Sodium in Arkansas well water
In Arkansas, sodium was detected in 99% of 4,065 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 Arkansas 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 Arkansas: 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 |
|---|---|---|---|---|---|
| Arkansas | no limit | 121 | 100% | 46 | 123 mg/L |
| Benton | no limit | 93 | 100% | 6.4 | 620 mg/L |
| Ashley | no limit | 43 | 100% | 35 | 238 mg/L |
| Bradley | no limit | 33 | 100% | 51 | 182 mg/L |
| Chicot | no limit | 69 | 100% | 88 | 570 mg/L |
| Clark | no limit | 33 | 100% | 60 | 3,680 mg/L |
| Clay | no limit | 47 | 100% | 37 | 210 mg/L |
| Columbia | no limit | 48 | 100% | 70.5 | 237 mg/L |
| Conway | no limit | 50 | 100% | 12.6 | 198 mg/L |
| Craighead | no limit | 123 | 100% | 16 | 93.7 mg/L |
| Crawford | no limit | 37 | 100% | 13 | 155 mg/L |
| Crittenden | no limit | 98 | 100% | 13 | 55 mg/L |
| Cross | no limit | 49 | 100% | 21.3 | 42 mg/L |
| Desha | no limit | 87 | 100% | 65 | 675 mg/L |
| Drew | no limit | 65 | 100% | 67 | 486 mg/L |
- Big Rock township, Pulaski County100% detected of 88
- Township 5, Benton County100% detected of 56
- Lonoke township, Lonoke County100% detected of 63
- Caddo township, Clark County100% detected of 33
- Keevil township, Monroe County100% detected of 50
- Greenfield township, Monroe County100% detected of 49
- Brinkley township, Monroe County100% detected of 60
- Cotton Plant township, Woodruff County100% detected of 82
- Vaugine township, Jefferson County100% detected of 90
- Plum Bayou township, Jefferson County100% detected of 30
- Chickasawba township, Mississippi County100% detected of 40
- Jonesboro township, Craighead County100% detected of 30
- Whittington township, Garland County100% detected of 35
- Middle township, Franklin County100% detected of 52
- El Dorado township, Union County98% detected of 151
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.