Public water system · MI0002770
ActiveGrand Ledge, City of
At a glance
City of Grand Ledge (PWSID MI0002770) is an active community water system in Eaton County, Michigan. It reports serving 8,701 people through 3,006 service connections. Its primary water source is groundwater, and EPA lists it as owned by a local government. EPA's records list 7 violations for this system; 2 are health-based, and the most recent began in July 2025.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
8,701
Service connections
3,006
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does City of Grand Ledge compare with other water systems in Eaton County?
By EPA's size categories, City of Grand Ledge is a medium system (3,301 to 10,000 people). Eaton County has 103 active public water systems, and City of Grand Ledge is the 3rd-largest of them by population served. Its population served is about 13 times the county average of 659 people per system, and accounts for 13% 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 community water system reports serving 6,703 people, so City of Grand Ledge is about 30% above that figure.
What does “community water system” mean?
A community water system serves at least 15 connections used by year-round residents, or regularly serves at least 25 year-round residents. Homes, apartments and mobile-home parks are served by these. Michigan has 1,332 active 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 City of Grand Ledge?
EPA lists City of Grand Ledge as owned by a local government. 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. 9 of the 103 active systems in Eaton County (8.7%) are also owned by a local government.
Does City of Grand Ledge have drinking water violations?
EPA's records list 7 violations for this system; 2 are health-based, and the most recent began in July 2025. The violations listed here began between October 1998 and July 2025. By type: 4 monitoring and reporting, 2 contaminant level above the legal limit and 1 monitoring. 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 |
|---|---|---|---|---|
| 2025-07-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2025-07-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Chlorinecode 0999 | No | Resolved |
| 2016-10-01 | Monitoring and reportingFollow-up Or Routine LCR Tap M/R · code 52 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2014-09-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 2010-05-01 | Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 1998-10-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 1998-10-01 | Monitoring and reportingMonitoring, Repeat Major (TCR) · code 25 | Total coliform bacteria (TCR)code 3100 | No | 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.
City of Grand Ledge: frequently asked questions
Who runs City of Grand Ledge?
City of Grand Ledge (PWSID MI0002770) is a community water system owned by a local government. It is regulated by the MI state drinking water program.
How many people does City of Grand Ledge serve?
City of Grand Ledge reports serving 8,701 people through 3,006 service connections in Eaton County, Michigan.
Where does City of Grand Ledge 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 City of Grand Ledge have any drinking water violations?
EPA's records list 7 violations for this system; 2 are health-based, and the most recent began in July 2025. 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 City of Grand Ledge'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; 2 are health-based, and the most recent began in July 2025. For current results, consult the system's annual water quality report, EPA ECHO, or the MI state drinking water program.
Where can I find City of Grand Ledge's water quality report?
As a community water system, City of Grand Ledge must deliver an annual water quality report, called a Consumer Confidence Report, to its customers by July 1 each year, covering the previous calendar year. The system can provide a copy on request.
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 |
| 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 |
| Bellevue, Village of | Eaton | 1,282 | 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, “Grand Ledge, City of, PWSID MI0002770, Michigan”, https://aquacensus.com/water-systems/michigan/grand-ledge-city-of-mi0002770 (data as of October 1, 2026).