Public water system · OK3005321
ActiveNowata Co Rwd #7
At a glance
Nowata Co Rwd #7 (PWSID OK3005321) is an active community water system in Nowata County, Oklahoma. It reports serving 1,050 people through 568 service connections. Its primary water source is purchased surface water, and EPA lists it as owned by a local government. Of the 12 most recent violations in EPA's records, 2 are health-based, and the most recent began in December 2025.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
1,050
Service connections
568
Primary source
SWP
Purchased surface water
System type
CWS
Community water system
System record
How does Nowata Co Rwd #7 compare with other water systems in Nowata County?
By EPA's size categories, Nowata Co Rwd #7 is a small system (501 to 3,300 people). Nowata County has 12 active public water systems, and Nowata Co Rwd #7 is the 3rd-largest of them by population served. Its population served is about 24% above the county average of 850 people per system, and accounts for 10% of the 10,195 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 Nowata Co Rwd #7 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 surface water means the system buys surface water from another public water system rather than drawing its own. 299 Oklahoma systems (24%) list purchased surface water as their primary source.
Who owns and regulates Nowata Co Rwd #7?
EPA lists Nowata Co Rwd #7 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. 12 of the 12 active systems in Nowata County (100%) are also owned by a local government.
Does Nowata Co Rwd #7 have drinking water violations?
Of the 12 most recent violations in EPA's records, 2 are health-based, and the most recent began in December 2025. The violations listed here began between October 2024 and December 2025. By type: 8 monitoring and reporting, 1 public notice, recordkeeping or other, 1 contaminant level above the legal limit, 1 required treatment not met and 1 reporting. The contaminant or rule involved most often is Haloacetic acids (HAA5) (4 of them). EPA lists 9 as addressed and 3 as resolved. Addressed means the violation is not resolved or archived and is covered by formal enforcement. 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.
| 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 | Addressed |
| 2025-12-30 | Monitoring and reportingFailure Submit IDSE/Subpart V Plan Rpt · code 35 | Haloacetic acids (HAA5)code 2456 | No | Addressed |
| 2025-07-01 | Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71 | Consumer Confidence Rulecode 7000 | No | Addressed |
| 2025-07-01 | Monitoring and reportingFollow-up Or Routine LCR Tap M/R · code 52 | Lead and Copper Rulecode 5000 | No | Addressed |
| 2025-04-01 | Monitoring and reportingFailure Submit IDSE/Subpart V Plan Rpt · code 35 | Total trihalomethanes (TTHM)code 2950 | No | Addressed |
| 2025-04-01 | Monitoring and reportingFailure Submit IDSE/Subpart V Plan Rpt · code 35 | Haloacetic acids (HAA5)code 2456 | No | Addressed |
| 2025-01-01 | Monitoring and reportingFollow-up Or Routine LCR Tap M/R · code 52 | Lead and Copper Rulecode 5000 | No | Addressed |
| 2025-01-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Haloacetic acids (HAA5)code 2456 | Yes | Resolved |
| 2024-12-30 | Monitoring and reportingFailure Submit IDSE/Subpart V Plan Rpt · code 35 | Total trihalomethanes (TTHM)code 2950 | No | Addressed |
| 2024-12-30 | Monitoring and reportingFailure Submit IDSE/Subpart V Plan Rpt · code 35 | Haloacetic acids (HAA5)code 2456 | No | Addressed |
| 2024-10-17 | Required treatment not metLSL Inventory · code 2E | Lead and Copper Rule Revisionscode 5200 | Yes | Resolved |
| 2024-10-17 | ReportingLSL Reporting · code 4G | Lead and Copper Rule Revisionscode 5200 | 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.
Nowata Co Rwd #7: frequently asked questions
Who runs Nowata Co Rwd #7?
Nowata Co Rwd #7 (PWSID OK3005321) is a community water system owned by a local government. It is regulated by the OK state drinking water program.
How many people does Nowata Co Rwd #7 serve?
Nowata Co Rwd #7 reports serving 1,050 people through 568 service connections in Nowata County, Oklahoma.
Where does Nowata Co Rwd #7 get its water?
EPA SDWIS lists this system's primary water source as purchased surface water. Purchased surface water means the system buys surface water from another public water system rather than drawing its own.
Does Nowata Co Rwd #7 have any drinking water violations?
Of the 12 most recent violations in EPA's records, 2 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 Nowata Co Rwd #7'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, 2 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 Nowata Co Rwd #7's water quality report?
As a community water system, Nowata Co Rwd #7 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 Nowata County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Nowata Municipal Authority | Nowata | 3,971 | Community | Surface water |
| Consolidated Rwd #1 Nowata and Rogers Co | Nowata | 1,580 | Community | Purchased surface water |
| South Coffeyville | Nowata | 790 | Community | Purchased surface water |
| Elm Bend Rwd Inc. | Nowata | 600 | Community | Purchased surface water |
| Nowata Co Rw & S Dist #1 | Nowata | 500 | Community | Purchased surface water |
| Delaware | Nowata | 456 | 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, “Nowata Co Rwd #7, PWSID OK3005321, Oklahoma”, https://aquacensus.com/water-systems/oklahoma/nowata-co-rwd-7-ok3005321 (data as of October 1, 2026).