HARRIS COUNTY WCID 110

HOUSTON, TX · ~9,807 people served

Check your exact address → HOUSTON overview

100

Excellent

PurityRadar safety score

PWSID

TX1010482

State

Texas

City

HOUSTON

Population served

9,807

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

Lithium

28,700 ppt

limit —

No federal limit

PFBA

8 ppt

limit —

No federal limit

Violations & enforcement

Violations on record

Unaddressed

Health-based

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Jun 2014. Official EPA record →

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

Monitoring & reporting · Total coliform began Oct 2008 Resolved

Monitoring & reporting · EPA contaminant 0999 began Oct 2008 Resolved

Recent enforcement actions

State action · SOX Jun 2014
State action · SOX Aug 2009
State action · SIF Jun 2009
State action · SIA Mar 2009
State action · SIE Mar 2009
State action · SOX Oct 2008
EPA/federal action · EFJ Jul 1980

This profile is built from EPA public records for system TX1010482 — 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.