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Community Water System · PWS OK2001302

Keyes Utility Auth.

Keyes, Oklahoma 73947 - drinking water served from groundwater sources to 315 people, tracked in EPA SDWIS and UCMR5.

315
People served
124
EPA violations
17
Health-based
Untested
UCMR5 result

The verdict

EPA records 124 drinking-water violations at Keyes Utility Auth., 14% of them health-based - below the Oklahoma per-system average.

124
Total EPA violations on record
14%
Health-based (MCL / treatment failure)
315
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Keyes Utility Auth.

Keyes Utility Auth. is a local-owned community water system that delivers drinking water to 315 residents in Keyes, Oklahoma (Cimarron County) through 193 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 124 total violations for this system , of which 17 (14%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 61 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 Chlorine, recorded in 17 violations (MR). 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%).

Keyes Utility Auth.'s 124 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
315
Total Violations
124
Health-Based Violations
17
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Local
Connections
193
County
Cimarron
School/Daycare
No
MCL Violations
17
Monitoring Violations
61
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Chlorine MR 17 2024
Coliform (TCR) MR 16 2015
Consumer Confidence Rule Other 12 2022
Fluoride MCL 12 1984
Lead and Copper Rule MR 10 2022
Revised Total Coliform Rule MON 9 2024
Coliform (TCR) MCL 5 1995
TTHM MR 4 2014
Total Haloacetic Acids (HAA5) MR 4 2014
Glyphosate MR 1 2011

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 Keyes Utility Auth..

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 OK2001302 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 Chlorine MR 17 SDWIS / OK2001302 / 0999
2024 Revised Total Coliform Rule MON 9 SDWIS / OK2001302 / 8000
2022 Consumer Confidence Rule Other 12 SDWIS / OK2001302 / 7000
2022 Lead and Copper Rule MR 10 SDWIS / OK2001302 / 5000
2015 Coliform (TCR) MR 16 SDWIS / OK2001302 / 3100
2014 TTHM MR 4 SDWIS / OK2001302 / 2950
2014 Total Haloacetic Acids (HAA5) MR 4 SDWIS / OK2001302 / 2456
2011 Glyphosate MR 1 SDWIS / OK2001302 / 2034
1995 Coliform (TCR) MCL 5 SDWIS / OK2001302 / 3100
1984 Fluoride MCL 12 SDWIS / OK2001302 / 1025

How Keyes Utility Auth. Compares

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

Metric Keyes Utility Auth. Oklahoma avg Federal benchmark
Total violations 124 266.8 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 17 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 315 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 Keyes Utility Auth. water safe to drink? ▼
Keyes Utility Auth. (PWS ID: OK2001302) has 124 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 315 people using Groundwater sources.
How many people does Keyes Utility Auth. serve? ▼
Keyes Utility Auth. serves 315 people in Keyes, Oklahoma. It is a Local-owned system using Groundwater water sources with 193 service connections.
What type of violations does Keyes Utility Auth. have? ▼
Keyes Utility Auth. has 124 total violations: 17 health-based violations (MCL exceedances or treatment failures), 61 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Keyes Utility Auth. water? ▼
No PFAS testing data is available for Keyes Utility Auth. under the EPA's UCMR5 monitoring program.
What water source does Keyes Utility Auth. use? ▼
Keyes Utility Auth. uses Groundwater 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.