Public water system · OK1021504
ActiveChelsea Economic Dev. Auth.
At a glance
Chelsea Economic Dev. Auth. (PWSID OK1021504) is an active community water system in Rogers County, Oklahoma. It reports serving 1,964 people through 1,117 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, none is health-based, and the most recent began in February 2019.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
1,964
Service connections
1,117
Primary source
SW
Surface water
System type
CWS
Community water system
System record
How does Chelsea Economic Dev. Auth. compare with other water systems in Rogers County?
By EPA's size categories, Chelsea Economic Dev. Auth. is a small system (501 to 3,300 people). Rogers County has 15 active public water systems. Its population served is about 61% below the county average of 5,014 people per system, and accounts for 2.6% of the 75,204 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 Chelsea Economic Dev. Auth. 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. 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 Chelsea Economic Dev. Auth.?
EPA lists Chelsea Economic Dev. Auth. 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. 14 of the 15 active systems in Rogers County (93%) are also owned by a local government.
Does Chelsea Economic Dev. Auth. have drinking water violations?
Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in February 2019. The violations listed here began between January 2014 and February 2019. By type: 12 monitoring and reporting. The contaminants or rules involved are Interim Enhanced Surface Water Treatment Rule, Nitrate-Nitrite, Total coliform bacteria (TCR) and Carbon tetrachloride. 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 |
|---|---|---|---|---|
| 2019-02-01 | Monitoring and reportingMonitoring, Turbidity (Enhanced SWTR) · code 38 | Interim Enhanced Surface Water Treatment Rulecode 0300 | No | Resolved |
| 2016-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitrate-Nitritecode 1038 | No | Resolved |
| 2014-11-01 | Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2014-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Carbon tetrachloridecode 2982 | No | Resolved |
| 2014-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Dichloromethanecode 2964 | No | Resolved |
| 2014-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | cis-1,2-Dichloroethylenecode 2380 | No | Resolved |
| 2014-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | 1,1-Dichloroethylenecode 2977 | No | Resolved |
| 2014-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | 1,1,1-Trichloroethanecode 2981 | No | Resolved |
| 2014-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | 1,1,2-Trichloroethanecode 2985 | No | Resolved |
| 2014-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | p-Dichlorobenzenecode 2969 | No | Resolved |
| 2014-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Styrenecode 2996 | No | Resolved |
| 2014-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Trichloroethylenecode 2984 | 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.
Chelsea Economic Dev. Auth.: frequently asked questions
Who runs Chelsea Economic Dev. Auth.?
Chelsea Economic Dev. Auth. (PWSID OK1021504) is a community water system owned by a local government. It is regulated by the OK state drinking water program.
How many people does Chelsea Economic Dev. Auth. serve?
Chelsea Economic Dev. Auth. reports serving 1,964 people through 1,117 service connections in Rogers County, Oklahoma.
Where does Chelsea Economic Dev. Auth. 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 Chelsea Economic Dev. Auth. 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 February 2019. 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 Chelsea Economic Dev. Auth.'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 February 2019. For current results, consult the system's annual water quality report, EPA ECHO, or the OK state drinking water program.
Where can I find Chelsea Economic Dev. Auth.'s water quality report?
As a community water system, Chelsea Economic Dev. Auth. 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 Rogers County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Claremore | Rogers | 15,873 | Community | Surface water |
| Rogers Co Rwd # 5 | Rogers | 11,782 | Community | Surface water |
| Rogers Co Rwd # 3 Cot Sta | Rogers | 10,750 | Community | Purchased surface water |
| Rogers Co Rwd # 3 Lake Plant | Rogers | 10,470 | Community | Surface water |
| Rogers Co Rwd # 4 | Rogers | 7,725 | Community | Surface water |
| Rogers Co Rwd # 8 | Rogers | 3,375 | Community | Purchased surface water |
Related pages
Working with water-system records? Pro adds alerts, change history and CSV export ($49/mo); Enterprise adds full national files, the API and an MCP server for AI tools.
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, “Chelsea Economic Dev. Auth., PWSID OK1021504, Oklahoma”, https://aquacensus.com/water-systems/oklahoma/chelsea-economic-dev-auth-ok1021504 (data as of October 1, 2026).