Public water system · OH4940512
ActiveMonroe Elementary School
At a glance
Monroe Elementary School (PWSID OH4940512) is an active non-transient non-community water system in Madison County, Ohio. It reports serving 287 people through 1 service connection. Its primary water source is groundwater, and EPA lists it as privately owned. EPA's records list 11 violations for this system; 1 is health-based, and the most recent began in January 2026.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
287
Service connections
1
Primary source
GW
Groundwater
System type
NTNCWS
Non-transient non-community water system
System record
How does Monroe Elementary School compare with other water systems in Madison County?
By EPA's size categories, Monroe Elementary School is a very small system (500 people or fewer). Madison County has 53 active public water systems. Its population served is about 64% below the county average of 798 people per system, and accounts for 0.7% of the 42,314 people reported by systems filed under the county. Across Ohio, the 3,854 active systems average 2,767 people each. Nationally, the average active non-transient non-community water system reports serving 430 people, so Monroe Elementary School is about 33% below that figure.
What does “non-transient non-community water system” mean?
A non-transient non-community water system regularly serves at least 25 of the same people for more than six months a year, but not where they live. Schools, factories, office buildings and hospitals with their own supply are typical examples. Ohio has 544 active non-transient non-community water systems, 14% 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 Monroe Elementary School?
EPA lists Monroe Elementary School as privately owned. 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. 46 of the 53 active systems in Madison County (87%) are also privately owned.
Does Monroe Elementary School have drinking water violations?
EPA's records list 11 violations for this system; 1 is health-based, and the most recent began in January 2026. The violations listed here began between July 1995 and January 2026. By type: 6 monitoring and reporting, 2 public notice, recordkeeping or other, 2 monitoring and 1 contaminant level above the legal limit. The contaminant or rule involved most often is Public Notice (2 of them). EPA lists 7 as resolved, 2 as archived and 2 as unaddressed. 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. Archived means the violation was not marked resolved but is more than five years past the end of the noncompliance period, so it no longer counts toward current compliance status. Unaddressed means the violation is not resolved or archived and is not yet covered by formal enforcement.
| Began | Violation | Contaminant or rule | Health-based | Status |
|---|---|---|---|---|
| 2026-01-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Total trihalomethanes (TTHM)code 2950 | Yes | Archived |
| 2022-09-29 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Unaddressed |
| 2022-07-01 | MonitoringMonitoring, Additional Routine (RTCR) · code 3B | Revised Total Coliform Rulecode 8000 | No | Archived |
| 2021-09-07 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Unaddressed |
| 2021-04-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2021-04-01 | Monitoring and reportingMonitoring, Regular · code 03 | Arseniccode 1005 | No | Resolved |
| 2016-12-21 | Monitoring and reportingMonitoring, Source Water (GWR) · code 34 | E. colicode 3014 | No | Resolved |
| 2007-07-01 | Monitoring and reportingInitial Tap Sampling for Pb and Cu · code 51 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2004-07-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 1995-10-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 1995-07-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | No | Resolved |
All 11 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.
Monroe Elementary School: frequently asked questions
Who runs Monroe Elementary School?
Monroe Elementary School (PWSID OH4940512) is a non-transient non-community water system privately owned. It is regulated by the OH state drinking water program.
How many people does Monroe Elementary School serve?
Monroe Elementary School reports serving 287 people through 1 service connection in Madison County, Ohio.
Where does Monroe Elementary School 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 Monroe Elementary School have any drinking water violations?
EPA's records list 11 violations for this system; 1 is health-based, and the most recent began in January 2026. 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 Monroe Elementary School's 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 11 violations for this system; 1 is health-based, and the most recent began in January 2026. For current results, consult EPA ECHO, or the OH state drinking water program.
Where can I find Monroe Elementary School's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Monroe Elementary School is a non-transient non-community water system, so it is not required to publish one; like every public water system, it must notify the people it serves about violations under EPA's public notification rules.
Other water systems in Madison County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Mid-Ohio Wsd - Chrisman Avenue WTP | Madison | 10,256 | Community | Groundwater |
| Mid-Ohio Wsd - Old Springfield Road WTP | Madison | 5,176 | Community | Groundwater |
| West Jefferson Village Pws | Madison | 4,488 | Community | Groundwater |
| Mid-Ohio Wsd - Jackson Street WTP | Madison | 4,467 | Community | Groundwater |
| Travel Centers of America | Madison | 2,490 | Non-transient non-community | Groundwater |
| Choctaw Utilities, Inc.. | Madison | 2,200 | 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, “Monroe Elementary School, PWSID OH4940512, Ohio”, https://aquacensus.com/water-systems/ohio/monroe-elementary-school-oh4940512 (data as of October 1, 2026).