Home/ Directory/ LA/ PARISH UTILITIES OF ASCENSION

Water system · PWSID LA1005035

PARISH UTILITIES OF ASCENSION

DONALDSONVILLE, LA · ~9,732 people served

Check your exact address → DONALDSONVILLE overview
89
Excellent
PurityRadar safety score

PWSID

LA1005035

State

Louisiana

City

DONALDSONVILLE

Population served

9,732

Primary source

Surface water

Score history

▼ 11 points — the score moved from 100 to 89 on Jun 18, 2026, as newly published EPA data was incorporated.

Jun 18, 2026 · score 100 Jun 18, 2026 · score 89

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

PFOS

Perfluorooctanesulfonic acid

4.5 ppt

limit 4 ppt

Above EPA limit · 1.1×

Lithium

13,100 ppt

limit —

No federal limit

PFBA

5 ppt

limit —

No federal limit

PFBS

4.7 ppt

limit —

No federal limit

Violations & enforcement

42

Violations on record

1

Unaddressed

27

Health-based

132

Enforcement actions

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

Treatment technique · EPA contaminant 0700 health-based began Jun 2016 Unaddressed
Max contaminant level (MCL) · Total trihalomethanes (TTHM) health-based began Jul 2024 Resolved
Treatment technique · EPA contaminant 0800 health-based began Feb 2018 Resolved
Other · EPA contaminant 7000 began Oct 2017 Resolved
Other · EPA contaminant 7000 began Jul 2017 Resolved
Treatment technique · EPA contaminant 0300 health-based began May 2016 Resolved
Treatment technique · EPA contaminant 0800 health-based began May 2016 Resolved
Treatment technique · EPA contaminant 0800 health-based began Apr 2016 Resolved
Max residual disinfectant · EPA contaminant 1008 health-based began Mar 2016 Resolved
Monitoring & reporting · EPA contaminant 1009 began Mar 2016 Resolved
Monitoring & reporting · EPA contaminant 1009 began Feb 2016 Resolved
Monitoring & reporting · EPA contaminant 1009 began Jan 2016 Resolved

Recent enforcement actions

  • State action · SOX Sep 2025
  • State action · SIF Oct 2024
  • State action · SIA Oct 2024
  • State action · SIE Oct 2024
  • State action · SOX Jun 2019
  • State action · SIF Dec 2018
  • State action · SIE Jun 2018
  • State action · SIA Jun 2018

This profile is built from EPA public records for system LA1005035 — 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.