DAYTON, OH · Montgomery County
MONTGOMERY CO:WATER SYSTEM # 1 Water System
Inactive system
This water system is marked inactive in EPA’s federal records as of March 1, 1991. 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 Montgomery 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)
- OH5701303
- System type
- Community Water System
- Population served
- 150,000
- Service connections
- 43,000
- Ownership
- local government
- Water source
- groundwater (wells)
MONTGOMERY CO:WATER SYSTEM # 1 is among the 16 largest community water systems in Ohio, formerly serving 150,000 people from groundwater.
EPA's federal records list this system as inactive in 1991; the record below is historical.
As of August 1, 2026, EPA's published records contain no violations for this system.
Violation history
No violations on record for this system.
Enforcement actions
- March 19, 1990State Formal Notice of Violation issued6 linked violations
Last known contact on file (system is inactive)
Not on record
513-496-7007
DAYTON, OH 45439