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Water system · PWSID LA1001005

VILLAGE OF MERMENTAU WATER SYSTEM

MERMENTAU, LA · ~780 people served

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

PWSID

LA1001005

State

Louisiana

City

MERMENTAU

Population served

780

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

No PFAS detections are on record for this system from EPA’s UCMR5 monitoring (2023–25). Absence of a detection isn’t a guarantee — not every system was sampled, and this dataset doesn’t cover other contaminants.

Violations & enforcement

19

Violations on record

2

Unaddressed

10

Health-based

39

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement May 2023. Official EPA record →

Treatment technique · EPA contaminant 0700 health-based began May 2019 Unaddressed
Treatment technique · EPA contaminant 0700 health-based began May 2019 Unaddressed
Treatment technique · EPA contaminant 0700 health-based began Jan 2022 Resolved
Treatment technique · EPA contaminant 0700 health-based began Jan 2022 Resolved
Treatment technique · EPA contaminant 0700 health-based began Jan 2022 Resolved
Treatment technique · EPA contaminant 0700 health-based began Jan 2022 Resolved
Treatment technique · EPA contaminant 0700 health-based began Jan 2022 Resolved
Other · EPA contaminant 7500 began Jul 2019 Resolved
Max contaminant level (MCL) · Total coliform health-based began Aug 2015 Resolved
Monitoring & reporting · Total coliform began Jan 2015 Resolved
Monitoring & reporting · Haloacetic acids (HAA5) began May 2014 Resolved
Max contaminant level (MCL) · Haloacetic acids (HAA5) health-based began Jan 2014 Resolved

Recent enforcement actions

  • State action · SIF May 2023
  • State action · SOX May 2023
  • State action · SOX Feb 2023
  • State action · SIF Feb 2022
  • State action · SIA Jan 2022
  • State action · SIE Jan 2022
  • State action · SIA Oct 2019
  • State action · SIE Jun 2019

This profile is built from EPA public records for system LA1001005 — 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.