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Community Water System · PWS OK1020529

McIntosh Co. RWD #8 (Texanna)

Eufaula, Oklahoma 74432-7802 - drinking water served from surface water sources to 3,574 people, tracked in EPA SDWIS and UCMR5.

3,574
People served
767
EPA violations
701
Health-based
2 PFAS
UCMR5 result

The verdict

EPA records 767 drinking-water violations at McIntosh Co. RWD #8 (Texanna), 91% of them health-based - above the Oklahoma per-system average, and UCMR5 testing detected 2 PFAS compounds.

767
Total EPA violations on record
91%
Health-based (MCL / treatment failure)
3,574
People served by this system
2
PFAS compounds detected (UCMR5)

Water Quality Snapshot: McIntosh Co. RWD #8 (Texanna)

McIntosh Co. RWD #8 (Texanna) is a local-owned community water system that delivers drinking water to 3,574 residents in Eufaula, Oklahoma (McIntosh County) through 2,586 service connections. Its water is drawn from surface water sources. EPA's Safe Drinking Water Information System records 767 total violations for this system , of which 701 (91%) 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 2025.

The most frequently cited contaminant at this system is TTHM, recorded in 477 violations (MCL, health-based). Under EPA's UCMR5 PFAS monitoring program, 2 PFAS compounds were detected in samples collected from this system, with a maximum reported concentration of 6.4 ppt (parts per trillion). 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. Statewide, 101 of 166 UCMR5-tested systems have reported PFAS detections (60.8%).

McIntosh Co. RWD #8 (Texanna)'s 767 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.

PFAS Detected

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

Population Served
3,574
Total Violations
767
Health-Based Violations
701
Water Source
Surface Water

System Details

System Type
Community
Owner Type
Local
Connections
2,586
County
McIntosh
School/Daycare
No
MCL Violations
568
Monitoring Violations
61
Treatment Tech Violations
133

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
TTHM MCL 477 2025
CARBON, TOTAL TT 100 2013
Total Haloacetic Acids (HAA5) MCL 86 2009
Surface Water Treatment Rule TT 21 2020
Coliform (TCR) MR 20 2010
TTHM MR 18 2020
Interim Enhanced Surface Water Treatment Rule TT 12 2007
Total Haloacetic Acids (HAA5) MR 8 2016
Coliform (TCR) MCL 5 1997
Interim Enhanced Surface Water Treatment Rule MR 4 2020
Chlorine MR 4 2018
Lead and Copper Rule MR 4 1993
Revised Total Coliform Rule MON 3 2017

PFAS Testing Results (UCMR5)

Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 4 of 116 samples detected PFAS.

Contaminant Date Result MRL Status
NEtFOSAA 8/15/2023 <5.00 ppt 5.00 ppt Not Detected
PFHpS 8/15/2023 <3.00 ppt 3.00 ppt Not Detected
PFTA 8/15/2023 <8.00 ppt 8.00 ppt Not Detected
PFTrDA 8/15/2023 <7.00 ppt 7.00 ppt Not Detected
4:2 FTS 8/15/2023 <3.00 ppt 3.00 ppt Not Detected
PFPeS 8/15/2023 <4.00 ppt 4.00 ppt Not Detected
PFEESA 8/15/2023 <3.00 ppt 3.00 ppt Not Detected
PFMBA 8/15/2023 <3.00 ppt 3.00 ppt Not Detected
PFPeA 8/15/2023 3.00 ppt 3.00 ppt Detected
NFDHA 8/15/2023 <20.00 ppt 20.00 ppt Not Detected
8:2 FTS 8/15/2023 <5.00 ppt 5.00 ppt Not Detected
NMeFOSAA 8/15/2023 <6.00 ppt 6.00 ppt Not Detected
6:2 FTS 8/15/2023 <5.00 ppt 5.00 ppt Not Detected
PFBA 8/15/2023 <5.00 ppt 5.00 ppt Not Detected
HFPO-DA 8/15/2023 <5.00 ppt 5.00 ppt Not Detected
ADONA 8/15/2023 <3.00 ppt 3.00 ppt Not Detected
PFNA 8/15/2023 <4.00 ppt 4.00 ppt Not Detected
PFMPA 8/15/2023 <4.00 ppt 4.00 ppt Not Detected
9Cl-PF3ONS 8/15/2023 <2.00 ppt 2.00 ppt Not Detected
PFHxS 8/15/2023 <3.00 ppt 3.00 ppt Not Detected
PFBS 8/15/2023 <3.00 ppt 3.00 ppt Not Detected
PFOS 8/15/2023 <4.00 ppt 4.00 ppt Not Detected
PFOA 8/15/2023 <4.00 ppt 4.00 ppt Not Detected
PFDA 8/15/2023 <3.00 ppt 3.00 ppt Not Detected
PFDoA 8/15/2023 <3.00 ppt 3.00 ppt Not Detected
PFHxA 8/15/2023 <3.00 ppt 3.00 ppt Not Detected
PFUnA 8/15/2023 <2.00 ppt 2.00 ppt Not Detected
11Cl-PF3OUdS 8/15/2023 <5.00 ppt 5.00 ppt Not Detected
PFHpA 8/15/2023 <3.00 ppt 3.00 ppt Not Detected
PFMPA 5/10/2023 <4.00 ppt 4.00 ppt Not Detected
PFEESA 5/10/2023 <3.00 ppt 3.00 ppt Not Detected
8:2 FTS 5/10/2023 <5.00 ppt 5.00 ppt Not Detected
PFPeA 5/10/2023 <3.00 ppt 3.00 ppt Not Detected
PFMBA 5/10/2023 <3.00 ppt 3.00 ppt Not Detected
NFDHA 5/10/2023 <20.00 ppt 20.00 ppt Not Detected
PFPeS 5/10/2023 <4.00 ppt 4.00 ppt Not Detected
PFHpS 5/10/2023 <3.00 ppt 3.00 ppt Not Detected
PFBS 5/10/2023 <3.00 ppt 3.00 ppt Not Detected
PFDoA 5/10/2023 <3.00 ppt 3.00 ppt Not Detected
4:2 FTS 5/10/2023 <3.00 ppt 3.00 ppt Not Detected
PFUnA 5/10/2023 <2.00 ppt 2.00 ppt Not Detected
11Cl-PF3OUdS 5/10/2023 <5.00 ppt 5.00 ppt Not Detected
PFHxA 5/10/2023 <3.00 ppt 3.00 ppt Not Detected
PFOA 5/10/2023 <4.00 ppt 4.00 ppt Not Detected
PFHpA 5/10/2023 <3.00 ppt 3.00 ppt Not Detected
PFHxS 5/10/2023 <3.00 ppt 3.00 ppt Not Detected
9Cl-PF3ONS 5/10/2023 <2.00 ppt 2.00 ppt Not Detected
PFOS 5/10/2023 <4.00 ppt 4.00 ppt Not Detected
6:2 FTS 5/10/2023 <5.00 ppt 5.00 ppt Not Detected
NMeFOSAA 5/10/2023 <6.00 ppt 6.00 ppt 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 McIntosh Co. RWD #8 (Texanna).

