Public water system · MI0002925
ActiveLake Doster
At a glance
Lake Doster (PWSID MI0002925) is an active community water system in Allegan County, Michigan. It reports serving 1,492 people through 437 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 September 2016.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
1,492
Service connections
437
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Lake Doster compare with other water systems in Allegan County?
By EPA's size categories, Lake Doster is a small system (501 to 3,300 people). Allegan County has 302 active public water systems. Its population served is about 4.3 times the county average of 345 people per system, and accounts for 1.4% of the 104,093 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 Lake Doster 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 Lake Doster?
EPA lists Lake Doster 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. 13 of the 302 active systems in Allegan County (4.3%) are also owned by a local government.
Does Lake Doster have drinking water violations?
EPA's records list 7 violations for this system; 2 are health-based, and the most recent began in September 2016. The violations listed here began between August 1995 and September 2016. By type: 3 monitoring and reporting, 2 contaminant level above the legal limit, 1 monitoring and 1 public notice, recordkeeping or other. The contaminant or rule involved most often is Total coliform bacteria (TCR) (3 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 |
|---|---|---|---|---|
| 2016-09-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2014-08-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Haloacetic acids (HAA5)code 2456 | No | Resolved |
| 2014-08-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Total trihalomethanes (TTHM)code 2950 | No | Resolved |
| 2007-08-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 2003-07-01 | Public notice, recordkeeping or otherOperations Report · code 10 | Not reported | No | Resolved |
| 1999-11-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 1995-08-01 | 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.
Lake Doster: frequently asked questions
Who runs Lake Doster?
Lake Doster (PWSID MI0002925) is a community water system owned by a local government. It is regulated by the MI state drinking water program.
How many people does Lake Doster serve?
Lake Doster reports serving 1,492 people through 437 service connections in Allegan County, Michigan.
Where does Lake Doster 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 Lake Doster have any drinking water violations?
EPA's records list 7 violations for this system; 2 are health-based, and the most recent began in September 2016. 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 Lake Doster'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 September 2016. For current results, consult the system's annual water quality report, EPA ECHO, or the MI state drinking water program.
Where can I find Lake Doster's water quality report?
As a community water system, Lake Doster 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 Allegan County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Allegan | Allegan | 5,930 | Community | Groundwater |
| Kalamazoo Lake Sewer & Water Authority | Allegan | 5,000 | Community | Groundwater |
| Wayland | Allegan | 4,435 | Community | Groundwater |
| Otsego | Allegan | 4,120 | Community | Groundwater |
| Plainwell | Allegan | 3,998 | Community | Groundwater |
| Bittersweet Ski Resort Inc. | Allegan | 3,500 | Transient non-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, “Lake Doster, PWSID MI0002925, Michigan”, https://aquacensus.com/water-systems/michigan/lake-doster-mi0002925 (data as of October 1, 2026).