Iron in Oregon well water
In Oregon, iron was detected in 96% of 8,259 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 Oregon 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 Oregon: 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 |
|---|---|---|---|---|---|
| Clatsop | no limit | 321 | 100% | 45 | 296,000 ug/L |
| Columbia | no limit | 146 | 100% | 763 | 757,000 ug/L |
| Baker | no limit | 33 | 100% | 789 | 29,100 ug/L |
| Coos | no limit | 167 | 100% | 2,120 | 49,100 ug/L |
| Crook | no limit | 40 | 100% | 345 | 8,600 ug/L |
| Lake | no limit | 43 | 100% | 331 | 34,000 ug/L |
| Curry | no limit | 49 | 100% | 212 | 131,000 ug/L |
| Malheur | no limit | 398 | 100% | 78.9 | 22,300 ug/L |
| Benton | no limit | 281 | 100% | 162 | 130,000 ug/L |
| Lincoln | no limit | 225 | 100% | 2,600 | 440,000 ug/L |
| Tillamook | no limit | 188 | 99% | 1,850 | 1,200,000 ug/L |
| Yamhill | no limit | 367 | 99% | 606 | 310,000 ug/L |
| Gilliam | no limit | 82 | 99% | 56.9 | 88,500 ug/L |
| Marion | no limit | 832 | 99% | 1,300 | 670,000 ug/L |
| Union | no limit | 54 | 98% | 2,195 | 320,000 ug/L |
- Prineville CCD, Crook County100% detected of 39
- Dayton-Amity CCD, Yamhill County100% detected of 94
- South Umpqua CCD, Douglas County100% detected of 31
- Hubbard CCD, Marion County100% detected of 293
- Roseburg CCD, Douglas County100% detected of 112
- Sandy CCD, Clackamas County100% detected of 38
- Reedsport CCD, Douglas County100% detected of 30
- Sutherlin CCD, Douglas County100% detected of 34
- Myrtle Creek-Riddle CCD, Douglas County100% detected of 55
- Arlington CCD, Gilliam County100% detected of 81
- Ontario CCD, Malheur County100% detected of 125
- Malheur Junction CCD, Malheur County100% detected of 77
- Owyhee CCD, Malheur County100% detected of 46
- Dead Ox Flat CCD, Malheur County100% detected of 86
- Astoria CCD, Clatsop County100% detected of 293
- Florence CCD, Lane County100% detected of 41
- Pleasant Hill CCD, Lane County100% detected of 129
- Baker City CCD, Baker County100% detected of 32
- Northwest Josephine CCD, Josephine County100% detected of 87
- McMinnville CCD, Yamhill County100% detected of 161
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.