Is Coweta, OK Tap Water Safe? Quality & Contaminants

What was found in Coweta's water

The highest level seen across the city's suppliers, the EPA limit for each, and where the figure comes from.

Contaminant	Level vs EPA limit	Suppliers	Source
Copper	880 µg/L 68% of the EPA limit 1300 µg/L	2/2	SYR4
Nitrate-Nitrite	780 µg/L 7.8% of the EPA limit 10000 µg/L	2/2	SYR4
Chlorite	756 µg/L 76% of the EPA limit 1000 µg/L	1/2	SYR4
Nitrate	680 µg/L 6.8% of the EPA limit 10000 µg/L	1/2	SYR4
Fluoride	200 µg/L 5% of the EPA limit 4000 µg/L	1/2	SYR4
TTHM	150 µg/L 188% of the EPA limit, in the worst sample — 80 µg/L	2/2	SYR4
Lead	130 µg/L 867% of the EPA limit, in the worst sample — 15 µg/L	1/2	SYR4
Total Haloacetic Acids (HAA5)	129.16 µg/L 215% of the EPA limit, in the worst sample — 60 µg/L	2/2	SYR4
Chloroform	125 µg/L No EPA limit set	2/2	SYR4
Dichloroacetic Acid	72.37 µg/L No EPA limit set	2/2	SYR4
Trichloroacetic Acid	61.8 µg/L No EPA limit set	2/2	SYR4
Barium	45.7 µg/L 2.3% of the EPA limit 2000 µg/L	1/2	SYR4
Bromodichloromethane	28.9 µg/L No EPA limit set	2/2	SYR4
Monochloroacetic Acid	13.57 µg/L No EPA limit set	2/2	SYR4
Dibromoacetic Acid	12.71 µg/L No EPA limit set	2/2	SYR4
Dibromochloromethane	12.3 µg/L No EPA limit set	2/2	SYR4
Monobromoacetic Acid	11.08 µg/L No EPA limit set	2/2	SYR4
Bromoform	7.95 µg/L No EPA limit set	2/2	SYR4
Gross Beta Particle Activity	4.39 pCi/L No EPA limit set	1/2	SYR4
Combined Radium (-226 And -228)	1.12 pCi/L 22% of the EPA limit 5 pCi/L	1/2	SYR4
Atrazine	0.3240 µg/L 11% of the EPA limit 3 µg/L	1/2	SYR4
Gross Alpha, Excl. Radon And U	0.3130 pCi/L 2.1% of the EPA limit 15 pCi/L	1/2	SYR4
Simazine	0.1200 µg/L 3% of the EPA limit 4 µg/L	1/2	SYR4
Hexachlorocyclopentadiene	0.0400 µg/L 0.1% of the EPA limit 50 µg/L	1/2	SYR4
PFOS	0.0340 µg/L No EPA limit set	1/2	UCMR-5
PFHXS	0.0150 µg/L No EPA limit set	2/2	UCMR-5
Pfhxa	0.0083 µg/L No EPA limit set	2/2	UCMR-5
Pfba	0.0079 µg/L No EPA limit set	2/2	UCMR-5
Pfpea	0.0057 µg/L No EPA limit set	2/2	UCMR-5
PFBS	0.0032 µg/L No EPA limit set	1/2	UCMR-5
Lead	0.0 mg/L 0% of the EPA limit 0.0150 mg/L	2/2	LCR

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. These are the utilities' own EPA-reported results, not a city-wide average. A detection means the lab measured the substance — it isn't the same as exceeding a legal limit. Hover a source tag to see the EPA program and years behind each figure.

Water suppliers serving Coweta

Supplier	Population served
COWETA PWA	9,450
WAGONER CO. RWD #5	4,251

Frequently asked questions about Coweta tap water

Is Coweta tap water safe to drink?

EPA testing detected 31 contaminants in the water serving Coweta. A detection isn't the same as a violation — most detected levels are within federal limits. Check the level and source for each contaminant above, and your utility's annual Consumer Confidence Report for the official compliance status.

How many water suppliers serve Coweta?

2 public water suppliers report drinking-water monitoring for Coweta, Oklahoma to the EPA. Each is listed above with its population served.

What contaminants are in Coweta's water?

The contaminants EPA monitoring detected in Coweta include Copper, Nitrate-Nitrite, Chlorite, Nitrate, Fluoride. The full list, with the highest level found and the data source, is in the table above.

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.