Public water system · OK2003511
ActiveJohnston Co Rwd #3
At a glance
Johnston Co Rwd #3 (PWSID OK2003511) is an active community water system in Johnston County, Oklahoma. It reports serving 2,783 people through 1,298 service connections. Its primary water source is groundwater, 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 October 2024.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
2,783
Service connections
1,298
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Johnston Co Rwd #3 compare with other water systems in Johnston County?
By EPA's size categories, Johnston Co Rwd #3 is a small system (501 to 3,300 people). Johnston County has 13 active public water systems, and Johnston Co Rwd #3 is the 2nd-largest of them by population served. Its population served is about 3.5 times the county average of 792 people per system, and accounts for 27% of the 10,296 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 Johnston Co Rwd #3 is about 58% 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. Groundwater means the system draws its water from wells or springs fed by underground aquifers. 701 Oklahoma systems (56%) list groundwater as their primary source.
Who owns and regulates Johnston Co Rwd #3?
EPA lists Johnston Co Rwd #3 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. 9 of the 13 active systems in Johnston County (69%) are also owned by a local government.
Does Johnston Co Rwd #3 have drinking water violations?
Of the 12 most recent violations in EPA's records, one is health-based, and the most recent began in October 2024. The violations listed here began between October 2009 and October 2024. By type: 10 monitoring and reporting, 1 required treatment not met and 1 reporting. The contaminant or rule involved most often is Lead and Copper Rule Revisions (2 of them). EPA lists 12 as resolved. 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 |
|---|---|---|---|---|
| 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 |
| 2023-04-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Chlorinecode 0999 | No | Resolved |
| 2010-01-01 | Monitoring and reportingMonitoring, Source Water (GWR) · code 34 | E. colicode 3014 | No | Resolved |
| 2009-10-01 | Monitoring and reportingMonitoring, Regular · code 03 | Carbon tetrachloridecode 2982 | No | Resolved |
| 2009-10-01 | Monitoring and reportingMonitoring, Regular · code 03 | 1,2-Dichloropropanecode 2983 | No | Resolved |
| 2009-10-01 | Monitoring and reportingMonitoring, Regular · code 03 | Toluenecode 2991 | No | Resolved |
| 2009-10-01 | Monitoring and reportingMonitoring, Regular · code 03 | cis-1,2-Dichloroethylenecode 2380 | No | Resolved |
| 2009-10-01 | Monitoring and reportingMonitoring, Regular · code 03 | Styrenecode 2996 | No | Resolved |
| 2009-10-01 | Monitoring and reportingMonitoring, Regular · code 03 | Dichloromethanecode 2964 | No | Resolved |
| 2009-10-01 | Monitoring and reportingMonitoring, Regular · code 03 | o-Dichlorobenzenecode 2968 | No | Resolved |
| 2009-10-01 | Monitoring and reportingMonitoring, Regular · code 03 | 1,1,2-Trichloroethanecode 2985 | 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.
Johnston Co Rwd #3: frequently asked questions
Who runs Johnston Co Rwd #3?
Johnston Co Rwd #3 (PWSID OK2003511) is a community water system owned by a local government. It is regulated by the OK state drinking water program.
How many people does Johnston Co Rwd #3 serve?
Johnston Co Rwd #3 reports serving 2,783 people through 1,298 service connections in Johnston County, Oklahoma.
Where does Johnston Co Rwd #3 get its water?
EPA SDWIS lists this system's primary water source as groundwater. Groundwater means the system draws its water from wells or springs fed by underground aquifers.
Does Johnston Co Rwd #3 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 October 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 Johnston Co Rwd #3'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 October 2024. For current results, consult the system's annual water quality report, EPA ECHO, or the OK state drinking water program.
Where can I find Johnston Co Rwd #3's water quality report?
As a community water system, Johnston Co Rwd #3 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 Johnston County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Tishomingo Municipal Authority | Johnston | 3,000 | Community | Surface water |
| Murray State College | Johnston | 1,150 | Community | Surface water |
| Johnston Co Rws& Swmd #4 | Johnston | 600 | Community | Groundwater |
| Mannsville Public Works Authority | Johnston | 587 | Community | Groundwater |
| Ravia | Johnston | 459 | Community | Groundwater |
| Sundowner Trailer | Johnston | 450 | Non-transient non-community | Groundwater |
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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, “Johnston Co Rwd #3, PWSID OK2003511, Oklahoma”, https://aquacensus.com/water-systems/oklahoma/johnston-co-rwd-3-ok2003511 (data as of October 1, 2026).