Is Del City, OK Tap Water Safe? Quality & Contaminants

What was found in Del City'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
Nitrate-Nitrite	9110 µg/L 91% of the EPA limit 10000 µg/L	2/2	SYR4
Copper	754.8 µg/L 58% of the EPA limit 1300 µg/L	2/2	SYR4
Barium	731 µg/L 37% of the EPA limit 2000 µg/L	2/2	SYR4
Fluoride	640 µg/L 16% of the EPA limit 4000 µg/L	1/2	SYR4
TTHM	123 µg/L 154% of the EPA limit, in the worst sample — 80 µg/L	2/2	SYR4
Chloroform	61.6 µg/L No EPA limit set	2/2	SYR4
Total Haloacetic Acids (HAA5)	41.6 µg/L 69% of the EPA limit 60 µg/L	1/2	SYR4
Bromodichloromethane	38.2 µg/L No EPA limit set	2/2	SYR4
Dibromochloromethane	37.7 µg/L No EPA limit set	2/2	SYR4
Bromoform	35.4 µg/L No EPA limit set	2/2	SYR4
Lithium	28.5 µg/L No EPA limit set	1/2	UCMR-5
Di(2-ethylhexyl) Phthalate	23 µg/L 383% of the EPA limit, in the worst sample — 6 µg/L	1/2	SYR4
Dichloroacetic Acid	22 µg/L No EPA limit set	1/2	SYR4
Lead	21.7 µg/L 145% of the EPA limit, in the worst sample — 15 µg/L	1/2	SYR4
Trichloroacetic Acid	16.5 µg/L No EPA limit set	1/2	SYR4
Chromium	8.9 µg/L 8.9% of the EPA limit 100 µg/L	2/2	SYR4
Gross Beta Particle Activity	8.539 pCi/L No EPA limit set	2/2	SYR4
Monochloroacetic Acid	8.25 µg/L No EPA limit set	1/2	SYR4
Dibromoacetic Acid	7.78 µg/L No EPA limit set	1/2	SYR4
Gross Alpha, Excl. Radon And U	6.9 pCi/L 46% of the EPA limit 15 pCi/L	1/2	SYR4
Arsenic	4.1 µg/L 41% of the EPA limit 10 µg/L	1/2	SYR4
Combined Radium (-226 And -228)	2.75 pCi/L 55% of the EPA limit 5 pCi/L	2/2	SYR4
Tetrachloroethylene	2.1 µg/L 42% of the EPA limit 5 µg/L	1/2	SYR4
Combined Uranium	1.8 µg/L 6% of the EPA limit 30 µg/L	1/2	SYR4
Monobromoacetic Acid	1.53 µg/L No EPA limit set	1/2	SYR4
Dichloromethane	1.4 µg/L 28% of the EPA limit 5 µg/L	1/2	SYR4
Pfba	0.0070 µg/L No EPA limit set	1/2	UCMR-5
Pfpea	0.0059 µg/L No EPA limit set	1/2	UCMR-5
Pfhxa	0.0043 µg/L No EPA limit set	1/2	UCMR-5
Lead	0.0016 mg/L 11% 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 Del City

Supplier	Population served
DEL CITY	22,128
SKYLINE MHP	120

Frequently asked questions about Del City tap water

Is Del City tap water safe to drink?

EPA testing detected 30 contaminants in the water serving Del City. 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 Del City?

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

What contaminants are in Del City's water?

The contaminants EPA monitoring detected in Del City include Nitrate-Nitrite, Copper, Barium, Fluoride, TTHM. 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.