Is EL DORADO WATERWORKS required to publish a Consumer Confidence Report?

Yes. EL DORADO WATERWORKS is a community water system, and federal rules (40 CFR 141 Subpart O) require every community water system to publish a Consumer Confidence Report each year.

When is EL DORADO WATERWORKS’s next Consumer Confidence Report due?

EL DORADO WATERWORKS’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.

What is a Consumer Confidence Report?

A Consumer Confidence Report (CCR) is the annual drinking water quality report that community water systems must provide to the people they serve. It lists the contaminants detected in the system’s water during the year, where the water comes from, and how the results compare with federal limits. EPA’s revised CCR rule takes effect January 1, 2027, and the first reports in the new format are due July 1, 2027.

EL DORADO, AR · Union County

EL DORADO WATERWORKS Water System

Consumer Confidence Report status

EL DORADO WATERWORKS must publish a Consumer Confidence Report — the annual drinking water quality report covering calendar year 2026 — by July 1, 2027.

As of August 1, 2026, EPA's federal records show no open violations for EL DORADO WATERWORKS.

Data sourced from the EPA ECHO database (SDWA bulk download), last refreshed August 1, 2026. This is a record-keeping and public-information tool — it does not replace Arkansas’s official records. Always confirm current status with Arkansas before making decisions based on this information.

System facts

System ID (PWSID): AR0000550
System type: Community Water System
Population served: 17,932
Service connections: 8,333
Ownership: local government
Water source: groundwater (wells)

EL DORADO WATERWORKS is one of 53 community water systems in Arkansas in the 10,001 to 100,000 people size category, serving 17,932 people from groundwater.

As of August 1, 2026, its federal record holds 9 entries between 2003 and 2025, all of which EPA lists as closed.

Of the 9, 1 are monitoring and reporting requirements — the category that accounts for about four in five of all violations in EPA's national dataset — rather than findings about the water itself. The record involves the Total Coliform Rules, inorganic chemicals, and the Stage 2 Disinfectants and Disinfection Byproducts Rule.

Violation history

Maximum Contaminant Level Violation, Average
Health-based
TTHM
October 1, 2025 – December 31, 2025
Archived
Maximum Contaminant Level Violation, Average
Health-based
TTHM
July 1, 2025 – September 30, 2025
Archived
Monitoring, Routine (RTCR)
—
Revised Total Coliform Rule
November 1, 2022 – November 30, 2022
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Asbestos
January 1, 2021 – March 31, 2021
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Asbestos
October 1, 2020 – December 31, 2020
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Asbestos
July 1, 2020 – September 30, 2020
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
November 1, 2007 – November 30, 2007
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
July 1, 2007 – July 31, 2007
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
August 1, 2003 – August 31, 2003
Resolved

Archived closed in EPA's records (typically due to age or a data correction)Resolved addressed and confirmed by the state

Period	Violation	Contaminant / rule	Health-based	Status
October 1, 2025 – December 31, 2025	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Archived
July 1, 2025 – September 30, 2025	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Archived
November 1, 2022 – November 30, 2022	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	—	Resolved
January 1, 2021 – March 31, 2021	Maximum Contaminant Level Violation, Average	Asbestos	Health-based	Resolved
October 1, 2020 – December 31, 2020	Maximum Contaminant Level Violation, Average	Asbestos	Health-based	Resolved
July 1, 2020 – September 30, 2020	Maximum Contaminant Level Violation, Average	Asbestos	Health-based	Resolved
November 1, 2007 – November 30, 2007	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
July 1, 2007 – July 31, 2007	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
August 1, 2003 – August 31, 2003	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved

Archived closed in EPA's records (typically due to age or a data correction)Resolved addressed and confirmed by the state

Enforcement actions

No enforcement actions on record for this system.

Common questions

Is EL DORADO WATERWORKS required to publish a Consumer Confidence Report?: Yes. EL DORADO WATERWORKS is a community water system, and federal rules (40 CFR 141 Subpart O) require every community water system to publish a Consumer Confidence Report each year.
When is EL DORADO WATERWORKS’s next Consumer Confidence Report due?: EL DORADO WATERWORKS’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does EL DORADO WATERWORKS have any open drinking water violations on record?: As of August 1, 2026, EPA's federal records show no open violations for EL DORADO WATERWORKS.
What is a Consumer Confidence Report?: A Consumer Confidence Report (CCR) is the annual drinking water quality report that community water systems must provide to the people they serve. It lists the contaminants detected in the system’s water during the year, where the water comes from, and how the results compare with federal limits. EPA’s revised CCR rule takes effect January 1, 2027, and the first reports in the new format are due July 1, 2027.

Contact

MCMAHAN, MICHAEL

870-862-1912

EL DORADO, AR 71730