MARION, OH · Seneca County
AQUA OHIO - TIFFIN Water System
Consumer Confidence Report status
AQUA OHIO - TIFFIN must publish a Consumer Confidence Report — the annual drinking water quality report covering calendar year 2026 — by July 1, 2027.
As of August 1, 2026, EPA's federal records show 1 item for AQUA OHIO - TIFFIN that is open and awaiting resolution. None are health-based violations — open items of this kind are most often monitoring or reporting requirements, not water-safety findings.
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)
- OH7400614
- System type
- Community Water System
- Population served
- 20,279
- Service connections
- 8,311
- Ownership
- privately owned
- Water source
- surface water (rivers, lakes, or reservoirs)
AQUA OHIO - TIFFIN is one of 180 community water systems in Ohio in the 10,001 to 100,000 people size category, serving 20,279 people from surface water.
As of August 1, 2026, its federal record holds 8 entries between 1993 and 2019, of which 1 remains open; none are health-based.
None of the 8 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 the Surface Water Treatment Rules, the Consumer Confidence Rule, and inorganic chemicals.
Violation history
Consumer Confidence Report Inadequate Reporting
—Consumer Confidence Rule
December 30, 2019
UnaddressedMaximum Contaminant Level Violation, Average
Health-basedNitrate
December 1, 2002 – December 27, 2002
ResolvedTreatment Technique (SWTR and GWR)
Health-basedSurface Water Treatment Rule
December 1, 1993 – December 31, 1993
ResolvedTreatment Technique (SWTR and GWR)
Health-basedSurface Water Treatment Rule
November 1, 1993 – November 30, 1993
ResolvedTreatment Technique (SWTR and GWR)
Health-basedSurface Water Treatment Rule
October 1, 1993 – October 31, 1993
ResolvedTreatment Technique (SWTR and GWR)
Health-basedSurface Water Treatment Rule
September 1, 1993 – September 30, 1993
ResolvedTreatment Technique (SWTR and GWR)
Health-basedSurface Water Treatment Rule
August 1, 1993 – August 31, 1993
ResolvedTreatment Technique (SWTR and GWR)
Health-basedSurface Water Treatment Rule
July 1, 1993 – July 31, 1993
Resolved
Unaddressed no corrective action on record yetResolved addressed and confirmed by the state
| Period | Violation | Contaminant / rule | Health-based | Status |
|---|---|---|---|---|
| December 30, 2019 | Consumer Confidence Report Inadequate Reporting | Consumer Confidence Rule | — | Unaddressed |
| December 1, 2002 – December 27, 2002 | Maximum Contaminant Level Violation, Average | Nitrate | Health-based | Resolved |
| December 1, 1993 – December 31, 1993 | Treatment Technique (SWTR and GWR) | Surface Water Treatment Rule | Health-based | Resolved |
| November 1, 1993 – November 30, 1993 | Treatment Technique (SWTR and GWR) | Surface Water Treatment Rule | Health-based | Resolved |
| October 1, 1993 – October 31, 1993 | Treatment Technique (SWTR and GWR) | Surface Water Treatment Rule | Health-based | Resolved |
| September 1, 1993 – September 30, 1993 | Treatment Technique (SWTR and GWR) | Surface Water Treatment Rule | Health-based | Resolved |
| August 1, 1993 – August 31, 1993 | Treatment Technique (SWTR and GWR) | Surface Water Treatment Rule | Health-based | Resolved |
| July 1, 1993 – July 31, 1993 | Treatment Technique (SWTR and GWR) | Surface Water Treatment Rule | Health-based | Resolved |
Unaddressed no corrective action on record yetResolved addressed and confirmed by the state
Enforcement actions
- November 10, 2010Federal Compliance achieved3 linked violations
- January 22, 2010Federal Final Administrative Order issued3 linked violations
- December 24, 2002State Violation/Reminder Notice23 linked violations
Common questions
Is AQUA OHIO - TIFFIN required to publish a Consumer Confidence Report?
- Yes. AQUA OHIO - TIFFIN is a community water system, and federal rules (40 CFR 141 Subpart O) require every community water system to publish a Consumer Confidence Report each year.
When is AQUA OHIO - TIFFIN’s next Consumer Confidence Report due?
- AQUA OHIO - TIFFIN’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does AQUA OHIO - TIFFIN have any open drinking water violations on record?
- As of August 1, 2026, EPA's federal records show 1 item for AQUA OHIO - TIFFIN that is open and awaiting resolution. None are health-based violations — open items of this kind are most often monitoring or reporting requirements, not water-safety findings.
What is a Consumer Confidence Report?
- A Consumer Confidence Report (CCR) is the annual drinking water quality report that community water systems must provide to the people they serve. It lists the contaminants detected in the system’s water during the year, where the water comes from, and how the results compare with federal limits. EPA’s revised CCR rule takes effect January 1, 2027, and the first reports in the new format are due July 1, 2027.
Contact
AQUA OHIO INC - TIFFIN
740-383-0939
MARION, OH 43302