Water hardness in Maine

Typical Maine tap water
16mg/L
0.9gpg
Soft

Population-weighted middle value across 23 Maine cities in the dataset

People with hard or very hard water
5%
Hardest
Augusta 136
Softest
Bangor 6

We have hardness numbers for 23 Maine cities. Each city page adds the water system's EPA violation record and a softener size for a typical household.

Every Maine city on the hardness scale
SoftModerately hardHardVery hard060120180240300360+Portland: 8 mg/LLewiston: 16 mg/LBangor: 6 mg/LSouth Portland: 8 mg/LAuburn: 89 mg/LSanford: 40 mg/LBiddeford: 71 mg/LSaco: 14 mg/LAugusta: 136 mg/LWaterville: 102 mg/LBrunswick: 14 mg/LOrono: 44 mg/LBrewer: 6 mg/LEllsworth: 74 mg/LBath: 9 mg/LOld: 68 mg/LGorham: 8 mg/LTopsham: 39 mg/LYarmouth: 76 mg/LGardiner: 96 mg/LKennebunk: 59 mg/LWinslow: 28 mg/LKittery: 21 mg/LPortlandAuburnSanfordSoftMod.HardVery hard060120180240300360+Portland: 8 mg/LLewiston: 16 mg/LBangor: 6 mg/LSouth Portland: 8 mg/LAuburn: 89 mg/LSanford: 40 mg/LBiddeford: 71 mg/LSaco: 14 mg/LAugusta: 136 mg/LWaterville: 102 mg/LBrunswick: 14 mg/LOrono: 44 mg/LBrewer: 6 mg/LEllsworth: 74 mg/LBath: 9 mg/LOld: 68 mg/LGorham: 8 mg/LTopsham: 39 mg/LYarmouth: 76 mg/LGardiner: 96 mg/LKennebunk: 59 mg/LWinslow: 28 mg/LKittery: 21 mg/LPortland

Dot size follows population. Tap a dot for the city page.

15Soft
7Moderately hard
1Hard
0Very hard

Hardest water in Maine

  1. Augusta136
  2. Waterville102
  3. Gardiner96
  4. Auburn89
  5. Yarmouth76
  6. Ellsworth74
  7. Biddeford71
  8. Old68

Softest water in Maine

  1. Brewer6
  2. Bangor6
  3. Gorham8
  4. South Portland8
  5. Portland8
  6. Bath9
  7. Brunswick14
  8. Saco14

All cities in Maine

Citymg/LgpgClassDataEPA health violations
Portland80.5SoftUtility report0
Lewiston160.9SoftUtility report0
Bangor60.4SoftUtility report0
South Portland80.5SoftUtility report0
Auburn895.2Moderately hardUtility report0
Sanford402.4SoftUtility report0
Biddeford714.2Moderately hardUtility report0
Saco140.8SoftUtility report1
Augusta1368.0HardUtility report0
Waterville1026.0Moderately hardUtility report0
Brunswick140.8SoftUtility report0
Orono442.6SoftUtility report0
Brewer60.4SoftUtility report0
Ellsworth744.3Moderately hardUtility report5
Bath90.5SoftUtility report0
Old684.0Moderately hardUtility report0
Gorham80.5SoftUtility report0
Topsham392.3SoftUtility report0
Yarmouth764.4Moderately hardUtility report0
Gardiner965.6Moderately hardUtility report0
Kennebunk593.5SoftUtility report0
Winslow281.7SoftUtility report0
Kittery211.2SoftUtility report0

Questions

Is Maine water hard?

The typical Maine resident gets about 16 mg/L (0.9 gpg), which is soft. About 5% of people in the cities we track have hard or very hard water.

Which city in Maine has the hardest water?

Among 23 cities with pages here, Augusta is highest at 136 mg/L.

Which city in Maine has the softest water?

Bangor, at 6 mg/L.

Other states

Hardness data: TapWaterData US Water Hardness, CC BY 4.0. Population: US Census Bureau. Violations: EPA ECHO. How we use them.