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Community Water System · PWS OK1021528

Wagoner Co. RWD #5

Coweta, Oklahoma 74429 - drinking water served from surface water sources to 4,251 people, tracked in EPA SDWIS and UCMR5.

4,251
People served
193
EPA violations
164
Health-based
6 PFAS
UCMR5 result

The verdict

EPA records 193 drinking-water violations at Wagoner Co. RWD #5, 85% of them health-based - below the Oklahoma per-system average, and UCMR5 testing detected 6 PFAS compounds.

193
Total EPA violations on record
85%
Health-based (MCL / treatment failure)
4,251
People served by this system
6
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Wagoner Co. RWD #5

Wagoner Co. RWD #5 is a local-owned community water system that delivers drinking water to 4,251 residents in Coweta, Oklahoma (Wagoner County) through 4,930 service connections. Its water is drawn from surface water sources. EPA's Safe Drinking Water Information System records 193 total violations for this system , of which 164 (85%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 27 monitoring and reporting violations are on file. The most recent violation on record dates to 2018.

The most frequently cited contaminant at this system is Total Haloacetic Acids (HAA5), recorded in 54 violations (MCL, health-based). Under EPA's UCMR5 PFAS monitoring program, 6 PFAS compounds were detected in samples collected from this system, with a maximum reported concentration of 34 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%).

Wagoner Co. RWD #5's 193 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.

PFAS Detected

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

Population Served
4,251
Total Violations
193
Health-Based Violations
164
Water Source
Surface Water

System Details

System Type
Community
Owner Type
Local
Connections
4,930
County
Wagoner
School/Daycare
No
MCL Violations
109
Monitoring Violations
27
Treatment Tech Violations
51

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Total Haloacetic Acids (HAA5) MCL 54 2009
TTHM MCL 50 2007
CARBON, TOTAL TT 46 2007
CARBON, TOTAL MR 9 2004
Coliform (TCR) MCL 5 2004
Chlorine dioxide MR 4 2008
Chlorine MR 4 2018
Chlorine dioxide MRDL 4 2008
Interim Enhanced Surface Water Treatment Rule TT 4 2015
Revised Total Coliform Rule MON 4 2018
Surface Water Treatment Rule MR 3 1997
Coliform (TCR) MR 3 1997
Surface Water Treatment Rule TT 1 1998

PFAS Testing Results (UCMR5)

Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 14 of 116 samples detected PFAS.

Contaminant Date Result MRL Status
NEtFOSAA 9/13/2023 <5.00 ppt 5.00 ppt Not Detected
PFTrDA 9/13/2023 <7.00 ppt 7.00 ppt Not Detected
PFTA 9/13/2023 <8.00 ppt 8.00 ppt Not Detected
NMeFOSAA 9/13/2023 <6.00 ppt 6.00 ppt Not Detected
PFTrDA 6/20/2023 <7.00 ppt 7.00 ppt Not Detected
PFDA 6/20/2023 <3.00 ppt 3.00 ppt Not Detected
PFOA 6/20/2023 <4.00 ppt 4.00 ppt Not Detected
PFNA 6/20/2023 <4.00 ppt 4.00 ppt Not Detected
PFHpA 6/20/2023 <3.00 ppt 3.00 ppt Not Detected
PFBS 6/20/2023 3.20 ppt 3.00 ppt Detected
NEtFOSAA 6/20/2023 <5.00 ppt 5.00 ppt Not Detected
PFTA 6/20/2023 <8.00 ppt 8.00 ppt Not Detected
PFDoA 6/20/2023 <3.00 ppt 3.00 ppt Not Detected
PFPeA 6/20/2023 5.70 ppt 3.00 ppt Detected
NMeFOSAA 6/20/2023 <6.00 ppt 6.00 ppt Not Detected
NFDHA 6/20/2023 <20.00 ppt 20.00 ppt Not Detected
PFOS 6/20/2023 34.00 ppt 4.00 ppt Detected
4:2 FTS 6/20/2023 <3.00 ppt 3.00 ppt Not Detected
6:2 FTS 6/20/2023 <5.00 ppt 5.00 ppt Not Detected
PFBA 6/20/2023 <5.00 ppt 5.00 ppt Not Detected
HFPO-DA 6/20/2023 <5.00 ppt 5.00 ppt Not Detected
ADONA 6/20/2023 <3.00 ppt 3.00 ppt Not Detected
8:2 FTS 6/20/2023 <5.00 ppt 5.00 ppt Not Detected
PFPeS 6/20/2023 <4.00 ppt 4.00 ppt Not Detected
PFHxA 6/20/2023 8.30 ppt 3.00 ppt Detected
PFEESA 6/20/2023 <3.00 ppt 3.00 ppt Not Detected
PFMBA 6/20/2023 <3.00 ppt 3.00 ppt Not Detected
PFMPA 6/20/2023 <4.00 ppt 4.00 ppt Not Detected
9Cl-PF3ONS 6/20/2023 <2.00 ppt 2.00 ppt Not Detected
11Cl-PF3OUdS 6/20/2023 <5.00 ppt 5.00 ppt Not Detected
PFUnA 6/20/2023 <2.00 ppt 2.00 ppt Not Detected
PFHpS 6/20/2023 <3.00 ppt 3.00 ppt Not Detected
PFHxS 6/20/2023 15.00 ppt 3.00 ppt Detected
NFDHA 5/2/2023 <20.00 ppt 20.00 ppt Not Detected
ADONA 5/2/2023 <3.00 ppt 3.00 ppt Not Detected
HFPO-DA 5/2/2023 <5.00 ppt 5.00 ppt Not Detected
PFBA 5/2/2023 7.90 ppt 5.00 ppt Detected
6:2 FTS 5/2/2023 <5.00 ppt 5.00 ppt Not Detected
4:2 FTS 5/2/2023 <3.00 ppt 3.00 ppt Not Detected
8:2 FTS 5/2/2023 <5.00 ppt 5.00 ppt Not Detected
PFMPA 5/2/2023 <4.00 ppt 4.00 ppt Not Detected
PFPeA 5/2/2023 <3.00 ppt 3.00 ppt Not Detected
PFHpS 5/2/2023 <3.00 ppt 3.00 ppt Not Detected
PFEESA 5/2/2023 <3.00 ppt 3.00 ppt Not Detected
PFPeS 5/2/2023 <4.00 ppt 4.00 ppt Not Detected
PFUnA 5/2/2023 <2.00 ppt 2.00 ppt Not Detected
PFMBA 5/2/2023 <3.00 ppt 3.00 ppt Not Detected
9Cl-PF3ONS 5/2/2023 <2.00 ppt 2.00 ppt Not Detected
11Cl-PF3OUdS 5/2/2023 <5.00 ppt 5.00 ppt Not Detected
PFBS 5/2/2023 <3.00 ppt 3.00 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 Wagoner Co. RWD #5.

