CHIMNEY HILL MUD

HOUSTON, TX · ~5,409 people served

Check your exact address → HOUSTON overview

100

Excellent

PurityRadar safety score

PWSID

TX1010910

State

Texas

City

HOUSTON

Population served

5,409

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

Lithium

17,900 ppt

limit —

No federal limit

PFBA

5 ppt

limit —

No federal limit

PFPeA

4.2 ppt

limit —

No federal limit

PFHxA

4 ppt

limit —

No federal limit

Violations & enforcement

Violations on record

Unaddressed

Health-based

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Jul 2015. Official EPA record →

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

Other · EPA contaminant 0700 began Mar 2011 Resolved

Other · EPA contaminant 7500 began Dec 2009 Resolved

Monitoring & reporting · Total coliform began Aug 2009 Resolved

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

Recent enforcement actions

State action · SOX Jul 2015
State action · SOX May 2014
State action · SIA Jun 2011
State action · SIA Sep 2009
State action · SIE Sep 2009
State action · SOX Aug 2009
State action · SOX Jun 1993
State action · SFJ Feb 1984

This profile is built from EPA public records for system TX1010910 — 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.