ST BERNARD PARISH WATERWORKS

CHALMETTE, LA · ~44,783 people served

Check your exact address → CHALMETTE overview

100

Excellent

PurityRadar safety score

PWSID

LA1087001

State

Louisiana

City

CHALMETTE

Population served

44,783

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

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

Violations on record

Unaddressed

Health-based

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Apr 2018. Official EPA record →

Max contaminant level (MCL) · Haloacetic acids (HAA5) health-based began Apr 2016 Resolved

Max contaminant level (MCL) · Haloacetic acids (HAA5) health-based began Jan 2016 Resolved

Monitoring & reporting · Total trihalomethanes (TTHM) began Sep 2015 Resolved

Monitoring & reporting · Haloacetic acids (HAA5) began Sep 2015 Resolved

Treatment technique · Bromate health-based began Apr 2015 Resolved

Monitoring & reporting · EPA contaminant 0300 began Nov 2014 Resolved

Treatment technique · EPA contaminant 0800 health-based began Sep 2014 Resolved

Monitoring & reporting · EPA contaminant 0600 began Jan 2010 Resolved

Monitoring & reporting · Total trihalomethanes (TTHM) began Oct 2008 Resolved

Monitoring & reporting · Haloacetic acids (HAA5) began Oct 2008 Resolved

Treatment technique · Bromate health-based began Apr 2008 Resolved

Treatment technique · Bromate health-based began Jan 2008 Resolved

Recent enforcement actions

State action · SID Apr 2018
State action · SOX Nov 2017
State action · SOX May 2017
State action · SIF Sep 2016
State action · SIE Aug 2016
State action · SIA Aug 2016
State action · SFL Jul 2016
State action · SOX Jul 2016

This profile is built from EPA public records for system LA1087001 — 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.