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Community Water System · PWS OK1021713

East Central Oklahoma Water Authority

Webbers Falls, Oklahoma 74470 - drinking water served from surface water sources to 1,200 people, tracked in EPA SDWIS and UCMR5.

1,200
People served
299
EPA violations
101
Health-based
Untested
UCMR5 result

The verdict

EPA records 299 drinking-water violations at East Central Oklahoma Water Authority, 34% of them health-based - above the Oklahoma per-system average.

299
Total EPA violations on record
34%
Health-based (MCL / treatment failure)
1,200
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: East Central Oklahoma Water Authority

East Central Oklahoma Water Authority is a local-owned community water system that delivers drinking water to 1,200 residents in Webbers Falls, Oklahoma (Sequoyah County) through 703 service connections. Its water is drawn from surface water sources. EPA's Safe Drinking Water Information System records 299 total violations for this system , of which 101 (34%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 178 monitoring and reporting violations are on file. The most recent violation on record dates to 2021.

The most frequently cited contaminant at this system is Total Haloacetic Acids (HAA5), recorded in 44 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%).

East Central Oklahoma Water Authority's 299 violations sit above 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
1,200
Total Violations
299
Health-Based Violations
101
Water Source
Surface Water

System Details

System Type
Community
Owner Type
Local
Connections
703
County
Sequoyah
School/Daycare
No
MCL Violations
60
Monitoring Violations
178
Treatment Tech Violations
41

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Total Haloacetic Acids (HAA5) MCL 44 2009
CARBON, TOTAL TT 29 2017
TTHM MCL 16 2009
Coliform (TCR) MR 16 2010
Interim Enhanced Surface Water Treatment Rule MR 15 2018
CARBON, TOTAL MR 13 2017
Interim Enhanced Surface Water Treatment Rule TT 8 2016
cis-1,2-Dichloroethylene MR 6 2020
Xylenes, Total MR 6 2020
DICHLOROMETHANE MR 6 2020
o-Dichlorobenzene MR 6 2020
Vinyl chloride MR 6 2020
trans-1,2-Dichloroethylene MR 6 2020
Carbon tetrachloride MR 6 2020
1,2-Dichloropropane MR 6 2020
Tetrachloroethylene MR 6 2020
Benzene MR 6 2020
Toluene MR 6 2020
Styrene MR 6 2020
Total Haloacetic Acids (HAA5) MR 6 2015
p-Dichlorobenzene MR 6 2020
1,1,1-Trichloroethane MR 6 2020
CHLOROBENZENE MR 6 2020
Ethylbenzene MR 6 2020
1,1-Dichloroethylene MR 6 2020
1,2,4-Trichlorobenzene MR 6 2020
Trichloroethylene MR 6 2020
1,1,2-Trichloroethane MR 6 2020
TTHM MR 4 2015
Surface Water Treatment Rule TT 4 2021

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 East Central Oklahoma Water Authority.

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 OK1021713 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
2021 Surface Water Treatment Rule TT 4 SDWIS / OK1021713 / 0200
2020 cis-1,2-Dichloroethylene MR 6 SDWIS / OK1021713 / 2380
2020 Xylenes, Total MR 6 SDWIS / OK1021713 / 2955
2020 DICHLOROMETHANE MR 6 SDWIS / OK1021713 / 2964
2020 o-Dichlorobenzene MR 6 SDWIS / OK1021713 / 2968
2020 Vinyl chloride MR 6 SDWIS / OK1021713 / 2976
2020 trans-1,2-Dichloroethylene MR 6 SDWIS / OK1021713 / 2979
2020 Carbon tetrachloride MR 6 SDWIS / OK1021713 / 2982
2020 1,2-Dichloropropane MR 6 SDWIS / OK1021713 / 2983
2020 Tetrachloroethylene MR 6 SDWIS / OK1021713 / 2987
2020 Benzene MR 6 SDWIS / OK1021713 / 2990
2020 Toluene MR 6 SDWIS / OK1021713 / 2991
2020 Styrene MR 6 SDWIS / OK1021713 / 2996
2020 p-Dichlorobenzene MR 6 SDWIS / OK1021713 / 2969
2020 1,1,1-Trichloroethane MR 6 SDWIS / OK1021713 / 2981

How East Central Oklahoma Water Authority Compares

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

Metric East Central Oklahoma Water Authority Oklahoma avg Federal benchmark
Total violations 299 266.8 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 101 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 1,200 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 East Central Oklahoma Water Authority water safe to drink? ▼
East Central Oklahoma Water Authority (PWS ID: OK1021713) has 299 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 1,200 people using Surface Water sources.
How many people does East Central Oklahoma Water Authority serve? ▼
East Central Oklahoma Water Authority serves 1,200 people in Webbers Falls, Oklahoma. It is a Local-owned system using Surface Water water sources with 703 service connections.
What type of violations does East Central Oklahoma Water Authority have? ▼
East Central Oklahoma Water Authority has 299 total violations: 101 health-based violations (MCL exceedances or treatment failures), 178 monitoring/reporting violations, and 41 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in East Central Oklahoma Water Authority water? ▼
No PFAS testing data is available for East Central Oklahoma Water Authority under the EPA's UCMR5 monitoring program.
What water source does East Central Oklahoma Water Authority use? ▼
East Central Oklahoma Water Authority 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.