Public water system · OH6831112
ActiveNational Trail Local Schools
At a glance
National Trail Local Schools (PWSID OH6831112) is an active non-transient non-community water system in Preble County, Ohio. It reports serving 1,100 people through 1 service connection. Its primary water source is groundwater, and EPA lists it as owned by a local government. EPA's records list 3 violations for this system; 1 is health-based, and the most recent began in January 2005.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
1,100
Service connections
1
Primary source
GW
Groundwater
System type
NTNCWS
Non-transient non-community water system
System record
How does National Trail Local Schools compare with other water systems in Preble County?
By EPA's size categories, National Trail Local Schools is a small system (501 to 3,300 people). Preble County has 28 active public water systems. Its population served is about 13% above the county average of 975 people per system, and accounts for 4% of the 27,293 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 National Trail Local Schools is about 156% above 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 National Trail Local Schools?
EPA lists National Trail Local Schools 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. 12 of the 28 active systems in Preble County (43%) are also owned by a local government.
Does National Trail Local Schools have drinking water violations?
EPA's records list 3 violations for this system; 1 is health-based, and the most recent began in January 2005. The violations listed here began between October 1997 and January 2005. By type: 2 monitoring and reporting and 1 contaminant level above the legal limit. The contaminant or rule involved most often is Total coliform bacteria (TCR) (2 of them). EPA lists 3 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 |
|---|---|---|---|---|
| 2005-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Thalliumcode 1085 | No | Resolved |
| 1999-07-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 1997-10-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
All 3 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.
National Trail Local Schools: frequently asked questions
Who runs National Trail Local Schools?
National Trail Local Schools (PWSID OH6831112) is a non-transient non-community water system owned by a local government. It is regulated by the OH state drinking water program.
How many people does National Trail Local Schools serve?
National Trail Local Schools reports serving 1,100 people through 1 service connection in Preble County, Ohio.
Where does National Trail Local Schools 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 National Trail Local Schools have any drinking water violations?
EPA's records list 3 violations for this system; 1 is health-based, and the most recent began in January 2005. 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 National Trail Local Schools' 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 3 violations for this system; 1 is health-based, and the most recent began in January 2005. For current results, consult EPA ECHO, or the OH state drinking water program.
Where can I find National Trail Local Schools' water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. National Trail Local Schools 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 Preble County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Eaton Public Water System | Preble | 8,400 | Community | Groundwater |
| Lakengren Water Authority | Preble | 2,950 | Community | Groundwater |
| Camden, Village of | Preble | 2,050 | Community | Groundwater |
| Lewisburg Village Pws | Preble | 1,800 | Community | Groundwater |
| Aqua Ohio - Preble County | Preble | 1,748 | Non-transient non-community | Purchased surface water |
| New Paris Village Pws | Preble | 1,681 | 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, “National Trail Local Schools, PWSID OH6831112, Ohio”, https://aquacensus.com/water-systems/ohio/national-trail-local-schools-oh6831112 (data as of October 1, 2026).