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Tap water quality report

Hydro, OK

EPA monitoring detected 17 contaminants across the 1 water supplier serving Hydro. 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.

1
water supplier
1,060
people served
17
contaminants found
Oklahoma rankings Lead in Oklahoma PFAS in Oklahoma

What was found in Hydro'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
11100 µg/L 111%
of the EPA limit, at the 95th percentile of samples — 10000 µg/L
Main supplier: HYDRO PWA · 1,060 people · 2019
1/1 SYR4
Copper
329 µg/L 25%
of the EPA limit 1300 µg/L
Main supplier: HYDRO PWA · 1,060 people · 2019
1/1 SYR4
Barium
289 µg/L 14%
of the EPA limit 2000 µg/L
Main supplier: HYDRO PWA · 1,060 people · 2019
1/1 SYR4
Chloroform
28.03 µg/L
No EPA limit set
Main supplier: HYDRO PWA · 1,060 people · 2019
1/1 SYR4
Lithium
18.6 µg/L
No EPA limit set
Main supplier: HYDRO PWA · 1,060 people · 2023
1/1 UCMR-5
Lead
11.7 µg/L 78%
of the EPA limit 15 µg/L
Main supplier: HYDRO PWA · 1,060 people · 2019
1/1 SYR4
Bromodichloromethane
8.675 µg/L
No EPA limit set
Main supplier: HYDRO PWA · 1,060 people · 2019
1/1 SYR4
Gross Alpha, Excl. Radon And U
7.95 pCi/L 53%
of the EPA limit 15 pCi/L
Main supplier: HYDRO PWA · 1,060 people · 2016
1/1 SYR4
Dibromochloromethane
6.175 µg/L
No EPA limit set
Main supplier: HYDRO PWA · 1,060 people · 2019
1/1 SYR4
trans-1,2-Dichloroethylene
5.65 µg/L 5.7%
of the EPA limit 100 µg/L
Main supplier: HYDRO PWA · 1,060 people · 2018
1/1 SYR4
Arsenic
4.96 µg/L 50%
of the EPA limit 10 µg/L
Main supplier: HYDRO PWA · 1,060 people · 2019
1/1 SYR4
cis-1,2-Dichloroethylene
4.25 µg/L 6.1%
of the EPA limit 70 µg/L
Main supplier: HYDRO PWA · 1,060 people · 2018
1/1 SYR4
Combined Uranium
4.168 µg/L 14%
of the EPA limit 30 µg/L
Main supplier: HYDRO PWA · 1,060 people · 2016
1/1 SYR4
Bromoform
3.56 µg/L
No EPA limit set
Main supplier: HYDRO PWA · 1,060 people · 2019
1/1 SYR4
TTHM
2.5 µg/L 3.1%
of the EPA limit 80 µg/L
Main supplier: HYDRO PWA · 1,060 people · 2019
1/1 SYR4
Carbon Tetrachloride
1.1 µg/L 22%
of the EPA limit 5 µg/L
Main supplier: HYDRO PWA · 1,060 people · 2018
1/1 SYR4
Lead
0.0064 mg/L 43%
of the EPA limit 0.0150 mg/L
Main supplier: HYDRO PWA · 1,060 people · 2025
1/1 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 Hydro

SupplierPopulation served
HYDRO PWA 1,060

Frequently asked questions about Hydro tap water

Is Hydro tap water safe to drink?

EPA testing detected 17 contaminants in the water serving Hydro. 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 Hydro?

1 public water supplier report drinking-water monitoring for Hydro, Oklahoma to the EPA. Each is listed above with its population served.

What contaminants are in Hydro's water?

The contaminants EPA monitoring detected in Hydro include Nitrate-Nitrite, Copper, Barium, Chloroform, Lithium. 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.