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Water system · PWSID TX0790230

FIRST COLONY MUD 9

HOUSTON, TX · ~7,818 people served

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

PWSID

TX0790230

State

Texas

City

HOUSTON

Population served

7,818

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

Lithium

17,600 ppt

limit —

No federal limit

Violations & enforcement

1

Violations on record

0

Unaddressed

0

Health-based

4

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Sep 2007. Official EPA record →

Monitoring & reporting · Total coliform began May 2007 Resolved

Recent enforcement actions

  • State action · SIF Sep 2007
  • State action · SIE Jun 2007
  • State action · SIA Jun 2007
  • State action · SOX May 2007

This profile is built from EPA public records for system TX0790230 — 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.