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Water system · PWSID TX1010503

HARRIS COUNTY MUD 102

HOUSTON, TX · ~10,401 people served

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

PWSID

TX1010503

State

Texas

City

HOUSTON

Population served

10,401

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

PFHxS

Perfluorohexanesulfonic acid

3.5 ppt

limit 10 ppt

Below EPA limit

Lithium

10,700 ppt

limit —

No federal limit

PFBA

8.6 ppt

limit —

No federal limit

PFHxA

8.4 ppt

limit —

No federal limit

PFPeA

8.3 ppt

limit —

No federal limit

PFBS

4.2 ppt

limit —

No federal limit

Violations & enforcement

2

Violations on record

0

Unaddressed

1

Health-based

5

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Aug 2015. Official EPA record →

Max contaminant level (MCL) · Total coliform health-based began Mar 2003 Resolved
Monitoring & reporting · Lead & Copper Rule began Jul 1992 Resolved

Recent enforcement actions

  • State action · SOX Aug 2015
  • State action · SIF May 2003
  • State action · SIA Apr 2003
  • State action · SIE Apr 2003
  • State action · SOX Jun 1993

This profile is built from EPA public records for system TX1010503 — 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.