule began Jul 1992 Resolved

Recent enforcement actions

State action · SOX Apr 2015
State action · SOX May 2014
State action · SIF Oct 2011
State action · SIA Sep 2011
State action · SIE Sep 2011
State action · SOX Jun 1993
State action · SFJ Mar 1990
State action · SFJ Mar 1990

This profile is built from EPA public records for system TX1010124 — 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.