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Water system · PWSID TX1013310

HARRIS COUNTY MUD 400 - WEST

HOUSTON, TX · ~5,217 people served

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

PWSID

TX1013310

State

Texas

City

HOUSTON

Population served

5,217

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

Lithium

19,900 ppt

limit —

No federal limit

Violations & enforcement

2

Violations on record

0

Unaddressed

0

Health-based

2

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Jun 2014. Official EPA record →

Monitoring & reporting · Lead & Copper Rule began Dec 2013 Resolved
Monitoring & reporting · Total coliform began Oct 2008 Resolved

Recent enforcement actions

  • State action · SOX Jun 2014
  • State action · SOX Oct 2008

This profile is built from EPA public records for system TX1013310 — 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.