HARRIS COUNTY MUD 5

HOUSTON, TX · ~5,487 people served

Check your exact address → HOUSTON overview

100

Excellent

PurityRadar safety score

PWSID

TX1010500

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 Dec 2023). Levels in parts per trillion (ppt).

Lithium

19,900 ppt

limit —

No federal limit

Violations & enforcement

Violations on record

Unaddressed

Health-based

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Jun 2020. Official EPA record →

Other · EPA contaminant 7500 began Apr 2019 Unaddressed

Monitoring & reporting · Nitrate began Jan 2017 Resolved

Monitoring & reporting · Fluoride began Jan 2015 Resolved

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

Recent enforcement actions

State action · SOX Jun 2020
State action · SIA May 2019
State action · SIA May 2019
State action · SOX Jul 2018
State action · SIA Apr 2018
State action · SIE Apr 2018
State action · SIE Apr 2018
State action · SIA Apr 2018

This profile is built from EPA public records for system TX1010500 — 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.