Public water system · MI2011623
ActiveMaple Valley Jr & Sr Hs
At a glance
Maple Valley Jr & Sr Hs (PWSID MI2011623) is an active non-transient non-community water system in Eaton County, Michigan. It reports serving 790 people through 2 service connections. 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 January 2025.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
790
Service connections
2
Primary source
GW
Groundwater
System type
NTNCWS
Non-transient non-community water system
System record
How does Maple Valley Jr & Sr Hs compare with other water systems in Eaton County?
By EPA's size categories, Maple Valley Jr & Sr Hs is a small system (501 to 3,300 people). Eaton County has 103 active public water systems. Its population served is about 20% above the county average of 659 people per system, and accounts for 1.2% of the 67,916 people reported by systems filed under the county. Across Michigan, the 10,599 active systems average 847 people each. Nationally, the average active non-transient non-community water system reports serving 430 people, so Maple Valley Jr & Sr Hs is about 84% above that figure.
What does “non-transient non-community water system” mean?
A non-transient non-community water system regularly serves at least 25 of the same people for more than six months a year, but not where they live. Schools, factories, office buildings and hospitals with their own supply are typical examples. Michigan has 1,402 active non-transient non-community water systems, 13% 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 Maple Valley Jr & Sr Hs?
EPA lists Maple Valley Jr & Sr Hs 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. 94 of the 103 active systems in Eaton County (91%) are also privately owned.
Does Maple Valley Jr & Sr Hs have drinking water violations?
Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in January 2025. The violations listed here began between January 2011 and January 2025. By type: 11 monitoring and reporting and 1 monitoring. The contaminants or rules involved are Lead and Copper Rule, Revised Total Coliform Rule, 1,2-Dichloropropane and Carbofuran. EPA lists 11 as archived and 1 as unaddressed. 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. Unaddressed means the violation is not resolved or archived and is not yet covered by formal enforcement.
| Began | Violation | Contaminant or rule | Health-based | Status |
|---|---|---|---|---|
| 2025-01-01 | Monitoring and reportingFollow-up Or Routine LCR Tap M/R · code 52 | Lead and Copper Rulecode 5000 | No | Unaddressed |
| 2025-01-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Archived |
| 2011-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | 1,2-Dichloropropanecode 2983 | No | Archived |
| 2011-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Carbofurancode 2046 | No | Archived |
| 2011-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Styrenecode 2996 | No | Archived |
| 2011-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Hexachlorocyclopentadienecode 2042 | No | Archived |
| 2011-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Lindane (gamma-BHC)code 2010 | No | Archived |
| 2011-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Oxamylcode 2036 | No | Archived |
| 2011-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | 1,1,1-Trichloroethanecode 2981 | No | Archived |
| 2011-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | 1,2-Dichloroethanecode 2980 | No | Archived |
| 2011-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Trichloroethylenecode 2984 | No | Archived |
| 2011-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Aldicarbcode 2047 | No | Archived |
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.
Maple Valley Jr & Sr Hs: frequently asked questions
Who runs Maple Valley Jr & Sr Hs?
Maple Valley Jr & Sr Hs (PWSID MI2011623) is a non-transient non-community water system privately owned. It is regulated by the MI state drinking water program.
How many people does Maple Valley Jr & Sr Hs serve?
Maple Valley Jr & Sr Hs reports serving 790 people through 2 service connections in Eaton County, Michigan.
Where does Maple Valley Jr & Sr Hs 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 Maple Valley Jr & Sr Hs 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 January 2025. 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 Maple Valley Jr & Sr Hs' 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 January 2025. For current results, consult EPA ECHO, or the MI state drinking water program.
Where can I find Maple Valley Jr & Sr Hs' water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Maple Valley Jr & Sr Hs is a non-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 Eaton County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Charter Township of Delta | Eaton | 21,856 | Community | Purchased groundwater |
| Charlotte, City of | Eaton | 9,074 | Community | Groundwater |
| Grand Ledge, City of | Eaton | 8,701 | Community | Groundwater |
| Eaton Rapids, City of | Eaton | 5,340 | Community | Groundwater |
| Potterville, City of | Eaton | 2,617 | Community | Groundwater |
| Olivet, City of | Eaton | 1,758 | 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, “Maple Valley Jr & Sr Hs, PWSID MI2011623, Michigan”, https://aquacensus.com/water-systems/michigan/maple-valley-jr-sr-hs-mi2011623 (data as of October 1, 2026).