Home/ Directory/ LA/ UNITED WATER SYSTEM

Water system · PWSID LA1099009

UNITED WATER SYSTEM

ARNAUDVILLE, LA · ~4,446 people served

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

PWSID

LA1099009

State

Louisiana

City

ARNAUDVILLE

Population served

4,446

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

Lithium

11,200 ppt

limit —

No federal limit

Violations & enforcement

35

Violations on record

2

Unaddressed

24

Health-based

106

Enforcement actions

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

Treatment technique · EPA contaminant 0700 health-based began May 2022 Unaddressed
Treatment technique · EPA contaminant 0700 health-based began May 2022 Unaddressed
Max contaminant level (MCL) · Arsenic health-based began Oct 2022 Resolved
Treatment technique · EPA contaminant 0700 health-based began May 2022 Addressed
Monitoring & reporting · Lead & Copper Rule began Feb 2021 Resolved
Max contaminant level (MCL) · Arsenic health-based began Apr 2020 Resolved
Max contaminant level (MCL) · Arsenic health-based began Jan 2020 Resolved
Max contaminant level (MCL) · Arsenic health-based began Oct 2019 Resolved
Max contaminant level (MCL) · Arsenic health-based began Jul 2019 Resolved
Max contaminant level (MCL) · Arsenic health-based began Apr 2019 Resolved
Max contaminant level (MCL) · Arsenic health-based began Jan 2019 Resolved
Max contaminant level (MCL) · Arsenic health-based began Oct 2018 Resolved

Recent enforcement actions

  • State action · SID Apr 2025
  • State action · SID Mar 2025
  • State action · SID Mar 2025
  • State action · SOX Dec 2023
  • State action · SIF Jan 2023
  • State action · SIE Dec 2022
  • State action · SIA Dec 2022
  • State action · SID Dec 2022

This profile is built from EPA public records for system LA1099009 — 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.