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Water system · PWSID TX1010649

HARRIS COUNTY MUD 23

HOUSTON, TX · ~3,170 people served

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

PWSID

TX1010649

State

Texas

City

HOUSTON

Population served

3,170

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

Lithium

24,000 ppt

limit —

No federal limit

PFBA

6.4 ppt

limit —

No federal limit

PFHxA

3.6 ppt

limit —

No federal limit

PFPeA

3.6 ppt

limit —

No federal limit

Violations & enforcement

26

Violations on record

1

Unaddressed

3

Health-based

31

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Aug 2016. Official EPA record →

Monitoring & reporting · Lead & Copper Rule began Dec 2025 Unaddressed
Monitoring & reporting · Lead & Copper Rule began Dec 2013 Resolved
Max contaminant level (MCL) · Gross alpha health-based began Apr 2013 Resolved
Max contaminant level (MCL) · Gross alpha health-based began Jan 2013 Resolved
Max contaminant level (MCL) · Gross alpha health-based began Oct 2012 Resolved
Other · EPA contaminant 7000 began Jul 2012 Resolved
Monitoring & reporting · EPA contaminant 2035 began Jan 2011 Resolved
Monitoring & reporting · EPA contaminant 2020 began Jan 2011 Resolved
Monitoring & reporting · EPA contaminant 2005 began Jan 2011 Resolved
Monitoring & reporting · EPA contaminant 2042 began Jan 2011 Resolved
Monitoring & reporting · EPA contaminant 2050 began Jan 2011 Resolved
Monitoring & reporting · EPA contaminant 2015 began Jan 2011 Resolved

Recent enforcement actions

  • State action · SOX Aug 2016
  • State action · SOX Jul 2015
  • State action · SIF May 2014
  • State action · SIE Mar 2014
  • State action · SIA Mar 2014
  • State action · SOX Jan 2014
  • State action · SIF Aug 2013
  • State action · SOX Jun 2013

This profile is built from EPA public records for system TX1010649 — 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.