HARRIS COUNTY MUD 61

HOUSTON, TX · ~2,016 people served

Check your exact address → HOUSTON overview

100

Excellent

PurityRadar safety score

PWSID

TX1010721

State

Texas

City

HOUSTON

Population served

2,016

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

Lithium

15,100 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 2014 Resolved

Monitoring & reporting · Total coliform began Apr 2011 Resolved

Other · EPA contaminant 7500 began Feb 2007 Resolved

Monitoring & reporting · Total coliform began Oct 2006 Resolved

Other · EPA contaminant 7500 began Jan 2006 Resolved

Monitoring & reporting · Total coliform began Sep 2005 Resolved

Recent enforcement actions

State action · SOX Apr 2015
State action · SOX Apr 2015
State action · SOX Mar 2015
State action · SIA Feb 2015
State action · SIA Oct 2011
State action · SIE Oct 2011
State action · SIF Jul 2011
State action · SIE May 2011

This profile is built from EPA public records for system TX1010721 — 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.