Public water system · MI2009068
ActiveKnothole Bar
At a glance
Knothole Bar (PWSID MI2009068) is an active transient non-community water system in Oscoda County, Michigan. It reports serving 50 people through 1 service connection. Its primary water source is groundwater, and EPA lists it as privately owned. EPA's Safe Drinking Water Act records list no violations for this system.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
50
Service connections
1
Primary source
GW
Groundwater
System type
TNCWS
Transient non-community water system
System record
How does Knothole Bar compare with other water systems in Oscoda County?
By EPA's size categories, Knothole Bar is a very small system (500 people or fewer). Oscoda County has 70 active public water systems. Its population served is about half of the county average of 106 people per system, and accounts for 0.7% of the 7,420 people reported by systems filed under the county. Across Michigan, the 10,599 active systems average 847 people each. Nationally, the average active transient non-community water system reports serving 144 people, so Knothole Bar is about 65% below 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. Michigan has 7,865 active transient non-community water systems, 74% of the state's 10,599 active systems. Groundwater means the system draws its water from wells or springs fed by underground aquifers. 10,214 Michigan systems (96%) list groundwater as their primary source.
Who owns and regulates Knothole Bar?
EPA lists Knothole Bar as privately owned. The MI state drinking water program is its primacy agency, the regulator with primary enforcement responsibility for the system under the Safe Drinking Water Act. 66 of the 70 active systems in Oscoda County (94%) are also privately owned.
Does Knothole Bar have drinking water violations?
No SDWA violations on record.
EPA's SDWA violation and enforcement data (via EPA ECHO, updated quarterly) lists no violations for Knothole Bar. For the latest compliance status, check EPA ECHO for current compliance history.
Knothole Bar: frequently asked questions
Who runs Knothole Bar?
Knothole Bar (PWSID MI2009068) is a transient non-community water system privately owned. It is regulated by the MI state drinking water program.
How many people does Knothole Bar serve?
Knothole Bar reports serving 50 people through 1 service connection in Oscoda County, Michigan.
Where does Knothole Bar 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 Knothole Bar have any drinking water violations?
EPA's Safe Drinking Water Act records list no violations for this system.
Is Knothole Bar'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 Safe Drinking Water Act records list no violations for this system. For current results, consult EPA ECHO, or the MI state drinking water program.
Where can I find Knothole Bar's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Knothole Bar 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 Oscoda County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Big Creek/Mentor Utility Authority | Oscoda | 622 | Community | Groundwater |
| Luzerne Express | Oscoda | 500 | Transient non-community | Groundwater |
| Garland Resort Maintenance Bld | Oscoda | 400 | Transient non-community | Groundwater |
| Fairview Area Schools | Oscoda | 348 | Non-transient non-community | Groundwater |
| Fairview Bp | Oscoda | 300 | Transient non-community | Groundwater |
| Garland Hotel | Oscoda | 300 | Non-transient non-community | Groundwater |
Related pages
Working with water-system records? Pro adds alerts, change history and CSV export ($49/mo); Enterprise adds full national files, the API and an MCP server for AI tools.
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, “Knothole Bar, PWSID MI2009068, Michigan”, https://aquacensus.com/water-systems/michigan/knothole-bar-mi2009068 (data as of October 1, 2026).