HARRIS COUNTY MUD 163

HOUSTON, TX · ~5,487 people served

Check your exact address → HOUSTON overview

100

Excellent

PurityRadar safety score

PWSID

TX1012213

State

Texas

City

HOUSTON

Population served

5,487

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

PFPeA

3.4 ppt

limit —

No federal limit

PFHxA

3.1 ppt

limit —

No federal limit

Violations & enforcement

Violations on record

Unaddressed

Health-based

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Mar 2008. Official EPA record →

Max contaminant level (MCL) · Total coliform health-based began Aug 2007 Resolved

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

Recent enforcement actions

State action · SOX Mar 2008
State action · SIE Sep 2007
State action · SIA Sep 2007
State action · SIF Aug 2007
State action · SOX Jun 1993
State action · SFJ Mar 1990
State action · SFJ Jun 1985
State action · SFJ May 1985

This profile is built from EPA public records for system TX1012213 — 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.