Chloride in North Dakota well water
In North Dakota, chloride was detected in 99% of 15,025 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 Dakota 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 Dakota: 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 |
|---|---|---|---|---|---|
| McIntosh | no limit | 219 | 100% | 14 | 430 mg/L |
| Steele | no limit | 174 | 100% | 26 | 1,590 mg/L |
| Divide | no limit | 157 | 100% | 26 | 7,200 mg/L |
| Traill | no limit | 87 | 100% | 293 | 1,600 mg/L |
| Oliver | no limit | 51 | 100% | 11 | 561 mg/L |
| Sargent | no limit | 273 | 100% | 33 | 1,100 mg/L |
| Pierce | no limit | 131 | 100% | 11 | 677 mg/L |
| Morton | no limit | 408 | 100% | 9.55 | 1,010 mg/L |
| McLean | no limit | 411 | 100% | 5.6 | 37,300 mg/L |
| Grand Forks | no limit | 114 | 100% | 74 | 5,640 mg/L |
| Foster | no limit | 69 | 100% | 38 | 866 mg/L |
| Pembina | no limit | 121 | 100% | 45 | 29,000 mg/L |
| Mountrail | no limit | 290 | 100% | 9.27 | 190,000 mg/L |
| Barnes | no limit | 79 | 100% | 30 | 2,650 mg/L |
| Griggs | no limit | 164 | 100% | 52 | 1,960 mg/L |
- Mission township, Benson County100% detected of 82
- Lallie township, Benson County100% detected of 69
- West Fargo, Cass County100% detected of 85
- Minco township, Benson County100% detected of 447
- Dwight township, Richland County100% detected of 30
- North McKenzie UT, McKenzie County100% detected of 40
- Southwest Sioux UT, Sioux County100% detected of 61
- Southwest McKenzie UT, McKenzie County100% detected of 41
- North Pierce UT, Pierce County100% detected of 45
- East Morton UT, Morton County100% detected of 167
- Mandan UT, Morton County100% detected of 54
- West Morton UT, Morton County100% detected of 165
- East McLean UT, McLean County100% detected of 75
- North Central McLean UT, McLean County100% detected of 30
- South McLean UT, McLean County100% detected of 78
- Northeast Slope UT, Slope County100% detected of 55
- East Grant UT, Grant County100% detected of 50
- Creel township, Ramsey County100% detected of 89
- Odessa township, Ramsey County100% detected of 113
- Rock township, Benson County100% detected of 42
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.