Public water system · MI2010837
ActiveDeerfield Co. Parks
At a glance
Deerfield Co. Parks (PWSID MI2010837) is an active transient non-community water system in Isabella County, Michigan. It reports serving 25 people through 1 service connection. Its primary water source is groundwater, and EPA lists it as privately owned. EPA's records list 6 violations for this system; 2 are health-based, and the most recent began in January 2020.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
25
Service connections
1
Primary source
GW
Groundwater
System type
TNCWS
Transient non-community water system
System record
How does Deerfield Co. Parks compare with other water systems in Isabella County?
By EPA's size categories, Deerfield Co. Parks is a very small system (500 people or fewer). Isabella County has 83 active public water systems. Its population served is well below the county average of 581 people per system, and accounts for less than 0.1% of the 48,199 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 Deerfield Co. Parks 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 Deerfield Co. Parks?
EPA lists Deerfield Co. Parks 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. 78 of the 83 active systems in Isabella County (94%) are also privately owned.
Does Deerfield Co. Parks have drinking water violations?
EPA's records list 6 violations for this system; 2 are health-based, and the most recent began in January 2020. The violations listed here began between April 2002 and January 2020. By type: 3 monitoring, 2 contaminant level above the legal limit and 1 monitoring and reporting. The contaminant or rule involved most often is Revised Total Coliform Rule (3 of them). EPA lists 4 as resolved and 2 as archived. 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. Archived means the violation was not marked resolved but is more than five years past the end of the noncompliance period, so it no longer counts toward current compliance status.
| Began | Violation | Contaminant or rule | Health-based | Status |
|---|---|---|---|---|
| 2020-01-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Archived |
| 2018-10-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2017-10-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Archived |
| 2007-07-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2006-07-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 2002-04-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
All 6 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.
Deerfield Co. Parks: frequently asked questions
Who runs Deerfield Co. Parks?
Deerfield Co. Parks (PWSID MI2010837) is a transient non-community water system privately owned. It is regulated by the MI state drinking water program.
How many people does Deerfield Co. Parks serve?
Deerfield Co. Parks reports serving 25 people through 1 service connection in Isabella County, Michigan.
Where does Deerfield Co. Parks 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 Deerfield Co. Parks have any drinking water violations?
EPA's records list 6 violations for this system; 2 are health-based, and the most recent began in January 2020. 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 Deerfield Co. Parks' 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 6 violations for this system; 2 are health-based, and the most recent began in January 2020. For current results, consult EPA ECHO, or the MI state drinking water program.
Where can I find Deerfield Co. Parks' water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Deerfield Co. Parks 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 Isabella County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Mount Pleasant | Isabella | 21,688 | Community | Surface water |
| Union Township | Isabella | 12,927 | Community | Groundwater |
| Shepherd, Village of | Isabella | 1,515 | Community | Groundwater |
| Weidman Ez Mart | Isabella | 800 | Transient non-community | Groundwater |
| Beal City Public Schools | Isabella | 785 | Non-transient non-community | Groundwater |
| Outdoor Adventures- Mt Pleasant | Isabella | 640 | Transient non-community | Groundwater |
Related pages
Working with water-system records? Pro adds alerts, change history and CSV export ($49/mo); Enterprise adds full national files, the API and an MCP server for AI tools.
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, “Deerfield Co. Parks, PWSID MI2010837, Michigan”, https://aquacensus.com/water-systems/michigan/deerfield-co-parks-mi2010837 (data as of October 1, 2026).