HARRIS COUNTY MUD 180

HOUSTON, TX · ~5,892 people served

Check your exact address → HOUSTON overview

100

Excellent

PurityRadar safety score

PWSID

TX1011799

State

Texas

City

HOUSTON

Population served

5,892

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

Lithium

15,400 ppt

limit —

No federal limit

Violations & enforcement

Violations on record

Unaddressed

Health-based

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Dec 2018. Official EPA record →

Monitoring & reporting · Lead & Copper Rule began Dec 2017 Resolved

Other · EPA contaminant 7000 began Jul 2015 Resolved

Max contaminant level (MCL) · Arsenic health-based began Apr 2015 Resolved

Other · EPA contaminant 7000 began Jul 2001 Resolved

Recent enforcement actions

State action · SOX Dec 2018
State action · SIA Feb 2018
State action · SOX May 2017
State action · SOX Feb 2016
State action · SIF Oct 2015
State action · SIA Oct 2015
State action · SIE Aug 2015
State action · SIA Aug 2015

This profile is built from EPA public records for system TX1011799 — 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.