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Community Water System · PWS OK1021674

Jay

Jay, Oklahoma 74346 - drinking water served from surface water sources to 2,482 people, tracked in EPA SDWIS and UCMR5.

2,482
People served
154
EPA violations
20
Health-based
Untested
UCMR5 result

The verdict

EPA records 154 drinking-water violations at Jay, 13% of them health-based - below the Oklahoma per-system average.

154
Total EPA violations on record
13%
Health-based (MCL / treatment failure)
2,482
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Jay

Jay is a local-owned community water system that delivers drinking water to 2,482 residents in Jay, Oklahoma (Delaware County) through 1,629 service connections. Its water is drawn from surface water sources. EPA's Safe Drinking Water Information System records 154 total violations for this system , of which 20 (13%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 106 monitoring and reporting violations are on file. The most recent violation on record dates to 2025.

The most frequently cited contaminant at this system is Interim Enhanced Surface Water Treatment Rule, recorded in 27 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%).

Jay's 154 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
2,482
Total Violations
154
Health-Based Violations
20
Water Source
Surface Water

System Details

System Type
Community
Owner Type
Local
Connections
1,629
County
Delaware
School/Daycare
No
MCL Violations
8
Monitoring Violations
106
Treatment Tech Violations
12

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Interim Enhanced Surface Water Treatment Rule MR 27 2022
TTHM MR 21 2014
Coliform (TCR) MR 17 2009
Total Haloacetic Acids (HAA5) MR 17 2014
Consumer Confidence Rule Other 17 2025
Total Haloacetic Acids (HAA5) MCL 8 2007
CARBON, TOTAL MR 8 2009
Interim Enhanced Surface Water Treatment Rule TT 8 2011
Lead and Copper Rule MR 7 2022
Arsenic MR 6 2007
CARBON, TOTAL TT 4 2009
Nitrate-Nitrite MR 3 2016

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 Jay.

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 OK1021674 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
2025 Consumer Confidence Rule Other 17 SDWIS / OK1021674 / 7000
2022 Interim Enhanced Surface Water Treatment Rule MR 27 SDWIS / OK1021674 / 0300
2022 Lead and Copper Rule MR 7 SDWIS / OK1021674 / 5000
2016 Nitrate-Nitrite MR 3 SDWIS / OK1021674 / 1038
2014 TTHM MR 21 SDWIS / OK1021674 / 2950
2014 Total Haloacetic Acids (HAA5) MR 17 SDWIS / OK1021674 / 2456
2011 Interim Enhanced Surface Water Treatment Rule TT 8 SDWIS / OK1021674 / 0300
2009 Coliform (TCR) MR 17 SDWIS / OK1021674 / 3100
2009 CARBON, TOTAL MR 8 SDWIS / OK1021674 / 2920
2009 CARBON, TOTAL TT 4 SDWIS / OK1021674 / 2920
2007 Total Haloacetic Acids (HAA5) MCL 8 SDWIS / OK1021674 / 2456
2007 Arsenic MR 6 SDWIS / OK1021674 / 1005

How Jay Compares

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

Metric Jay Oklahoma avg Federal benchmark
Total violations 154 266.8 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 20 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 2,482 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 Jay water safe to drink? ▼
Jay (PWS ID: OK1021674) has 154 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 2,482 people using Surface Water sources.
How many people does Jay serve? ▼
Jay serves 2,482 people in Jay, Oklahoma. It is a Local-owned system using Surface Water water sources with 1,629 service connections.
What type of violations does Jay have? ▼
Jay has 154 total violations: 20 health-based violations (MCL exceedances or treatment failures), 106 monitoring/reporting violations, and 12 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Jay water? ▼
No PFAS testing data is available for Jay under the EPA's UCMR5 monitoring program.
What water source does Jay use? ▼
Jay 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.