THUNDERBIRD UTILITY DISTRICT 1

MISSOURI CITY, TX · ~4,203 people served

Check your exact address → MISSOURI CITY overview

100

Excellent

PurityRadar safety score

PWSID

TX0790033

State

Texas

City

MISSOURI CITY

Population served

4,203

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

Lithium

19,300 ppt

limit —

No federal limit

Violations & enforcement

Violations on record

Unaddressed

Health-based

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Apr 2014. Official EPA record →

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

Monitoring & reporting · Total coliform began May 2007 Resolved

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

Recent enforcement actions

State action · SOX Apr 2014
State action · SIF Sep 2007
State action · SIE Jun 2007
State action · SIA Jun 2007
State action · SOX May 2007
State action · SOX Jun 1993

This profile is built from EPA public records for system TX0790033 — 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.