Public water system · MI0001773
ActiveDeerwood Subdivision
At a glance
Deerwood Subdivision (PWSID MI0001773) is an active community water system in Oakland County, Michigan. It reports serving 1,824 people through 608 service connections. Its primary water source is groundwater, and EPA lists it as owned by a local government. EPA's records list 2 violations for this system; 1 is health-based, and the most recent began in July 2015.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
1,824
Service connections
608
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Deerwood Subdivision compare with other water systems in Oakland County?
By EPA's size categories, Deerwood Subdivision is a small system (501 to 3,300 people). Oakland County has 734 active public water systems. Its population served is about 17% above the county average of 1,561 people per system, and accounts for 0.2% 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 Deerwood Subdivision 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 Deerwood Subdivision?
EPA lists Deerwood Subdivision 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 Deerwood Subdivision have drinking water violations?
EPA's records list 2 violations for this system; 1 is health-based, and the most recent began in July 2015. The violations listed here began between July 2001 and July 2015. By type: 1 contaminant level above the legal limit and 1 public notice, recordkeeping or other. The contaminants or rules involved are Total coliform bacteria (TCR) and Consumer Confidence Rule. EPA lists 2 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 |
|---|---|---|---|---|
| 2015-07-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 2001-07-01 | Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71 | Consumer Confidence Rulecode 7000 | No | Resolved |
All 2 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.
Deerwood Subdivision: frequently asked questions
Who runs Deerwood Subdivision?
Deerwood Subdivision (PWSID MI0001773) is a community water system owned by a local government. It is regulated by the MI state drinking water program.
How many people does Deerwood Subdivision serve?
Deerwood Subdivision reports serving 1,824 people through 608 service connections in Oakland County, Michigan.
Where does Deerwood Subdivision 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 Deerwood Subdivision have any drinking water violations?
EPA's records list 2 violations for this system; 1 is health-based, and the most recent began in July 2015. 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 Deerwood Subdivision'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 2 violations for this system; 1 is health-based, and the most recent began in July 2015. For current results, consult the system's annual water quality report, EPA ECHO, or the MI state drinking water program.
Where can I find Deerwood Subdivision's water quality report?
As a community water system, Deerwood Subdivision 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 |
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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, “Deerwood Subdivision, PWSID MI0001773, Michigan”, https://aquacensus.com/water-systems/michigan/deerwood-subdivision-mi0001773 (data as of October 1, 2026).