Public water system · MI2033081
ActiveDnr-Pinckney Rec Area/Halfmoon Beach
At a glance
Dnr-Pinckney Rec Area/Halfmoon Beach (PWSID MI2033081) is an active transient non-community water system in Washtenaw County, Michigan. It reports serving 900 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 one violation for this system; it is health-based, and the most recent began in April 1998.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
900
Service connections
1
Primary source
GW
Groundwater
System type
TNCWS
Transient non-community water system
System record
How does Dnr-Pinckney Rec Area/Halfmoon Beach compare with other water systems in Washtenaw County?
By EPA's size categories, Dnr-Pinckney Rec Area/Halfmoon Beach is a small system (501 to 3,300 people). Washtenaw County has 262 active public water systems. Its population served is about 22% below the county average of 1,147 people per system, and accounts for 0.3% 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-Pinckney Rec Area/Halfmoon Beach is about 6.3 times 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-Pinckney Rec Area/Halfmoon Beach?
EPA lists Dnr-Pinckney Rec Area/Halfmoon Beach 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-Pinckney Rec Area/Halfmoon Beach have drinking water violations?
EPA's records list one violation for this system; it is health-based, and the most recent began in April 1998. By type: 1 contaminant level above the legal limit. The contaminant or rule involved is Total coliform bacteria (TCR). EPA lists 1 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 |
|---|---|---|---|---|
| 1998-04-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
The one violation in EPA's records.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-Pinckney Rec Area/Halfmoon Beach: frequently asked questions
Who runs Dnr-Pinckney Rec Area/Halfmoon Beach?
Dnr-Pinckney Rec Area/Halfmoon Beach (PWSID MI2033081) 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-Pinckney Rec Area/Halfmoon Beach serve?
Dnr-Pinckney Rec Area/Halfmoon Beach reports serving 900 people through 1 service connection in Washtenaw County, Michigan.
Where does Dnr-Pinckney Rec Area/Halfmoon Beach 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-Pinckney Rec Area/Halfmoon Beach have any drinking water violations?
EPA's records list one violation for this system; it is health-based, and the most recent began in April 1998. 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-Pinckney Rec Area/Halfmoon Beach'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 one violation for this system; it is health-based, and the most recent began in April 1998. For current results, consult EPA ECHO, or the MI state drinking water program.
Where can I find Dnr-Pinckney Rec Area/Halfmoon Beach's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Dnr-Pinckney Rec Area/Halfmoon Beach 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-Pinckney Rec Area/Halfmoon Beach, PWSID MI2033081, Michigan”, https://aquacensus.com/water-systems/michigan/dnr-pinckney-rec-area-halfmoon-beach-mi2033081 (data as of October 1, 2026).