Public water system · MI2020477
ActiveDnr-Ross Lake Cg
At a glance
Dnr-Ross Lake Cg (PWSID MI2020477) is an active transient non-community water system in Schoolcraft 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 4 violations for this system; 2 are health-based, and the most recent began in October 2024.
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 Dnr-Ross Lake Cg compare with other water systems in Schoolcraft County?
By EPA's size categories, Dnr-Ross Lake Cg is a very small system (500 people or fewer). Schoolcraft County has 66 active public water systems. Its population served is well below the county average of 117 people per system, and accounts for 0.3% of the 7,736 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-Ross Lake 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-Ross Lake Cg?
EPA lists Dnr-Ross Lake 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. 15 of the 66 active systems in Schoolcraft County (23%) are also owned by a state government.
Does Dnr-Ross Lake Cg have drinking water violations?
EPA's records list 4 violations for this system; 2 are health-based, and the most recent began in October 2024. The violations listed here began between July 1995 and October 2024. By type: 2 contaminant level above the legal limit, 1 monitoring and 1 monitoring and reporting. The contaminant or rule involved most often is Total coliform bacteria (TCR) (2 of them). EPA lists 2 as archived and 2 as resolved. 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. 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 |
|---|---|---|---|---|
| 2024-10-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Archived |
| 2020-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | No | Resolved |
| 2001-07-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 1995-07-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Archived |
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.
Dnr-Ross Lake Cg: frequently asked questions
Who runs Dnr-Ross Lake Cg?
Dnr-Ross Lake Cg (PWSID MI2020477) 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-Ross Lake Cg serve?
Dnr-Ross Lake Cg reports serving 25 people through 1 service connection in Schoolcraft County, Michigan.
Where does Dnr-Ross Lake 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-Ross Lake Cg have any drinking water violations?
EPA's records list 4 violations for this system; 2 are health-based, and the most recent began in October 2024. 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-Ross Lake 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 4 violations for this system; 2 are health-based, and the most recent began in October 2024. For current results, consult EPA ECHO, or the MI state drinking water program.
Where can I find Dnr-Ross Lake Cg's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Dnr-Ross Lake 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 Schoolcraft County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Manistique | Schoolcraft | 3,197 | Community | Surface water |
| Dnr-Indian Lake South Shore Cg | Schoolcraft | 300 | Transient non-community | Groundwater |
| Germfask Township | Schoolcraft | 200 | Community | Groundwater |
| Mdot - Manistique River R.P., P211 | Schoolcraft | 200 | Transient non-community | Groundwater |
| Mdot P210 Green School Rp | Schoolcraft | 200 | Transient non-community | Groundwater |
| Blaney Park Quick Stop | Schoolcraft | 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, “Dnr-Ross Lake Cg, PWSID MI2020477, Michigan”, https://aquacensus.com/water-systems/michigan/dnr-ross-lake-cg-mi2020477 (data as of October 1, 2026).