HARRIS COUNTY WCID 109

HOUSTON, TX · ~10,134 people served

Check your exact address → HOUSTON overview

100

Excellent

PurityRadar safety score

PWSID

TX1010359

State

Texas

City

HOUSTON

Population served

10,134

Primary source

SWP

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

12,300 ppt

limit —

No federal limit

PFBA

8.6 ppt

limit —

No federal limit

Violations & enforcement

Violations on record

Unaddressed

Health-based

Enforcement actions

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

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

Monitoring & reporting · Total coliform began Aug 2012 Resolved

Monitoring & reporting · Total coliform began Jul 2012 Resolved

Monitoring & reporting · Lead & Copper Rule began Oct 2010 Resolved

Monitoring & reporting · EPA contaminant 3014 began Sep 2010 Resolved

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

Recent enforcement actions

State action · SOX May 2015
State action · SOX Apr 2015
State action · SOX Jun 2014
State action · SOX Jun 2014
State action · SIF Nov 2012
State action · SIF Nov 2012
State action · SIA Oct 2012
State action · SIE Oct 2012

This profile is built from EPA public records for system TX1010359 — 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.