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Water system · PWSID TX1012842

HARRIS COUNTY MUD 167

HOUSTON, TX · ~16,761 people served

Check your exact address → HOUSTON overview
100
Excellent
PurityRadar safety score

PWSID

TX1012842

State

Texas

City

HOUSTON

Population served

16,761

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

Lithium

19,000 ppt

limit —

No federal limit

Violations & enforcement

24

Violations on record

1

Unaddressed

15

Health-based

62

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement May 2021. Official EPA record →

Monitoring & reporting · EPA contaminant 3014 began Oct 2016 Unaddressed
Other · EPA contaminant 7500 began Aug 2018 Resolved
Monitoring & reporting · Lead & Copper Rule began Apr 2018 Resolved
Monitoring & reporting · Lead & Copper Rule began Jul 2017 Resolved
Monitoring & reporting · Lead & Copper Rule began Jul 2017 Resolved
Monitoring & reporting · Lead & Copper Rule began Jan 2017 Resolved
Monitoring & reporting · Lead & Copper Rule began Jan 2017 Resolved
Monitoring & reporting · Lead & Copper Rule began Jan 2017 Resolved
Monitoring & reporting · Lead & Copper Rule began Dec 2013 Resolved
Max contaminant level (MCL) · Gross alpha health-based began Jul 2004 Resolved
Max contaminant level (MCL) · Uranium health-based began Jul 2004 Resolved
Max contaminant level (MCL) · Gross alpha health-based began Jul 2004 Resolved

Recent enforcement actions

  • State action · SIF May 2021
  • State action · SOX May 2021
  • State action · SOX Dec 2020
  • State action · SIA Sep 2018
  • State action · SIF Aug 2018
  • State action · SOX Aug 2018
  • State action · SIF Aug 2018
  • State action · SIF Aug 2018

This profile is built from EPA public records for system TX1012842 — 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.