Public water system · MI2009302
ActiveUsnps - Miners Castle
At a glance
Usnps - Miners Castle (PWSID MI2009302) is an active transient non-community water system in Alger County, Michigan. It reports serving 75 people through 1 service connection. Its primary water source is groundwater, and EPA lists it as privately owned. EPA's records list 4 violations for this system; 2 are health-based, and the most recent began in January 2021.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
75
Service connections
1
Primary source
GW
Groundwater
System type
TNCWS
Transient non-community water system
System record
How does Usnps - Miners Castle compare with other water systems in Alger County?
By EPA's size categories, Usnps - Miners Castle is a very small system (500 people or fewer). Alger County has 85 active public water systems. Its population served is about 35% below the county average of 115 people per system, and accounts for 0.8% of the 9,767 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 Usnps - Miners Castle 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 Usnps - Miners Castle?
EPA lists Usnps - Miners Castle 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. 67 of the 85 active systems in Alger County (79%) are also privately owned.
Does Usnps - Miners Castle have drinking water violations?
EPA's records list 4 violations for this system; 2 are health-based, and the most recent began in January 2021. The violations listed here began between July 2000 and January 2021. By type: 2 monitoring and reporting and 2 contaminant level above the legal limit. The contaminant or rule involved most often is Nitrate (2 of them). EPA lists 4 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 |
|---|---|---|---|---|
| 2021-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | No | Resolved |
| 2015-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | No | Resolved |
| 2010-07-01 | 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 |
All 4 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.
Usnps - Miners Castle: frequently asked questions
Who runs Usnps - Miners Castle?
Usnps - Miners Castle (PWSID MI2009302) is a transient non-community water system privately owned. It is regulated by the MI state drinking water program.
How many people does Usnps - Miners Castle serve?
Usnps - Miners Castle reports serving 75 people through 1 service connection in Alger County, Michigan.
Where does Usnps - Miners Castle 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 Usnps - Miners Castle have any drinking water violations?
EPA's records list 4 violations for this system; 2 are health-based, and the most recent began in January 2021. 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 Usnps - Miners Castle'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 4 violations for this system; 2 are health-based, and the most recent began in January 2021. For current results, consult EPA ECHO, or the MI state drinking water program.
Where can I find Usnps - Miners Castle's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Usnps - Miners Castle 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 Alger County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Munising | Alger | 2,783 | Community | Groundwater |
| Munising Industrial Park | Alger | 465 | Community | Groundwater |
| Burt Township | Alger | 411 | Community | Groundwater |
| Chatham | Alger | 300 | Community | Groundwater |
| Pictured Rocks Rv Park & Campground | Alger | 288 | Transient non-community | Groundwater |
| Autrain Beach Campground | Alger | 200 | Transient non-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, “Usnps - Miners Castle, PWSID MI2009302, Michigan”, https://aquacensus.com/water-systems/michigan/usnps-miners-castle-mi2009302 (data as of October 1, 2026).