Iron in North Dakota well water
In North Dakota, iron was detected in 94% of 14,237 tested private well samples.
Iron is a nuisance rather than a health hazard: rust stains, metallic taste, and clogged fixtures above 300 ug/L. It often occurs with manganese and can feed iron bacteria that foul plumbing.
Check your iron 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 iron
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 iron
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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 iron
Iron and manganese oxidizing filter
whole-house, at the point of entry, about $1,800
Air-injection or greensand media; fixes staining at the source.
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 iron 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 |
|---|---|---|---|---|---|
| Grand Forks | no limit | 114 | 100% | 0 | 3,300 ug/L |
| Pembina | no limit | 117 | 100% | 460 | 26,000 ug/L |
| Foster | no limit | 66 | 100% | 0 | 9,150 ug/L |
| Renville | no limit | 37 | 100% | 460 | 4,600 ug/L |
| Divide | no limit | 147 | 100% | 400 | 40,000 ug/L |
| Adams | no limit | 99 | 100% | 156 | 4,800 ug/L |
| Burleigh | no limit | 205 | 100% | 1,080 | 20,000 ug/L |
| Steele | no limit | 174 | 99% | 130 | 95,000 ug/L |
| Cass | no limit | 265 | 99% | 400 | 13,000 ug/L |
| Griggs | no limit | 162 | 99% | 185 | 33,000 ug/L |
| Bowman | no limit | 675 | 99% | 140 | 77,000 ug/L |
| Stutsman | no limit | 147 | 99% | 450 | 11,000 ug/L |
| Emmons | no limit | 263 | 98% | 300 | 8,800 ug/L |
| Hettinger | no limit | 196 | 98% | 100 | 52,000 ug/L |
| Towner | no limit | 194 | 98% | 705 | 33,000 ug/L |
- Dayton township, Nelson County100% detected of 70
- Short Creek township, Burke County100% detected of 30
- Bismarck, Burleigh County100% detected of 33
- Lincoln-Fort Rice UT, Burleigh County100% detected of 43
- Gascoyne township, Bowman County100% detected of 83
- Gascoyne, Bowman County100% detected of 56
- Villard township, McHenry County100% detected of 41
- Southwest township, Sargent County100% detected of 39
- Jackson township, Sargent County100% detected of 55
- Creel township, Ramsey County100% detected of 84
- Fillmore township, Divide County100% detected of 32
- Rock township, Benson County100% detected of 42
- Hofflund township, Williams County100% detected of 37
- Lallie township, Benson County100% detected of 69
- Southwest McKenzie UT, McKenzie County100% detected of 41
- North Central McLean UT, McLean County100% detected of 32
- South McLean UT, McLean County100% detected of 79
- Sundre township, Ward County100% detected of 35
- Mission township, Benson County100% detected of 82
- Dickinson North UT, Stark County100% detected of 66
Sources
- Individual samples from the USGS Water Quality Portal and state monitoring, summarized per geography. iron counts and shares are listed on each county and town page with their sources.