Public water system · OH0233612
ActiveDairy Haus
At a glance
Dairy Haus (PWSID OH0233612) is an active transient non-community water system in Allen County, Ohio. It reports serving 150 people through 2 service connections. Its primary water source is groundwater, and EPA lists it as privately owned. EPA's records list 6 violations for this system; 2 are health-based, and the most recent began in May 2021.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
150
Service connections
2
Primary source
GW
Groundwater
System type
TNCWS
Transient non-community water system
System record
How does Dairy Haus compare with other water systems in Allen County?
By EPA's size categories, Dairy Haus is a very small system (500 people or fewer). Allen County has 39 active public water systems. Its population served is well below the county average of 2,324 people per system, and accounts for 0.2% of the 90,630 people reported by systems filed under the county. Across Ohio, the 3,854 active systems average 2,767 people each. Nationally, the average active transient non-community water system reports serving 144 people, so Dairy Haus is roughly in line with that figure.
What does “transient non-community water system” mean?
A transient non-community water system serves places where people do not stay long, such as gas stations and campgrounds, and regularly serves at least 25 people a day for at least 60 days a year. Ohio has 2,282 active transient non-community water systems, 59% 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 Dairy Haus?
EPA lists Dairy Haus 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. 31 of the 39 active systems in Allen County (79%) are also privately owned.
Does Dairy Haus have drinking water violations?
EPA's records list 6 violations for this system; 2 are health-based, and the most recent began in May 2021. The violations listed here began between April 1996 and May 2021. By type: 2 contaminant level above the legal limit, 2 monitoring and reporting, 1 public notice, recordkeeping or other and 1 monitoring. The contaminant or rule involved most often is Total coliform bacteria (TCR) (4 of them). EPA lists 5 as resolved and 1 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. 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 |
|---|---|---|---|---|
| 2021-05-27 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Unaddressed |
| 2021-01-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2004-07-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Acute (TCR) · code 21 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 2004-07-01 | Monitoring and reportingMonitoring, Repeat Major (TCR) · code 25 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2003-07-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 1996-04-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
All 6 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.
Dairy Haus: frequently asked questions
Who runs Dairy Haus?
Dairy Haus (PWSID OH0233612) is a transient non-community water system privately owned. It is regulated by the OH state drinking water program.
How many people does Dairy Haus serve?
Dairy Haus reports serving 150 people through 2 service connections in Allen County, Ohio.
Where does Dairy Haus 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 Dairy Haus have any drinking water violations?
EPA's records list 6 violations for this system; 2 are health-based, and the most recent began in May 2021. 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 Dairy Haus' 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 6 violations for this system; 2 are health-based, and the most recent began in May 2021. For current results, consult EPA ECHO, or the OH state drinking water program.
Where can I find Dairy Haus' water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Dairy Haus is a 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 Allen County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Lima City | Allen | 65,619 | Community | Surface water |
| Delphos City | Allen | 7,101 | Community | Surface water |
| Bluffton Village | Allen | 4,125 | Community | Purchased surface water |
| Elida Village | Allen | 4,109 | Community | Purchased surface water |
| Spencerville Village | Allen | 2,261 | Community | Groundwater |
| Odot Rest Area 1-31 Eb | Allen | 1,000 | Transient non-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, “Dairy Haus, PWSID OH0233612, Ohio”, https://aquacensus.com/water-systems/ohio/dairy-haus-oh0233612 (data as of October 1, 2026).