HARRIS COUNTY FWSD 61

HOUSTON, TX · ~15,400 people served

Check your exact address → HOUSTON overview

100

Excellent

PurityRadar safety score

PWSID

TX1010237

State

Texas

City

HOUSTON

Population served

15,400

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

Lithium

18,400 ppt

limit —

No federal limit

Violations & enforcement

Violations on record

Unaddressed

Health-based

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Feb 2011. Official EPA record →

Monitoring & reporting · EPA contaminant 0999 began Jul 2010 Resolved

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

Recent enforcement actions

State action · SOX Feb 2011
State action · SOX Jun 1993
State action · SFJ May 1987
State action · SIF Dec 1984
State action · SIF Jun 1983
EPA/federal action · EFJ Sep 1980
EPA/federal action · EFJ Jan 1980

This profile is built from EPA public records for system TX1010237 — 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.