Public water system · 062005885
ActiveTonkawa Tribe of Oklahoma
At a glance
Tonkawa Tribe of Oklahoma (PWSID 062005885) is an active community water system in Oklahoma. It reports serving 400 people through 110 service connections. Its primary water source is purchased groundwater, and EPA lists it as Native American-owned. EPA's records list 2 violations for this system; none is health-based, and the most recent began in July 2024.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
400
Service connections
110
Primary source
GWP
Purchased groundwater
System type
CWS
Community water system
System record
How does Tonkawa Tribe of Oklahoma compare with other water systems in Oklahoma?
By EPA's size categories, Tonkawa Tribe of Oklahoma is a very small system (500 people or fewer). Across Oklahoma, the 1,254 active systems average 2,907 people each. Nationally, the average active community water system reports serving 6,703 people, so Tonkawa Tribe of Oklahoma is well below that figure.
What does “community water system” mean?
A community water system serves at least 15 connections used by year-round residents, or regularly serves at least 25 year-round residents. Homes, apartments and mobile-home parks are served by these. Oklahoma has 864 active community water systems, 69% of the state's 1,254 active systems. Purchased groundwater means the system buys groundwater from another public water system rather than drawing its own. 67 Oklahoma systems (5.3%) list purchased groundwater as their primary source.
Who owns and regulates Tonkawa Tribe of Oklahoma?
EPA lists Tonkawa Tribe of Oklahoma as Native American-owned. The EPA Region 06 is its primacy agency, the regulator with primary enforcement responsibility for the system under the Safe Drinking Water Act.
Does Tonkawa Tribe of Oklahoma have drinking water violations?
EPA's records list 2 violations for this system; none is health-based, and the most recent began in July 2024. The violations listed here began between January 2024 and July 2024. By type: 2 monitoring and reporting. The contaminant or rule involved most often is Lead and Copper Rule (2 of them). EPA lists 1 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 |
|---|---|---|---|---|
| 2024-07-01 | Monitoring and reportingFollow-up Or Routine LCR Tap M/R · code 52 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2024-01-01 | Monitoring and reportingWater Quality Parameter M/R · code 53 | Lead and Copper Rulecode 5000 | No | Archived |
All 2 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.
Tonkawa Tribe of Oklahoma: frequently asked questions
Who runs Tonkawa Tribe of Oklahoma?
Tonkawa Tribe of Oklahoma (PWSID 062005885) is a community water system Native American-owned. It is regulated by the EPA Region 06.
How many people does Tonkawa Tribe of Oklahoma serve?
Tonkawa Tribe of Oklahoma reports serving 400 people through 110 service connections in Oklahoma.
Where does Tonkawa Tribe of Oklahoma get its water?
EPA SDWIS lists this system's primary water source as purchased groundwater. Purchased groundwater means the system buys groundwater from another public water system rather than drawing its own.
Does Tonkawa Tribe of Oklahoma have any drinking water violations?
EPA's records list 2 violations for this system; none is health-based, and the most recent began in July 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 Tonkawa Tribe of Oklahoma'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 2 violations for this system; none is health-based, and the most recent began in July 2024. For current results, consult the system's annual water quality report, EPA ECHO, or the EPA Region 06.
Where can I find Tonkawa Tribe of Oklahoma's water quality report?
As a community water system, Tonkawa Tribe of Oklahoma must deliver an annual water quality report, called a Consumer Confidence Report, to its customers by July 1 each year, covering the previous calendar year. The system can provide a copy on request.
Other water systems in Oklahoma
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Oklahoma City | Oklahoma | 644,000 | Community | Surface water |
| Tulsa | Tulsa | 413,000 | Community | Surface water |
| Broken Arrow Municipal Authority | Tulsa | 116,330 | Community | Surface water |
| Norman Utilities Authority | Cleveland | 104,868 | Community | Surface water |
| Lawton | Comanche | 92,757 | Community | Surface water |
| Edmond Pwa | Oklahoma | 79,408 | Community | Surface water |
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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, “Tonkawa Tribe of Oklahoma, PWSID 062005885, Oklahoma”, https://aquacensus.com/water-systems/oklahoma/tonkawa-tribe-of-oklahoma-062005885 (data as of October 1, 2026).