Public water system · MI0001037
ActiveCaledonia Estates
At a glance
Caledonia Estates (PWSID MI0001037) is an active community water system in Kent County, Michigan. It reports serving 160 people through 4 service connections. Its primary water source is groundwater, and EPA lists it as privately owned. EPA's records list 6 violations for this system; none is health-based, and the most recent began in January 2026.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
160
Service connections
4
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Caledonia Estates compare with other water systems in Kent County?
By EPA's size categories, Caledonia Estates is a very small system (500 people or fewer). Kent County has 397 active public water systems. Its population served is well below the county average of 1,634 people per system, and accounts for less than 0.1% of the 648,694 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 Caledonia Estates is well below 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 Caledonia Estates?
EPA lists Caledonia Estates 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. 374 of the 397 active systems in Kent County (94%) are also privately owned.
Does Caledonia Estates have drinking water violations?
EPA's records list 6 violations for this system; none is health-based, and the most recent began in January 2026. The violations listed here began between October 2021 and January 2026. By type: 6 monitoring and reporting. The contaminant or rule involved most often is Lead and Copper Rule (3 of them). EPA lists 3 as archived and 3 as resolved. Archived means the violation was not marked resolved but is more than five years past the end of the noncompliance period, so it no longer counts toward current compliance status. 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 |
|---|---|---|---|---|
| 2026-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Arseniccode 1005 | No | Archived |
| 2023-01-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Total trihalomethanes (TTHM)code 2950 | No | Archived |
| 2023-01-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Haloacetic acids (HAA5)code 2456 | No | Archived |
| 2022-12-30 | Monitoring and reportingLead Consumer Notice · code 66 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2022-10-11 | Monitoring and reportingFollow-up Or Routine LCR Tap M/R · code 52 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2021-10-01 | Monitoring and reportingFollow-up Or Routine LCR Tap M/R · code 52 | Lead and Copper Rulecode 5000 | No | Resolved |
All 6 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.
Caledonia Estates: frequently asked questions
Who runs Caledonia Estates?
Caledonia Estates (PWSID MI0001037) is a community water system privately owned. It is regulated by the MI state drinking water program.
How many people does Caledonia Estates serve?
Caledonia Estates reports serving 160 people through 4 service connections in Kent County, Michigan.
Where does Caledonia Estates 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 Caledonia Estates have any drinking water violations?
EPA's records list 6 violations for this system; none is health-based, and the most recent began in January 2026. 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 Caledonia Estates' 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 6 violations for this system; none is health-based, and the most recent began in January 2026. For current results, consult the system's annual water quality report, EPA ECHO, or the MI state drinking water program.
Where can I find Caledonia Estates' water quality report?
As a community water system, Caledonia Estates 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 Kent County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Grand Rapids | Kent | 306,901 | Community | Surface water |
| Wyoming | Kent | 72,125 | Community | Surface water |
| Plainfield Township | Kent | 42,271 | Community | Groundwater under influence of surface water |
| Byron-Gaines Utility Authority | Kent | 37,464 | Community | Purchased surface water |
| Kentwood | Kent | 36,072 | Community | Purchased surface water |
| Grandville | Kent | 15,948 | Community | Purchased surface water |
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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, “Caledonia Estates, PWSID MI0001037, Michigan”, https://aquacensus.com/water-systems/michigan/caledonia-estates-mi0001037 (data as of October 1, 2026).