Sodium in Oklahoma well water
In Oklahoma, sodium was detected in 99% of 3,763 tested private well samples.
Sodium enters wells with road salt and from softeners. EPA's guidance level of 20 mg/L matters for people on sodium-restricted diets; most people are not affected below 250 mg/L.
Check your sodium 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 sodium
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 sodium
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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 sodium
Under-sink reverse osmosis system
under-sink or countertop, about $300
Look for NSF/ANSI 58 certification listing the contaminant you need removed.
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 sodium in Oklahoma: certified labs, state programs and prices.
By county, from individual samples
Public monitoring samples against the EPA limit; counties with at least 30 samples.
| County | Above EPA limit | Samples | Detected | Median | Highest |
|---|---|---|---|---|---|
| Woodward | no limit | 36 | 100% | 20 | 3,210 mg/L |
| Payne | no limit | 45 | 100% | 64.3 | 45,200 mg/L |
| Pontotoc | no limit | 45 | 100% | 8 | 606 mg/L |
| Seminole | no limit | 83 | 100% | 71 | 43,000 mg/L |
| Texas | no limit | 58 | 100% | 30 | 352 mg/L |
| Woods | no limit | 58 | 100% | 37 | 370 mg/L |
| Blaine | no limit | 40 | 100% | 63.5 | 890 mg/L |
| Canadian | no limit | 60 | 100% | 68 | 1,100 mg/L |
| Cimarron | no limit | 35 | 100% | 24 | 46.1 mg/L |
| Creek | no limit | 74 | 100% | 19.5 | 480 mg/L |
| Delaware | no limit | 41 | 100% | 8.63 | 198 mg/L |
| Grady | no limit | 54 | 100% | 26 | 750 mg/L |
| Haskell | no limit | 94 | 100% | 430 | 690 mg/L |
| Johnston | no limit | 30 | 100% | 3.45 | 141 mg/L |
| Kingfisher | no limit | 49 | 100% | 74 | 1,080 mg/L |
- McCurtain CCD, Haskell County100% detected of 66
- Prague CCD, Lincoln County100% detected of 50
- Chandler CCD, Lincoln County100% detected of 38
- Northeast Lincoln CCD, Lincoln County100% detected of 42
- Wellston CCD, Lincoln County100% detected of 38
- Northwest Lincoln CCD, Lincoln County100% detected of 66
- Hennessey CCD, Kingfisher County100% detected of 32
- Seminole North CCD, Seminole County100% detected of 32
- Purcell CCD, McClain County100% detected of 37
- Wanette-Asher CCD, Pottawatomie County100% detected of 51
- Hominy CCD, Osage County100% detected of 36
- Pawhuska CCD, Osage County100% detected of 85
- East Murray CCD, Murray County100% detected of 43
- Miami CCD, Ottawa County100% detected of 95
- Oklahoma City Northwest CCD, Oklahoma County100% detected of 56
- Oklahoma City Southwest CCD, Oklahoma County100% detected of 116
- Oklahoma City Southeast CCD, Oklahoma County100% detected of 147
- East Logan CCD, Logan County100% detected of 38
- Crescent CCD, Logan County100% detected of 31
- Guthrie CCD, Logan County100% detected of 93
Sources
- Individual samples from the USGS Water Quality Portal and state monitoring, summarized per geography. sodium counts and shares are listed on each county and town page with their sources.