HARRIS COUNTY MUD 412

HOUSTON, TX · ~3,480 people served

Check your exact address → HOUSTON overview

100

Excellent

PurityRadar safety score

PWSID

TX1013354

State

Texas

City

HOUSTON

Population served

3,480

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

20,000 ppt

limit —

No federal limit

PFPeA

5.9 ppt

limit —

No federal limit

PFBA

5.4 ppt

limit —

No federal limit

PFHxA

4.2 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 Jan 2019. Official EPA record →

Other · EPA contaminant 7000 began Jul 2018 Resolved

Other · EPA contaminant 7500 began Feb 2014 Resolved

Monitoring & reporting · Total trihalomethanes (TTHM) began Apr 2012 Resolved

Monitoring & reporting · Haloacetic acids (HAA5) began Apr 2012 Resolved

Recent enforcement actions

State action · SOX Jan 2019
State action · SIA Jan 2019
State action · SIA Jan 2019
State action · SIA Apr 2014
State action · SIF Feb 2014
State action · SOX Feb 2014
State action · SIA Nov 2013
State action · SIE Nov 2013

This profile is built from EPA public records for system TX1013354 — 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.