Aquatell

Ohio

The 35 hardness figures we’ve verified run from 4.0 to 25 grains per gallon, with a median of 7.3; 89% are hard or very hard.

How the 35 figures spread across the bands

  • Soft 0
  • Slightly hard 0
  • Moderately hard 4
  • Hard 24
  • Very hard 7
Hardness
7.3 gpg medianAverage 11 gpg (181 ppm), from 4.0 to 25. 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
35 places35 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.

35 places

On the scaleDisinfectantSourcesAsk Aqua
Canton
No source linked
  • The page it came from links no primary source for this figure.
 25 gpg426 ppm, very hard –
Springboro
No source linked
  • The page it came from links no primary source for this figure.
 24 gpg410 ppm, very hard –
Cedarville
No source linked
  • The page it came from links no primary source for this figure.
 23 gpg400 ppm, very hard –
Clifton
No source linked
  • The page it came from links no primary source for this figure.
 23 gpg400 ppm, very hard –
Xenia
No source linked
  • The page it came from links no primary source for this figure.
 23 gpg400 ppm, very hard –
Beavercreek
No source linked
  • The page it came from links no primary source for this figure.
 23 gpg391 ppm, very hard –
Loveland
No source linked
  • The page it came from links no primary source for this figure.
 20 gpg342 ppm, very hard –
Cuyahoga Falls
No source linked
  • The page it came from links no primary source for this figure.
 10 gpg170 ppm, hard –
Mason
No source linked
  • The page it came from links no primary source for this figure.
 10 gpg171 ppm, hard –
Dayton
No source linked
  • The page it came from links no primary source for this figure.
 9.1 gpg155 ppm, hard –
Kettering
No source linked
  • The page it came from links no primary source for this figure.
 9.1 gpg155 ppm, hard –
Springfield
No source linked
  • The page it came from links no primary source for this figure.
 8.9 gpg151 ppm, hard –
Hamilton
No source linked
  • The page it came from links no primary source for this figure.
 8.6 gpg146 ppm, hard –
Chillicothe
No source linked
  • The page it came from links no primary source for this figure.
 8.0 gpg140 ppm, hard –
Delaware
No source linked
  • The page it came from links no primary source for this figure.
 8.0 gpg140 ppm, hard –
Fairborn
 8.0 gpg140 ppm, hard – Hardness
West Chester
No source linked
  • The page it came from links no primary source for this figure.
 7.7 gpg131 ppm, hard –
Cincinnati
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.
 7.3 gpg125 ppm, hard Chlorine Disinfectant
Colerain
No source linked
  • The page it came from links no primary source for this figure.
 7.3 gpg125 ppm, hard –
Green
No source linked
  • The page it came from links no primary source for this figure.
 7.3 gpg125 ppm, hard –
Westerville
No source linked
  • The page it came from links no primary source for this figure.
 7.1 gpg122 ppm, hard –
Cleveland
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.
 7.0 gpg125 ppm, hard Chlorine Disinfectant
Elyria
No source linked
  • The page it came from links no primary source for this figure.
 7.0 gpg120 ppm, hard –
Grove City
No source linked
  • The page it came from links no primary source for this figure.
 7.0 gpg120 ppm, hard –
Hilliard
No source linked
  • The page it came from links no primary source for this figure.
 7.0 gpg121 ppm, hard –
Lancaster
No source linked
  • The page it came from links no primary source for this figure.
 7.0 gpg128 ppm, hard –
Mentor
No source linked
  • The page it came from links no primary source for this figure.
 7.0 gpg122 ppm, hard –
Middletown
No source linked
  • The page it came from links no primary source for this figure.
 7.0 gpg131 ppm, hard –
Newark
No source linked
  • The page it came from links no primary source for this figure.
 7.0 gpg118 ppm, hard –
Painesville
No source linked
  • The page it came from links no primary source for this figure.
 7.0 gpg122 ppm, hard –
Reynoldsburg
No source linked
  • The page it came from links no primary source for this figure.
 7.0 gpg120 ppm, hard –
Akron
No source linked
  • The page it came from links no primary source for this figure.
 6.3 gpg107 ppm, moderately hard Chloramine Disinfectant
Columbus
No source linked
  • The page it came from links no primary source for this figure.
 5.9 gpg100 ppm, moderately hard Chlorine Disinfectant
Dublin
No source linked
  • The page it came from links no primary source for this figure.
 5.9 gpg100 ppm, moderately hard –
Toledo
No source linked
  • The page it came from links no primary source for this figure.
 4.0 gpg74 ppm, moderately 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 Ohio’s water

See them all