Chloride in North Carolina well water
In North Carolina, chloride was detected in 100% of 3,897 tested private well samples.
Chloride mainly comes from road salt and water softener discharge. Above 250 mg/L water tastes salty and corrodes plumbing. Rising chloride in a well usually means road salt is reaching the aquifer.
Check your chloride 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 North Carolina well for chloride
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 chloride
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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 chloride
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 chloride in North 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 |
|---|---|---|---|---|---|
| Currituck | no limit | 38 | 100% | 25.3 | 818 mg/L |
| Dare | no limit | 74 | 100% | 31.5 | 9,860 mg/L |
| Duplin | no limit | 69 | 100% | 4.4 | 43.4 mg/L |
| Edgecombe | no limit | 69 | 100% | 13 | 37 mg/L |
| Greene | no limit | 300 | 100% | 20.9 | 127 mg/L |
| Halifax | no limit | 38 | 100% | 16 | 870 mg/L |
| Hertford | no limit | 44 | 100% | 8 | 55 mg/L |
| Hyde | no limit | 93 | 100% | 136 | 4,550 mg/L |
| Iredell | no limit | 47 | 100% | 1.75 | 4.2 mg/L |
| Johnston | no limit | 170 | 100% | 11 | 72 mg/L |
| Lee | no limit | 57 | 100% | 9 | 284 mg/L |
| Lenoir | no limit | 72 | 100% | 6.45 | 45 mg/L |
| Martin | no limit | 449 | 100% | 15 | 1,400 mg/L |
| Wilson | no limit | 33 | 100% | 10 | 21 mg/L |
| Montgomery | no limit | 32 | 100% | 5.21 | 560 mg/L |
- Williams township, Martin County100% detected of 39
- Township 2, Lower Conetoe, Edgecombe County100% detected of 55
- Township 15, Huntersville, Mecklenburg County100% detected of 125
- Nags Head township, Dare County100% detected of 30
- Columbia township, Tyrrell County100% detected of 37
- Ormonds township, Greene County100% detected of 241
- Olds township, Greene County100% detected of 43
- Smithfield township, Johnston County100% detected of 82
- Laurel Hill township, Scotland County100% detected of 34
- Swift Creek township, Wake County100% detected of 44
- Saulston township, Wayne County100% detected of 68
- Fork township, Wayne County100% detected of 67
- Nahunta township, Wayne County100% detected of 94
- Township 7, Pocket, Lee County100% detected of 43
- Kinston township, Lenoir County100% detected of 34
- Bingham township, Orange County100% detected of 58
- Scuppernong township, Washington County100% detected of 44
- Hamilton township, Martin County100% detected of 51
- Griffins township, Martin County100% detected of 47
- Jamesville township, Martin County100% detected of 71
Sources
- Individual samples from the USGS Water Quality Portal and state monitoring, summarized per geography. chloride counts and shares are listed on each county and town page with their sources.