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EUFAULA PWA

PWS ID: OK1020514 · EUFAULA, Oklahoma 74432

EUFAULA PWA serves 2,766 people in EUFAULA, Oklahoma using Surface Water water sources. It has 1,620 recorded EPA violations, including 1,238 health-based violations. PFAS "forever chemicals" were detected in UCMR5 testing (1 compound found).

Water Quality Snapshot: EUFAULA PWA

EUFAULA PWA is a local-owned community water system that delivers drinking water to 2,766 residents in EUFAULA, Oklahoma (McIntosh County) through 1,009 service connections. Its water is drawn from surface water sources. EPA's Safe Drinking Water Information System records 1,620 total violations for this system , of which 1,238 (76%) are health-based — meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 350 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 TTHM, recorded in 456 violations (MCL, health-based). Under EPA's UCMR5 PFAS monitoring program, 1 PFAS compound was detected in samples collected from this system, with a maximum reported concentration of 0.0085 ppt. PFAS are persistent synthetic chemicals linked to health effects at very low exposure levels.

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. EUFAULA PWA's 1,620 violations sit above the Oklahoma average. Statewide, 101 of 166 UCMR5-tested systems have reported PFAS detections (60.8%). All figures above are sourced directly from EPA SDWIS and UCMR5 public data releases and are updated as EPA publishes new reporting cycles.

PFAS Detected

1 PFAS "forever chemicals" detected in testing under EPA's UCMR5 monitoring program.

Population Served
2,766
Total Violations
1,620
Health-Based Violations
1,238
Water Source
Surface Water

System Details

System Type
Community
Owner Type
Local
Connections
1,009
County
McIntosh
School/Daycare
No
MCL Violations
710
Monitoring Violations
350
Treatment Tech Violations
528

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
TTHM MCL 456 2025
CARBON, TOTAL TT 365 2018
Total Haloacetic Acids (HAA5) MCL 254 2016
Interim Enhanced Surface Water Treatment Rule TT 87 2019
Interim Enhanced Surface Water Treatment Rule MR 83 2017
Surface Water Treatment Rule MR 83 2017
Surface Water Treatment Rule TT 74 2019
TTHM MR 26 2025
Total Haloacetic Acids (HAA5) MR 21 2024
Coliform (TCR) MR 16 1996
CARBON, TOTAL MR 14 2013
Consumer Confidence Rule Other 12 2025
Lead and Copper Rule MR 11 2024
Revised Total Coliform Rule MON 4 2018
Nitrate-Nitrite MR 4 2022
1,2,4-Trichlorobenzene MR 4 2020
Xylenes, Total MR 4 2020
DICHLOROMETHANE MR 4 2020
p-Dichlorobenzene MR 4 2020
Vinyl chloride MR 4 2020
trans-1,2-Dichloroethylene MR 4 2020
1,1,1-Trichloroethane MR 4 2020
1,2-Dichloropropane MR 4 2020
Trichloroethylene MR 4 2020
Toluene MR 4 2020
Ethylbenzene MR 4 2020
Styrene MR 4 2020
1,1-Dichloroethylene MR 4 2020
Chlorine MR 4 2018
cis-1,2-Dichloroethylene MR 4 2020

PFAS Testing Results (UCMR5)

Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 2 of 120 samples detected PFAS.

