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Tap water quality report

Coweta Pwa

EPA monitoring tested this supplier for 86 contaminants and detected 25. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

86
contaminants tested
25
detected
9,450
people served
850
health-based violations
Oklahoma rankingsLead in OklahomaPFAS in Oklahoma
Water source
Surface water
Ownership
Local government
Counties served
Wagoner

Compliance record

Formal violations the EPA has on file for this supplier. A health-based violation means a contaminant limit or a required treatment was breached; the rest are monitoring or reporting failures — still violations, but not a measured health risk.

850
health-based violations
1,116
violations on file
2
still open
ViolationTypeStatusPeriod
MCL Health-based Archived 2025-07-01 → 2025-09-30
MCL Health-based Archived 2025-07-01 → 2025-09-30
MCL Health-based Archived 2025-07-01 → 2025-09-30
MCL Health-based Archived 2025-07-01 → 2025-09-30
MCL Health-based Archived 2025-07-01 → 2025-09-30
MCL Health-based Archived 2025-07-01 → 2025-09-30
MCL Health-based Archived 2025-07-01 → 2025-09-30
MCL Health-based Archived 2025-07-01 → 2025-09-30
MCL Health-based Archived 2025-07-01 → 2025-09-30
MCL Health-based Archived 2025-07-01 → 2025-09-30

PFAS detected

PFAS are industrial “forever chemicals”. These are the EPA's latest nationwide test results (2023–2025).
ContaminantMaxDetection ratePeriod
Pfhxa 0.0042 µg/L 3/4 2024
PFHXS 0.0055 µg/L 2/4 2024
Pfpea 0.0033 µg/L 2/4 2024
Pfba 0.0069 µg/L 1/4 2024

Other contaminants detected

Each bar shows the measured level as a share of the EPA limit: green is well under, amber is close to it, red is over. For lead and copper the limit applies to exactly the 90th-percentile figure shown, so red there means a real exceedance. For everything else the limit applies to a running annual average while the figure is the single worst sample on record — over 100% is worth reading, but is not by itself a violation. Formal violations are listed separately.
ContaminantLevel vs EPA limitDetection rateSourcePeriod
Bromodichloromethane
28.9 µg/L
No EPA limit set
 65/68 SYR4 2012–2019
Chloroform
125 µg/L
No EPA limit set
 65/68 SYR4 2012–2019
Copper
880 µg/L 68%
of the EPA limit 1300 µg/L
 60/60 SYR4 2013–2019
Dibromochloromethane
12.1 µg/L
No EPA limit set
 58/68 SYR4 2012–2019
Dichloroacetic Acid
72.37 µg/L
No EPA limit set
 58/60 SYR4 2012–2019
TTHM
150 µg/L 188%
of the EPA limit, in the worst sample — 80 µg/L
 58/60 SYR4 2012–2019
Total Haloacetic Acids (HAA5)
129.16 µg/L 215%
of the EPA limit, in the worst sample — 60 µg/L
 58/60 SYR4 2012–2019
Trichloroacetic Acid
61.8 µg/L
No EPA limit set
 58/60 SYR4 2012–2019
Monochloroacetic Acid
13.57 µg/L
No EPA limit set
 41/60 SYR4 2012–2019
Dibromoacetic Acid
12.71 µg/L
No EPA limit set
 14/60 SYR4 2012–2019
Lead
0.0 mg/L 0%
of the EPA limit 0.0150 mg/L
 14/14 LCR 2022
Bromoform
7.95 µg/L
No EPA limit set
 12/68 SYR4 2012–2019
Nitrate-Nitrite
780 µg/L 7.8%
of the EPA limit 10000 µg/L
 6/8 SYR4 2012–2019
Lead
130 µg/L 867%
of the EPA limit, in the worst sample — 15 µg/L
 5/60 SYR4 2013–2019
Monobromoacetic Acid
11.08 µg/L
No EPA limit set
 3/60 SYR4 2012–2019
Combined Radium (-226 And -228)
1.12 pCi/L 22%
of the EPA limit 5 pCi/L
 2/2 SYR4 2013–2019
Gross Beta Particle Activity
4.39 pCi/L
No EPA limit set
 2/2 SYR4 2013–2019
Nitrate
680 µg/L 6.8%
of the EPA limit 10000 µg/L
 2/2 SYR4 2012
Gross Alpha, Excl. Radon And U
0.3130 pCi/L 2.1%
of the EPA limit 15 pCi/L
 1/2 SYR4 2013–2019
Hexachlorocyclopentadiene
0.0400 µg/L 0.1%
of the EPA limit 50 µg/L
 1/1 SYR4 2018
Simazine
0.1200 µg/L 3%
of the EPA limit 4 µg/L
 1/1 SYR4 2018
61 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-Dichloroethane1,2-Dichloropropane11Cl-PF3OUdS4:2 Fts6:2 Fts8:2 Fts9Cl-PF3ONSAdonaArsenicAtrazineBhc-GammaBenzeneChlorobenzeneCarbon TetrachlorideChlordaneCombined UraniumDichloromethaneEndrinEthylbenzeneGlyphosateHexachlorobenzeneHfpo-DaHeptachlorHeptachlor EpoxideLassoMethoxychlorNetfosaaNfdhaNmefosaaNitritePFBSPfdaPfdoaPfeesaPfhpaPfhpsPfmbaPfmpaPFNAPFOAPFOSPfpesPftaPftrdaPfunaStyreneTetrachloroethyleneTolueneToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneLithiumO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
COWETA
Phone
918-486-8073
Email
aforum@cityofcoweta-ok.gov

Frequently asked questions about Coweta Pwa

Is Coweta Pwa tap water safe to drink?

EPA monitoring detected 25 contaminants in Coweta Pwa's water. A detection isn't the same as a violation — most levels are within federal limits. See each level and source above, and the utility's annual Consumer Confidence Report for its official compliance status.

What contaminants were detected in Coweta Pwa's water?

EPA monitoring detected Bromodichloromethane, Chloroform, Copper, Dibromochloromethane, Dichloroacetic Acid, and others. The full list with the level and data source for each is above.

How many people does Coweta Pwa serve?

Coweta Pwa reports serving 9,450 people in Oklahoma, per its EPA record.

Has Coweta Pwa had any water quality violations?

The EPA has 1116 violations on file for Coweta Pwa, of which 850 are health-based (a contaminant limit or required treatment was breached) and 2 remain open. The rest are monitoring or reporting failures.

Where does this data come from?

Every figure is official EPA drinking-water monitoring — the Lead & Copper Rule, the UCMR-5 nationwide testing program, and the EPA Six-Year Review — not our own testing. Each number is labelled with its source and period.