Public water system · MI2000874
ActiveMdot - Richmond R909 (R910 Closed)
At a glance
Mdot - Richmond R909 (R910 Closed) (PWSID MI2000874) is an active transient non-community water system in St. Clair County, Michigan. It reports serving 50 people through 2 service connections. Its primary water source is groundwater, and EPA lists it as owned by a state government. EPA's records list 5 violations for this system; 1 is health-based, and the most recent began in October 2008.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
50
Service connections
2
Primary source
GW
Groundwater
System type
TNCWS
Transient non-community water system
System record
How does Mdot - Richmond R909 (R910 Closed) compare with other water systems in St. Clair County?
By EPA's size categories, Mdot - Richmond R909 (R910 Closed) is a very small system (500 people or fewer). St. Clair County has 96 active public water systems. Its population served is well below the county average of 1,246 people per system, and accounts for less than 0.1% of the 119,605 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 Mdot - Richmond R909 (R910 Closed) is about 65% 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 Mdot - Richmond R909 (R910 Closed)?
EPA lists Mdot - Richmond R909 (R910 Closed) 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. 2 of the 96 active systems in St. Clair County (2.1%) are also owned by a state government.
Does Mdot - Richmond R909 (R910 Closed) have drinking water violations?
EPA's records list 5 violations for this system; 1 is health-based, and the most recent began in October 2008. The violations listed here began between January 1995 and October 2008. By type: 4 monitoring and reporting and 1 contaminant level above the legal limit. The contaminant or rule involved most often is Total coliform bacteria (TCR) (4 of them). EPA lists 4 as resolved and 1 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 |
|---|---|---|---|---|
| 2008-10-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 1996-07-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 1995-10-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 1995-07-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Archived |
| 1995-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | No | Resolved |
All 5 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.
Mdot - Richmond R909 (R910 Closed): frequently asked questions
Who runs Mdot - Richmond R909 (R910 Closed)?
Mdot - Richmond R909 (R910 Closed) (PWSID MI2000874) 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 Mdot - Richmond R909 (R910 Closed) serve?
Mdot - Richmond R909 (R910 Closed) reports serving 50 people through 2 service connections in St. Clair County, Michigan.
Where does Mdot - Richmond R909 (R910 Closed) 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 Mdot - Richmond R909 (R910 Closed) have any drinking water violations?
EPA's records list 5 violations for this system; 1 is health-based, and the most recent began in October 2008. 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 Mdot - Richmond R909 (R910 Closed)'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 5 violations for this system; 1 is health-based, and the most recent began in October 2008. For current results, consult EPA ECHO, or the MI state drinking water program.
Where can I find Mdot - Richmond R909 (R910 Closed)'s water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Mdot - Richmond R909 (R910 Closed) 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 St. Clair County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Port Huron, City of | St. Clair | 28,983 | Community | Surface water |
| Port Huron Township | St. Clair | 10,654 | Community | Purchased surface water |
| Marysville, City of | St. Clair | 9,959 | Community | Surface water |
| Clay Township | St. Clair | 9,866 | Community | Purchased surface water |
| Ira Township | St. Clair | 6,510 | Community | Surface water |
| St. Clair Water and Sewer Authority | St. Clair | 5,847 | Community | Surface water |
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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, “Mdot - Richmond R909 (R910 Closed), PWSID MI2000874, Michigan”, https://aquacensus.com/water-systems/michigan/mdot-richmond-r909-r910-closed-mi2000874 (data as of October 1, 2026).