Aquatell

Minnesota

The 63 hardness figures we’ve verified run from 3.0 to 32 grains per gallon, with a median of 17; 89% are hard or very hard.

How the 63 figures spread across the bands

  • Soft 0
  • Slightly hard 1
  • Moderately hard 6
  • Hard 4
  • Very hard 52
Hardness
17 gpg medianAverage 16 gpg (268 ppm), from 3.0 to 32. 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
63 places63 listings as published
Disinfectant
5 of 7use chloramine; 2 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.

63 places

On the scaleDisinfectantSourcesAsk Aqua
Brooklyn Park
No source linked
  • The page it came from links no primary source for this figure.
 32 gpg548 ppm, very hard –
Maple Grove
No source linked
  • The page it came from links no primary source for this figure.
 27 gpg454 ppm, very hard –
Plymouth
No source linked
  • The page it came from links no primary source for this figure.
 24 gpg411 ppm, very hard Chloramine Disinfectant
Sartell
No source linked
  • The page it came from links no primary source for this figure.
 23 gpg393 ppm, very hard –
Detroit Lakes
No source linked
  • The page it came from links no primary source for this figure.
 22 gpg377 ppm, very hard –
Rogers
No source linked
  • The page it came from links no primary source for this figure.
 22 gpg376 ppm, very hard –
Buffalo
No source linked
  • The page it came from links no primary source for this figure.
 21 gpg357 ppm, very hard –
Circle Pines
No source linked
  • The page it came from links no primary source for this figure.
 21 gpg365 ppm, very hard –
Eden Valley
 21 gpg359 ppm, very hard – Hardness
Hopkins
No source linked
  • The page it came from links no primary source for this figure.
 21 gpg352 ppm, very hard –
Watkins
 21 gpg359 ppm, very hard – Hardness
Becker
No source linked
  • The page it came from links no primary source for this figure.
 20 gpg340 ppm, very hard –
Shakopee
No source linked
  • The page it came from links no primary source for this figure.
 20 gpg333 ppm, very hard –
Blaine
No source linked
  • The page it came from links no primary source for this figure.
 20 gpg334 ppm, very hard –
Eagan
No source linked
  • The page it came from links no primary source for this figure.
 19 gpg328 ppm, very hard Chloramine Disinfectant
Cloquet
No source linked
  • The page it came from links no primary source for this figure.
 19 gpg322 ppm, very hard –
East Grand Forks
No source linked
  • The page it came from links no primary source for this figure.
 19 gpg327 ppm, very hard –
Prior Lake
No source linked
  • The page it came from links no primary source for this figure.
 19 gpg317 ppm, very hard –
Red Wing
No source linked
  • The page it came from links no primary source for this figure.
 19 gpg315 ppm, very hard –
Savage
No source linked
  • The page it came from links no primary source for this figure.
 19 gpg314 ppm, very hard –
Worthington
No source linked
  • The page it came from links no primary source for this figure.
 19 gpg314 ppm, very hard –
Zimmerman
No source linked
  • The page it came from links no primary source for this figure.
 19 gpg322 ppm, very hard –
Edina
No source linked
  • The page it came from links no primary source for this figure.
 19 gpg317 ppm, very hard –
Lakeville
No source linked
  • The page it came from links no primary source for this figure.
 18 gpg308 ppm, very hard –
Big Lake
No source linked
  • The page it came from links no primary source for this figure.
 18 gpg311 ppm, very hard –
Burnsville
No source linked
  • The page it came from links no primary source for this figure.
 18 gpg310 ppm, very hard –
Cottage Grove
No source linked
  • The page it came from links no primary source for this figure.
 18 gpg301 ppm, very hard –
Excelsior
No source linked
  • The page it came from links no primary source for this figure.
 18 gpg301 ppm, very hard –
Minnetonka
No source linked
  • The page it came from links no primary source for this figure.
 18 gpg310 ppm, very hard –
Apple Valley
No source linked
  • The page it came from links no primary source for this figure.
 17 gpg291 ppm, very hard –
Bemidji
No source linked
  • The page it came from links no primary source for this figure.
 17 gpg287 ppm, very hard –
Chaska
No source linked
  • The page it came from links no primary source for this figure.
 17 gpg296 ppm, very hard –
