Public water system · OK4001494
ActiveThunderbird Chapel
At a glance
Thunderbird Chapel (PWSID OK4001494) is an active transient non-community water system in Cleveland County, Oklahoma. It reports serving 26 people through 1 service connection. Its primary water source is groundwater, and EPA lists it as privately owned. EPA's records list 9 violations for this system; none is health-based, and the most recent began in June 2025.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
26
Service connections
1
Primary source
GW
Groundwater
System type
TNCWS
Transient non-community water system
System record
How does Thunderbird Chapel compare with other water systems in Cleveland County?
By EPA's size categories, Thunderbird Chapel is a very small system (500 people or fewer). Cleveland County has 70 active public water systems. Its population served is well below the county average of 3,084 people per system, and accounts for less than 0.1% of the 215,909 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 Thunderbird Chapel 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. 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 Thunderbird Chapel?
EPA lists Thunderbird Chapel 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. 52 of the 70 active systems in Cleveland County (74%) are also privately owned.
Does Thunderbird Chapel have drinking water violations?
EPA's records list 9 violations for this system; none is health-based, and the most recent began in June 2025. The violations listed here began between January 2014 and June 2025. By type: 6 monitoring and 3 monitoring and reporting. The contaminant or rule involved most often is Revised Total Coliform Rule (6 of them). EPA lists 8 as resolved and 1 as unaddressed. 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. Unaddressed means the violation is not resolved or archived and is not yet covered by formal enforcement.
| Began | Violation | Contaminant or rule | Health-based | Status |
|---|---|---|---|---|
| 2025-06-01 | MonitoringMonitoring, Additional Routine (RTCR) · code 3B | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2025-05-23 | Monitoring and reportingMonitoring, Source Water (GWR) · code 34 | E. colicode 3014 | No | Unaddressed |
| 2024-11-01 | MonitoringMonitoring, Additional Routine (RTCR) · code 3B | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2024-10-16 | Monitoring and reportingMonitoring, Source Water (GWR) · code 34 | E. colicode 3014 | No | Resolved |
| 2024-07-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2022-07-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2018-10-01 | 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 |
| 2014-01-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
All 9 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.
Thunderbird Chapel: frequently asked questions
Who runs Thunderbird Chapel?
Thunderbird Chapel (PWSID OK4001494) is a transient non-community water system privately owned. It is regulated by the OK state drinking water program.
How many people does Thunderbird Chapel serve?
Thunderbird Chapel reports serving 26 people through 1 service connection in Cleveland County, Oklahoma.
Where does Thunderbird Chapel 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 Thunderbird Chapel have any drinking water violations?
EPA's records list 9 violations for this system; none is health-based, and the most recent began in June 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 Thunderbird Chapel'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 9 violations for this system; none is health-based, and the most recent began in June 2025. For current results, consult EPA ECHO, or the OK state drinking water program.
Where can I find Thunderbird Chapel's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Thunderbird Chapel 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 Cleveland County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Norman Utilities Authority | Cleveland | 104,868 | Community | Surface water |
| Moore Public Works Authority | Cleveland | 55,083 | Community | Purchased surface water |
| Oklahoma University | Cleveland | 34,000 | Community | Purchased surface water |
| Noble Utilities Authority | Cleveland | 5,750 | Community | Groundwater |
| Joseph Harp Corr Inst | Cleveland | 3,000 | Community | Groundwater |
| Lexington | Cleveland | 2,086 | 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, “Thunderbird Chapel, PWSID OK4001494, Oklahoma”, https://aquacensus.com/water-systems/oklahoma/thunderbird-chapel-ok4001494 (data as of October 1, 2026).