Public water system · OH3735012
ActiveOdnr-Hocking Hills-Conkles Hollow
At a glance
Odnr-Hocking Hills-Conkles Hollow (PWSID OH3735012) is an active transient non-community water system in Hocking County, Ohio. 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 8 violations for this system; 6 are health-based, and the most recent began in September 2015.
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 Odnr-Hocking Hills-Conkles Hollow compare with other water systems in Hocking County?
By EPA's size categories, Odnr-Hocking Hills-Conkles Hollow is a very small system (500 people or fewer). Hocking County has 42 active public water systems. Its population served is well below the county average of 283 people per system, and accounts for 0.2% of the 11,894 people reported by systems filed under the county. Across Ohio, the 3,854 active systems average 2,767 people each. Nationally, the average active transient non-community water system reports serving 144 people, so Odnr-Hocking Hills-Conkles Hollow 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. Ohio has 2,282 active transient non-community water systems, 59% of the state's 3,854 active systems. Groundwater means the system draws its water from wells or springs fed by underground aquifers. 3,446 Ohio systems (89%) list groundwater as their primary source.
Who owns and regulates Odnr-Hocking Hills-Conkles Hollow?
EPA lists Odnr-Hocking Hills-Conkles Hollow as owned by a state government. The OH state drinking water program is its primacy agency, the regulator with primary enforcement responsibility for the system under the Safe Drinking Water Act. 1 of the 42 active systems in Hocking County (2.4%) are also owned by a state government.
Does Odnr-Hocking Hills-Conkles Hollow have drinking water violations?
EPA's records list 8 violations for this system; 6 are health-based, and the most recent began in September 2015. The violations listed here began between July 1995 and September 2015. By type: 6 contaminant level above the legal limit and 2 monitoring and reporting. The contaminant or rule involved most often is Total coliform bacteria (TCR) (8 of them). EPA lists 5 as resolved and 3 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 |
|---|---|---|---|---|
| 2015-09-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Archived |
| 2015-07-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Acute (TCR) · code 21 | Total coliform bacteria (TCR)code 3100 | Yes | Archived |
| 2015-07-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Archived |
| 2008-11-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 1996-04-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 1995-07-01 | Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 1995-07-01 | 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, Acute (TCR) · code 21 | Total coliform bacteria (TCR)code 3100 | Yes | 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.
Odnr-Hocking Hills-Conkles Hollow: frequently asked questions
Who runs Odnr-Hocking Hills-Conkles Hollow?
Odnr-Hocking Hills-Conkles Hollow (PWSID OH3735012) is a transient non-community water system owned by a state government. It is regulated by the OH state drinking water program.
How many people does Odnr-Hocking Hills-Conkles Hollow serve?
Odnr-Hocking Hills-Conkles Hollow reports serving 25 people through 1 service connection in Hocking County, Ohio.
Where does Odnr-Hocking Hills-Conkles Hollow 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 Odnr-Hocking Hills-Conkles Hollow have any drinking water violations?
EPA's records list 8 violations for this system; 6 are health-based, and the most recent began in September 2015. 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 Odnr-Hocking Hills-Conkles Hollow'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; 6 are health-based, and the most recent began in September 2015. For current results, consult EPA ECHO, or the OH state drinking water program.
Where can I find Odnr-Hocking Hills-Conkles Hollow's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Odnr-Hocking Hills-Conkles Hollow 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 Hocking County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Logan, City of | Hocking | 6,704 | Community | Groundwater |
| Carbon Hill Water Association | Hocking | 910 | Community | Purchased groundwater |
| Laurelville, Vlg of | Hocking | 586 | Community | Groundwater |
| Murray City Village Pws | Hocking | 449 | Community | Purchased groundwater |
| Old Straitsville-Rockbridge | Hocking | 361 | Community | Purchased groundwater |
| Hocking Hills Elementary School | Hocking | 320 | Non-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, “Odnr-Hocking Hills-Conkles Hollow, PWSID OH3735012, Ohio”, https://aquacensus.com/water-systems/ohio/odnr-hocking-hills-conkles-hollow-oh3735012 (data as of October 1, 2026).