Inver Grove Heights
No source linked
  • The page it came from links no primary source for this figure.
 17 gpg278 ppm, very hard –
Istani
No source linked
  • The page it came from links no primary source for this figure.
 17 gpg283 ppm, very hard –
Hastings
No source linked
  • The page it came from links no primary source for this figure.
 16 gpg278 ppm, very hard –
Rosemount
No source linked
  • The page it came from links no primary source for this figure.
 16 gpg278 ppm, very hard –
Anoka
No source linked
  • The page it came from links no primary source for this figure.
 15 gpg255 ppm, very hard –
Willmar
No source linked
  • The page it came from links no primary source for this figure.
 15 gpg269 ppm, very hard –
Brainerd
No source linked
  • The page it came from links no primary source for this figure.
 14 gpg244 ppm, very hard –
Moorehead
No source linked
  • The page it came from links no primary source for this figure.
 14 gpg233 ppm, very hard –
Owatoona
No source linked
  • The page it came from links no primary source for this figure.
 14 gpg241 ppm, very hard –
Stillwater
No source linked
  • The page it came from links no primary source for this figure.
 14 gpg245 ppm, very hard –
Windom
No source linked
  • The page it came from links no primary source for this figure.
 14 gpg240 ppm, very hard –
Woodbury
No source linked
  • The page it came from links no primary source for this figure.
 14 gpg231 ppm, very hard –
Fergus Falls
No source linked
  • The page it came from links no primary source for this figure.
 13 gpg226 ppm, very hard –
Forest Lake
No source linked
  • The page it came from links no primary source for this figure.
 13 gpg222 ppm, very hard –
Winona
No source linked
  • The page it came from links no primary source for this figure.
 13 gpg220 ppm, very hard –
Osseso
No source linked
  • The page it came from links no primary source for this figure.
 12 gpg210 ppm, very hard –
Big Falls
No source linked
  • The page it came from links no primary source for this figure.
 11 gpg190 ppm, very hard –
Farmington
No source linked
  • The page it came from links no primary source for this figure.
 11 gpg196 ppm, very hard –
Little Falls
No source linked
  • The page it came from links no primary source for this figure.
 11 gpg196 ppm, very hard –
Northfield
No source linked
  • The page it came from links no primary source for this figure.
 11 gpg189 ppm, very hard –
Andover
No source linked
  • The page it came from links no primary source for this figure.
 10 gpg165 ppm, hard –
Fairbault
No source linked
  • The page it came from links no primary source for this figure.
 10 gpg165 ppm, hard –
Elk River
No source linked
  • The page it came from links no primary source for this figure.
 8.0 gpg129 ppm, hard –
St. Cloud
No source linked
  • The page it came from links no primary source for this figure.
 7.9 gpg135 ppm, hard –
Grand Rapids
No source linked
  • The page it came from links no primary source for this figure.
 6.0 gpg98 ppm, moderately hard –
Rochester
No source linked
  • The page it came from links no primary source for this figure.
 5.9 gpg101 ppm, moderately hard Chlorine Disinfectant
Bloomington
No source linked
  • The page it came from links no primary source for this figure.
 5.3 gpg90 ppm, moderately hard Chloramine Disinfectant
Eden Prairie
No source linked
  • The page it came from links no primary source for this figure.
 5.3 gpg90 ppm, moderately hard –
St. Paul
No source linked
  • The page it came from links no primary source for this figure.
 5.3 gpg90 ppm, moderately hard Chloramine Disinfectant
Minneapolis
No source linked
  • The page it came from links no primary source for this figure.
 5.0 gpg85 ppm, moderately hard Chloramine Disinfectant
Duluth
No source linked
  • The page it came from links no primary source for this figure.
 3.0 gpg45 ppm, slightly hard 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.

Water softenersSizing a softener

Chlorine or chloramine

Standard carbon removes chlorine’s taste and smell. Chloramine lasts longer in the pipes and needs catalytic carbon to remove it.

Carbon and chloramine filters

Not sure what you need?

Aqua knows these figures and Aquatell’s treatment charts, and can size a system for your home.

Softeners for Minnesota’s water

See them all