Fluoride in Oklahoma well water
In Oklahoma, 3% of 2,932 tested private well samples exceeded the EPA limit for fluoride (4 mg/L).
Natural fluoride in bedrock wells can exceed the limit. Above 4 mg/L long-term exposure causes skeletal fluorosis; above 2 mg/L children can develop tooth mottling.
Check your fluoride number
Type the value from your lab report. It is compared to the EPA limit, the same way the full interpretation does it.
Test your Oklahoma well for fluoride
Certified lab analysis of your own tap water, bottles and prepaid return shipping included. The Essential well panel covers arsenic, uranium, nitrate, lead, copper, manganese, iron, sodium and bacteria; radon and PFAS are add-ons.
Order the Tap Score well water test kit, from $209Already tested? Upload the report
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Systems that remove fluoride
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Some links below are affiliate links. If you buy through one, the merchant pays us a commission at no extra cost to you. It does not change which products we list or what the data says.
For fluoride
Under-sink reverse osmosis system
under-sink or countertop, about $300
Look for NSF/ANSI 58 certification listing the contaminant you need removed.
For fluoride
Aquasana SmartFlow reverse osmosis
under-sink or countertop, about $225
Certified to NSF/ANSI 58 and 53 to reduce arsenic (96%, pentavalent), fluoride (90%), lead (99%), nitrate, nitrite and PFOA/PFOS at the kitchen tap, with a remineralizer.
Rather have it installed and sized for your well? Book a free in-home water test with a licensed local company.
Where to get a well tested for fluoride in Oklahoma: certified labs, state programs and prices.
By county, from individual samples
Public monitoring samples against the EPA limit (4 mg/L); counties with at least 30 samples.
| County | Above EPA limit | Samples | Detected | Median | Highest |
|---|---|---|---|---|---|
| Comanche | 57 | 100% | 7.44 | 35 mg/L | |
| Jackson | 57 | 96% | 1.4 | 11 mg/L | |
| Craig | 30 | 100% | 1.75 | 4.4 mg/L | |
| Ottawa | 207 | 100% | 0.53 | 17.4 mg/L | |
| Lincoln | 145 | 98% | 0.4 | 9.9 mg/L | |
| Canadian | 74 | 100% | 0.6 | 22 mg/L | |
| Caddo | 149 | 99% | 0.27 | 70 mg/L | |
| Texas | 48 | 100% | 1.6 | 4.04 mg/L | |
| Murray | 50 | 80% | 0.2 | 5.4 mg/L | |
| Seminole | 60 | 100% | 0.3 | 5.2 mg/L | |
| Woodward | 36 | 100% | 0.375 | 0.8 mg/L | |
| Haskell | 66 | 100% | 0.5 | 1 mg/L | |
| Creek | 63 | 100% | 0.2 | 1 mg/L | |
| Major | 47 | 100% | 0.28 | 0.7 mg/L | |
| Woods | 58 | 100% | 0.365 | 2.5 mg/L |
- Altus CCD, Jackson County13% of 48
- Quapaw CCD, Ottawa County12% of 140
- Anadarko CCD, Caddo County10% of 30
- Prague CCD, Lincoln County10% of 31
- Miami CCD, Ottawa County4% of 45
- El Reno CCD, Canadian County3% of 34
- East Murray CCD, Murray County2% of 41
- McCurtain CCD, Haskell County0% of 62
- South Woods CCD, Woods County0% of 46
- East Major CCD, Major County0% of 42
- Pawhuska CCD, Osage County0% of 67
- Oklahoma City Southwest CCD, Oklahoma County0% of 108
- Northwest Lincoln CCD, Lincoln County0% of 43
- Norman CCD, Cleveland County0% of 239
- Oklahoma City Southeast CCD, Oklahoma County0% of 101
- Binger-Hinton CCD, Caddo County0% of 32
- Hennessey CCD, Kingfisher County0% of 30
- Guthrie CCD, Logan County0% of 48
- Shawnee CCD, Pottawatomie County0% of 98
- East Cleveland CCD, Cleveland County0% of 168
Sources
- Individual samples from the USGS Water Quality Portal and state monitoring, summarized per geography. fluoride counts and shares are listed on each county and town page with their sources.