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Water system · PWSID TX1010715

HARRIS COUNTY MUD 26

HOUSTON, TX · ~17,178 people served

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

PWSID

TX1010715

State

Texas

City

HOUSTON

Population served

17,178

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

Lithium

15,700 ppt

limit —

No federal limit

Violations & enforcement

2

Violations on record

1

Unaddressed

0

Health-based

2

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Jun 1993. Official EPA record →

Other · EPA contaminant 7000 began Jul 2025 Unaddressed
Monitoring & reporting · Lead & Copper Rule began Jul 1992 Resolved

Recent enforcement actions

  • State action · SOX Jun 1993
  • State action · SIF Jul 1981

This profile is built from EPA public records for system TX1010715 — 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.