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Water system · PWSID LA1097012

PLAISANCE WATER SYSTEM

OPELOUSAS, LA · ~6,375 people served

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

PWSID

LA1097012

State

Louisiana

City

OPELOUSAS

Population served

6,375

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

Lithium

16,400 ppt

limit —

No federal limit

Violations & enforcement

15

Violations on record

0

Unaddressed

5

Health-based

48

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Nov 2024. Official EPA record →

Other · EPA contaminant 7000 began Jul 2024 Resolved
Treatment technique · EPA contaminant 0700 health-based began Nov 2018 Resolved
Treatment technique · EPA contaminant 0700 health-based began Nov 2018 Resolved
Other · EPA contaminant 7000 began Oct 2017 Resolved
Monitoring & reporting · Lead & Copper Rule began May 2017 Resolved
Other · EPA contaminant 7500 began Sep 2015 Resolved
Max contaminant level (MCL) · Total coliform health-based began Jul 2015 Resolved
Max contaminant level (MCL) · Total coliform health-based began Oct 2013 Resolved
Monitoring & reporting · Haloacetic acids (HAA5) began Jul 2013 Resolved
Monitoring & reporting · EPA contaminant 0999 began Jul 2013 Resolved
Monitoring & reporting · Total trihalomethanes (TTHM) began Jul 2013 Resolved
Monitoring & reporting · Total coliform began Feb 2013 Resolved

Recent enforcement actions

  • State action · SIA Nov 2024
  • State action · SOX Jul 2024
  • State action · SOX Aug 2020
  • State action · SIF Feb 2019
  • State action · SOX Feb 2019
  • State action · SIE Feb 2019
  • State action · SOX Feb 2019
  • State action · SOX Jan 2019

This profile is built from EPA public records for system LA1097012 — 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.