Public water system · OK1010814

Active

Ardmore

At a glance

Ardmore (PWSID OK1010814) is an active community water system in Carter County, Oklahoma. It reports serving 24,893 people through 11,921 service connections. Its primary water source is surface water, and EPA lists it as owned by a local government. Of the 12 most recent violations in EPA's records, 9 are health-based, and the most recent began in May 2024.

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

Population served

24,893

Service connections

11,921

Primary source

Surface water

System type

CWS

Community water system

System record

PWSIDOK1010814

System typeCommunity water system

Activity statusActive

Population served24,893

Service connections11,921

Primary water sourceSurface water

Owner typeLocal government

Primacy agencyOK state drinking water program

City served—

StateOklahoma

ZIP—

CountyCarter County

How does Ardmore compare with other water systems in Carter County?

By EPA's size categories, Ardmore is a large system (10,001 to 100,000 people). Carter County has 8 active public water systems, and Ardmore is the largest of them by population served. Its population served is about 4.2 times the county average of 5,957 people per system, and accounts for 52% of the 47,657 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 Ardmore is about 3.7 times 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. Surface water means the system draws its water from rivers, lakes, streams or reservoirs. 175 Oklahoma systems (14%) list surface water as their primary source.

Who owns and regulates Ardmore?

EPA lists Ardmore 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. 7 of the 8 active systems in Carter County (88%) are also owned by a local government.

Does Ardmore have drinking water violations?

Of the 12 most recent violations in EPA's records, 9 are health-based, and the most recent began in May 2024. The violations listed here began between December 2013 and May 2024. By type: 7 required treatment not met, 3 monitoring and reporting and 2 contaminant level above the legal limit. The contaminant or rule involved most often is Carbon, total (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
2024-05-01	Required treatment not metMonthly Turbidity Exceed (Enhanced SWTR) · code 44	Interim Enhanced Surface Water Treatment Rulecode 0300	Yes	Resolved
2021-01-01	Required treatment not metTreatment Technique Precursor Removal · code 46	Carbon, totalcode 2920	Yes	Resolved
2020-10-01	Required treatment not metTreatment Technique Precursor Removal · code 46	Carbon, totalcode 2920	Yes	Resolved
2020-01-01	Monitoring and reportingMonitoring, Regular · code 03	2,4-Dcode 2105	No	Resolved
2019-01-01	Monitoring and reportingMonitoring, Regular · code 03	2,4-Dcode 2105	No	Resolved
2018-01-01	Required treatment not metTreatment Technique (SWTR and GWR) · code 41	Surface Water Treatment Rulecode 0200	Yes	Resolved
2017-10-01	Required treatment not metTreatment Technique Precursor Removal · code 46	Carbon, totalcode 2920	Yes	Resolved
2017-07-01	Required treatment not metTreatment Technique Precursor Removal · code 46	Carbon, totalcode 2920	Yes	Resolved
2016-01-01	Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02	Total trihalomethanes (TTHM)code 2950	Yes	Resolved
2016-01-01	Required treatment not metMonthly Turbidity Exceed (Enhanced SWTR) · code 44	Interim Enhanced Surface Water Treatment Rulecode 0300	Yes	Resolved
2015-10-01	Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02	Total trihalomethanes (TTHM)code 2950	Yes	Resolved
2013-12-01	Monitoring and reportingMonitoring and Reporting (DBP) · code 27	Haloacetic acids (HAA5)code 2456	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.

Ardmore: frequently asked questions

Who runs Ardmore?

Ardmore (PWSID OK1010814) is a community water system owned by a local government. It is regulated by the OK state drinking water program.

How many people does Ardmore serve?

Ardmore reports serving 24,893 people through 11,921 service connections in Carter County, Oklahoma.

Where does Ardmore get its water?

EPA SDWIS lists this system's primary water source as surface water. Surface water means the system draws its water from rivers, lakes, streams or reservoirs.

Does Ardmore have any drinking water violations?

Of the 12 most recent violations in EPA's records, 9 are health-based, and the most recent began in May 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 Ardmore'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, 9 are health-based, and the most recent began in May 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 Ardmore's water quality report?

As a community water system, Ardmore 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 Carter County

Water system	County	Population served	Type	Source
Southern Okla Water Corp	Carter	11,250	Community	Surface water
Lone Grove	Carter	4,863	Community	Groundwater
Healdton	Carter	2,785	Community	Surface water
Western Carter Co Water Corp	Carter	2,000	Community	Purchased surface water
Wilson Municipal Authority	Carter	1,600	Community	Groundwater
Golden Oaks Home Owners Assn	Carter	135	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, “Ardmore, PWSID OK1010814, Oklahoma”, https://aquacensus.com/water-systems/oklahoma/ardmore-ok1010814 (data as of October 1, 2026).