SOUTHERN WATER

HOUSTON, TX · ~3,933 people served

Check your exact address → HOUSTON overview

100

Excellent

PurityRadar safety score

PWSID

TX1010012

State

Texas

City

HOUSTON

Population served

3,933

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 2024). Levels in parts per trillion (ppt).

Lithium

18,200 ppt

limit —

No federal limit

Violations & enforcement

Violations on record

Unaddressed

Health-based

Enforcement actions

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

Monitoring & reporting · EPA contaminant 0999 began Apr 2018 Resolved

Monitoring & reporting · EPA contaminant 0999 began Apr 2015 Resolved

Monitoring & reporting · Lead & Copper Rule began Dec 2013 Resolved

Monitoring & reporting · EPA contaminant 0999 began Oct 2008 Resolved

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

Recent enforcement actions

State action · SIF Dec 2018
State action · SOX Oct 2018
State action · SIE Oct 2018
State action · SIA Oct 2018
State action · SOX Jan 2016
State action · SIF Nov 2015
State action · SIA Oct 2015
State action · SIE Oct 2015

This profile is built from EPA public records for system TX1010012 — 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.