
Oregon
The 13 hardness figures we’ve verified run from 0.8 to 3.1 grains per gallon, with a median of 2.0; 0% are hard or very hard.
How the 13 figures spread across the bands
- Soft 1
- Slightly hard 12
- Moderately hard 0
- Hard 0
- Very hard 0
- Hardness
- 2.0 gpg medianAverage 1.9 gpg (32 ppm), from 0.8 to 3.1. Each published figure counts once in the average, median and spread; a figure published as a range is shown as its range and isn't averaged.
- Coverage
- 13 places13 listings as published
- Disinfectant
- 2 of 5use chloramine; 3 use chlorine
Every place we have
Sources are each city’s water quality report or its utility. Gather the listings up by place or by the water system that serves them, or see every listing as published; open a group to see what’s in it.
13 places
| On the scale | Disinfectant | Sources | Ask Aqua | ||
|---|---|---|---|---|---|
Springfield No source linked
|
3.1 gpg53 ppm, slightly hard | SoftSlightly hardModerately hardHardVery hardSlightly hard 3.1 gpg |
– | ||
Portland 2 notes
|
2.5 gpg42 ppm, slightly hard | SoftSlightly hardModerately hardHardVery hardSlightly hard 2.5 gpg |
Chloramine | Disinfectant | |
Tigard No source linked
|
2.5 gpg42 ppm, slightly hard | SoftSlightly hardModerately hardHardVery hardSlightly hard 2.5 gpg |
– | ||
Astoria No source linked
|
2.0 gpg28 ppm, slightly hard | SoftSlightly hardModerately hardHardVery hardSlightly hard 2.0 gpg |
– | ||
Gresham No source linked
|
2.0 gpg32 ppm, slightly hard | SoftSlightly hardModerately hardHardVery hardSlightly hard 2.0 gpg |
Chloramine | Disinfectant | |
Medford No source linked
|
2.0 gpg33 ppm, slightly hard | SoftSlightly hardModerately hardHardVery hardSlightly hard 2.0 gpg |
– | ||
Roseburg No source linked
|
2.0 gpg32 ppm, slightly hard | SoftSlightly hardModerately hardHardVery hardSlightly hard 2.0 gpg |
– | ||
Corvallis No source linked
|
1.9 gpg31 ppm, slightly hard | SoftSlightly hardModerately hardHardVery hardSlightly hard 1.9 gpg |
– | ||
Beaverton No source linked
|
1.7 gpg28 ppm, slightly hard | SoftSlightly hardModerately hardHardVery hardSlightly hard 1.7 gpg |
– | ||
Hillsboro No source linked
|
1.7 gpg28 ppm, slightly hard | SoftSlightly hardModerately hardHardVery hardSlightly hard 1.7 gpg |
Chlorine | Disinfectant | |
Bend No source linked
|
1.3 gpg21 ppm, slightly hard | SoftSlightly hardModerately hardHardVery hardSlightly hard 1.3 gpg |
– | ||
Eugene No source linked
|
1.1 gpg18 ppm, slightly hard | SoftSlightly hardModerately hardHardVery hardSlightly hard 1.1 gpg |
Chlorine | Disinfectant | |
Salem No source linked
|
0.8 gpg12 ppm, soft | SoftSlightly hardModerately hardHardVery hardSoft 0.8 gpg |
Chlorine | Disinfectant |
Missing your city? Aquatell researches cities on request from the utility’s own reports, usually within a week. A note on a figure says what we found when we checked it: units that didn’t agree, another page with a different figure, a range.
What to do about it
Hard water
Above about 3.5 grains per gallon, scale builds in water heaters, fixtures and appliances. A softener sized for your hardness and household removes it for the whole house.
Chlorine or chloramine
Standard carbon removes chlorine’s taste and smell. Chloramine lasts longer in the pipes and needs catalytic carbon to remove it.
Not sure what you need?
Aqua knows these figures and Aquatell’s treatment charts, and can size a system for your home.


