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Water system · PWSID LA1099004

ST MARTIN WATER DISTRICT 4 - CATAHOULA

ST. MARTINVILLE, LA · ~3,000 people served

Check your exact address → ST. MARTINVILLE overview
100
Excellent
PurityRadar safety score

PWSID

LA1099004

State

Louisiana

City

ST. MARTINVILLE

Population served

3,000

Primary source

GWP

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

33

Violations on record

1

Unaddressed

13

Health-based

93

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Apr 2025. Official EPA record →

Monitoring & reporting · Lead & Copper Rule began Jan 2021 Unaddressed
Max contaminant level (MCL) · Arsenic health-based began Jul 2022 Resolved
Max contaminant level (MCL) · Lead & Copper Rule health-based began Jun 2020 Resolved
Treatment technique · Lead & Copper Rule health-based began Sep 2018 Resolved
Other · EPA contaminant 7000 began Oct 2017 Resolved
Other · EPA contaminant 7000 began Oct 2015 Resolved
Other · EPA contaminant 7500 began Mar 2014 Resolved
Other · EPA contaminant 7000 began Oct 2013 Resolved
Monitoring & reporting · Haloacetic acids (HAA5) began Jan 2013 Resolved
Monitoring & reporting · Total trihalomethanes (TTHM) began Jan 2013 Resolved
Other · EPA contaminant 7500 began Oct 2012 Resolved
Max contaminant level (MCL) · Total coliform health-based began Aug 2012 Resolved

Recent enforcement actions

  • State action · SID Apr 2025
  • State action · SOX Jul 2023
  • State action · SIF Jun 2023
  • State action · SOX May 2023
  • State action · SIF Oct 2022
  • State action · SIE Oct 2022
  • State action · SIA Oct 2022
  • State action · SID May 2021

This profile is built from EPA public records for system LA1099004 — 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.