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Public water system · MI2005229

Active

Hidden Oaks Golf Course

At a glance

Hidden Oaks Golf Course (PWSID MI2005229) is an active transient non-community water system in Gratiot County, Michigan. It reports serving 70 people through 1 service connection. Its primary water source is groundwater, and EPA lists it as privately owned. Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in October 2024.

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

Population served

70

Service connections

1

Primary source

GW

Groundwater

System type

TNCWS

Transient non-community water system

System record

PWSIDMI2005229
System typeTransient non-community water system
Activity statusActive
Population served70
Service connections1
Primary water sourceGroundwater
Owner typePrivate
Primacy agencyMI state drinking water program
City served—
StateMichigan
ZIP—
CountyGratiot County

How does Hidden Oaks Golf Course compare with other water systems in Gratiot County?

By EPA's size categories, Hidden Oaks Golf Course is a very small system (500 people or fewer). Gratiot County has 73 active public water systems. Its population served is well below the county average of 491 people per system, and accounts for 0.2% of the 35,869 people reported by systems filed under the county. Across Michigan, the 10,599 active systems average 847 people each. Nationally, the average active transient non-community water system reports serving 144 people, so Hidden Oaks Golf Course is about half of that figure.

What does “transient non-community water system” mean?

A transient non-community water system serves places where people do not stay long, such as gas stations and campgrounds, and regularly serves at least 25 people a day for at least 60 days a year. Michigan has 7,865 active transient non-community water systems, 74% 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 Hidden Oaks Golf Course?

EPA lists Hidden Oaks Golf Course as privately owned. 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. 64 of the 73 active systems in Gratiot County (88%) are also privately owned.

Does Hidden Oaks Golf Course have drinking water violations?

Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in October 2024. The violations listed here began between January 2024 and October 2024. By type: 10 monitoring and reporting and 2 monitoring. The contaminant or rule involved most often is Revised Total Coliform Rule (2 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.

BeganViolationContaminant or ruleHealth-basedStatus
2024-10-01MonitoringMonitoring, Routine (RTCR) · code 3ARevised Total Coliform Rulecode 8000NoResolved
2024-04-01MonitoringMonitoring, Routine (RTCR) · code 3ARevised Total Coliform Rulecode 8000NoResolved
2024-01-01Monitoring and reportingMonitoring, Regular · code 03Benzenecode 2990NoResolved
2024-01-01Monitoring and reportingMonitoring, Regular · code 031,1,1-Trichloroethanecode 2981NoResolved
2024-01-01Monitoring and reportingMonitoring, Regular · code 03Xylenes, Totalcode 2955NoResolved
2024-01-01Monitoring and reportingMonitoring, Regular · code 03Dichloromethanecode 2964NoResolved
2024-01-01Monitoring and reportingMonitoring, Regular · code 03p-Dichlorobenzenecode 2969NoResolved
2024-01-01Monitoring and reportingMonitoring, Regular · code 03o-Dichlorobenzenecode 2968NoResolved
2024-01-01Monitoring and reportingMonitoring, Regular · code 03Vinyl chloridecode 2976NoResolved
2024-01-01Monitoring and reportingMonitoring, Regular · code 031,1-Dichloroethylenecode 2977NoResolved
2024-01-01Monitoring and reportingMonitoring, Regular · code 031,2-Dichloroethanecode 2980NoResolved
2024-01-01Monitoring and reportingMonitoring, Regular · code 03Tetrachloroethylenecode 2987NoResolved

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.

Hidden Oaks Golf Course: frequently asked questions

Who runs Hidden Oaks Golf Course?

Hidden Oaks Golf Course (PWSID MI2005229) is a transient non-community water system privately owned. It is regulated by the MI state drinking water program.

How many people does Hidden Oaks Golf Course serve?

Hidden Oaks Golf Course reports serving 70 people through 1 service connection in Gratiot County, Michigan.

Where does Hidden Oaks Golf Course 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 Hidden Oaks Golf Course 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 October 2024. 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 Hidden Oaks Golf Course'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 October 2024. For current results, consult EPA ECHO, or the MI state drinking water program.

Where can I find Hidden Oaks Golf Course's water quality report?

The annual Consumer Confidence Report requirement applies to community water systems. Hidden Oaks Golf Course is a transient non-community water system, so it is not required to publish one; like every public water system, it must notify the people it serves about violations under EPA's public notification rules.

Other water systems in Gratiot County

Water systemCountyPopulation servedTypeSource
Alma, City ofGratiot9,182CommunityPurchased surface water
St. Louis, City ofGratiot6,976CommunityPurchased surface water
Ithaca, City ofGratiot3,098CommunityGroundwater
Mdot - Ithaca, R632Gratiot1,463Transient non-communityGroundwater
Breckenridge, Village ofGratiot1,339CommunityGroundwater
Alma Ez MartGratiot900Transient non-communityGroundwater

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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, “Hidden Oaks Golf Course, PWSID MI2005229, Michigan”, https://aquacensus.com/water-systems/michigan/hidden-oaks-golf-course-mi2005229 (data as of October 1, 2026).