Sodium in Mississippi well water
In Mississippi, sodium was detected in 100% of 4,286 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 Mississippi 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 Mississippi: 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 |
|---|---|---|---|---|---|
| Attala | no limit | 33 | 100% | 14 | 135 mg/L |
| Bolivar | no limit | 67 | 100% | 16.4 | 540 mg/L |
| Calhoun | no limit | 61 | 100% | 180 | 412 mg/L |
| Clarke | no limit | 47 | 100% | 90 | 294 mg/L |
| Coahoma | no limit | 38 | 100% | 126 | 420 mg/L |
| Forrest | no limit | 81 | 100% | 18 | 21,000 mg/L |
| Franklin | no limit | 41 | 100% | 280 | 3,100 mg/L |
| Hancock | no limit | 63 | 100% | 106 | 1,200 mg/L |
| Harrison | no limit | 388 | 100% | 65 | 6,900 mg/L |
| Hinds | no limit | 105 | 100% | 122 | 1,100 mg/L |
| Holmes | no limit | 38 | 100% | 61 | 330 mg/L |
| Itawamba | no limit | 50 | 100% | 3.2 | 29 mg/L |
| Jackson | no limit | 248 | 100% | 172 | 23,400 mg/L |
| Jasper | no limit | 36 | 100% | 117 | 21,000 mg/L |
| Adams | no limit | 64 | 100% | 40 | 500 mg/L |
- District 4, Washington County100% detected of 122
- District 1, Washington County100% detected of 30
- District 5, Washington County100% detected of 31
- District 3, Pearl River County100% detected of 36
- District 5, Hinds County100% detected of 34
- District 4, Jackson County100% detected of 32
- District 3, Jackson County100% detected of 59
- District 1, Jackson County100% detected of 91
- District 2, Jackson County100% detected of 39
- District 5, Harrison County100% detected of 57
- District 2, Harrison County100% detected of 56
- District 4, Harrison County100% detected of 40
- District 3, Harrison County100% detected of 50
- District 1, Harrison County100% detected of 185
- District 2, Hancock County100% detected of 37
- District 1, Bolivar County100% detected of 41
- District 1, Monroe County100% detected of 43
- District 5, Lincoln County100% detected of 297
- District 3, Lamar County100% detected of 81
- District 1, Franklin County100% detected of 31
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.