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Tap water quality report

Edmond, OK

EPA monitoring detected 15 contaminants across the 2 water suppliers serving Edmond. A detection doesn't automatically mean the water is unsafe — see the level at the main supplier for each below, with its EPA source and period.

2
water suppliers
383
people served
15
contaminants found
Oklahoma rankings Lead in Oklahoma PFAS in Oklahoma

What was found in Edmond's water

The level at the city's main supplier, the highest level anywhere in the city, the EPA limit for each, and where every figure comes from.

ContaminantLevel vs EPA limitSuppliersSource
Nitrate-Nitrite
950 µg/L 9.5%
of the EPA limit 10000 µg/L
Main supplier: WHISPERING OAKS · 350 people · 2019
Highest in the city: 1805.5 µg/L — ROCK CREEK · 33 people · 2015
2/2 SYR4
Nitrate
860 µg/L 8.6%
of the EPA limit 10000 µg/L
Main supplier: WHISPERING OAKS · 350 people · 2019
1/2 SYR4
Barium
487.8 µg/L 24%
of the EPA limit 2000 µg/L
Main supplier: WHISPERING OAKS · 350 people · 2017
1/2 SYR4
Copper
115.4 µg/L 8.9%
of the EPA limit 1300 µg/L
Main supplier: WHISPERING OAKS · 350 people · 2017
Highest in the city: 121.1 µg/L — ROCK CREEK · 33 people · 2015
2/2 SYR4
Gross Alpha, Excl. Radon And U
12.39 pCi/L 83%
of the EPA limit 15 pCi/L
Main supplier: WHISPERING OAKS · 350 people · 2018
2/2 SYR4
Lead
5.1 µg/L 34%
of the EPA limit 15 µg/L
Main supplier: WHISPERING OAKS · 350 people · 2017
Highest in the city: 7.5 µg/L — ROCK CREEK · 33 people · 2015
2/2 SYR4
Chromium
5.1 µg/L 5.1%
of the EPA limit 100 µg/L
Main supplier: WHISPERING OAKS · 350 people · 2017
1/2 SYR4
Combined Uranium
4.6 µg/L 15%
of the EPA limit 30 µg/L
Main supplier: WHISPERING OAKS · 350 people · 2018
2/2 SYR4
Gross Beta Particle Activity
3.6575 pCi/L
No EPA limit set
Main supplier: WHISPERING OAKS · 350 people · 2018
1/2 SYR4
TTHM
3.2 µg/L 4%
of the EPA limit 80 µg/L
Main supplier: WHISPERING OAKS · 350 people · 2018
1/2 SYR4
Arsenic
2.1 µg/L 21%
of the EPA limit 10 µg/L
Highest in the city: ROCK CREEK · 33 people · 2012
1/2 SYR4
Bromoform
1.98 µg/L
No EPA limit set
Main supplier: WHISPERING OAKS · 350 people · 2019
1/2 SYR4
Combined Radium (-226 And -228)
1.314 pCi/L 26%
of the EPA limit 5 pCi/L
Main supplier: WHISPERING OAKS · 350 people · 2018
2/2 SYR4
Dibromochloromethane
1.2 µg/L
No EPA limit set
Main supplier: WHISPERING OAKS · 350 people · 2019
1/2 SYR4
Lead
0.0 mg/L 0%
of the EPA limit 0.0150 mg/L
Main supplier: WHISPERING OAKS · 350 people · 2023
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 95th percentile of the system's samples — 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 Edmond

SupplierPopulation served
WHISPERING OAKS 350
ROCK CREEK 33

Frequently asked questions about Edmond tap water

Is Edmond tap water safe to drink?

EPA testing detected 15 contaminants in the water serving Edmond. 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 Edmond?

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

What contaminants are in Edmond's water?

The contaminants EPA monitoring detected in Edmond include Nitrate-Nitrite, Nitrate, Barium, Copper, Gross Alpha, Excl. Radon And U. The full list, with the level at the main supplier 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.