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Water system · PWSID TX0310005

LAGUNA MADRE WATER DISTRICT

PORT ISABEL, TX · ~46,674 people served

Check your exact address → PORT ISABEL overview
100
Excellent
PurityRadar safety score

PWSID

TX0310005

State

Texas

City

PORT ISABEL

Population served

46,674

Primary source

Surface water

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

Lithium

41,300 ppt

limit —

No federal limit

PFBA

6.7 ppt

limit —

No federal limit

PFPeA

4.2 ppt

limit —

No federal limit

PFHxA

3.7 ppt

limit —

No federal limit

Violations & enforcement

35

Violations on record

0

Unaddressed

21

Health-based

94

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement May 2020. Official EPA record →

Monitoring & reporting · EPA contaminant 1009 began Sep 2019 Resolved
Monitoring & reporting · Lead & Copper Rule began Dec 2016 Resolved
Max contaminant level (MCL) · Total trihalomethanes (TTHM) health-based began Jul 2015 Resolved
Max contaminant level (MCL) · Total trihalomethanes (TTHM) health-based began Jul 2015 Resolved
Max contaminant level (MCL) · Total trihalomethanes (TTHM) health-based began Apr 2015 Resolved
Max contaminant level (MCL) · Total trihalomethanes (TTHM) health-based began Jan 2015 Resolved
Max contaminant level (MCL) · Total trihalomethanes (TTHM) health-based began Oct 2014 Resolved
Max contaminant level (MCL) · Total coliform health-based began Sep 2014 Resolved
Max contaminant level (MCL) · Total coliform health-based began Aug 2014 Resolved
Treatment technique · EPA contaminant 0300 health-based began Jun 2014 Resolved
Other · EPA contaminant 7500 began Jun 2014 Resolved
Max contaminant level (MCL) · Total coliform health-based began Jun 2014 Resolved

Recent enforcement actions

  • State action · SIF May 2020
  • State action · SIE Jan 2020
  • State action · SIA Jan 2020
  • State action · SOX Nov 2019
  • State action · SOX Jan 2017
  • State action · SIA Jan 2017
  • State action · SFO Feb 2016
  • State action · SIF Jan 2016

This profile is built from EPA public records for system TX0310005 — 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.