Public water system · MI0003100
ActiveHazel Park
At a glance
Hazel Park (PWSID MI0003100) is an active community water system in Oakland County, Michigan. It reports serving 16,400 people through 7,233 service connections. Its primary water source is purchased surface water, and EPA lists it as owned by a local government. EPA's Safe Drinking Water Act records list no violations for this system.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
16,400
Service connections
7,233
Primary source
SWP
Purchased surface water
System type
CWS
Community water system
System record
How does Hazel Park compare with other water systems in Oakland County?
By EPA's size categories, Hazel Park is a large system (10,001 to 100,000 people). Oakland County has 734 active public water systems. Its population served is about 11 times the county average of 1,561 people per system, and accounts for 1.4% of the 1,145,905 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 Hazel Park is about 145% 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. 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 Hazel Park?
EPA lists Hazel Park 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. 56 of the 734 active systems in Oakland County (7.6%) are also owned by a local government.
Does Hazel Park have drinking water violations?
No SDWA violations on record.
EPA's SDWA violation and enforcement data (via EPA ECHO, updated quarterly) lists no violations for Hazel Park. For the latest compliance status, check EPA ECHO for current compliance history.
Hazel Park: frequently asked questions
Who runs Hazel Park?
Hazel Park (PWSID MI0003100) is a community water system owned by a local government. It is regulated by the MI state drinking water program.
How many people does Hazel Park serve?
Hazel Park reports serving 16,400 people through 7,233 service connections in Oakland County, Michigan.
Where does Hazel Park 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 Hazel Park have any drinking water violations?
EPA's Safe Drinking Water Act records list no violations for this system.
Is Hazel Park'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 Safe Drinking Water Act records list no violations for this system. For current results, consult the system's annual water quality report, EPA ECHO, or the MI state drinking water program.
Where can I find Hazel Park's water quality report?
As a community water system, Hazel Park 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 Oakland County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Troy | Oakland | 85,854 | Community | Purchased surface water |
| Rochester Hills | Oakland | 74,000 | Community | Purchased surface water |
| Waterford Township | Oakland | 73,441 | Community | Groundwater |
| Southfield | Oakland | 71,739 | Community | Purchased surface water |
| Pontiac | Oakland | 63,776 | Community | Purchased surface water |
| Royal Oak, City of | Oakland | 57,236 | Community | Purchased surface water |
Related pages
Working with water-system records? Pro adds alerts, change history and CSV export ($49/mo); Enterprise adds full national files, the API and an MCP server for AI tools.
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, “Hazel Park, PWSID MI0003100, Michigan”, https://aquacensus.com/water-systems/michigan/hazel-park-mi0003100 (data as of October 1, 2026).