Public water system · MN5390055
ActiveOak Harbor Golf Course
At a glance
Oak Harbor Golf Course (PWSID MN5390055) is an active transient non-community water system in Lake of the Woods County, Minnesota. It reports serving 75 people through 2 service connections. Its primary water source is groundwater, and EPA lists it as privately owned. EPA's records list 2 violations for this system; none is health-based, and the most recent began in May 2023.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
75
Service connections
2
Primary source
GW
Groundwater
System type
TNCWS
Transient non-community water system
System record
How does Oak Harbor Golf Course compare with other water systems in Lake of the Woods County?
By EPA's size categories, Oak Harbor Golf Course is a very small system (500 people or fewer). Lake of the Woods County has 66 active public water systems. Its population served is roughly in line with the county average of 76 people per system, and accounts for 1.5% of the 5,031 people reported by systems filed under the county. Across Minnesota, the 6,465 active systems average 820 people each. Nationally, the average active transient non-community water system reports serving 144 people, so Oak Harbor Golf Course is about half of 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. Minnesota has 5,008 active transient non-community water systems, 77% of the state's 6,465 active systems. Groundwater means the system draws its water from wells or springs fed by underground aquifers. 6,261 Minnesota systems (97%) list groundwater as their primary source.
Who owns and regulates Oak Harbor Golf Course?
EPA lists Oak Harbor Golf Course as privately owned. The MN state drinking water program is its primacy agency, the regulator with primary enforcement responsibility for the system under the Safe Drinking Water Act. 58 of the 66 active systems in Lake of the Woods County (88%) are also privately owned.
Does Oak Harbor Golf Course have drinking water violations?
EPA's records list 2 violations for this system; none is health-based, and the most recent began in May 2023. The violations listed here began between May 2022 and May 2023. By type: 2 reporting. The contaminant or rule involved most often is Revised Total Coliform Rule (2 of them). EPA lists 2 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 |
|---|---|---|---|---|
| 2023-05-06 | ReportingReport Startup Procedures Cert Form (RTCR) · code 4C | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2022-05-06 | ReportingReport Startup Procedures Cert Form (RTCR) · code 4C | Revised Total Coliform Rulecode 8000 | No | Resolved |
All 2 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.
Oak Harbor Golf Course: frequently asked questions
Who runs Oak Harbor Golf Course?
Oak Harbor Golf Course (PWSID MN5390055) is a transient non-community water system privately owned. It is regulated by the MN state drinking water program.
How many people does Oak Harbor Golf Course serve?
Oak Harbor Golf Course reports serving 75 people through 2 service connections in Lake of the Woods County, Minnesota.
Where does Oak Harbor Golf Course 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 Oak Harbor Golf Course have any drinking water violations?
EPA's records list 2 violations for this system; none is health-based, and the most recent began in May 2023. 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 Oak Harbor Golf Course'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 2 violations for this system; none is health-based, and the most recent began in May 2023. For current results, consult EPA ECHO, or the MN state drinking water program.
Where can I find Oak Harbor Golf Course's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Oak Harbor Golf Course 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 Lake of the Woods County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Baudette | Lake of the Woods | 947 | Community | Groundwater |
| Bethany Lutheran Church | Lake of the Woods | 501 | Transient non-community | Groundwater |
| Rock Harbor Lodge | Lake of the Woods | 200 | Transient non-community | Groundwater |
| Ballard'S Resort | Lake of the Woods | 200 | Transient non-community | Groundwater |
| Marina Drive Campground | Lake of the Woods | 130 | Transient non-community | Groundwater |
| Flag Island Resort | Lake of the Woods | 120 | Transient non-community | Groundwater under influence of 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, “Oak Harbor Golf Course, PWSID MN5390055, Minnesota”, https://aquacensus.com/water-systems/minnesota/oak-harbor-golf-course-mn5390055 (data as of October 1, 2026).