Home/ Directory/ OH/ OBERLIN WATER DEPARTMENT

Water system · PWSID OH4700911

OBERLIN WATER DEPARTMENT

LAGRANGE, OH · ~8,600 people served

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

PWSID

OH4700911

State

Ohio

City

LAGRANGE

Population served

8,600

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 Nov 2023). Levels in parts per trillion (ppt).

PFBA

6.6 ppt

limit —

No federal limit

PFHxA

4.2 ppt

limit —

No federal limit

PFPeA

4.1 ppt

limit —

No federal limit

PFBS

3 ppt

limit —

No federal limit

Violations & enforcement

9

Violations on record

1

Unaddressed

6

Health-based

26

Enforcement actions

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

Other · EPA contaminant 7000 began Sep 2018 Unaddressed
Treatment technique · EPA contaminant 0300 health-based began Mar 2024 Resolved
Max contaminant level (MCL) · Total trihalomethanes (TTHM) health-based began Jan 2017 Resolved
Max contaminant level (MCL) · Total trihalomethanes (TTHM) health-based began Apr 2011 Resolved
Max contaminant level (MCL) · Total trihalomethanes (TTHM) health-based began Jan 2011 Resolved
Treatment technique · EPA contaminant 0200 health-based began May 2005 Resolved
Treatment technique · EPA contaminant 0200 health-based began Jan 2005 Resolved
Monitoring & reporting · Arsenic began Jul 1996 Resolved
Monitoring & reporting · Fluoride began Jul 1996 Resolved

Recent enforcement actions

  • State action · SOX Apr 2024
  • State action · SIF Apr 2024
  • State action · SIE Mar 2024
  • State action · SIA Mar 2024
  • State action · SIA Nov 2018
  • State action · SOX Apr 2017
  • State action · SIF Mar 2017
  • State action · SIA Feb 2017

This profile is built from EPA public records for system OH4700911 — 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.