Public water system · OK2004203

Active

Coyle

At a glance

Coyle (PWSID OK2004203) is an active community water system in Logan County, Oklahoma. It reports serving 289 people through 182 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, 6 are health-based, and the most recent began in July 2025.

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

Population served

289

Service connections

182

Primary source

SWP

Purchased surface water

System type

CWS

Community water system

System record

PWSIDOK2004203

System typeCommunity water system

Activity statusActive

Population served289

Service connections182

Primary water sourcePurchased surface water

Owner typeLocal government

Primacy agencyOK state drinking water program

City served—

StateOklahoma

ZIP—

CountyLogan County

How does Coyle compare with other water systems in Logan County?

By EPA's size categories, Coyle is a very small system (500 people or fewer). Logan County has 30 active public water systems. Its population served is well below the county average of 919 people per system, and accounts for 1% of the 27,575 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 Coyle 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 Coyle?

EPA lists Coyle 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 30 active systems in Logan County (33%) are also owned by a local government.

Does Coyle have drinking water violations?

Of the 12 most recent violations in EPA's records, 6 are health-based, and the most recent began in July 2025. The violations listed here began between January 2014 and July 2025. By type: 6 contaminant level above the legal limit, 5 monitoring and reporting and 1 public notice, recordkeeping or other. The contaminant or rule involved most often is Combined Uranium (6 of them). EPA lists 9 as resolved, 2 as archived 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. 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.

Began	Violation	Contaminant or rule	Health-based	Status
2025-07-01	Monitoring and reportingMonitoring and Reporting (DBP) · code 27	Total trihalomethanes (TTHM)code 2950	No	Archived
2025-07-01	Monitoring and reportingMonitoring and Reporting (DBP) · code 27	Haloacetic acids (HAA5)code 2456	No	Archived
2017-07-01	Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71	Consumer Confidence Rulecode 7000	No	Resolved
2017-04-01	Monitoring and reportingMonitoring and Reporting (DBP) · code 27	Chlorinecode 0999	No	Resolved
2017-01-01	Monitoring and reportingMonitoring and Reporting (DBP) · code 27	Chlorinecode 0999	No	Resolved
2015-04-01	Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02	Combined Uraniumcode 4006	Yes	Resolved
2015-01-29	Monitoring and reportingMonitoring, Source Water (GWR) · code 34	E. colicode 3014	No	Unaddressed
2015-01-01	Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02	Combined Uraniumcode 4006	Yes	Resolved
2014-10-01	Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02	Combined Uraniumcode 4006	Yes	Resolved
2014-07-01	Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02	Combined Uraniumcode 4006	Yes	Resolved
2014-04-01	Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02	Combined Uraniumcode 4006	Yes	Resolved
2014-01-01	Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02	Combined Uraniumcode 4006	Yes	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.

Coyle: frequently asked questions

Who runs Coyle?

Coyle (PWSID OK2004203) is a community water system owned by a local government. It is regulated by the OK state drinking water program.

How many people does Coyle serve?

Coyle reports serving 289 people through 182 service connections in Logan County, Oklahoma.

Where does Coyle 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 Coyle have any drinking water violations?

Of the 12 most recent violations in EPA's records, 6 are health-based, and the most recent began in July 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 Coyle'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, 6 are health-based, and the most recent began in July 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 Coyle's water quality report?

As a community water system, Coyle 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 Logan County

Water system	County	Population served	Type	Source
Guthrie	Logan	9,925	Community	Surface water
Logan Co Rwd #1	Logan	8,907	Community	Purchased surface water
Langston Pwa	Logan	1,670	Community	Surface water
Logan Co Rws & Swmd #3	Logan	1,618	Community	Groundwater
Crescent	Logan	1,411	Community	Groundwater
Logan Co Rwd #2	Logan	1,146	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, “Coyle, PWSID OK2004203, Oklahoma”, https://aquacensus.com/water-systems/oklahoma/coyle-ok2004203 (data as of October 1, 2026).