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 OK1020529 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 477 SDWIS / OK1020529 / 2950
2020 Surface Water Treatment Rule TT 21 SDWIS / OK1020529 / 0200
2020 TTHM MR 18 SDWIS / OK1020529 / 2950
2020 Interim Enhanced Surface Water Treatment Rule MR 4 SDWIS / OK1020529 / 0300
2018 Chlorine MR 4 SDWIS / OK1020529 / 0999
2017 Revised Total Coliform Rule MON 3 SDWIS / OK1020529 / 8000
2016 Total Haloacetic Acids (HAA5) MR 8 SDWIS / OK1020529 / 2456
2013 CARBON, TOTAL TT 100 SDWIS / OK1020529 / 2920
2010 Coliform (TCR) MR 20 SDWIS / OK1020529 / 3100
2009 Total Haloacetic Acids (HAA5) MCL 86 SDWIS / OK1020529 / 2456
2007 Interim Enhanced Surface Water Treatment Rule TT 12 SDWIS / OK1020529 / 0300
1997 Coliform (TCR) MCL 5 SDWIS / OK1020529 / 3100
1993 Lead and Copper Rule MR 4 SDWIS / OK1020529 / 5000

How McIntosh Co. RWD #8 (Texanna) Compares

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

Metric McIntosh Co. RWD #8 (Texanna) Oklahoma avg Federal benchmark
Total violations 767 266.8 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 701 90.2 Indicates a contaminant exceeded a federal MCL
PFAS detection 2 compounds 60.8% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 3,574 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 McIntosh Co. RWD #8 (Texanna) water safe to drink? ▼
McIntosh Co. RWD #8 (Texanna) (PWS ID: OK1020529) has 767 recorded violations in the EPA SDWIS database. PFAS contamination has been detected in UCMR5 testing, with 2 PFAS compounds found. This system serves 3,574 people using Surface Water sources.
How many people does McIntosh Co. RWD #8 (Texanna) serve? ▼
McIntosh Co. RWD #8 (Texanna) serves 3,574 people in Eufaula, Oklahoma. It is a Local-owned system using Surface Water water sources with 2,586 service connections.
What type of violations does McIntosh Co. RWD #8 (Texanna) have? ▼
McIntosh Co. RWD #8 (Texanna) has 767 total violations: 701 health-based violations (MCL exceedances or treatment failures), 61 monitoring/reporting violations, and 133 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in McIntosh Co. RWD #8 (Texanna) water? ▼
Yes. UCMR5 testing detected 2 PFAS compounds in McIntosh Co. RWD #8 (Texanna)'s water supply: PFPeA, PFBA. PFAS are persistent "forever chemicals" that do not break down in the environment.
What water source does McIntosh Co. RWD #8 (Texanna) use? ▼
McIntosh Co. RWD #8 (Texanna) 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. 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.

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.