Sodium in South Carolina well water
In South Carolina, sodium was detected in 100% of 2,070 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 South Carolina 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 South Carolina: 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 |
|---|---|---|---|---|---|
| York | no limit | 52 | 100% | 8.35 | 47 mg/L |
| Allendale | no limit | 39 | 100% | 3.1 | 60 mg/L |
| Bamberg | no limit | 31 | 100% | 3 | 7.7 mg/L |
| Barnwell | no limit | 164 | 100% | 1.8 | 180 mg/L |
| Beaufort | no limit | 179 | 100% | 29.5 | 8,300 mg/L |
| Berkeley | no limit | 68 | 100% | 9.53 | 510 mg/L |
| Charleston | no limit | 328 | 100% | 525 | 2,520 mg/L |
| Colleton | no limit | 54 | 100% | 75.5 | 1,040 mg/L |
| Florence | no limit | 35 | 100% | 6.21 | 140 mg/L |
| Georgetown | no limit | 53 | 100% | 220 | 980 mg/L |
| Hampton | no limit | 38 | 100% | 7.08 | 250 mg/L |
| Horry | no limit | 262 | 100% | 301 | 3,100 mg/L |
| Lexington | no limit | 62 | 100% | 4.92 | 65 mg/L |
| Orangeburg | no limit | 172 | 100% | 4.33 | 65 mg/L |
| Richland | no limit | 129 | 100% | 5.94 | 55 mg/L |
- Kline-Snelling CCD, Barnwell County100% detected of 138
- Hilton Head Island CCD, Beaufort County100% detected of 57
- Beaufort-Port Royal CCD, Beaufort County100% detected of 58
- Little River CCD, Horry County100% detected of 73
- Myrtle Beach CCD, Horry County100% detected of 147
- Columbia CCD, Richland County100% detected of 86
- Bowman CCD, Orangeburg County100% detected of 102
- Charleston Central CCD, Charleston County100% detected of 197
- West Ashley CCD, Charleston County100% detected of 75
- St. Helena Island CCD, Beaufort County100% detected of 31
- Monetta CCD, Aiken County100% detected of 49
- Jackson CCD, Aiken County97% detected of 32
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.