Public water system · MI2073338
ActiveGrass Lake Dental Clinic
At a glance
Grass Lake Dental Clinic (PWSID MI2073338) is an active transient non-community water system in Jackson 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 records list 2 violations for this system; 1 is health-based, and the most recent began in November 2023.
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 Grass Lake Dental Clinic compare with other water systems in Jackson County?
By EPA's size categories, Grass Lake Dental Clinic is a very small system (500 people or fewer). Jackson County has 218 active public water systems. Its population served is well below the county average of 583 people per system, and accounts for less than 0.1% of the 126,981 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 Grass Lake Dental Clinic 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 Grass Lake Dental Clinic?
EPA lists Grass Lake Dental Clinic 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. 197 of the 218 active systems in Jackson County (90%) are also privately owned.
Does Grass Lake Dental Clinic have drinking water violations?
EPA's records list 2 violations for this system; 1 is health-based, and the most recent began in November 2023. The violations listed here began between April 2000 and November 2023. By type: 1 monitoring and 1 contaminant level above the legal limit. The contaminants or rules involved are Revised Total Coliform Rule and Total coliform bacteria (TCR). 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 |
|---|---|---|---|---|
| 2023-11-01 | MonitoringMonitoring, Additional Routine (RTCR) · code 3B | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2000-04-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | 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.
Grass Lake Dental Clinic: frequently asked questions
Who runs Grass Lake Dental Clinic?
Grass Lake Dental Clinic (PWSID MI2073338) is a transient non-community water system privately owned. It is regulated by the MI state drinking water program.
How many people does Grass Lake Dental Clinic serve?
Grass Lake Dental Clinic reports serving 50 people through 1 service connection in Jackson County, Michigan.
Where does Grass Lake Dental Clinic 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 Grass Lake Dental Clinic have any drinking water violations?
EPA's records list 2 violations for this system; 1 is health-based, and the most recent began in November 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 Grass Lake Dental Clinic'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; 1 is health-based, and the most recent began in November 2023. For current results, consult EPA ECHO, or the MI state drinking water program.
Where can I find Grass Lake Dental Clinic's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Grass Lake Dental Clinic 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 Jackson County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Jackson | Jackson | 33,165 | Community | Groundwater under influence of surface water |
| Summit Township | Jackson | 25,355 | Community | Groundwater |
| Blackman Township | Jackson | 21,222 | Community | Purchased groundwater under influence |
| Mdot - Sandstone, R819 | Jackson | 2,000 | Transient non-community | Groundwater |
| Mdot - Grass Lake, R818 | Jackson | 2,000 | Transient non-community | Groundwater |
| Grass Lake | Jackson | 1,986 | 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, “Grass Lake Dental Clinic, PWSID MI2073338, Michigan”, https://aquacensus.com/water-systems/michigan/grass-lake-dental-clinic-mi2073338 (data as of October 1, 2026).