Public water system · MI2009418
ActiveDevils Knob
At a glance
Devils Knob (PWSID MI2009418) is an active transient non-community water system in Clare County, Michigan. It reports serving 30 people through 1 service connection. Its primary water source is groundwater, and EPA lists it as privately owned. EPA's records list 5 violations for this system; none is health-based, and the most recent began in April 2024.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
30
Service connections
1
Primary source
GW
Groundwater
System type
TNCWS
Transient non-community water system
System record
How does Devils Knob compare with other water systems in Clare County?
By EPA's size categories, Devils Knob is a very small system (500 people or fewer). Clare County has 130 active public water systems. Its population served is well below the county average of 197 people per system, and accounts for 0.1% of the 25,613 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 Devils Knob is well 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 Devils Knob?
EPA lists Devils Knob 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. 125 of the 130 active systems in Clare County (96%) are also privately owned.
Does Devils Knob have drinking water violations?
EPA's records list 5 violations for this system; none is health-based, and the most recent began in April 2024. The violations listed here began between January 2016 and April 2024. By type: 4 monitoring and 1 monitoring and reporting. The contaminant or rule involved most often is Revised Total Coliform Rule (4 of them). EPA lists 5 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 |
|---|---|---|---|---|
| 2024-04-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2024-04-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2023-11-01 | MonitoringMonitoring, Additional Routine (RTCR) · code 3B | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2016-04-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2016-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | No | Resolved |
All 5 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.
Devils Knob: frequently asked questions
Who runs Devils Knob?
Devils Knob (PWSID MI2009418) is a transient non-community water system privately owned. It is regulated by the MI state drinking water program.
How many people does Devils Knob serve?
Devils Knob reports serving 30 people through 1 service connection in Clare County, Michigan.
Where does Devils Knob 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 Devils Knob have any drinking water violations?
EPA's records list 5 violations for this system; none is health-based, and the most recent began in April 2024. 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 Devils Knob'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 5 violations for this system; none is health-based, and the most recent began in April 2024. For current results, consult EPA ECHO, or the MI state drinking water program.
Where can I find Devils Knob's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Devils Knob 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 Clare County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Clare, City of | Clare | 3,118 | Community | Groundwater |
| Harrison, City of | Clare | 1,100 | Community | Groundwater |
| Clare Welcome Center | Clare | 1,000 | Transient non-community | Groundwater |
| Jays Sporting Goods | Clare | 900 | Non-transient non-community | Groundwater |
| Thrush'S Pit Stop | Clare | 900 | Transient non-community | Groundwater |
| Farwell, Village of | Clare | 871 | 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, “Devils Knob, PWSID MI2009418, Michigan”, https://aquacensus.com/water-systems/michigan/devils-knob-mi2009418 (data as of October 1, 2026).