Is Red Rock, OK Tap Water Safe? Quality & Contaminants

What was found in Red Rock'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	1940 µg/L 149% of the EPA limit, in the worst sample — 1300 µg/L	2/2	SYR4
Nitrate-Nitrite	1280 µg/L 13% of the EPA limit 10000 µg/L	2/2	SYR4
Nitrate	700 µg/L 7% of the EPA limit 10000 µg/L	1/2	SYR4
Total Haloacetic Acids (HAA5)	394 µg/L 657% of the EPA limit, in the worst sample — 60 µg/L	2/2	SYR4
TTHM	311 µg/L 389% of the EPA limit, in the worst sample — 80 µg/L	2/2	SYR4
Fluoride	280 µg/L 7% of the EPA limit 4000 µg/L	2/2	SYR4
Chloroform	278 µg/L No EPA limit set	2/2	SYR4
Trichloroacetic Acid	221 µg/L No EPA limit set	2/2	SYR4
Barium	156 µg/L 7.8% of the EPA limit 2000 µg/L	2/2	SYR4
Dichloroacetic Acid	137 µg/L No EPA limit set	2/2	SYR4
Bromodichloromethane	73.2 µg/L No EPA limit set	2/2	SYR4
Dibromochloromethane	69.4 µg/L No EPA limit set	2/2	SYR4
Bromoform	59.2 µg/L No EPA limit set	2/2	SYR4
Monochloroacetic Acid	35.1 µg/L No EPA limit set	1/2	SYR4
Combined Uranium	19.6 µg/L 65% of the EPA limit 30 µg/L	2/2	SYR4
Lead	15.4 µg/L 103% of the EPA limit, in the worst sample — 15 µg/L	2/2	SYR4
Gross Alpha, Excl. Radon And U	13.8 pCi/L 92% of the EPA limit 15 pCi/L	2/2	SYR4
Dibromoacetic Acid	13.5 µg/L No EPA limit set	2/2	SYR4
Gross Beta Particle Activity	11.3 pCi/L No EPA limit set	2/2	SYR4
Arsenic	6.7 µg/L 67% of the EPA limit 10 µg/L	1/2	SYR4
Monobromoacetic Acid	3.34 µg/L No EPA limit set	2/2	SYR4
Xylenes, Total	1.59 µg/L 0% of the EPA limit 10000 µg/L	1/2	SYR4
Combined Radium (-226 And -228)	1.4 pCi/L 28% of the EPA limit 5 pCi/L	2/2	SYR4
Toluene	0.5500 µg/L 0.1% of the EPA limit 1000 µg/L	1/2	SYR4
Ethylbenzene	0.5000 µg/L 0.1% of the EPA limit 700 µg/L	1/2	SYR4
Lead	0.0106 mg/L 71% 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 Red Rock

Supplier	Population served
RED ROCK	293
OTOE-MISSOURIA TRIBE	250

Frequently asked questions about Red Rock tap water

Is Red Rock tap water safe to drink?

EPA testing detected 26 contaminants in the water serving Red Rock. 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 Red Rock?

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

What contaminants are in Red Rock's water?

The contaminants EPA monitoring detected in Red Rock include Copper, Nitrate-Nitrite, Nitrate, Total Haloacetic Acids (HAA5), 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.