Public water system · MI2038378
ActiveTwo Dog Tavern
At a glance
Two Dog Tavern (PWSID MI2038378) is an active transient non-community water system in Shiawassee 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 8 violations for this system; none is health-based, and the most recent began in January 2025.
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 Two Dog Tavern compare with other water systems in Shiawassee County?
By EPA's size categories, Two Dog Tavern is a very small system (500 people or fewer). Shiawassee County has 126 active public water systems. Its population served is well below the county average of 340 people per system, and accounts for less than 0.1% of the 42,865 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 Two Dog Tavern 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 Two Dog Tavern?
EPA lists Two Dog Tavern 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. 118 of the 126 active systems in Shiawassee County (94%) are also privately owned.
Does Two Dog Tavern have drinking water violations?
EPA's records list 8 violations for this system; none is health-based, and the most recent began in January 2025. The violations listed here began between April 2010 and January 2025. By type: 7 monitoring and reporting and 1 monitoring. The contaminant or rule involved most often is Total coliform bacteria (TCR) (6 of them). EPA lists 7 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 |
|---|---|---|---|---|
| 2025-01-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Archived |
| 2013-07-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2013-04-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2013-01-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2012-01-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2012-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | No | Resolved |
| 2011-04-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2010-04-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
All 8 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.
Two Dog Tavern: frequently asked questions
Who runs Two Dog Tavern?
Two Dog Tavern (PWSID MI2038378) is a transient non-community water system privately owned. It is regulated by the MI state drinking water program.
How many people does Two Dog Tavern serve?
Two Dog Tavern reports serving 25 people through 1 service connection in Shiawassee County, Michigan.
Where does Two Dog Tavern 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 Two Dog Tavern have any drinking water violations?
EPA's records list 8 violations for this system; 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 Two Dog Tavern'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 8 violations for this system; 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 Two Dog Tavern's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Two Dog Tavern 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 Shiawassee County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Owosso, City of | Shiawassee | 16,353 | Community | Surface water |
| Durand, City of | Shiawassee | 3,446 | Community | Groundwater |
| Perry, City of | Shiawassee | 2,065 | Community | Groundwater |
| Corunna, City of | Shiawassee | 2,028 | Community | Purchased groundwater |
| Mdot - Woodbury Rest Area | Shiawassee | 1,200 | Transient non-community | Groundwater |
| Leisure Lake Snack Bar | Shiawassee | 1,000 | 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, “Two Dog Tavern, PWSID MI2038378, Michigan”, https://aquacensus.com/water-systems/michigan/two-dog-tavern-mi2038378 (data as of October 1, 2026).