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Tap water quality report

Okarche, OK

EPA monitoring detected 20 contaminants across the 2 water suppliers serving Okarche. 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
1,360
people served
20
contaminants found
Oklahoma rankings Lead in Oklahoma PFAS in Oklahoma

What was found in Okarche'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
18000 µg/L 180%
of the EPA limit, at the 95th percentile of samples — 10000 µg/L
Highest in the city: OKARCHE RWD, INC · 250 people · 2018
1/2 SYR4
Nitrate-Nitrite
14500 µg/L 145%
of the EPA limit, at the 95th percentile of samples — 10000 µg/L
Main supplier: OKARCHE · 1,110 people · 2019
Highest in the city: 17890 µg/L — OKARCHE RWD, INC · 250 people · 2019
2/2 SYR4
Copper
1249.5 µg/L 96%
of the EPA limit 1300 µg/L
Main supplier: OKARCHE · 1,110 people · 2017
Highest in the city: 2540 µg/L — OKARCHE RWD, INC · 250 people · 2017
2/2 SYR4
Fluoride
260 µg/L 6.5%
of the EPA limit 4000 µg/L
Main supplier: OKARCHE · 1,110 people · 2017
1/2 SYR4
Barium
152 µg/L 7.6%
of the EPA limit 2000 µg/L
Main supplier: OKARCHE · 1,110 people · 2017
Highest in the city: 162 µg/L — OKARCHE RWD, INC · 250 people · 2017
2/2 SYR4
TTHM
27.52 µg/L 34%
of the EPA limit 80 µg/L
Main supplier: OKARCHE · 1,110 people · 2019
2/2 SYR4
Lead
24 µg/L 160%
of the EPA limit, at the 95th percentile of samples — 15 µg/L
Main supplier: OKARCHE · 1,110 people · 2017
1/2 SYR4
Vinyl Chloride
20.75 µg/L 1038%
of the EPA limit, at the 95th percentile of samples — 2 µg/L
Highest in the city: OKARCHE RWD, INC · 250 people · 2017
1/2 SYR4
Bromoform
18.55 µg/L
No EPA limit set
Main supplier: OKARCHE · 1,110 people · 2019
2/2 SYR4
Dibromochloromethane
8 µg/L
No EPA limit set
Main supplier: OKARCHE · 1,110 people · 2019
2/2 SYR4
Arsenic
3.195 µg/L 32%
of the EPA limit 10 µg/L
Main supplier: OKARCHE · 1,110 people · 2019
Highest in the city: 6.585 µg/L — OKARCHE RWD, INC · 250 people · 2016
2/2 SYR4
Total Haloacetic Acids (HAA5)
6.42 µg/L 11%
of the EPA limit 60 µg/L
Main supplier: OKARCHE · 1,110 people · 2019
2/2 SYR4
Dibromoacetic Acid
5.36 µg/L
No EPA limit set
Main supplier: OKARCHE · 1,110 people · 2019
2/2 SYR4
Gross Beta Particle Activity
4.8337 pCi/L
No EPA limit set
Main supplier: OKARCHE · 1,110 people · 2019
1/2 SYR4
Combined Uranium
4.45 µg/L 15%
of the EPA limit 30 µg/L
Main supplier: OKARCHE · 1,110 people · 2019
1/2 SYR4
Gross Alpha, Excl. Radon And U
2.525 pCi/L 17%
of the EPA limit 15 pCi/L
Main supplier: OKARCHE · 1,110 people · 2019
1/2 SYR4
Bromodichloromethane
1.74 µg/L
No EPA limit set
Main supplier: OKARCHE · 1,110 people · 2019
2/2 SYR4
Monobromoacetic Acid
1.2 µg/L
No EPA limit set
Main supplier: OKARCHE · 1,110 people · 2019
1/2 SYR4
Combined Radium (-226 And -228)
0.3340 pCi/L 6.7%
of the EPA limit 5 pCi/L
Main supplier: OKARCHE · 1,110 people · 2019
1/2 SYR4
Lead
0.0074 mg/L 49%
of the EPA limit 0.0150 mg/L
Main supplier: OKARCHE · 1,110 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 Okarche

SupplierPopulation served
OKARCHE 1,110
OKARCHE RWD, INC 250

Frequently asked questions about Okarche tap water

Is Okarche tap water safe to drink?

EPA testing detected 20 contaminants in the water serving Okarche. 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 Okarche?

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

What contaminants are in Okarche's water?

The contaminants EPA monitoring detected in Okarche include Nitrate, Nitrate-Nitrite, Copper, Fluoride, Barium. 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.