TIFFIN, OH · Seneca County

OHIO-AMER.WATER CO,TIFFIN DIST Water System

Inactive system

This water system is marked inactive in EPA’s federal records as of September 1, 1990. It is no longer an operating public water system under this PWSID, and no compliance deadlines — including the 2027 Consumer Confidence Report rule — apply to it.

If you are a resident looking for your current water provider, see water systems in Seneca County, OH.

Data sourced from the EPA ECHO database (SDWA bulk download), last refreshed July 4, 2026. This is a record-keeping and public-information tool — it does not replace Ohio’s official records. Always confirm current status with Ohio before making decisions based on this information.

System facts

System ID (PWSID): OH7400611
System type: Community Water System
Population served: 21,000
Service connections: 6,060
Ownership: privately owned
Water source: surface water (rivers, lakes, or reservoirs)

Violation history

Maximum Contaminant Level Violation, Single Sample
Health-based
Nitrate
June 1, 1986 – June 30, 1986
Archived
Maximum Contaminant Level Violation, Single Sample
Health-based
Nitrate
May 1, 1986 – May 31, 1986
Archived
Maximum Contaminant Level Violation, Single Sample
Health-based
Nitrate
October 1, 1984 – September 30, 1985
Resolved

Archived closed in EPA's records (typically due to age or a data correction)Resolved addressed and confirmed by the state

Period	Violation	Contaminant / rule	Health-based	Status
June 1, 1986 – June 30, 1986	Maximum Contaminant Level Violation, Single Sample	Nitrate	Health-based	Archived
May 1, 1986 – May 31, 1986	Maximum Contaminant Level Violation, Single Sample	Nitrate	Health-based	Archived
October 1, 1984 – September 30, 1985	Maximum Contaminant Level Violation, Single Sample	Nitrate	Health-based	Resolved

Archived closed in EPA's records (typically due to age or a data correction)Resolved addressed and confirmed by the state

Enforcement actions

June 12, 1986State Public Notification received1 linked violation
May 23, 1986State Public Notification received1 linked violation
September 12, 1985State Technical Assistance Visitgeneral compliance action — not tied to a specific violation on record
June 11, 1985State Public Notification receivedgeneral compliance action — not tied to a specific violation on record

Last known contact on file (system is inactive)

Not on record

419-447-5532

TIFFIN, OH 44883