Sodium in New Jersey well water
In New Jersey, sodium was detected in 100% of 8,442 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 New Jersey 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 New Jersey: 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 |
|---|---|---|---|---|---|
| Atlantic | no limit | 434 | 100% | 5.92 | 7,620 mg/L |
| Bergen | no limit | 201 | 100% | 15 | 851 mg/L |
| Burlington | no limit | 914 | 100% | 2.7 | 742 mg/L |
| Camden | no limit | 983 | 100% | 12 | 670 mg/L |
| Sussex | no limit | 174 | 100% | 17.5 | 673 mg/L |
| Union | no limit | 62 | 100% | 23 | 119 mg/L |
| Warren | no limit | 134 | 100% | 8.33 | 471 mg/L |
| Cumberland | no limit | 376 | 100% | 6.11 | 12,000 mg/L |
| Essex | no limit | 61 | 100% | 21 | 272 mg/L |
| Gloucester | no limit | 1,026 | 100% | 26 | 1,400 mg/L |
| Hunterdon | no limit | 245 | 100% | 13.6 | 240 mg/L |
| Mercer | no limit | 273 | 100% | 12 | 251 mg/L |
| Monmouth | no limit | 398 | 100% | 3.5 | 8,120 mg/L |
| Morris | no limit | 696 | 100% | 23 | 775 mg/L |
| Ocean | no limit | 834 | 100% | 4.6 | 552 mg/L |
- Union Beach borough, Monmouth County100% detected of 33
- Upper Freehold township, Monmouth County100% detected of 36
- Freehold township, Monmouth County100% detected of 32
- Middletown township, Monmouth County100% detected of 30
- Harrison township, Gloucester County100% detected of 35
- Franklin township, Gloucester County100% detected of 50
- West Deptford township, Gloucester County100% detected of 77
- Mantua township, Gloucester County100% detected of 53
- Washington township, Gloucester County100% detected of 140
- Greenwich township, Gloucester County100% detected of 114
- Paulsboro borough, Gloucester County100% detected of 32
- Glassboro borough, Gloucester County100% detected of 45
- Monroe township, Gloucester County100% detected of 109
- Logan township, Gloucester County100% detected of 162
- Clayton borough, Gloucester County100% detected of 45
- West Windsor township, Mercer County100% detected of 49
- Ewing township, Mercer County100% detected of 39
- Hopewell township, Mercer County100% detected of 74
- Tabernacle township, Burlington County100% detected of 37
- West Amwell township, Hunterdon County100% detected of 63
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.