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 August 1, 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)
OHIO-AMER.WATER CO,TIFFIN DIST is one of 180 community water systems in Ohio in the 10,001 to 100,000 people size category, formerly serving 21,000 people from surface water.
EPA's federal records list this system as inactive in 1990; the record below is historical.
As of August 1, 2026, its federal record holds 3 entries between 1984 and 1986, all of which EPA lists as closed. Nothing has been added since 1986.
None of the 3 are monitoring or reporting requirements — the category that accounts for about four in five of all violations in EPA's national dataset; these involve water-quality, treatment, or public-notice findings instead. The record involves inorganic chemicals.
Violation history
Maximum Contaminant Level Violation, Single Sample
Health-basedNitrate
June 1, 1986 – June 30, 1986
ArchivedMaximum Contaminant Level Violation, Single Sample
Health-basedNitrate
May 1, 1986 – May 31, 1986
ArchivedMaximum Contaminant Level Violation, Single Sample
Health-basedNitrate
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 30, 1985State Public Notification received549 linked violations
- 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