Public water system · OK3000903

Active

Canadian Co Water Authority

At a glance

Canadian Co Water Authority (PWSID OK3000903) is an active community water system in Canadian County, Oklahoma. It reports serving 1,700 people through 845 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, one is health-based, and the most recent began in October 2024.

Dataset updated October 2026 . Source: EPA SDWIS/ECHO public records.

Population served

1,700

Service connections

845

Primary source

SWP

Purchased surface water

System type

CWS

Community water system

System record

PWSIDOK3000903

System typeCommunity water system

Activity statusActive

Population served1,700

Service connections845

Primary water sourcePurchased surface water

Owner typeLocal government

Primacy agencyOK state drinking water program

City served—

StateOklahoma

ZIP—

CountyCanadian County

How does Canadian Co Water Authority compare with other water systems in Canadian County?

By EPA's size categories, Canadian Co Water Authority is a small system (501 to 3,300 people). Canadian County has 18 active public water systems, and Canadian Co Water Authority is the 5th-largest of them by population served. Its population served is about 57% below the county average of 3,962 people per system, and accounts for 2.4% 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 Water Authority 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 Canadian Co Water Authority?

EPA lists Canadian Co Water 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. 10 of the 18 active systems in Canadian County (56%) are also owned by a local government.

Does Canadian Co Water Authority 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 March 2000 and October 2024. By type: 8 monitoring and reporting, 2 public notice, recordkeeping or other, 1 required treatment not met and 1 reporting. The contaminant or rule involved most often is Total coliform bacteria (TCR) (4 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
2016-07-01	Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71	Consumer Confidence Rulecode 7000	No	Resolved
2014-07-01	Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71	Consumer Confidence Rulecode 7000	No	Resolved
2008-10-01	Monitoring and reportingMonitoring, Routine (IDSE) · code 30	Haloacetic acids (HAA5)code 2456	No	Resolved
2008-10-01	Monitoring and reportingMonitoring, Routine (IDSE) · code 30	Total trihalomethanes (TTHM)code 2950	No	Resolved
2007-10-01	Monitoring and reportingMonitoring, Routine (IDSE) · code 30	Total trihalomethanes (TTHM)code 2950	No	Resolved
2007-10-01	Monitoring and reportingMonitoring, Routine (IDSE) · code 30	Haloacetic acids (HAA5)code 2456	No	Resolved
2002-04-01	Monitoring and reportingMonitoring, Repeat Minor (TCR) · code 26	Total coliform bacteria (TCR)code 3100	No	Resolved
2000-05-01	Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24	Total coliform bacteria (TCR)code 3100	No	Resolved
2000-04-01	Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24	Total coliform bacteria (TCR)code 3100	No	Resolved
2000-03-01	Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24	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 Water Authority: frequently asked questions

Who runs Canadian Co Water Authority?

Canadian Co Water Authority (PWSID OK3000903) 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 Water Authority serve?

Canadian Co Water Authority reports serving 1,700 people through 845 service connections in Canadian County, Oklahoma.

Where does Canadian Co Water Authority 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 Canadian Co Water Authority 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 Canadian Co Water 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, 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 Canadian Co Water Authority's water quality report?

As a community water system, Canadian Co Water 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 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 Rwd # 4	Canadian	907	Community	Groundwater
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 Water Authority, PWSID OK3000903, Oklahoma”, https://aquacensus.com/water-systems/oklahoma/canadian-co-water-authority-ok3000903 (data as of October 1, 2026).