Contaminant Date Result MRL Status
PFPeA 8/15/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFMPA 8/15/2023 <0.004 µg/L 0.004 µg/L Not Detected
8:2 FTS 8/15/2023 <0.005 µg/L 0.005 µg/L Not Detected
4:2 FTS 8/15/2023 <0.003 µg/L 0.003 µg/L Not Detected
6:2 FTS 8/15/2023 <0.005 µg/L 0.005 µg/L Not Detected
PFBA 8/15/2023 0.0061 µg/L 0.005 µg/L Detected
HFPO-DA 8/15/2023 <0.005 µg/L 0.005 µg/L Not Detected
PFHxA 8/15/2023 <0.003 µg/L 0.003 µg/L Not Detected
9Cl-PF3ONS 8/15/2023 <0.002 µg/L 0.002 µg/L Not Detected
11Cl-PF3OUdS 8/15/2023 <0.005 µg/L 0.005 µg/L Not Detected
PFUnA 8/15/2023 <0.002 µg/L 0.002 µg/L Not Detected
PFMBA 8/15/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFDoA 8/15/2023 <0.003 µg/L 0.003 µg/L Not Detected
NMeFOSAA 8/15/2023 <0.006 µg/L 0.006 µg/L Not Detected
ADONA 8/15/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFEESA 8/15/2023 <0.003 µg/L 0.003 µg/L Not Detected
NFDHA 8/15/2023 <0.02 µg/L 0.02 µg/L Not Detected
PFPeS 8/15/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFHpS 8/15/2023 <0.003 µg/L 0.003 µg/L Not Detected
lithium 8/15/2023 <9 µg/L 9 µg/L Not Detected
PFDA 8/15/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFBS 8/15/2023 <0.003 µg/L 0.003 µg/L Not Detected
NEtFOSAA 8/15/2023 <0.005 µg/L 0.005 µg/L Not Detected
PFOA 8/15/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFOS 8/15/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFNA 8/15/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFHxS 8/15/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFHpA 8/15/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFTA 8/15/2023 <0.008 µg/L 0.008 µg/L Not Detected
PFTrDA 8/15/2023 <0.007 µg/L 0.007 µg/L Not Detected
PFTrDA 5/31/2023 <0.007 µg/L 0.007 µg/L Not Detected
6:2 FTS 5/31/2023 <0.005 µg/L 0.005 µg/L Not Detected
NMeFOSAA 5/31/2023 <0.006 µg/L 0.006 µg/L Not Detected
NEtFOSAA 5/31/2023 <0.005 µg/L 0.005 µg/L Not Detected
PFTA 5/31/2023 <0.008 µg/L 0.008 µg/L Not Detected
PFDA 5/31/2023 <0.003 µg/L 0.003 µg/L Not Detected
lithium 5/31/2023 <9 µg/L 9 µg/L Not Detected
PFHpA 5/31/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFHxS 5/31/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFNA 5/31/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFOS 5/31/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFOA 5/31/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFPeA 5/31/2023 <0.003 µg/L 0.003 µg/L Not Detected
4:2 FTS 5/31/2023 <0.003 µg/L 0.003 µg/L Not Detected
9Cl-PF3ONS 5/31/2023 <0.002 µg/L 0.002 µg/L Not Detected
8:2 FTS 5/31/2023 <0.005 µg/L 0.005 µg/L Not Detected
PFMPA 5/31/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFMBA 5/31/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFEESA 5/31/2023 <0.003 µg/L 0.003 µg/L Not Detected
NFDHA 5/31/2023 <0.02 µg/L 0.02 µg/L Not Detected

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 EUFAULA PWA.

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 OK1020514 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 TTHM MCL 456 SDWIS / OK1020514 / 2950
2025 TTHM MR 26 SDWIS / OK1020514 / 2950
2025 Consumer Confidence Rule Other 12 SDWIS / OK1020514 / 7000
2024 Total Haloacetic Acids (HAA5) MR 21 SDWIS / OK1020514 / 2456
2024 Lead and Copper Rule MR 11 SDWIS / OK1020514 / 5000
2024 LEAD AND COPPER RULE REVISIONS TT 2 SDWIS / OK1020514 / 5200
2024 LEAD AND COPPER RULE REVISIONS RPT 2 SDWIS / OK1020514 / 5200
2022 Nitrate-Nitrite MR 4 SDWIS / OK1020514 / 1038
2020 1,2,4-Trichlorobenzene MR 4 SDWIS / OK1020514 / 2378
2020 Xylenes, Total MR 4 SDWIS / OK1020514 / 2955
2020 DICHLOROMETHANE MR 4 SDWIS / OK1020514 / 2964
2020 p-Dichlorobenzene MR 4 SDWIS / OK1020514 / 2969
2020 Vinyl chloride MR 4 SDWIS / OK1020514 / 2976
2020 trans-1,2-Dichloroethylene MR 4 SDWIS / OK1020514 / 2979
2020 1,1,1-Trichloroethane MR 4 SDWIS / OK1020514 / 2981

How EUFAULA PWA Compares

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

Metric EUFAULA PWA Oklahoma avg Federal benchmark
Total violations 1,620 266.8 SDWA compliance — any non-zero count is a recorded breach
Health-based violations 1,238 90.2 Indicates a contaminant exceeded a federal MCL
PFAS detection 1 compound 60.8% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 2,766 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
Nitrate (as N) 10 mg/L Acute health risk for infants

Frequently Asked Questions

Is EUFAULA PWA water safe to drink? ▼
EUFAULA PWA (PWS ID: OK1020514) has 1620 recorded violations in the EPA SDWIS database. PFAS contamination has been detected in UCMR5 testing, with 1 PFAS compound found. This system serves 2,766 people using Surface Water sources.
How many people does EUFAULA PWA serve? ▼
EUFAULA PWA serves 2,766 people in EUFAULA, Oklahoma. It is a Local-owned system using Surface Water water sources with 1,009 service connections.
What type of violations does EUFAULA PWA have? ▼
EUFAULA PWA has 1,620 total violations: 1,238 health-based violations (MCL exceedances or treatment failures), 350 monitoring/reporting violations, and 528 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in EUFAULA PWA water? ▼
Yes. UCMR5 testing detected 1 PFAS compound in EUFAULA PWA's water supply: PFBA. PFAS are persistent "forever chemicals" that do not break down in the environment.
What water source does EUFAULA PWA use? ▼
EUFAULA PWA 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.

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Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025. PFAS data from EPA UCMR5 monitoring program (2023-2025). This data is provided for informational purposes only.

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

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Data sourced from $official public datasets. See our methodology for details. Retrieved and formatted by Kiznis Studio Editorial