Montana

Water Hardness Summary 

 

City Water Hardness Data
Billings  123 PPM (mg/L) or 7 gpg
Missoula 175 PPM (mg/L) or 10 gpg
Great Falls 147 PPM (mg/L) or 9 gpg
Helena 25 PPM (mg/L) or 1 gpg
Glendive 110 PPM (mg/L) or 6 gpg
Butte 54 PPM (mg/L) or 3 gpg
Bozeman 57 PPM (mg/L) or 3 gpg
Cut Bank 72 PPM (mg/L) or 4 gpg
Kalispell 205 PPM (mg/L) or 12 gpg
 

PPM = Parts Per Million

mg/L = Milligrams Per Liter

gpg = Grains Per Gallon