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Water system · PWSID LA1097010

CITY OF OPELOUSAS WATER SYSTEM

OPELOUSAS, LA · ~20,388 people served

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

PWSID

LA1097010

State

Louisiana

City

OPELOUSAS

Population served

20,388

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

18,300 ppt

limit —

No federal limit

Violations & enforcement

19

Violations on record

1

Unaddressed

8

Health-based

84

Enforcement actions

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

Treatment technique · EPA contaminant 0700 health-based began Apr 2025 Unaddressed
Other · EPA contaminant 7500 began Jul 2024 Resolved
Other · EPA contaminant 7000 began Jul 2024 Resolved
Treatment technique · EPA contaminant 0700 health-based began Jun 2024 Resolved
Treatment technique · EPA contaminant 0700 health-based began Oct 2021 Resolved
Treatment technique · EPA contaminant 0700 health-based began Oct 2021 Resolved
Treatment technique · EPA contaminant 0700 health-based began Oct 2021 Addressed
Treatment technique · EPA contaminant 0700 health-based began Oct 2021 Addressed
Treatment technique · EPA contaminant 0700 health-based began Aug 2019 Addressed
Monitoring & reporting · Lead & Copper Rule began Jun 2018 Resolved
Other · EPA contaminant 7000 began Jul 2016 Resolved
Other · EPA contaminant 7000 began Jul 2015 Resolved

Recent enforcement actions

  • State action · SID Oct 2025
  • State action · SIF Jul 2025
  • State action · SID Jun 2025
  • State action · SOX Jun 2025
  • State action · SIA Apr 2025
  • State action · SIE Apr 2025
  • State action · SOX Feb 2025
  • State action · SIF Feb 2025

This profile is built from EPA public records for system LA1097010 — 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.