Public water system · OH3401612
ActiveMwcd-Tappan Lake Park
At a glance
Mwcd-Tappan Lake Park (PWSID OH3401612) is an active transient non-community water system in Harrison County, Ohio. It reports serving 2,012 people through 70 service connections. Its primary water source is groundwater, and EPA lists it as privately owned. Of the 12 most recent violations in EPA's records, 4 are health-based, and the most recent began in October 2019.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
2,012
Service connections
70
Primary source
GW
Groundwater
System type
TNCWS
Transient non-community water system
System record
How does Mwcd-Tappan Lake Park compare with other water systems in Harrison County?
By EPA's size categories, Mwcd-Tappan Lake Park is a small system (501 to 3,300 people). Harrison County has 28 active public water systems, and Mwcd-Tappan Lake Park is the 3rd-largest of them by population served. Its population served is about 4 times the county average of 499 people per system, and accounts for 14% of the 13,979 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 Mwcd-Tappan Lake Park is about 14 times 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 Mwcd-Tappan Lake Park?
EPA lists Mwcd-Tappan Lake Park 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. 16 of the 28 active systems in Harrison County (57%) are also privately owned.
Does Mwcd-Tappan Lake Park have drinking water violations?
Of the 12 most recent violations in EPA's records, 4 are health-based, and the most recent began in October 2019. The violations listed here began between August 1993 and October 2019. By type: 8 monitoring and reporting and 4 contaminant level above the legal limit. The contaminant or rule involved most often is Total coliform bacteria (TCR) (11 of them). EPA lists 12 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 |
|---|---|---|---|---|
| 2019-10-01 | Monitoring and reportingMonitoring, Source Water (GWR) · code 34 | E. colicode 3014 | No | Resolved |
| 2007-08-01 | Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2006-03-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2005-11-01 | Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2000-07-01 | Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2000-01-01 | Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 1999-10-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 1998-07-01 | Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 1997-01-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 1993-08-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 1993-08-01 | Monitoring and reportingMonitoring, Repeat Major (TCR) · code 25 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 1993-08-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Acute (TCR) · code 21 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
The 12 most recent 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.
Mwcd-Tappan Lake Park: frequently asked questions
Who runs Mwcd-Tappan Lake Park?
Mwcd-Tappan Lake Park (PWSID OH3401612) is a transient non-community water system privately owned. It is regulated by the OH state drinking water program.
How many people does Mwcd-Tappan Lake Park serve?
Mwcd-Tappan Lake Park reports serving 2,012 people through 70 service connections in Harrison County, Ohio.
Where does Mwcd-Tappan Lake Park 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 Mwcd-Tappan Lake Park have any drinking water violations?
Of the 12 most recent violations in EPA's records, 4 are health-based, and the most recent began in October 2019. 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 Mwcd-Tappan Lake Park'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. Of the 12 most recent violations in EPA's records, 4 are health-based, and the most recent began in October 2019. For current results, consult EPA ECHO, or the OH state drinking water program.
Where can I find Mwcd-Tappan Lake Park's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Mwcd-Tappan Lake Park 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 Harrison County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Cadiz Village Pws | Harrison | 3,353 | Community | Surface water |
| Tri-County Water Authority | Harrison | 2,370 | Community | Purchased groundwater |
| Hopedale Village Pws | Harrison | 984 | Community | Purchased surface water |
| Scio Pws | Harrison | 690 | Community | Groundwater |
| Jewett Village | Harrison | 650 | Community | Groundwater |
| Bowerston Village Pws | Harrison | 483 | 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, “Mwcd-Tappan Lake Park, PWSID OH3401612, Ohio”, https://aquacensus.com/water-systems/ohio/mwcd-tappan-lake-park-oh3401612 (data as of October 1, 2026).