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Water system · PWSID TX1011690

HARRIS COUNTY MUD 70

100
Excellent
PurityRadar safety score

PWSID

TX1011690

State

Texas

City

HOUSTON

Population served

5,763

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

PFHxS

Perfluorohexanesulfonic acid

3.4 ppt

limit 10 ppt

Below EPA limit

PFBA

6.6 ppt

limit —

No federal limit

PFHxA

5.2 ppt

limit —

No federal limit

PFPeA

3.5 ppt

limit —

No federal limit

PFBS

3.4 ppt

limit —

No federal limit

Violations & enforcement

2

Violations on record

1

Unaddressed

0

Health-based

7

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Sep 2006. Official EPA record →

Other · EPA contaminant 7000 began Jul 2025 Unaddressed
Monitoring & reporting · Total coliform began May 2006 Resolved

Recent enforcement actions

  • State action · SIF Sep 2006
  • State action · SIA Jun 2006
  • State action · SIE Jun 2006
  • State action · SOX May 2006
  • State action · SFJ Nov 1984
  • State action · SIF Nov 1984
  • State action · SIF Aug 1981

This profile is built from EPA public records for system TX1011690 — 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.