Public water system · OK2000930
ActiveCanadian Co Rwd # 4
At a glance
Canadian Co Rwd # 4 (PWSID OK2000930) is an active community water system in Canadian County, Oklahoma. It reports serving 907 people through 465 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, none is health-based, and the most recent began in March 2024.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
907
Service connections
465
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Canadian Co Rwd # 4 compare with other water systems in Canadian County?
By EPA's size categories, Canadian Co Rwd # 4 is a small system (501 to 3,300 people). Canadian County has 18 active public water systems, and Canadian Co Rwd # 4 is the 6th-largest of them by population served. Its population served is well below the county average of 3,962 people per system, and accounts for 1.3% of the 71,324 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 Canadian Co Rwd # 4 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. 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 Canadian Co Rwd # 4?
EPA lists Canadian Co Rwd # 4 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. 10 of the 18 active systems in Canadian County (56%) are also owned by a local government.
Does Canadian Co Rwd # 4 have drinking water violations?
Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in March 2024. The violations listed here began between September 1992 and March 2024. By type: 12 monitoring and reporting. The contaminant or rule involved most often is Total coliform bacteria (TCR) (6 of them). EPA lists 11 as resolved and 1 as unaddressed. 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. Unaddressed means the violation is not resolved or archived and is not yet covered by formal enforcement.
| Began | Violation | Contaminant or rule | Health-based | Status |
|---|---|---|---|---|
| 2024-03-29 | Monitoring and reportingMonitoring, Source Water (GWR) · code 34 | E. colicode 3014 | No | Unaddressed |
| 2008-10-01 | Monitoring and reportingMonitoring, Routine (IDSE) · code 30 | Haloacetic acids (HAA5)code 2456 | No | Resolved |
| 2006-07-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2004-06-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2004-01-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2001-04-01 | Monitoring and reportingMonitoring, Regular · code 03 | Gross Beta Particle Activitycode 4100 | No | Resolved |
| 2001-04-01 | Monitoring and reportingMonitoring, Regular · code 03 | Gross alpha (excluding radon and uranium)code 4000 | No | Resolved |
| 2001-04-01 | Monitoring and reportingMonitoring, Regular · code 03 | Combined Radium (-226 and -228)code 4010 | No | Resolved |
| 1999-03-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 1998-10-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 1993-06-01 | Monitoring and reportingInitial Tap Sampling for Pb and Cu · code 51 | Lead and Copper Rulecode 5000 | No | Resolved |
| 1992-09-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | 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.
Canadian Co Rwd # 4: frequently asked questions
Who runs Canadian Co Rwd # 4?
Canadian Co Rwd # 4 (PWSID OK2000930) is a community water system owned by a local government. It is regulated by the OK state drinking water program.
How many people does Canadian Co Rwd # 4 serve?
Canadian Co Rwd # 4 reports serving 907 people through 465 service connections in Canadian County, Oklahoma.
Where does Canadian Co Rwd # 4 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 Canadian Co Rwd # 4 have any drinking water violations?
Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in March 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 Canadian Co Rwd # 4'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, none is health-based, and the most recent began in March 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 Canadian Co Rwd # 4's water quality report?
As a community water system, Canadian Co Rwd # 4 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 Canadian County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Yukon | Canadian | 22,498 | Community | Purchased surface water |
| Mustang, City of | Canadian | 18,576 | Community | Purchased surface water |
| El Reno | Canadian | 16,212 | Community | Purchased surface water |
| Piedmont Municipal Authority | Canadian | 7,542 | Community | Purchased surface water |
| Canadian Co Water Authority | Canadian | 1,700 | Community | Purchased surface water |
| Canadian Co Rwd # 1 | Canadian | 750 | 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, “Canadian Co Rwd # 4, PWSID OK2000930, Oklahoma”, https://aquacensus.com/water-systems/oklahoma/canadian-co-rwd-4-ok2000930 (data as of October 1, 2026).