Sodium in Louisiana well water
In Louisiana, sodium was detected in 100% of 8,570 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 Louisiana 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 Louisiana: 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 |
|---|---|---|---|---|---|
| Acadia | no limit | 86 | 100% | 67.5 | 14,000 mg/L |
| Ascension | no limit | 70 | 100% | 89.5 | 960 mg/L |
| Allen | no limit | 115 | 100% | 68 | 430 mg/L |
| Beauregard | no limit | 144 | 100% | 19 | 520 mg/L |
| Bienville | no limit | 184 | 100% | 21 | 85,000 mg/L |
| Bossier | no limit | 384 | 100% | 68.5 | 573 mg/L |
| Avoyelles | no limit | 256 | 100% | 100 | 2,000 mg/L |
| Calcasieu | no limit | 378 | 100% | 58 | 560 mg/L |
| Caldwell | no limit | 75 | 100% | 120 | 2,400 mg/L |
| Cameron | no limit | 93 | 100% | 280 | 7,200 mg/L |
| Catahoula | no limit | 130 | 100% | 75.5 | 5,100 mg/L |
| Claiborne | no limit | 72 | 100% | 68.8 | 145 mg/L |
| Concordia | no limit | 85 | 100% | 120 | 2,500 mg/L |
| De Soto | no limit | 176 | 100% | 140 | 1,100 mg/L |
| East Baton Rouge | no limit | 328 | 100% | 73 | 2,300 mg/L |
- District 3, Acadia Parish100% detected of 30
- District 3, Avoyelles Parish100% detected of 72
- District 1, Avoyelles Parish100% detected of 52
- District 6, Bienville Parish100% detected of 45
- District 7, Bienville Parish100% detected of 50
- District 1, Bienville Parish100% detected of 31
- District 4, Avoyelles Parish100% detected of 43
- District 1, Caddo Parish100% detected of 159
- District 8, Caddo Parish100% detected of 57
- District 5B, Concordia Parish100% detected of 48
- District 1C, De Soto Parish100% detected of 33
- District 6, De Soto Parish100% detected of 48
- District 3, Grant Parish100% detected of 115
- District 2, Grant Parish100% detected of 44
- District G, Lafayette Parish100% detected of 52
- District C, Lafayette Parish100% detected of 31
- District 9, Livingston Parish100% detected of 34
- New Orleans, Orleans Parish100% detected of 39
- District C, Rapides Parish100% detected of 47
- District E, Rapides Parish100% detected of 246
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.