Public water system · OH5701315
ActiveMontgomery County Water Services 1 Pws
At a glance
Montgomery County Water Services 1 Pws (PWSID OH5701315) is an active community water system in Montgomery County, Ohio. It reports serving 150,207 people through 52,435 service connections. Its primary water source is purchased surface water, and EPA lists it as owned by a local government. EPA's records list 8 violations for this system; 4 are health-based, and the most recent began in April 2020.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
150,207
Service connections
52,435
Primary source
SWP
Purchased surface water
System type
CWS
Community water system
System record
How does Montgomery County Water Services 1 Pws compare with other water systems in Montgomery County?
By EPA's size categories, Montgomery County Water Services 1 Pws is a very large system (more than 100,000 people). Montgomery County has 69 active public water systems, and Montgomery County Water Services 1 Pws is the largest of them by population served. Its population served is about 20 times the county average of 7,574 people per system, and accounts for 29% 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 Montgomery County Water Services 1 Pws is about 22 times 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. Purchased surface water means the system buys surface water from another public water system rather than drawing its own. 191 Ohio systems (5%) list purchased surface water as their primary source.
Who owns and regulates Montgomery County Water Services 1 Pws?
EPA lists Montgomery County Water Services 1 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 Montgomery County Water Services 1 Pws have drinking water violations?
EPA's records list 8 violations for this system; 4 are health-based, and the most recent began in April 2020. The violations listed here began between November 1994 and April 2020. By type: 4 monitoring and reporting, 2 required treatment not met and 2 contaminant level above the legal limit. The contaminant or rule involved most often is Lead and Copper Rule (4 of them). EPA lists 8 as resolved. 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 |
|---|---|---|---|---|
| 2020-04-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Haloacetic acids (HAA5)code 2456 | No | Resolved |
| 2020-04-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Total trihalomethanes (TTHM)code 2950 | No | Resolved |
| 2017-07-01 | Required treatment not metWQP Entry Point/Tap Treatment Technique Non-Compliance · code 59 | Lead and Copper Rulecode 5000 | Yes | Resolved |
| 2017-07-01 | Monitoring and reportingWater Quality Parameter M/R · code 53 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2017-01-01 | Required treatment not metWQP Entry Point/Tap Treatment Technique Non-Compliance · code 59 | Lead and Copper Rulecode 5000 | Yes | Resolved |
| 2017-01-01 | Monitoring and reportingWater Quality Parameter M/R · code 53 | Lead and Copper Rulecode 5000 | No | Resolved |
| 1997-11-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Acute (TCR) · code 21 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 1994-11-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Acute (TCR) · code 21 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
All 8 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.
Montgomery County Water Services 1 Pws: frequently asked questions
Who runs Montgomery County Water Services 1 Pws?
Montgomery County Water Services 1 Pws (PWSID OH5701315) is a community water system owned by a local government. It is regulated by the OH state drinking water program.
How many people does Montgomery County Water Services 1 Pws serve?
Montgomery County Water Services 1 Pws reports serving 150,207 people through 52,435 service connections in Montgomery County, Ohio.
Where does Montgomery County Water Services 1 Pws get its water?
EPA SDWIS lists this system's primary water source as purchased surface water. Purchased surface water means the system buys surface water from another public water system rather than drawing its own.
Does Montgomery County Water Services 1 Pws have any drinking water violations?
EPA's records list 8 violations for this system; 4 are health-based, and the most recent began in April 2020. 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 Montgomery County Water Services 1 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 8 violations for this system; 4 are health-based, and the most recent began in April 2020. For current results, consult the system's annual water quality report, EPA ECHO, or the OH state drinking water program.
Where can I find Montgomery County Water Services 1 Pws' water quality report?
As a community water system, Montgomery County Water Services 1 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 |
|---|---|---|---|---|
| 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 |
| Miamisburg City Pws | Montgomery | 19,790 | 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, “Montgomery County Water Services 1 Pws, PWSID OH5701315, Ohio”, https://aquacensus.com/water-systems/ohio/montgomery-county-water-services-1-pws-oh5701315 (data as of October 1, 2026).