Public water system · MI0006530

Active

Sylvan Lake

At a glance

Sylvan Lake (PWSID MI0006530) is an active community water system in Oakland County, Michigan. It reports serving 2,155 people through 872 service connections. Its primary water source is purchased surface water, and EPA lists it as owned by a local government. Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in July 2022.

Dataset updated October 2026 . Source: EPA SDWIS/ECHO public records.

Population served

2,155

Service connections

872

Primary source

SWP

Purchased surface water

System type

CWS

Community water system

System record

PWSIDMI0006530

System typeCommunity water system

Activity statusActive

Population served2,155

Service connections872

Primary water sourcePurchased surface water

Owner typeLocal government

Primacy agencyMI state drinking water program

City servedSylvan Lake

StateMichigan

ZIP—

CountyOakland County

How does Sylvan Lake compare with other water systems in Oakland County?

By EPA's size categories, Sylvan Lake is a small system (501 to 3,300 people). Oakland County has 734 active public water systems. Its population served is about 38% 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 Sylvan Lake 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. 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 Sylvan Lake?

EPA lists Sylvan Lake 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 Sylvan Lake have drinking water violations?

Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in July 2022. The violations listed here began between November 2000 and July 2022. By type: 10 monitoring and reporting, 1 monitoring and 1 public notice, recordkeeping or other. The contaminant or rule involved most often is Haloacetic acids (HAA5) (3 of them). EPA lists 12 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
2022-07-01	MonitoringMonitoring, Routine (RTCR) · code 3A	Revised Total Coliform Rulecode 8000	No	Resolved
2022-07-01	Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71	Consumer Confidence Rulecode 7000	No	Resolved
2018-09-01	Monitoring and reportingMonitoring and Reporting (DBP) · code 27	Haloacetic acids (HAA5)code 2456	No	Resolved
2018-09-01	Monitoring and reportingMonitoring and Reporting (DBP) · code 27	Total trihalomethanes (TTHM)code 2950	No	Resolved
2012-07-01	Monitoring and reportingMonitoring and Reporting (DBP) · code 27	Total trihalomethanes (TTHM)code 2950	No	Resolved
2012-07-01	Monitoring and reportingMonitoring and Reporting (DBP) · code 27	Haloacetic acids (HAA5)code 2456	No	Resolved
2009-01-02	Monitoring and reportingFailure Submit IDSE/Subpart V Plan Rpt · code 35	Stage 2 Disinfectants and Disinfection Byproducts Rulecode 0600	No	Resolved
2007-10-01	Monitoring and reportingMonitoring, Routine (IDSE) · code 30	Total trihalomethanes (TTHM)code 2950	No	Resolved
2007-10-01	Monitoring and reportingMonitoring, Routine (IDSE) · code 30	Haloacetic acids (HAA5)code 2456	No	Resolved
2007-07-01	Monitoring and reportingMonitoring and Reporting (DBP) · code 27	Chlorinecode 0999	No	Resolved
2007-04-01	Monitoring and reportingMonitoring and Reporting (DBP) · code 27	Chlorinecode 0999	No	Resolved
2000-11-01	Monitoring and reportingMonitoring, Routine Major (TCR) · code 23	Total coliform bacteria (TCR)code 3100	No	Resolved

The 12 most recent 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.

Sylvan Lake: frequently asked questions

Who runs Sylvan Lake?

Sylvan Lake (PWSID MI0006530) is a community water system owned by a local government. It is regulated by the MI state drinking water program.

How many people does Sylvan Lake serve?

Sylvan Lake reports serving 2,155 people through 872 service connections in Oakland County, Michigan.

Where does Sylvan Lake 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 Sylvan Lake have any drinking water violations?

Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in July 2022. 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 Sylvan Lake'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. Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in July 2022. For current results, consult the system's annual water quality report, EPA ECHO, or the MI state drinking water program.

Where can I find Sylvan Lake's water quality report?

As a community water system, Sylvan Lake 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, “Sylvan Lake, PWSID MI0006530, Michigan”, https://aquacensus.com/water-systems/michigan/sylvan-lake-mi0006530 (data as of October 1, 2026).