Public water system · OK2003603
ActiveTonkawa
Community water system in Kay County, Oklahoma, drawing primarily on groundwater.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
3,299
Service connections
1,255
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
Violations & enforcement
| Began | Violation | Contaminant or rule | Health-based | Status |
|---|---|---|---|---|
| 2026-02-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Archived |
| 2026-02-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Chlorinecode 0999 | No | Archived |
| 2025-08-14 | Monitoring and reportingMonitoring, Source Water (GWR) · code 34 | E. colicode 3014 | No | Unaddressed |
| 2024-10-17 | ReportingLSL Reporting · code 4G | Lead and Copper Rule Revisionscode 5200 | No | Resolved |
| 2024-10-17 | Required treatment not metLSL Inventory · code 2E | Lead and Copper Rule Revisionscode 5200 | Yes | Resolved |
| 2022-10-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Total trihalomethanes (TTHM)code 2950 | No | Resolved |
| 2022-10-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Haloacetic acids (HAA5)code 2456 | No | Resolved |
| 2017-01-19 | Monitoring and reportingMonitoring, Source Water (GWR) · code 34 | E. colicode 3014 | No | Unaddressed |
| 2015-09-17 | Monitoring and reportingMonitoring, Source Water (GWR) · code 34 | E. colicode 3014 | No | Unaddressed |
| 2014-09-18 | Monitoring and reportingMonitoring, Source Water (GWR) · code 34 | E. colicode 3014 | No | Unaddressed |
| 2014-08-21 | Monitoring and reportingMonitoring, Source Water (GWR) · code 34 | E. colicode 3014 | No | Unaddressed |
| 2014-07-01 | Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71 | Consumer Confidence Rulecode 7000 | No | Resolved |
The 12 most recent 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: frequently asked questions
Is Tonkawa's water safe to drink?
Tonkawa is an active community water system regulated under the Safe Drinking Water Act, overseen by the OK state drinking water program. EPA's SDWA data records violations for this system — the most recent are listed on this page, including health-based violations; consult EPA ECHO or your annual Consumer Confidence Report for its current compliance status.
Who runs Tonkawa?
Tonkawa (PWSID OK2003603) is a local government-owned community water system, regulated by the OK state drinking water program.
How many people does Tonkawa serve?
Tonkawa reports serving 3,299 people through 1,255 service connections in Kay County, Oklahoma.
Where does Tonkawa get its water?
EPA SDWIS lists this system's primary water source as groundwater.
Other water systems in Kay County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Ponca City Mun Water | Kay | 27,155 | Community | Surface water |
| Blackwell Municipal Authority | Kay | 7,668 | Community | Surface water |
| Newkirk | Kay | 2,243 | Community | Groundwater |
| Kay Co Rwd #1 | Kay | 1,765 | Community | Purchased surface water |
| Kay Co Rwd #3 | Kay | 1,000 | Community | Purchased surface water |
| Kay County Rural Water District 7 | Kay | 920 | Community | Purchased surface water |
Working with water-system records? Pro adds alerts, change history and CSV export ($49/mo); Enterprise adds full national files, the API and an MCP server for AI tools.