MID-OHIO WSD PLAIN CITY WTP

COLUMBUS, OH · ~4,467 people served

Check your exact address → COLUMBUS overview

100

Excellent

PurityRadar safety score

PWSID

OH4901112

State

Ohio

City

COLUMBUS

Population served

4,467

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

Lithium

27,000 ppt

limit —

No federal limit

Violations & enforcement

Violations on record

Unaddressed

Health-based

Enforcement actions

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

Other · EPA contaminant 7000 began Dec 2025 Unaddressed

Reporting · EPA contaminant 5200 began Jul 2025 Unaddressed

Other · EPA contaminant 7000 began Jan 2023 Unaddressed

Other · EPA contaminant 7000 began Jan 2020 Unaddressed

Monitoring · Lead & Copper Rule began Jan 2021 Resolved

Monitoring & reporting · Haloacetic acids (HAA5) began Jan 2013 Resolved

Monitoring & reporting · Total trihalomethanes (TTHM) began Jan 2013 Resolved

Monitoring & reporting · Total coliform began Jan 2010 Resolved

Monitoring & reporting · Total coliform began Aug 2008 Resolved

Monitoring & reporting · Antimony began Jul 2003 Resolved

Monitoring & reporting · Cadmium began Jul 2003 Resolved

Monitoring & reporting · Arsenic began Jul 2003 Resolved

Recent enforcement actions

State action · SIA Dec 2025
State action · SIE Oct 2025
State action · SIA Oct 2025
State action · SIF Feb 2022
State action · SIE Feb 2021
State action · SIA Feb 2021
State action · SOX Feb 2021
State action · SIA Jan 2020

This profile is built from EPA public records for system OH4901112 — 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.