Public water system · MI2151925
ActiveCorcoran House
At a glance
Corcoran House (PWSID MI2151925) is an active transient non-community water system in Genesee 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; none is health-based, and the most recent began in September 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 Corcoran House compare with other water systems in Genesee County?
By EPA's size categories, Corcoran House is a very small system (500 people or fewer). Genesee County has 378 active public water systems. Its population served is well below the county average of 871 people per system, and accounts for less than 0.1% of the 329,216 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 Corcoran House 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 Corcoran House?
EPA lists Corcoran House 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. 358 of the 378 active systems in Genesee County (95%) are also privately owned.
Does Corcoran House have drinking water violations?
EPA's records list 6 violations for this system; none is health-based, and the most recent began in September 2024. The violations listed here began between April 2001 and September 2024. By type: 4 monitoring and reporting and 2 monitoring. The contaminant or rule involved most often is Nitrate (3 of them). EPA lists 5 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 |
|---|---|---|---|---|
| 2024-09-01 | MonitoringMonitoring, Additional Routine (RTCR) · code 3B | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2024-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | No | Archived |
| 2024-01-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2023-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | No | Resolved |
| 2021-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | No | Resolved |
| 2001-04-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | 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.
Corcoran House: frequently asked questions
Who runs Corcoran House?
Corcoran House (PWSID MI2151925) is a transient non-community water system privately owned. It is regulated by the MI state drinking water program.
How many people does Corcoran House serve?
Corcoran House reports serving 25 people through 1 service connection in Genesee County, Michigan.
Where does Corcoran House 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 Corcoran House have any drinking water violations?
EPA's records list 6 violations for this system; none is health-based, and the most recent began in September 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 Corcoran House'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 6 violations for this system; none is health-based, and the most recent began in September 2024. For current results, consult EPA ECHO, or the MI state drinking water program.
Where can I find Corcoran House's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Corcoran House 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 Genesee County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Flint, City of | Genesee | 81,252 | Community | Purchased surface water |
| Genesee County Water System | Genesee | 73,726 | Community | Purchased surface water |
| Charter Township of Grand Blanc | Genesee | 21,000 | Community | Purchased surface water |
| Burton, City of | Genesee | 21,000 | Community | Purchased surface water |
| Fenton, City of | Genesee | 11,746 | Community | Groundwater |
| Beecher Metropolitan District | Genesee | 9,400 | 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, “Corcoran House, PWSID MI2151925, Michigan”, https://aquacensus.com/water-systems/michigan/corcoran-house-mi2151925 (data as of October 1, 2026).