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 OK1021528 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
2018 Chlorine MR 4 SDWIS / OK1021528 / 0999
2018 Revised Total Coliform Rule MON 4 SDWIS / OK1021528 / 8000
2015 Interim Enhanced Surface Water Treatment Rule TT 4 SDWIS / OK1021528 / 0300
2009 Total Haloacetic Acids (HAA5) MCL 54 SDWIS / OK1021528 / 2456
2008 Chlorine dioxide MR 4 SDWIS / OK1021528 / 1008
2008 Chlorine dioxide MRDL 4 SDWIS / OK1021528 / 1008
2007 TTHM MCL 50 SDWIS / OK1021528 / 2950
2007 CARBON, TOTAL TT 46 SDWIS / OK1021528 / 2920
2004 CARBON, TOTAL MR 9 SDWIS / OK1021528 / 2920
2004 Coliform (TCR) MCL 5 SDWIS / OK1021528 / 3100
1998 Surface Water Treatment Rule TT 1 SDWIS / OK1021528 / 0200
1997 Surface Water Treatment Rule MR 3 SDWIS / OK1021528 / 0200
1997 Coliform (TCR) MR 3 SDWIS / OK1021528 / 3100

How Wagoner Co. RWD #5 Compares

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

Metric Wagoner Co. RWD #5 Oklahoma avg Federal benchmark
Total violations 193 266.8 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 164 90.2 Indicates a contaminant exceeded a federal MCL
PFAS detection 6 compounds 60.8% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 4,251 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 Wagoner Co. RWD #5 water safe to drink? ▼
Wagoner Co. RWD #5 (PWS ID: OK1021528) has 193 recorded violations in the EPA SDWIS database. PFAS contamination has been detected in UCMR5 testing, with 6 PFAS compounds found. This system serves 4,251 people using Surface Water sources.
How many people does Wagoner Co. RWD #5 serve? ▼
Wagoner Co. RWD #5 serves 4,251 people in Coweta, Oklahoma. It is a Local-owned system using Surface Water water sources with 4,930 service connections.
What type of violations does Wagoner Co. RWD #5 have? ▼
Wagoner Co. RWD #5 has 193 total violations: 164 health-based violations (MCL exceedances or treatment failures), 27 monitoring/reporting violations, and 51 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Wagoner Co. RWD #5 water? ▼
Yes. UCMR5 testing detected 6 PFAS compounds in Wagoner Co. RWD #5's water supply: PFBS, PFPeA, PFOS, PFHxA, PFHxS, and others. PFAS are persistent "forever chemicals" that do not break down in the environment.
What water source does Wagoner Co. RWD #5 use? ▼
Wagoner Co. RWD #5 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.