Public water system · MI2038681

Active

Dnr-Waterloo Rec Area-Horeseman'S Cg

At a glance

Dnr-Waterloo Rec Area-Horeseman'S Cg (PWSID MI2038681) is an active transient non-community water system in Washtenaw County, Michigan. It reports serving 25 people through 1 service connection. Its primary water source is groundwater, and EPA lists it as owned by a state government. EPA's records list 9 violations for this system; 4 are health-based, and the most recent began in July 2013.

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

Population served

Service connections

Primary source

Groundwater

System type

TNCWS

Transient non-community water system

System record

PWSIDMI2038681

System typeTransient non-community water system

Activity statusActive

Population served25

Service connections1

Primary water sourceGroundwater

Owner typeState government

Primacy agencyMI state drinking water program

City served—

StateMichigan

ZIP—

CountyWashtenaw County

How does Dnr-Waterloo Rec Area-Horeseman'S Cg compare with other water systems in Washtenaw County?

By EPA's size categories, Dnr-Waterloo Rec Area-Horeseman'S Cg is a very small system (500 people or fewer). Washtenaw County has 262 active public water systems. Its population served is well below the county average of 1,147 people per system, and accounts for less than 0.1% of the 300,406 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 Dnr-Waterloo Rec Area-Horeseman'S Cg is well below 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 Dnr-Waterloo Rec Area-Horeseman'S Cg?

EPA lists Dnr-Waterloo Rec Area-Horeseman'S Cg as owned by a state 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. 17 of the 262 active systems in Washtenaw County (6.5%) are also owned by a state government.

Does Dnr-Waterloo Rec Area-Horeseman'S Cg have drinking water violations?

EPA's records list 9 violations for this system; 4 are health-based, and the most recent began in July 2013. The violations listed here began between January 1995 and July 2013. By type: 5 monitoring and reporting and 4 contaminant level above the legal limit. The contaminant or rule involved most often is Total coliform bacteria (TCR) (7 of them). EPA lists 9 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
2013-07-01	Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22	Total coliform bacteria (TCR)code 3100	Yes	Resolved
2012-10-01	Monitoring and reportingMonitoring, Routine Major (TCR) · code 23	Total coliform bacteria (TCR)code 3100	No	Resolved
2012-07-01	Monitoring and reportingMonitoring, Routine Major (TCR) · code 23	Total coliform bacteria (TCR)code 3100	No	Resolved
2007-10-01	Monitoring and reportingMonitoring, Routine Major (TCR) · code 23	Total coliform bacteria (TCR)code 3100	No	Resolved
2007-09-01	Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22	Total coliform bacteria (TCR)code 3100	Yes	Resolved
2006-09-01	Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22	Total coliform bacteria (TCR)code 3100	Yes	Resolved
2000-07-01	Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22	Total coliform bacteria (TCR)code 3100	Yes	Resolved
1999-01-01	Monitoring and reportingMonitoring, Regular · code 03	Nitratecode 1040	No	Resolved
1995-01-01	Monitoring and reportingMonitoring, Regular · code 03	Nitratecode 1040	No	Resolved

All 9 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.

Dnr-Waterloo Rec Area-Horeseman'S Cg: frequently asked questions

Who runs Dnr-Waterloo Rec Area-Horeseman'S Cg?

Dnr-Waterloo Rec Area-Horeseman'S Cg (PWSID MI2038681) is a transient non-community water system owned by a state government. It is regulated by the MI state drinking water program.

How many people does Dnr-Waterloo Rec Area-Horeseman'S Cg serve?

Dnr-Waterloo Rec Area-Horeseman'S Cg reports serving 25 people through 1 service connection in Washtenaw County, Michigan.

Where does Dnr-Waterloo Rec Area-Horeseman'S Cg 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 Dnr-Waterloo Rec Area-Horeseman'S Cg have any drinking water violations?

EPA's records list 9 violations for this system; 4 are health-based, and the most recent began in July 2013. 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 Dnr-Waterloo Rec Area-Horeseman'S Cg'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 9 violations for this system; 4 are health-based, and the most recent began in July 2013. For current results, consult EPA ECHO, or the MI state drinking water program.

Where can I find Dnr-Waterloo Rec Area-Horeseman'S Cg's water quality report?

The annual Consumer Confidence Report requirement applies to community water systems. Dnr-Waterloo Rec Area-Horeseman'S Cg 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 Washtenaw County

Water system	County	Population served	Type	Source
Ann Arbor	Washtenaw	123,851	Community	Surface water
Ypsilanti Community Utility Authority	Washtenaw	53,988	Community	Purchased surface water
Pittsfield Township	Washtenaw	24,500	Community	Purchased surface water
Saline	Washtenaw	9,158	Community	Groundwater
Scio Township	Washtenaw	8,500	Community	Purchased surface water
Milan	Washtenaw	7,363	Community	Groundwater

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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, “Dnr-Waterloo Rec Area-Horeseman'S Cg, PWSID MI2038681, Michigan”, https://aquacensus.com/water-systems/michigan/dnr-waterloo-rec-area-horeseman-s-cg-mi2038681 (data as of October 1, 2026).