HAMILTON, OH · Butler County
BUTLER CO. WATER DISTRICT 2 PWS Water System
Consumer Confidence Report status
BUTLER CO. WATER DISTRICT 2 PWS 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 no open violations for BUTLER CO. WATER DISTRICT 2 PWS.
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)
- OH0900303
- System type
- Community Water System
- Population served
- 116,572
- Service connections
- 43,457
- Ownership
- local government
- Water source
- surface water (rivers, lakes, or reservoirs)
BUTLER CO. WATER DISTRICT 2 PWS is among the 23 largest community water systems in Ohio, serving 116,572 people from surface water.
As of August 1, 2026, its federal record holds 2 entries between 1997 and 2021, all of which EPA lists as closed. Nothing has been added since 2021.
Of the 2, 1 are monitoring and reporting requirements — the category that accounts for about four in five of all violations in EPA's national dataset — rather than findings about the water itself. The record involves the Stage 2 Disinfectants and Disinfection Byproducts Rule and the Total Coliform Rules.
Violation history
Monitoring and Reporting (DBP)
—Total Haloacetic Acids (HAA5)
October 1, 2021 – December 31, 2021
ResolvedMaximum Contaminant Level Violation, Acute (TCR)
Health-basedColiform (TCR)
August 1, 1997 – August 31, 1997
Resolved
Resolved addressed and confirmed by the state
| Period | Violation | Contaminant / rule | Health-based | Status |
|---|---|---|---|---|
| October 1, 2021 – December 31, 2021 | Monitoring and Reporting (DBP) | Total Haloacetic Acids (HAA5) | — | Resolved |
| August 1, 1997 – August 31, 1997 | Maximum Contaminant Level Violation, Acute (TCR) | Coliform (TCR) | Health-based | Resolved |
Resolved addressed and confirmed by the state
Enforcement actions
- December 16, 1987State Formal Notice of Violation issuedgeneral compliance action — not tied to a specific violation on record
Common questions
Is BUTLER CO. WATER DISTRICT 2 PWS required to publish a Consumer Confidence Report?
- Yes. BUTLER CO. WATER DISTRICT 2 PWS 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 BUTLER CO. WATER DISTRICT 2 PWS’s next Consumer Confidence Report due?
- BUTLER CO. WATER DISTRICT 2 PWS’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does BUTLER CO. WATER DISTRICT 2 PWS have any open drinking water violations on record?
- As of August 1, 2026, EPA's federal records show no open violations for BUTLER CO. WATER DISTRICT 2 PWS.
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
DAY, BRANDI
513-887-3929
HAMILTON, OH 45011