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Water system · PWSID TX1012913

HARRIS COUNTY MUD 321

HOUSTON, TX · ~882 people served

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

PWSID

TX1012913

State

Texas

City

HOUSTON

Population served

882

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

No PFAS detections are on record for this system from EPA’s UCMR5 monitoring (2023–25). Absence of a detection isn’t a guarantee — not every system was sampled, and this dataset doesn’t cover other contaminants.

Violations & enforcement

11

Violations on record

0

Unaddressed

0

Health-based

26

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Oct 2023. Official EPA record →

Monitoring · Lead & Copper Rule began Jun 2023 Resolved
Monitoring & reporting · Lead & Copper Rule began Mar 2016 Resolved
Other · EPA contaminant 7500 began May 2015 Resolved
Other · EPA contaminant 7500 began Feb 2015 Resolved
Monitoring & reporting · Lead & Copper Rule began Jan 2015 Resolved
Monitoring & reporting · Lead & Copper Rule began Jul 2014 Resolved
Monitoring & reporting · Lead & Copper Rule began Apr 2014 Resolved
Monitoring & reporting · Lead & Copper Rule began Sep 2013 Resolved
Monitoring & reporting · Total trihalomethanes (TTHM) began Jul 2013 Resolved
Monitoring & reporting · Lead & Copper Rule began Jul 2013 Resolved
Monitoring & reporting · Haloacetic acids (HAA5) began Jul 2013 Resolved

Recent enforcement actions

  • State action · SIF Oct 2023
  • State action · SOX Aug 2023
  • State action · SIA Jul 2023
  • State action · SIE Jul 2023
  • State action · SOX May 2016
  • State action · SIA Apr 2016
  • State action · SOX Sep 2015
  • State action · SIF Jun 2015

This profile is built from EPA public records for system TX1012913 — 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.