Fluoride in Kentucky well water
In Kentucky, 2% of 2,963 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 Kentucky 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 Kentucky: 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 |
|---|---|---|---|---|---|
| Meade | 125 | 99% | 1.5 | 7 mg/L | |
| Henderson | 83 | 100% | 0.3 | 6.4 mg/L | |
| Breckinridge | 61 | 98% | 1.8 | 7 mg/L | |
| Hopkins | 60 | 100% | 0.5 | 6.3 mg/L | |
| Hart | 48 | 100% | 0.55 | 13 mg/L | |
| Christian | 52 | 100% | 0.2 | 4.2 mg/L | |
| Daviess | 97 | 100% | 0.2 | 7.7 mg/L | |
| Jefferson | 445 | 98% | 0.1 | 73 mg/L | |
| Hancock | 41 | 100% | 0.2 | 0.9 mg/L | |
| Warren | 31 | 100% | 0.6 | 4 mg/L | |
| Letcher | 125 | 100% | 0.1 | 1.2 mg/L | |
| Fayette | 73 | 100% | 0.5 | 1.3 mg/L | |
| Fulton | 63 | 100% | 0.1 | 0.4 mg/L | |
| Carlisle | 40 | 100% | 0.1 | 0.4 mg/L | |
| McCracken | 33 | 100% | 0.1 | 0.9 mg/L |
- Spottsville CCD, Henderson County16% of 31
- Battletown-Payneville CCD, Meade County13% of 62
- Flaherty CCD, Meade County9% of 33
- Utica-Stanley CCD, Daviess County3% of 34
- Corydon CCD, Henderson County3% of 35
- North Dixie CCD, Jefferson County<1% of 157
- Edmonton CCD, Metcalfe County0% of 36
- Whitesburg CCD, Letcher County0% of 58
- Madisonville CCD, Hopkins County0% of 31
- Lexington-Fayette Northeast CCD, Fayette County0% of 39
- Owensboro CCD, Daviess County0% of 51
- Carrollton CCD, Carroll County0% of 33
- Hickory-Lowes CCD, Graves County0% of 30
- Clinton CCD, Hickman County0% of 49
- Fulton CCD, Fulton County0% of 34
- Jenkins CCD, Letcher County0% of 37
- Louisville West CCD, Jefferson County0% of 87
- Louisville Central CCD, Jefferson County0% of 69
- Hillsboro CCD, Fleming County0% of 49
- Louisville South CCD, Jefferson County0% of 75
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.