Chloride in Oregon well water
In Oregon, chloride was detected in 100% of 18,646 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 Oregon 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 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 |
|---|---|---|---|---|---|
| Baker | no limit | 40 | 100% | 7.32 | 260 mg/L |
| Josephine | no limit | 481 | 100% | 5.1 | 6,200 mg/L |
| Benton | no limit | 736 | 100% | 10.3 | 5,300 mg/L |
| Columbia | no limit | 111 | 100% | 70 | 660 mg/L |
| Clackamas | no limit | 664 | 100% | 6 | 1,896 mg/L |
| Crook | no limit | 71 | 100% | 7.5 | 59 mg/L |
| Curry | no limit | 85 | 100% | 18 | 77 mg/L |
| Clatsop | no limit | 529 | 100% | 17 | 720 mg/L |
| Douglas | no limit | 417 | 100% | 26 | 15,900 mg/L |
| Gilliam | no limit | 136 | 100% | 11 | 330 mg/L |
| Coos | no limit | 166 | 100% | 15 | 4,300 mg/L |
| Hood River | no limit | 64 | 100% | 2 | 6 mg/L |
| Jackson | no limit | 507 | 100% | 19 | 2,020 mg/L |
| Jefferson | no limit | 38 | 100% | 8.12 | 26 mg/L |
| Klamath | no limit | 293 | 100% | 3.6 | 550 mg/L |
- Port Orford CCD, Curry County100% detected of 56
- Klamath Falls CCD, Klamath County100% detected of 119
- Chiloquin CCD, Klamath County100% detected of 49
- Astoria CCD, Clatsop County100% detected of 482
- Cave Junction CCD, Josephine County100% detected of 68
- Northwest Josephine CCD, Josephine County100% detected of 160
- Grants Pass CCD, Josephine County100% detected of 223
- Dufur CCD, Wasco County100% detected of 55
- The Dalles CCD, Wasco County100% detected of 94
- Crescent Lake CCD, Klamath County100% detected of 93
- Bend CCD, Deschutes County100% detected of 74
- Gresham CCD, Multnomah County100% detected of 291
- Portland East CCD, Multnomah County100% detected of 1,494
- Arlington CCD, Gilliam County100% detected of 135
- Vale CCD, Malheur County100% detected of 177
- Ontario CCD, Malheur County100% detected of 394
- Malheur Junction CCD, Malheur County100% detected of 205
- Owyhee CCD, Malheur County100% detected of 87
- Nyssa CCD, Malheur County100% detected of 77
- Dead Ox Flat CCD, Malheur County100% detected of 234
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.