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Tap water quality report

Holdenville, OK

EPA monitoring detected 21 contaminants across the 2 water suppliers serving Holdenville. 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
5,532
people served
21
contaminants found
Oklahoma rankings Lead in Oklahoma PFAS in Oklahoma

What was found in Holdenville'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
604 µg/L 6%
of the EPA limit 10000 µg/L
Main supplier: HOLDENVILLE · 4,732 people · 2019
1/2 SYR4
Copper
210.322 µg/L 16%
of the EPA limit 1300 µg/L
Main supplier: HOLDENVILLE · 4,732 people · 2017
2/2 SYR4
TTHM
129.345 µg/L 162%
of the EPA limit, at the 95th percentile of samples — 80 µg/L
Main supplier: HOLDENVILLE · 4,732 people · 2019
Highest in the city: 196.95 µg/L — HUGHES CO. RWD #5 · 800 people · 2019
2/2 SYR4
Fluoride
190 µg/L 4.8%
of the EPA limit 4000 µg/L
Highest in the city: HUGHES CO. RWD #5 · 800 people · 2019
1/2 SYR4
Chloroform
88.14 µg/L
No EPA limit set
Main supplier: HOLDENVILLE · 4,732 people · 2019
Highest in the city: 122.8 µg/L — HUGHES CO. RWD #5 · 800 people · 2019
2/2 SYR4
Barium
88.1 µg/L 4.4%
of the EPA limit 2000 µg/L
Main supplier: HOLDENVILLE · 4,732 people · 2013
Highest in the city: 105.8 µg/L — HUGHES CO. RWD #5 · 800 people · 2019
2/2 SYR4
Total Haloacetic Acids (HAA5)
53.48 µg/L 89%
of the EPA limit 60 µg/L
Main supplier: HOLDENVILLE · 4,732 people · 2019
Highest in the city: 64.7 µg/L — HUGHES CO. RWD #5 · 800 people · 2019
2/2 SYR4
Bromodichloromethane
38.345 µg/L
No EPA limit set
Main supplier: HOLDENVILLE · 4,732 people · 2019
Highest in the city: 52.095 µg/L — HUGHES CO. RWD #5 · 800 people · 2019
2/2 SYR4
Trichloroacetic Acid
26.78 µg/L
No EPA limit set
Main supplier: HOLDENVILLE · 4,732 people · 2019
Highest in the city: 33.05 µg/L — HUGHES CO. RWD #5 · 800 people · 2019
2/2 SYR4
Dibromochloromethane
30.6 µg/L
No EPA limit set
Main supplier: HOLDENVILLE · 4,732 people · 2019
2/2 SYR4
Dichloroacetic Acid
28.995 µg/L
No EPA limit set
Main supplier: HOLDENVILLE · 4,732 people · 2019
2/2 SYR4
Lead
19.4725 µg/L 130%
of the EPA limit, at the 95th percentile of samples — 15 µg/L
Main supplier: HOLDENVILLE · 4,732 people · 2017
2/2 SYR4
Dibromoacetic Acid
9.19 µg/L
No EPA limit set
Main supplier: HOLDENVILLE · 4,732 people · 2019
2/2 SYR4
Bromoform
8.25 µg/L
No EPA limit set
Main supplier: HOLDENVILLE · 4,732 people · 2019
2/2 SYR4
Gross Beta Particle Activity
5.79 pCi/L
No EPA limit set
Main supplier: HOLDENVILLE · 4,732 people · 2014
Highest in the city: 8.173 pCi/L — HUGHES CO. RWD #5 · 800 people · 2016
2/2 SYR4
Monochloroacetic Acid
4.404 µg/L
No EPA limit set
Main supplier: HOLDENVILLE · 4,732 people · 2019
Highest in the city: 5.595 µg/L — HUGHES CO. RWD #5 · 800 people · 2019
2/2 SYR4
Gross Alpha, Excl. Radon And U
0.5060 pCi/L 3.4%
of the EPA limit 15 pCi/L
Main supplier: HOLDENVILLE · 4,732 people · 2014
Highest in the city: 5.415 pCi/L — HUGHES CO. RWD #5 · 800 people · 2016
2/2 SYR4
Combined Radium (-226 And -228)
0.0670 pCi/L 1.3%
of the EPA limit 5 pCi/L
Main supplier: HOLDENVILLE · 4,732 people · 2014
Highest in the city: 4.207 pCi/L — HUGHES CO. RWD #5 · 800 people · 2016
2/2 SYR4
Monobromoacetic Acid
3.956 µg/L
No EPA limit set
Main supplier: HOLDENVILLE · 4,732 people · 2019
2/2 SYR4
Pfba
0.0060 µg/L
No EPA limit set
Main supplier: HOLDENVILLE · 4,732 people · 2025
1/2 UCMR-5
Lead
0.0018 mg/L 12%
of the EPA limit 0.0150 mg/L
Main supplier: HOLDENVILLE · 4,732 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 Holdenville

SupplierPopulation served
HOLDENVILLE 4,732
HUGHES CO. RWD #5 800

Frequently asked questions about Holdenville tap water

Is Holdenville tap water safe to drink?

EPA testing detected 21 contaminants in the water serving Holdenville. 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 Holdenville?

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

What contaminants are in Holdenville's water?

The contaminants EPA monitoring detected in Holdenville include Nitrate-Nitrite, Copper, TTHM, Fluoride, Chloroform. 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.