Aquatell

Wisconsin

The 17 hardness figures we’ve verified run from 5.0 to 22 grains per gallon, with a median of 9.1; 88% are hard or very hard.

How the 17 figures spread across the bands

  • Soft 0
  • Slightly hard 0
  • Moderately hard 2
  • Hard 9
  • Very hard 6
Hardness
9.1 gpg medianAverage 12 gpg (197 ppm), from 5.0 to 22. 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
17 places17 listings as published
Disinfectant
1 of 5use chloramine; 4 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.

17 places

On the scaleDisinfectantSourcesAsk Aqua
Jackson
No source linked
  • The page it came from links no primary source for this figure.
 22 gpg376 ppm, very hard –
Janesville
No source linked
  • The page it came from links no primary source for this figure.
 21 gpg350 ppm, very hard –
Madison
2 notes
  • The page it came from links no primary source for this figure.
  • Another Aquatell page gives chloramine; this table's figure is kept.
 19 gpg325 ppm, very hard Chlorine Disinfectant
Whitewater
No source linked
  • The page it came from links no primary source for this figure.
 18 gpg307 ppm, very hard –
La Crosse
No source linked
  • The page it came from links no primary source for this figure.
 17 gpg282 ppm, very hard –
Elkhorn
No source linked
  • The page it came from links no primary source for this figure.
 12 gpg198 ppm, very hard –
Appleton
No source linked
  • The page it came from links no primary source for this figure.
 10 gpg175 ppm, hard –
Eau Claire
No source linked
  • The page it came from links no primary source for this figure.
 10 gpg177 ppm, hard –
Sheboygan
No source linked
  • The page it came from links no primary source for this figure.
 9.1 gpg155 ppm, hard –
Kenosha
No source linked
  • The page it came from links no primary source for this figure.
 8.2 gpg140 ppm, hard Chlorine Disinfectant
Milwaukee
No source linked
  • The page it came from links no primary source for this figure.
 8.1 gpg137 ppm, hard Chloramine Disinfectant
Green Bay
No source linked
  • The page it came from links no primary source for this figure.
 8.0 gpg130 ppm, hard Chlorine Disinfectant
Wauwatosa
No source linked
  • The page it came from links no primary source for this figure.
 7.9 gpg135 ppm, hard –
Racine
No source linked
  • The page it came from links no primary source for this figure.
 7.7 gpg131 ppm, hard Chlorine Disinfectant
West Allis
No source linked
  • The page it came from links no primary source for this figure.
 7.7 gpg130 ppm, hard –
Oshkosh
No source linked
  • The page it came from links no primary source for this figure.
 6.0 gpg101 ppm, moderately hard –
Wausau
No source linked
  • The page it came from links no primary source for this figure.
 5.0 gpg90 ppm, moderately hard –

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 Wisconsin’s water

See them all