Public water system · IN2270016
ActiveOld Oak Inn
At a glance
Old Oak Inn (PWSID IN2270016) is an active transient non-community water system in Grant County, Indiana. It reports serving 27 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 October 2024.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
27
Service connections
1
Primary source
GW
Groundwater
System type
TNCWS
Transient non-community water system
System record
How does Old Oak Inn compare with other water systems in Grant County?
By EPA's size categories, Old Oak Inn is a very small system (500 people or fewer). Grant County has 48 active public water systems. Its population served is well below the county average of 1,099 people per system, and accounts for less than 0.1% of the 52,771 people reported by systems filed under the county. Across Indiana, the 3,969 active systems average 1,456 people each. Nationally, the average active transient non-community water system reports serving 144 people, so Old Oak Inn 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. Indiana has 2,596 active transient non-community water systems, 65% of the state's 3,969 active systems. Groundwater means the system draws its water from wells or springs fed by underground aquifers. 3,769 Indiana systems (95%) list groundwater as their primary source.
Who owns and regulates Old Oak Inn?
EPA lists Old Oak Inn as privately owned. The IN state drinking water program is its primacy agency, the regulator with primary enforcement responsibility for the system under the Safe Drinking Water Act. 36 of the 48 active systems in Grant County (75%) are also privately owned.
Does Old Oak Inn have drinking water violations?
EPA's records list 6 violations for this system; none is health-based, and the most recent began in October 2024. The violations listed here began between April 2018 and October 2024. By type: 5 monitoring and 1 reporting. The contaminant or rule involved most often is Revised Total Coliform Rule (6 of them). EPA lists 6 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 |
|---|---|---|---|---|
| 2024-10-01 | ReportingReport Sample Result/Fail Monitor (RTCR) · code 4B | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2020-11-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2020-06-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2020-01-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2019-07-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2018-04-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | 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.
Old Oak Inn: frequently asked questions
Who runs Old Oak Inn?
Old Oak Inn (PWSID IN2270016) is a transient non-community water system privately owned. It is regulated by the IN state drinking water program.
How many people does Old Oak Inn serve?
Old Oak Inn reports serving 27 people through 1 service connection in Grant County, Indiana.
Where does Old Oak Inn 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 Old Oak Inn have any drinking water violations?
EPA's records list 6 violations for this system; none is 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 Old Oak Inn'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 October 2024. For current results, consult EPA ECHO, or the IN state drinking water program.
Where can I find Old Oak Inn's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Old Oak Inn 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 Grant County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Marion City Water Works | Grant | 28,363 | Community | Groundwater |
| Gas City Water Department | Grant | 6,000 | Community | Groundwater |
| Upland Water Department | Grant | 3,308 | Community | Groundwater |
| Fairmount Water Works | Grant | 2,756 | Community | Groundwater |
| Jonesboro Water Department | Grant | 2,034 | Community | Groundwater |
| Swayzee Water Utility | Grant | 975 | 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, “Old Oak Inn, PWSID IN2270016, Indiana”, https://aquacensus.com/water-systems/indiana/old-oak-inn-in2270016 (data as of October 1, 2026).