Public water system · MI0001730
ActiveDearborn
At a glance
Dearborn (PWSID MI0001730) is an active community water system in Wayne County, Michigan. It reports serving 109,976 people through 32,581 service connections. Its primary water source is purchased surface water, and EPA lists it as owned by a local government. EPA's records list one violation for this system; it is not health-based, and the most recent began in July 2000.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
109,976
Service connections
32,581
Primary source
SWP
Purchased surface water
System type
CWS
Community water system
System record
How does Dearborn compare with other water systems in Wayne County?
By EPA's size categories, Dearborn is a very large system (more than 100,000 people). Wayne County has 55 active public water systems, and Dearborn is the 2nd-largest of them by population served. Its population served is about 3.4 times the county average of 32,428 people per system, and accounts for 6.2% of the 1,783,512 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 Dearborn is about 16 times 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. Purchased surface water means the system buys surface water from another public water system rather than drawing its own. 262 Michigan systems (2.5%) list purchased surface water as their primary source.
Who owns and regulates Dearborn?
EPA lists Dearborn 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. 44 of the 55 active systems in Wayne County (80%) are also owned by a local government.
Does Dearborn have drinking water violations?
EPA's records list one violation for this system; it is not health-based, and the most recent began in July 2000. By type: 1 public notice, recordkeeping or other. The contaminant or rule involved is Consumer Confidence Rule. EPA lists 1 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 |
|---|---|---|---|---|
| 2000-07-01 | Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71 | Consumer Confidence Rulecode 7000 | No | Resolved |
The one violation in EPA's records.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.
Dearborn: frequently asked questions
Who runs Dearborn?
Dearborn (PWSID MI0001730) is a community water system owned by a local government. It is regulated by the MI state drinking water program.
How many people does Dearborn serve?
Dearborn reports serving 109,976 people through 32,581 service connections in Wayne County, Michigan.
Where does Dearborn get its water?
EPA SDWIS lists this system's primary water source as purchased surface water. Purchased surface water means the system buys surface water from another public water system rather than drawing its own.
Does Dearborn have any drinking water violations?
EPA's records list one violation for this system; it is not health-based, and the most recent began in July 2000. 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 Dearborn'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 one violation for this system; it is not health-based, and the most recent began in July 2000. For current results, consult the system's annual water quality report, EPA ECHO, or the MI state drinking water program.
Where can I find Dearborn's water quality report?
As a community water system, Dearborn 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 Wayne County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Detroit City of | Wayne | 633,218 | Community | Purchased surface water |
| Canton Township | Wayne | 99,627 | Community | Surface water |
| Livonia | Wayne | 96,942 | Community | Purchased surface water |
| Westland | Wayne | 85,420 | Community | Purchased surface water |
| Taylor | Wayne | 63,409 | Community | Purchased surface water |
| Dearborn Heights | Wayne | 57,774 | 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, “Dearborn, PWSID MI0001730, Michigan”, https://aquacensus.com/water-systems/michigan/dearborn-mi0001730 (data as of October 1, 2026).