HARRIS COUNTY MUD 55 HERITAGE PARK

HOUSTON, TX · ~16,392 people served

Check your exact address → HOUSTON overview

100

Excellent

PurityRadar safety score

PWSID

TX1010678

State

Texas

City

HOUSTON

Population served

16,392

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

Lithium

10,600 ppt

limit —

No federal limit

PFPeA

5.7 ppt

limit —

No federal limit

PFBA

5.2 ppt

limit —

No federal limit

PFHxA

5.1 ppt

limit —

No federal limit

PFBS

3 ppt

limit —

No federal limit

Violations & enforcement

Violations on record

Unaddressed

Health-based

Enforcement actions

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

Max contaminant level (MCL) · Total coliform health-based began May 2012 Resolved

Other · EPA contaminant 7500 began Jun 2011 Resolved

Max contaminant level (MCL) · Total coliform health-based began Apr 2011 Resolved

Monitoring & reporting · EPA contaminant 3014 began Apr 2011 Resolved

Max contaminant level (MCL) · Total coliform health-based began Oct 2004 Resolved

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

Recent enforcement actions

State action · SOX Apr 2015
State action · SOX Aug 2012
State action · SIF Jun 2012
State action · SIA May 2012
State action · SIE May 2012
State action · SOX Nov 2011
State action · SIF Oct 2011
State action · SIA Sep 2011

This profile is built from EPA public records for system TX1010678 — 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.