NILES CITY PWS

NILES, OH · ~21,961 people served

Check your exact address → NILES overview

Excellent

PurityRadar safety score

PWSID

OH7802403

State

Ohio

City

NILES

Population served

21,961

Primary source

SWP

Score history

▼ 12 points — the score moved from 100 to 88 on Jun 18, 2026, as newly published EPA data was incorporated.

Jun 18, 2026 · score 100 Jun 18, 2026 · score 88

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

PFOS

Perfluorooctanesulfonic acid

4.6 ppt

limit 4 ppt

Above EPA limit · 1.1×

PFHxS

Perfluorohexanesulfonic acid

3.6 ppt

limit 10 ppt

Below EPA limit

PFBA

5.9 ppt

limit —

No federal limit

Violations & enforcement

Violations on record

Unaddressed

Health-based

Enforcement actions

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

Other · EPA contaminant 7000 began Jan 2021 Unaddressed

Other · EPA contaminant 7000 began Feb 2020 Unaddressed

Other · EPA contaminant 7000 began Mar 2019 Unaddressed

Other · EPA contaminant 7000 began Jul 2019 Resolved

Other · EPA contaminant 7000 began Jul 2018 Resolved

Max contaminant level (MCL) · Total trihalomethanes (TTHM) health-based began Jul 2004 Resolved

Recent enforcement actions

EPA/federal action · EFJ Apr 2025
State action · SIA Jan 2021
State action · SIA Feb 2020
State action · SOX Sep 2019
State action · SIA Aug 2019
State action · SIA Mar 2019
State action · SOX Oct 2018
State action · SOX Aug 2018

This profile is built from EPA public records for system OH7802403 — 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.