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Community Water System · PWS OK1021640

Mayes Co RWD # 3

Disney, Oklahoma 74340 - drinking water served from surface water sources to 2,400 people, tracked in EPA SDWIS and UCMR5.

2,400
People served
228
EPA violations
82
Health-based
Untested
UCMR5 result

The verdict

EPA records 228 drinking-water violations at Mayes Co RWD # 3, 36% of them health-based - below the Oklahoma per-system average.

228
Total EPA violations on record
36%
Health-based (MCL / treatment failure)
2,400
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Mayes Co RWD # 3

Mayes Co RWD # 3 is a local-owned community water system that delivers drinking water to 2,400 residents in Disney, Oklahoma (Mayes County) through 1,386 service connections. Its water is drawn from surface water sources. EPA's Safe Drinking Water Information System records 228 total violations for this system , of which 82 (36%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 112 monitoring and reporting violations are on file. The most recent violation on record dates to 2024.

The most frequently cited contaminant at this system is Total Haloacetic Acids (HAA5), recorded in 32 violations (MCL, health-based). This system has not yet been sampled under EPA's UCMR5 PFAS monitoring program, so no PFAS detection data is available here.

Across Oklahoma, EPA tracks 1,262 public water systems serving 3,699,452 people, with 336,706 cumulative violations and 113,804 health-based violations on record. About 98% of systems in the state carry at least one violation, and state-wide the average per system is 266.8 violations. Statewide, 101 of 166 UCMR5-tested systems have reported PFAS detections (60.8%).

Mayes Co RWD # 3's 228 violations sit below the Oklahoma average.

All figures above are sourced directly from EPA SDWIS and UCMR5 public data releases and are updated as EPA publishes new reporting cycles.

Population Served
2,400
Total Violations
228
Health-Based Violations
82
Water Source
Surface Water

System Details

System Type
Community
Owner Type
Local
Connections
1,386
County
Mayes
School/Daycare
No
MCL Violations
56
Monitoring Violations
112
Treatment Tech Violations
26

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Total Haloacetic Acids (HAA5) MCL 32 2015
TTHM MCL 24 2015
CARBON, TOTAL TT 16 2016
Surface Water Treatment Rule TT 4 2003
Coliform (TCR) MR 4 2005
Nitrate-Nitrite MR 4 2007
cis-1,2-Dichloroethylene MR 4 2014
Xylenes, Total MR 4 2014
DICHLOROMETHANE MR 4 2014
o-Dichlorobenzene MR 4 2014
p-Dichlorobenzene MR 4 2014
Vinyl chloride MR 4 2014
1,1-Dichloroethylene MR 4 2014
trans-1,2-Dichloroethylene MR 4 2014
1,2-Dichloroethane MR 4 2014
1,1,1-Trichloroethane MR 4 2014
Carbon tetrachloride MR 4 2014
1,2-Dichloropropane MR 4 2014
Tetrachloroethylene MR 4 2014
Benzene MR 4 2014
Toluene MR 4 2014
Interim Enhanced Surface Water Treatment Rule MR 4 2021
Atrazine MR 4 2024
Interim Enhanced Surface Water Treatment Rule TT 4 2010
CARBON, TOTAL MR 4 2009
Trichloroethylene MR 4 2014
1,2,4-Trichlorobenzene MR 4 2014
1,1,2-Trichloroethane MR 4 2014
Lead and Copper Rule MR 4 2024
Styrene MR 4 2014

Verify This Water System

The figures above are aggregated from EPA's public databases. To verify the underlying records, or to file a complaint, request a Consumer Confidence Report, or check current monitoring status, go directly to the federal and state regulators that enforce the Safe Drinking Water Act for Mayes Co RWD # 3.

Federal Source of Truth

EPA SDWIS, Federal Reports

EPA's Safe Drinking Water Information System (SDWIS) holds the federal compliance record for every regulated public water system. Open the system-level report by PWS ID:

View PWS ID OK1021640 on SDWIS

Source: EPA SDWIS Federal Reports Search

State Regulator

Oklahoma Drinking Water Authority

Oklahoma's primacy agency administers the Safe Drinking Water Act locally. Search EPA SDWIS for the current state contact, or use the state's public health or environment department portal.

Find OK regulator via EPA SDWIS

Violation Timeline

Each row links to the EPA SDWIS public record for verification. Cross-reference the contaminant code on EPA's federal report to see violation dates, return-to-compliance status, and enforcement actions.

