Public water system · OK2006916
ActiveLake Humphrey Concession
At a glance
Lake Humphrey Concession (PWSID OK2006916) is an active transient non-community water system in Stephens County, Oklahoma. It reports serving 50 people through 1 service connection. Its primary water source is groundwater, and EPA lists it as privately owned. EPA's records list 10 violations for this system; 2 are health-based, and the most recent began in October 2023.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
50
Service connections
1
Primary source
GW
Groundwater
System type
TNCWS
Transient non-community water system
System record
How does Lake Humphrey Concession compare with other water systems in Stephens County?
By EPA's size categories, Lake Humphrey Concession is a very small system (500 people or fewer). Stephens County has 10 active public water systems. Its population served is well below the county average of 3,870 people per system, and accounts for 0.1% of the 38,695 people reported by systems filed under the county. Across Oklahoma, the 1,254 active systems average 2,907 people each. Nationally, the average active transient non-community water system reports serving 144 people, so Lake Humphrey Concession 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. Oklahoma has 306 active transient non-community water systems, 24% of the state's 1,254 active systems. Groundwater means the system draws its water from wells or springs fed by underground aquifers. 701 Oklahoma systems (56%) list groundwater as their primary source.
Who owns and regulates Lake Humphrey Concession?
EPA lists Lake Humphrey Concession as privately owned. The OK state drinking water program is its primacy agency, the regulator with primary enforcement responsibility for the system under the Safe Drinking Water Act. 4 of the 10 active systems in Stephens County (40%) are also privately owned.
Does Lake Humphrey Concession have drinking water violations?
EPA's records list 10 violations for this system; 2 are health-based, and the most recent began in October 2023. The violations listed here began between September 1991 and October 2023. By type: 6 monitoring and reporting, 2 monitoring and 2 contaminant level above the legal limit. The contaminant or rule involved most often is Total coliform bacteria (TCR) (5 of them). EPA lists 10 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 |
|---|---|---|---|---|
| 2023-10-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2021-10-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2015-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitrate-Nitritecode 1038 | No | Resolved |
| 2013-06-01 | Monitoring and reportingMonitoring, Source Water (GWR) · code 34 | E. colicode 3014 | No | Resolved |
| 2011-11-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2009-10-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2007-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitrate-Nitritecode 1038 | No | Resolved |
| 1992-12-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 1991-10-01 | Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 1991-09-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
All 10 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.
Lake Humphrey Concession: frequently asked questions
Who runs Lake Humphrey Concession?
Lake Humphrey Concession (PWSID OK2006916) is a transient non-community water system privately owned. It is regulated by the OK state drinking water program.
How many people does Lake Humphrey Concession serve?
Lake Humphrey Concession reports serving 50 people through 1 service connection in Stephens County, Oklahoma.
Where does Lake Humphrey Concession 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 Lake Humphrey Concession have any drinking water violations?
EPA's records list 10 violations for this system; 2 are health-based, and the most recent began in October 2023. 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 Lake Humphrey Concession'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 10 violations for this system; 2 are health-based, and the most recent began in October 2023. For current results, consult EPA ECHO, or the OK state drinking water program.
Where can I find Lake Humphrey Concession's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Lake Humphrey Concession 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 Stephens County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Duncan Public Utilities Authority | Stephens | 23,000 | Community | Surface water |
| Stephens Co Rwd #5 | Stephens | 6,426 | Community | Purchased surface water |
| Marlow Municipal Authority | Stephens | 4,600 | Community | Groundwater |
| Comanche Public Works Authority | Stephens | 1,649 | Community | Surface water |
| Stephens Co Rwd #3 (Meridian) | Stephens | 1,610 | Community | Purchased surface water |
| Stephens Co Rw&Sd #1 | Stephens | 960 | 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, “Lake Humphrey Concession, PWSID OK2006916, Oklahoma”, https://aquacensus.com/water-systems/oklahoma/lake-humphrey-concession-ok2006916 (data as of October 1, 2026).