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Water system · PWSID TX1011227

HARRIS COUNTY MUD 105

HOUSTON, TX · ~14,925 people served

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

PWSID

TX1011227

State

Texas

City

HOUSTON

Population served

14,925

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

Lithium

13,600 ppt

limit —

No federal limit

PFBA

5.8 ppt

limit —

No federal limit

PFPeA

4.1 ppt

limit —

No federal limit

PFHxA

3.8 ppt

limit —

No federal limit

Violations & enforcement

26

Violations on record

1

Unaddressed

18

Health-based

61

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Dec 2012. Official EPA record →

Other · EPA contaminant 7500 began Mar 2010 Unaddressed
Other · EPA contaminant 7500 began Jul 2012 Resolved
Other · EPA contaminant 7500 began Jul 2012 Resolved
Other · EPA contaminant 7500 began Jun 2012 Resolved
Other · EPA contaminant 7500 began Apr 2012 Resolved
Other · EPA contaminant 7500 began Apr 2012 Resolved
Max contaminant level (MCL) · Arsenic health-based began Oct 2011 Resolved
Max contaminant level (MCL) · Arsenic health-based began Jul 2011 Resolved
Max contaminant level (MCL) · Gross alpha health-based began Jul 2011 Resolved
Max contaminant level (MCL) · Gross alpha health-based began Apr 2011 Resolved
Max contaminant level (MCL) · Gross alpha health-based began Jan 2011 Resolved
Max contaminant level (MCL) · Uranium health-based began Jan 2011 Resolved

Recent enforcement actions

  • State action · SIA Dec 2012
  • State action · SIA Dec 2012
  • State action · SIA Dec 2012
  • State action · SIA Dec 2012
  • State action · SIA Dec 2012
  • State action · SOX Oct 2012
  • State action · SOX Oct 2012
  • State action · SIE Apr 2012

This profile is built from EPA public records for system TX1011227 — 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.