Year (latest) Contaminant Category Count EPA Record
2024 Atrazine MR 4 SDWIS / OK1021640 / 2050
2024 Lead and Copper Rule MR 4 SDWIS / OK1021640 / 5000
2024 LEAD AND COPPER RULE REVISIONS TT 2 SDWIS / OK1021640 / 5200
2024 LEAD AND COPPER RULE REVISIONS RPT 2 SDWIS / OK1021640 / 5200
2021 Interim Enhanced Surface Water Treatment Rule MR 4 SDWIS / OK1021640 / 0300
2019 TTHM MR 2 SDWIS / OK1021640 / 2950
2019 Total Haloacetic Acids (HAA5) MR 2 SDWIS / OK1021640 / 2456
2016 CARBON, TOTAL TT 16 SDWIS / OK1021640 / 2920
2015 Total Haloacetic Acids (HAA5) MCL 32 SDWIS / OK1021640 / 2456
2015 TTHM MCL 24 SDWIS / OK1021640 / 2950
2014 cis-1,2-Dichloroethylene MR 4 SDWIS / OK1021640 / 2380
2014 Xylenes, Total MR 4 SDWIS / OK1021640 / 2955
2014 DICHLOROMETHANE MR 4 SDWIS / OK1021640 / 2964
2014 o-Dichlorobenzene MR 4 SDWIS / OK1021640 / 2968
2014 p-Dichlorobenzene MR 4 SDWIS / OK1021640 / 2969

How Mayes Co RWD # 3 Compares

Cross-reference this system's record against state averages and the federal MCL framework for context.

Metric Mayes Co RWD # 3 Oklahoma avg Federal benchmark
Total violations 228 266.8 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 82 90.2 Indicates a contaminant exceeded a federal MCL
PFAS detection None 60.8% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 2,400 2,931 Sizing context for compliance burden

Sources: EPA SDWIS and EPA National Primary Drinking Water Regulations (40 CFR Part 141). State averages computed across 1,262 regulated public water systems in Oklahoma.

Federal MCL reference, Safe Drinking Water Act thresholds ▼
Contaminant Federal MCL / Action Level Note
Lead 0 mg/L (Action Level: 0.015 mg/L) Lead and Copper Rule treatment technique
Arsenic 0.010 mg/L (10 ppb) Health-based MCL since 2006
Total Coliform Treatment technique (RTCR) Indicator organism, monitoring trigger
PFOA / PFOS (PFAS) 4.0 ppt each (final 2024 rule) Compliance deadline 2029 (EPA proposed extending to 2031, not yet final as of May 2026)
Nitrate (as N) 10 mg/L Acute health risk for infants

Frequently Asked Questions

Is Mayes Co RWD # 3 water safe to drink? ▼
Mayes Co RWD # 3 (PWS ID: OK1021640) has 228 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 2,400 people using Surface Water sources.
How many people does Mayes Co RWD # 3 serve? ▼
Mayes Co RWD # 3 serves 2,400 people in Disney, Oklahoma. It is a Local-owned system using Surface Water water sources with 1,386 service connections.
What type of violations does Mayes Co RWD # 3 have? ▼
Mayes Co RWD # 3 has 228 total violations: 82 health-based violations (MCL exceedances or treatment failures), 112 monitoring/reporting violations, and 26 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Mayes Co RWD # 3 water? ▼
No PFAS testing data is available for Mayes Co RWD # 3 under the EPA's UCMR5 monitoring program.
What water source does Mayes Co RWD # 3 use? ▼
Mayes Co RWD # 3 uses Surface Water as its primary water source. It is classified as a Community Water System (CWS), serving residential populations year-round.
Where does this data come from? ▼
All data comes from the EPA Safe Drinking Water Information System (SDWIS) and the UCMR5 PFAS monitoring program. SDWIS tracks compliance for all public water systems regulated under the Safe Drinking Water Act.
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025. This data is provided for informational purposes only.

Read our methodology - how this data is sourced, computed, and verified.

Data sourced from EPA SDWIS and UCMR5 PFAS monitoring data. See our methodology for details. Retrieved and formatted by PlainWater Editorial

Every figure on PlainWater is rendered directly from EPA SDWIS drinking-water data, no number is typed in by an editor. This system's figures are rendered directly from EPA SDWIS data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.