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Water system · PWSID TX1010884

NORTHWEST HARRIS COUNTY MUD 5

HOUSTON, TX · ~23,766 people served

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

PWSID

TX1010884

State

Texas

City

HOUSTON

Population served

23,766

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

Lithium

79,600 ppt

limit —

No federal limit

PFBA

19 ppt

limit —

No federal limit

PFPeA

12 ppt

limit —

No federal limit

PFHxA

6 ppt

limit —

No federal limit

Violations & enforcement

8

Violations on record

0

Unaddressed

0

Health-based

22

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement May 2022. Official EPA record →

Monitoring & reporting · Total trihalomethanes (TTHM) began Jan 2021 Resolved
Monitoring & reporting · Haloacetic acids (HAA5) began Jan 2021 Resolved
Other · EPA contaminant 7500 began Sep 2003 Resolved
Monitoring & reporting · Total coliform began Jul 2003 Resolved
Monitoring & reporting · Total coliform began Jun 2003 Resolved
Monitoring & reporting · Total coliform began May 2003 Resolved
Other · EPA contaminant 7500 began May 2003 Resolved
Monitoring & reporting · Total coliform began Jan 2003 Resolved

Recent enforcement actions

  • State action · SIF May 2022
  • State action · SOX Jul 2021
  • State action · SIE May 2021
  • State action · SIA May 2021
  • State action · SOX Aug 2015
  • State action · SOX Aug 2015
  • State action · SOX Aug 2015
  • State action · SOX Jan 2011

This profile is built from EPA public records for system TX1010884 — 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.