Public water system · OH5253012
ActiveWillow Lake Park
At a glance
Willow Lake Park (PWSID OH5253012) is an active transient non-community water system in Medina County, Ohio. It reports serving 150 people through 212 service connections. Its primary water source is groundwater, and EPA lists it as privately owned. EPA's records list 9 violations for this system; 1 is health-based, and the most recent began in May 2021.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
150
Service connections
212
Primary source
GW
Groundwater
System type
TNCWS
Transient non-community water system
System record
How does Willow Lake Park compare with other water systems in Medina County?
By EPA's size categories, Willow Lake Park is a very small system (500 people or fewer). Medina County has 55 active public water systems. Its population served is well below the county average of 1,223 people per system, and accounts for 0.2% of the 67,274 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 Willow Lake Park 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 Willow Lake Park?
EPA lists Willow 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. 47 of the 55 active systems in Medina County (85%) are also privately owned.
Does Willow Lake Park have drinking water violations?
EPA's records list 9 violations for this system; 1 is health-based, and the most recent began in May 2021. The violations listed here began between April 1996 and May 2021. By type: 5 monitoring and reporting, 2 reporting, 1 required treatment not met and 1 monitoring. The contaminant or rule involved most often is Revised Total Coliform Rule (4 of them). EPA lists 9 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 |
|---|---|---|---|---|
| 2021-05-02 | ReportingReport Startup Procedures Cert Form (RTCR) · code 4C | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2019-05-02 | ReportingReport Startup Procedures Cert Form (RTCR) · code 4C | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2018-05-01 | Required treatment not metTreatment Technique Startup Procedures (RTCR) · code 2D | Revised Total Coliform Rulecode 8000 | Yes | Resolved |
| 2016-04-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2006-10-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 1997-07-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | No | Resolved |
| 1997-04-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 1996-07-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | No | Resolved |
| 1996-04-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
All 9 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.
Willow Lake Park: frequently asked questions
Who runs Willow Lake Park?
Willow Lake Park (PWSID OH5253012) is a transient non-community water system privately owned. It is regulated by the OH state drinking water program.
How many people does Willow Lake Park serve?
Willow Lake Park reports serving 150 people through 212 service connections in Medina County, Ohio.
Where does Willow 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 Willow Lake Park have any drinking water violations?
EPA's records list 9 violations for this system; 1 is 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 Willow 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. EPA's records list 9 violations for this system; 1 is 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 Willow Lake Park's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Willow 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 Medina County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Medina City Pws | Medina | 25,956 | Community | Purchased surface water |
| Wadsworth City Pws | Medina | 24,356 | Community | Groundwater |
| Medina Co/Southern Water Dist Pws | Medina | 4,708 | Community | Groundwater |
| Lodi Village Pws | Medina | 2,884 | Community | Groundwater |
| Seville Village Pws | Medina | 2,296 | Community | Groundwater |
| Spencer, Village of | Medina | 800 | Community | Purchased surface water |
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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, “Willow Lake Park, PWSID OH5253012, Ohio”, https://aquacensus.com/water-systems/ohio/willow-lake-park-oh5253012 (data as of October 1, 2026).