Public water system · OK1021678
ActiveMayes Co Rwd # 9
At a glance
Mayes Co Rwd # 9 (PWSID OK1021678) is an active community water system in Mayes County, Oklahoma. It reports serving 2,578 people through 930 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, one is health-based, and the most recent began in January 2026.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
2,578
Service connections
930
Primary source
SW
Surface water
System type
CWS
Community water system
System record
How does Mayes Co Rwd # 9 compare with other water systems in Mayes County?
By EPA's size categories, Mayes Co Rwd # 9 is a small system (501 to 3,300 people). Mayes County has 23 active public water systems. Its population served is about 34% above the county average of 1,931 people per system, and accounts for 5.8% of the 44,401 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 Mayes Co Rwd # 9 is about 62% 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. 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 Mayes Co Rwd # 9?
EPA lists Mayes Co Rwd # 9 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. 16 of the 23 active systems in Mayes County (70%) are also owned by a local government.
Does Mayes Co Rwd # 9 have drinking water violations?
Of the 12 most recent violations in EPA's records, one is health-based, and the most recent began in January 2026. The violations listed here began between January 2023 and January 2026. By type: 8 monitoring and reporting, 1 public notice, recordkeeping or other, 1 monitoring, 1 required treatment not met and 1 reporting. The contaminant or rule involved most often is Lead and Copper Rule (3 of them). EPA lists 5 as resolved, 3 as archived, 2 as unaddressed and 2 as addressed. 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. Unaddressed means the violation is not resolved or archived and is not yet covered by formal enforcement. Addressed means the violation is not resolved or archived and is covered by formal enforcement.
| Began | Violation | Contaminant or rule | Health-based | Status |
|---|---|---|---|---|
| 2026-01-01 | Monitoring and reportingFollow-up Or Routine LCR Tap M/R · code 52 | Lead and Copper Rulecode 5000 | No | Unaddressed |
| 2025-11-01 | Monitoring and reportingMonitoring, Turbidity (Enhanced SWTR) · code 38 | Interim Enhanced Surface Water Treatment Rulecode 0300 | No | Archived |
| 2025-07-01 | Monitoring and reportingFollow-up Or Routine LCR Tap M/R · code 52 | Lead and Copper Rulecode 5000 | No | Unaddressed |
| 2025-07-01 | Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71 | Consumer Confidence Rulecode 7000 | No | Resolved |
| 2024-12-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2024-11-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Chlorinecode 0999 | No | Resolved |
| 2024-10-17 | Required treatment not metLSL Inventory · code 2E | Lead and Copper Rule Revisionscode 5200 | Yes | Addressed |
| 2024-10-17 | ReportingLSL Reporting · code 4G | Lead and Copper Rule Revisionscode 5200 | No | Addressed |
| 2024-10-01 | Monitoring and reportingFollow-up Or Routine LCR Tap M/R · code 52 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2023-04-01 | Monitoring and reportingMonitoring, Turbidity (Enhanced SWTR) · code 38 | Interim Enhanced Surface Water Treatment Rulecode 0300 | No | Resolved |
| 2023-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | 1,1,2-Trichloroethanecode 2985 | No | Archived |
| 2023-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Trichloroethylenecode 2984 | No | Archived |
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.
Mayes Co Rwd # 9: frequently asked questions
Who runs Mayes Co Rwd # 9?
Mayes Co Rwd # 9 (PWSID OK1021678) is a community water system owned by a local government. It is regulated by the OK state drinking water program.
How many people does Mayes Co Rwd # 9 serve?
Mayes Co Rwd # 9 reports serving 2,578 people through 930 service connections in Mayes County, Oklahoma.
Where does Mayes Co Rwd # 9 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 Mayes Co Rwd # 9 have any drinking water violations?
Of the 12 most recent violations in EPA's records, one is health-based, and the most recent began in January 2026. 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 Mayes Co Rwd # 9'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, one is health-based, and the most recent began in January 2026. For current results, consult the system's annual water quality report, EPA ECHO, or the OK state drinking water program.
Where can I find Mayes Co Rwd # 9's water quality report?
As a community water system, Mayes Co Rwd # 9 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 Mayes County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Pryor | Mayes | 8,784 | Community | Purchased surface water |
| Mayes Co Rwd # 2 | Mayes | 6,280 | Community | Purchased surface water |
| Mayes Co Rwd #4 | Mayes | 4,183 | Community | Purchased surface water |
| Okla Ordnance Works Authority | Mayes | 4,000 | Community | Surface water |
| Mayes Co Rwd # 6 | Mayes | 3,750 | Community | Surface water |
| Mayes Co Rwd # 5 | Mayes | 3,360 | 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, “Mayes Co Rwd # 9, PWSID OK1021678, Oklahoma”, https://aquacensus.com/water-systems/oklahoma/mayes-co-rwd-9-ok1021678 (data as of October 1, 2026).