Public water system · OK1020510
ActiveWewoka Public Works Authority
At a glance
Wewoka Public Works Authority (PWSID OK1020510) is an active community water system in Seminole County, Oklahoma. It reports serving 3,450 people through 1,650 service connections. Its primary water source is surface water, and EPA lists it as owned by a local government. Of the 12 most recent violations in EPA's records, 6 are health-based, and the most recent began in December 2025.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
3,450
Service connections
1,650
Primary source
SW
Surface water
System type
CWS
Community water system
System record
How does Wewoka Public Works Authority compare with other water systems in Seminole County?
By EPA's size categories, Wewoka Public Works Authority is a medium system (3,301 to 10,000 people). Seminole County has 15 active public water systems, and Wewoka Public Works Authority is the 2nd-largest of them by population served. Its population served is about 3 times the county average of 1,134 people per system, and accounts for 20% of the 17,004 people reported by systems filed under the county. 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 Wewoka Public Works Authority is about half of 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. Surface water means the system draws its water from rivers, lakes, streams or reservoirs. 175 Oklahoma systems (14%) list surface water as their primary source.
Who owns and regulates Wewoka Public Works Authority?
EPA lists Wewoka Public Works Authority as owned by a local government. 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. 11 of the 15 active systems in Seminole County (73%) are also owned by a local government.
Does Wewoka Public Works Authority have drinking water violations?
Of the 12 most recent violations in EPA's records, 6 are health-based, and the most recent began in December 2025. The violations listed here began between February 2025 and December 2025. By type: 5 monitoring and reporting, 4 contaminant level above the legal limit, 2 required treatment not met and 1 monitoring. The contaminant or rule involved most often is Total trihalomethanes (TTHM) (6 of them). EPA lists 6 as resolved and 6 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 |
|---|---|---|---|---|
| 2025-12-30 | Monitoring and reportingFailure Submit IDSE/Subpart V Plan Rpt · code 35 | Total trihalomethanes (TTHM)code 2950 | No | Resolved |
| 2025-12-01 | Required treatment not metMonthly Turbidity Exceed (Enhanced SWTR) · code 44 | Interim Enhanced Surface Water Treatment Rulecode 0300 | Yes | Archived |
| 2025-12-01 | Required treatment not metSingle Turbidity Exceed (Enhanced SWTR) · code 43 | Interim Enhanced Surface Water Treatment Rulecode 0300 | Yes | Archived |
| 2025-11-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Chlorinecode 0999 | No | Resolved |
| 2025-11-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2025-10-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Total trihalomethanes (TTHM)code 2950 | Yes | Archived |
| 2025-09-01 | Monitoring and reportingMonitoring, Turbidity (Enhanced SWTR) · code 38 | Interim Enhanced Surface Water Treatment Rulecode 0300 | No | Resolved |
| 2025-07-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Total trihalomethanes (TTHM)code 2950 | Yes | Archived |
| 2025-06-30 | Monitoring and reportingFailure Submit IDSE/Subpart V Plan Rpt · code 35 | Total trihalomethanes (TTHM)code 2950 | No | Resolved |
| 2025-04-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Total trihalomethanes (TTHM)code 2950 | Yes | Archived |
| 2025-04-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Total trihalomethanes (TTHM)code 2950 | Yes | Archived |
| 2025-02-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Chlorinecode 0999 | 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.
Wewoka Public Works Authority: frequently asked questions
Who runs Wewoka Public Works Authority?
Wewoka Public Works Authority (PWSID OK1020510) is a community water system owned by a local government. It is regulated by the OK state drinking water program.
How many people does Wewoka Public Works Authority serve?
Wewoka Public Works Authority reports serving 3,450 people through 1,650 service connections in Seminole County, Oklahoma.
Where does Wewoka Public Works Authority get its water?
EPA SDWIS lists this system's primary water source as surface water. Surface water means the system draws its water from rivers, lakes, streams or reservoirs.
Does Wewoka Public Works Authority have any drinking water violations?
Of the 12 most recent violations in EPA's records, 6 are health-based, and the most recent began in December 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 Wewoka Public Works Authority'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. Of the 12 most recent violations in EPA's records, 6 are health-based, and the most recent began in December 2025. For current results, consult the system's annual water quality report, EPA ECHO, or the OK state drinking water program.
Where can I find Wewoka Public Works Authority's water quality report?
As a community water system, Wewoka Public Works Authority 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 Seminole County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Seminole | Seminole | 6,899 | Community | Groundwater |
| Bowlegs Lima Water | Seminole | 2,500 | Community | Groundwater |
| Konawa Pwa | Seminole | 1,479 | Community | Groundwater |
| Konawa School | Seminole | 600 | Non-transient non-community | Groundwater |
| Seminole Co. Rwd #7 | Seminole | 450 | Community | Groundwater |
| Seminole Co. Rwd #1 | Seminole | 387 | Community | Purchased 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, “Wewoka Public Works Authority, PWSID OK1020510, Oklahoma”, https://aquacensus.com/water-systems/oklahoma/wewoka-public-works-authority-ok1020510 (data as of October 1, 2026).