Public water system · MI2021623
ActiveEj USA
At a glance
Ej USA (PWSID MI2021623) is an active non-transient non-community water system in Eaton County, Michigan. It reports serving 40 people through 1 service connection. Its primary water source is groundwater, and EPA lists it as privately owned. EPA's records list 7 violations for this system; 4 are health-based, and the most recent began in April 2005.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
40
Service connections
1
Primary source
GW
Groundwater
System type
NTNCWS
Non-transient non-community water system
System record
How does Ej USA compare with other water systems in Eaton County?
By EPA's size categories, Ej USA is a very small system (500 people or fewer). Eaton County has 103 active public water systems. Its population served is well below the county average of 659 people per system, and accounts for less than 0.1% of the 67,916 people reported by systems filed under the county. Across Michigan, the 10,599 active systems average 847 people each. Nationally, the average active non-transient non-community water system reports serving 430 people, so Ej USA is well below that figure.
What does “non-transient non-community water system” mean?
A non-transient non-community water system regularly serves at least 25 of the same people for more than six months a year, but not where they live. Schools, factories, office buildings and hospitals with their own supply are typical examples. Michigan has 1,402 active non-transient non-community water systems, 13% 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 Ej USA?
EPA lists Ej USA 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. 94 of the 103 active systems in Eaton County (91%) are also privately owned.
Does Ej USA have drinking water violations?
EPA's records list 7 violations for this system; 4 are health-based, and the most recent began in April 2005. The violations listed here began between October 1997 and April 2005. By type: 4 contaminant level above the legal limit and 3 monitoring and reporting. The contaminant or rule involved most often is Total coliform bacteria (TCR) (4 of them). EPA lists 7 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 |
|---|---|---|---|---|
| 2005-04-01 | Monitoring and reportingMonitoring, Regular · code 03 | Arseniccode 1005 | No | Resolved |
| 2004-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | No | Resolved |
| 2002-07-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 2001-10-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 2000-07-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 1999-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | No | Resolved |
| 1997-10-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
All 7 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.
Ej USA: frequently asked questions
Who runs Ej USA?
Ej USA (PWSID MI2021623) is a non-transient non-community water system privately owned. It is regulated by the MI state drinking water program.
How many people does Ej USA serve?
Ej USA reports serving 40 people through 1 service connection in Eaton County, Michigan.
Where does Ej USA 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 Ej USA have any drinking water violations?
EPA's records list 7 violations for this system; 4 are health-based, and the most recent began in April 2005. 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 Ej USA'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 7 violations for this system; 4 are health-based, and the most recent began in April 2005. For current results, consult EPA ECHO, or the MI state drinking water program.
Where can I find Ej USA's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Ej USA is a non-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 Eaton County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Charter Township of Delta | Eaton | 21,856 | Community | Purchased groundwater |
| Charlotte, City of | Eaton | 9,074 | Community | Groundwater |
| Grand Ledge, City of | Eaton | 8,701 | Community | Groundwater |
| Eaton Rapids, City of | Eaton | 5,340 | Community | Groundwater |
| Potterville, City of | Eaton | 2,617 | Community | Groundwater |
| Olivet, City of | Eaton | 1,758 | 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, “Ej USA, PWSID MI2021623, Michigan”, https://aquacensus.com/water-systems/michigan/ej-usa-mi2021623 (data as of October 1, 2026).