Public water system · OH5701212
ActiveMiamisburg City Pws
At a glance
Miamisburg City Pws (PWSID OH5701212) is an active community water system in Montgomery County, Ohio. It reports serving 19,790 people through 7,779 service connections. Its primary water source is groundwater, and EPA lists it as owned by a local government. EPA's records list 4 violations for this system; none is health-based, and the most recent began in November 2025.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
19,790
Service connections
7,779
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Miamisburg City Pws compare with other water systems in Montgomery County?
By EPA's size categories, Miamisburg City Pws is a large system (10,001 to 100,000 people). Montgomery County has 69 active public water systems, and Miamisburg City Pws is the 5th-largest of them by population served. Its population served is about 161% above the county average of 7,574 people per system, and accounts for 3.8% of the 522,570 people reported by systems filed under the county. Across Ohio, the 3,854 active systems average 2,767 people each. Nationally, the average active community water system reports serving 6,703 people, so Miamisburg City Pws is about 195% above that figure.
What does “community water system” mean?
A community water system serves at least 15 connections used by year-round residents, or regularly serves at least 25 year-round residents. Homes, apartments and mobile-home parks are served by these. Ohio has 1,028 active community water systems, 27% of the state's 3,854 active systems. Groundwater means the system draws its water from wells or springs fed by underground aquifers. 3,446 Ohio systems (89%) list groundwater as their primary source.
Who owns and regulates Miamisburg City Pws?
EPA lists Miamisburg City Pws as owned by a local government. The OH state drinking water program is its primacy agency, the regulator with primary enforcement responsibility for the system under the Safe Drinking Water Act. 21 of the 69 active systems in Montgomery County (30%) are also owned by a local government.
Does Miamisburg City Pws have drinking water violations?
EPA's records list 4 violations for this system; none is health-based, and the most recent began in November 2025. The violations listed here began between July 2003 and November 2025. By type: 3 public notice, recordkeeping or other and 1 monitoring and reporting. The contaminant or rule involved most often is Consumer Confidence Rule (3 of them). EPA lists 2 as unaddressed and 2 as resolved. Unaddressed means the violation is not resolved or archived and is not yet covered by formal enforcement. Resolved means at least one resolving action is on record: the system returned to compliance, the rule no longer applies, or no further action was needed.
| Began | Violation | Contaminant or rule | Health-based | Status |
|---|---|---|---|---|
| 2025-11-13 | Public notice, recordkeeping or otherConsumer Confidence Report Inadequate Reporting · code 72 | Consumer Confidence Rulecode 7000 | No | Unaddressed |
| 2024-12-18 | Public notice, recordkeeping or otherConsumer Confidence Report Inadequate Reporting · code 72 | Consumer Confidence Rulecode 7000 | No | Resolved |
| 2020-01-21 | Public notice, recordkeeping or otherConsumer Confidence Report Inadequate Reporting · code 72 | Consumer Confidence Rulecode 7000 | No | Unaddressed |
| 2003-07-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Haloacetic acids (HAA5)code 2456 | No | Resolved |
All 4 violations in EPA's records, newest first.Labels and codes come from EPA's SDWIS reference tables. A monitoring or reporting violation means a required test or report was missed or late; it does not by itself mean a contaminant was found. "Health-based" marks violations of a legal limit or required treatment.
Miamisburg City Pws: frequently asked questions
Who runs Miamisburg City Pws?
Miamisburg City Pws (PWSID OH5701212) is a community water system owned by a local government. It is regulated by the OH state drinking water program.
How many people does Miamisburg City Pws serve?
Miamisburg City Pws reports serving 19,790 people through 7,779 service connections in Montgomery County, Ohio.
Where does Miamisburg City Pws get its water?
EPA SDWIS lists this system's primary water source as groundwater. Groundwater means the system draws its water from wells or springs fed by underground aquifers.
Does Miamisburg City Pws have any drinking water violations?
EPA's records list 4 violations for this system; none is health-based, and the most recent began in November 2025. A monitoring or reporting violation means a required test or report was missed or late; it does not by itself mean a contaminant was found.
Is Miamisburg City Pws' water safe to drink?
AquaCensus shows EPA compliance records, not current water test results, so it cannot say whether the water is safe at a given moment. EPA's records list 4 violations for this system; none is health-based, and the most recent began in November 2025. For current results, consult the system's annual water quality report, EPA ECHO, or the OH state drinking water program.
Where can I find Miamisburg City Pws' water quality report?
As a community water system, Miamisburg City Pws must deliver an annual water quality report, called a Consumer Confidence Report, to its customers by July 1 each year, covering the previous calendar year. The system can provide a copy on request.
Other water systems in Montgomery County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Montgomery County Water Services 1 Pws | Montgomery | 150,207 | Community | Purchased surface water |
| Dayton Public Water System | Montgomery | 141,407 | Community | Surface water |
| Montgomery County Water Services 2 Pws | Montgomery | 83,033 | Community | Purchased surface water |
| Huber Heights Public Water System | Montgomery | 43,439 | Community | Groundwater |
| Englewood City Pws | Montgomery | 13,463 | Community | Groundwater |
| Oakwood City Pws | Montgomery | 9,572 | Community | Groundwater |
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About this data
Source: U.S. EPA Safe Drinking Water Information System (SDWIS) and SDWA violation records, via EPA ECHO, as published October 1, 2026 — AquaCensus refreshes it quarterly. See the methodology for how records are matched, cleaned and scored.
Cite as: AquaCensus, “Miamisburg City Pws, PWSID OH5701212, Ohio”, https://aquacensus.com/water-systems/ohio/miamisburg-city-pws-oh5701212 (data as of October 1, 2026).