Aquatell

South Dakota

The 5 hardness figures we’ve verified run from 12 to 22 grains per gallon, with a median of 14; 100% are hard or very hard.

How the 5 figures spread across the bands

  • Soft 0
  • Slightly hard 0
  • Moderately hard 0
  • Hard 0
  • Very hard 5
Hardness
14 gpg medianAverage 16 gpg (280 ppm), from 12 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
5 places5 listings as published
Disinfectant
0 of 3use 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.

5 places

On the scaleDisinfectantSourcesAsk Aqua
Aberdeen
No source linked
  • The page it came from links no primary source for this figure.
 22 gpg380 ppm, very hard Chlorine Disinfectant
Pierre
No source linked
  • The page it came from links no primary source for this figure.
 20 gpg345 ppm, very hard –
Sioux Falls
No source linked
  • The page it came from links no primary source for this figure.
 14 gpg240 ppm, very hard Chlorine Disinfectant
Vermillion
No source linked
  • The page it came from links no primary source for this figure.
 14 gpg239 ppm, very hard –
Rapid City
No source linked
  • The page it came from links no primary source for this figure.
 12 gpg207 ppm, very 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 South Dakota’s water

See them all