Is MAYES CO RWD #4 required to publish a Consumer Confidence Report?

Yes. MAYES CO RWD #4 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 MAYES CO RWD #4’s next Consumer Confidence Report due?

MAYES CO RWD #4’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.

PRYOR, OK · Mayes County

MAYES CO RWD #4 Water System

Consumer Confidence Report status

MAYES CO RWD #4 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 1 open health-based violation for MAYES CO RWD #4.

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 Oklahoma’s official records. Always confirm current status with Oklahoma before making decisions based on this information.

System facts

System ID (PWSID): OK3004617
System type: Community Water System
Population served: 4,183
Service connections: 1,789
Ownership: local government
Water source: surface water (rivers, lakes, or reservoirs)

MAYES CO RWD #4 is one of 106 community water systems in Oklahoma in the 3,301 to 10,000 people size category, serving 4,183 people from surface water.

As of August 1, 2026, its federal record holds 4 entries between 1995 and 2025, of which 1 health-based item remains open.

Of the 4, 2 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 Lead and Copper Rule and the Total Coliform Rules.

Violation history

Follow-up Or Routine LCR Tap M/R
—
Lead and Copper Rule
July 1, 2025 – December 10, 2025
Resolved
LSL Inventory
Health-based
LEAD AND COPPER RULE REVISIONS
October 17, 2024
Addressed
Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
August 1, 1997 – August 31, 1997
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
August 1, 1995 – August 31, 1995
Resolved

Resolved addressed and confirmed by the stateAddressed corrective action reported, pending final confirmation

Period	Violation	Contaminant / rule	Health-based	Status
July 1, 2025 – December 10, 2025	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	—	Resolved
October 17, 2024	LSL Inventory	LEAD AND COPPER RULE REVISIONS	Health-based	Addressed
August 1, 1997 – August 31, 1997	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Resolved
August 1, 1995 – August 31, 1995	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved

Resolved addressed and confirmed by the stateAddressed corrective action reported, pending final confirmation

Enforcement actions

August 13, 2025State Public Notification requested4 linked violations
July 16, 2025State Public Notification received2 linked violations
July 11, 2025State Violation/Reminder Notice2 linked violations
July 11, 2025State Violation/Reminder Notice2 linked violations
July 1, 2025State Compliance achieved2 linked violations
December 10, 2024State Compliance achieved3 linked violations
November 5, 2024State Compliance achieved1 linked violation
August 21, 2024State Public Notification requested7 linked violations
November 30, 2023State Public Notification requested3 linked violations
August 4, 2016State Compliance achieved6 linked violations
July 1, 2005State Compliance achieved3 linked violations

Common questions

Is MAYES CO RWD #4 required to publish a Consumer Confidence Report?: Yes. MAYES CO RWD #4 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 MAYES CO RWD #4’s next Consumer Confidence Report due?: MAYES CO RWD #4’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does MAYES CO RWD #4 have any open drinking water violations on record?: As of August 1, 2026, EPA's federal records show 1 open health-based violation for MAYES CO RWD #4.
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

MAYES CO RWD # 4

918-825-4661

PRYOR, OK 74361