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Water system · PWSID TX1010429

CNP UTILITY DISTRICT

HOUSTON, TX · ~14,718 people served

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

PWSID

TX1010429

State

Texas

City

HOUSTON

Population served

14,718

Primary source

SWP

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 May 2025). Levels in parts per trillion (ppt).

Lithium

28,600 ppt

limit —

No federal limit

PFPeA

6.1 ppt

limit —

No federal limit

PFBA

5 ppt

limit —

No federal limit

PFHxA

4.4 ppt

limit —

No federal limit

Violations & enforcement

1

Violations on record

0

Unaddressed

1

Health-based

6

Enforcement actions

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

Max contaminant level (MCL) · Total coliform health-based began Aug 2003 Resolved

Recent enforcement actions

  • State action · SIF Jan 2011
  • State action · SIF Oct 2003
  • State action · SIA Sep 2003
  • State action · SIE Sep 2003
  • State action · SOX Aug 2003
  • EPA/federal action · EFJ Sep 1980

This profile is built from EPA public records for system TX1010429 — 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.