PARKWAY UTILITY DISTRICT

HOUSTON, TX · ~7,323 people served

Check your exact address → HOUSTON overview

100

Excellent

PurityRadar safety score

PWSID

TX1010750

State

Texas

City

HOUSTON

Population served

7,323

Primary source

Groundwater

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

14,300 ppt

limit —

No federal limit

PFBA

7.6 ppt

limit —

No federal limit

PFPeA

6.7 ppt

limit —

No federal limit

PFHxA

6 ppt

limit —

No federal limit

PFBS

3.1 ppt

limit —

No federal limit

Violations & enforcement

Violations on record

Unaddressed

Health-based

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Sep 2018. Official EPA record →

Max contaminant level (MCL) · Haloacetic acids (HAA5) health-based began Apr 2018 Resolved

Monitoring & reporting · Total coliform began Feb 2004 Resolved

Monitoring & reporting · Total coliform began Jun 2003 Resolved

Monitoring & reporting · Total coliform began May 2003 Resolved

Recent enforcement actions

State action · SOX Sep 2018
State action · SIF Jul 2018
State action · SIA Jun 2018
State action · SIE Jun 2018
State action · SOX Aug 2015
State action · SOX Aug 2015
State action · SIF Jun 2004
State action · SIE Mar 2004

This profile is built from EPA public records for system TX1010750 — 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.