HOUSTON RIVER WATERWORKS DISTRICT 11

SULPHUR, LA · ~6,915 people served

Check your exact address → SULPHUR overview

100

Excellent

PurityRadar safety score

PWSID

LA1019119

State

Louisiana

City

SULPHUR

Population served

6,915

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 Dec 2024). Levels in parts per trillion (ppt).

Lithium

15,300 ppt

limit —

No federal limit

Violations & enforcement

Violations on record

Unaddressed

Health-based

Enforcement actions

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

Treatment technique · EPA contaminant 0700 health-based began Oct 2023 Resolved

Max contaminant level (MCL) · Total trihalomethanes (TTHM) health-based began Apr 2005 Resolved

Max contaminant level (MCL) · Haloacetic acids (HAA5) health-based began Apr 2005 Resolved

Max contaminant level (MCL) · Total trihalomethanes (TTHM) health-based began Jan 2005 Resolved

Max contaminant level (MCL) · Haloacetic acids (HAA5) health-based began Jan 2005 Resolved

Recent enforcement actions

State action · SOX Feb 2024
State action · SIF Oct 2023
State action · SIA Oct 2023
State action · SIE Oct 2023
State action · SOX Mar 2006
State action · SIF Feb 2006
State action · SIE Aug 2005
State action · SIA Aug 2005

This profile is built from EPA public records for system LA1019119 — 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.