PATTERSON WATER SYSTEM

PATTERSON, LA · ~8,456 people served

Check your exact address → PATTERSON overview

100

Excellent

PurityRadar safety score

PWSID

LA1101006

State

Louisiana

City

PATTERSON

Population served

8,456

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

Latest detections from EPA’s UCMR5 monitoring (through Oct 2024). Levels in parts per trillion (ppt).

PFBA

5.9 ppt

limit —

No federal limit

PFPeA

3.2 ppt

limit —

No federal limit

Violations & enforcement

Violations on record

Unaddressed

Health-based

Enforcement actions

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

Other · EPA contaminant 7500 began Apr 2025 Resolved

Max contaminant level (MCL) · Total coliform health-based began Feb 2010 Resolved

Max contaminant level (MCL) · Total coliform health-based began Jan 2010 Resolved

Other · EPA contaminant 7000 began Jul 2008 Resolved

Other · EPA contaminant 7000 began Jul 2004 Resolved

Treatment technique · EPA contaminant 0200 health-based began Jan 1994 Resolved

Monitoring & reporting · Lead & Copper Rule began Jul 1992 Resolved

Recent enforcement actions

State action · SOX Aug 2025
State action · SIF Mar 2010
State action · SOX Mar 2010
State action · SOX Mar 2010
State action · SIF Mar 2010
State action · SIE Mar 2010
State action · SIA Mar 2010
State action · SIA Feb 2010

This profile is built from EPA public records for system LA1101006 — 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.