Tap WaterIndex

← Oklahoma

Tap water quality report

Barnsdall, OK

EPA monitoring detected 19 contaminants across the 2 water suppliers serving Barnsdall. 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
1,804
people served
19
contaminants found
Oklahoma rankings Lead in Oklahoma PFAS in Oklahoma

What was found in Barnsdall'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
Copper
836.75 µg/L 64%
of the EPA limit 1300 µg/L
Main supplier: BARNSDALL · 1,243 people · 2019
Highest in the city: 1105.4 µg/L — OSAGE CO RWD # 5 · 561 people · 2017
2/2 SYR4
TTHM
250.964 µg/L 314%
of the EPA limit, at the 95th percentile of samples — 80 µg/L
Main supplier: BARNSDALL · 1,243 people · 2019
Highest in the city: 259.8 µg/L — OSAGE CO RWD # 5 · 561 people · 2019
2/2 SYR4
Chloroform
216.4 µg/L
No EPA limit set
Main supplier: BARNSDALL · 1,243 people · 2019
Highest in the city: 234.95 µg/L — OSAGE CO RWD # 5 · 561 people · 2019
2/2 SYR4
Nitrate-Nitrite
230 µg/L 2.3%
of the EPA limit 10000 µg/L
Main supplier: BARNSDALL · 1,243 people · 2019
1/2 SYR4
Total Haloacetic Acids (HAA5)
175.827 µg/L 293%
of the EPA limit, at the 95th percentile of samples — 60 µg/L
Main supplier: BARNSDALL · 1,243 people · 2019
Highest in the city: 179.8 µg/L — OSAGE CO RWD # 5 · 561 people · 2019
2/2 SYR4
Trichloroacetic Acid
77.805 µg/L
No EPA limit set
Main supplier: BARNSDALL · 1,243 people · 2019
Highest in the city: 86.482 µg/L — OSAGE CO RWD # 5 · 561 people · 2019
2/2 SYR4
Dichloroacetic Acid
72.159 µg/L
No EPA limit set
Main supplier: BARNSDALL · 1,243 people · 2019
Highest in the city: 81.74 µg/L — OSAGE CO RWD # 5 · 561 people · 2019
2/2 SYR4
Lead
29.91 µg/L 199%
of the EPA limit, at the 95th percentile of samples — 15 µg/L
Main supplier: BARNSDALL · 1,243 people · 2019
Highest in the city: 43.115 µg/L — OSAGE CO RWD # 5 · 561 people · 2017
2/2 SYR4
Monochloroacetic Acid
39.64 µg/L
No EPA limit set
Main supplier: BARNSDALL · 1,243 people · 2019
2/2 SYR4
Bromodichloromethane
30.044 µg/L
No EPA limit set
Main supplier: BARNSDALL · 1,243 people · 2019
Highest in the city: 35.095 µg/L — OSAGE CO RWD # 5 · 561 people · 2019
2/2 SYR4
Barium
24.8 µg/L 1.2%
of the EPA limit 2000 µg/L
Main supplier: BARNSDALL · 1,243 people · 2013
1/2 SYR4
Monobromoacetic Acid
11.1545 µg/L
No EPA limit set
Main supplier: BARNSDALL · 1,243 people · 2019
2/2 SYR4
Dibromochloromethane
11.08 µg/L
No EPA limit set
Main supplier: BARNSDALL · 1,243 people · 2019
2/2 SYR4
Gross Beta Particle Activity
6.51 pCi/L
No EPA limit set
Main supplier: BARNSDALL · 1,243 people · 2016
1/2 SYR4
Dibromoacetic Acid
2.98 µg/L
No EPA limit set
Main supplier: BARNSDALL · 1,243 people · 2019
2/2 SYR4
Combined Radium (-226 And -228)
1.77 pCi/L 35%
of the EPA limit 5 pCi/L
Main supplier: BARNSDALL · 1,243 people · 2016
1/2 SYR4
Bromoform
1.285 µg/L
No EPA limit set
Main supplier: BARNSDALL · 1,243 people · 2019
Highest in the city: 1.713 µg/L — OSAGE CO RWD # 5 · 561 people · 2019
2/2 SYR4
Gross Alpha, Excl. Radon And U
0.3750 pCi/L 2.5%
of the EPA limit 15 pCi/L
Main supplier: BARNSDALL · 1,243 people · 2016
1/2 SYR4
Lead
0.0057 mg/L 38%
of the EPA limit 0.0150 mg/L
Main supplier: BARNSDALL · 1,243 people · 2025
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 Barnsdall

SupplierPopulation served
BARNSDALL 1,243
OSAGE CO RWD # 5 561

Frequently asked questions about Barnsdall tap water

Is Barnsdall tap water safe to drink?

EPA testing detected 19 contaminants in the water serving Barnsdall. 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 Barnsdall?

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

What contaminants are in Barnsdall's water?

The contaminants EPA monitoring detected in Barnsdall include Copper, TTHM, Chloroform, Nitrate-Nitrite, Total Haloacetic Acids (HAA5). 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.