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Water Hardness in Montana Cities

Water hardness in Montana, characterized by the amount of dissolved minerals such as calcium and magnesium, can significantly differ among various cities across the state due to its varied geological landscapes. Situated in the Western U.S., Montana’s water hardness levels reflect the geological diversity within the state.

Across Montana, water hardness can range from moderately soft to very hard, depending on the geological makeup of the area and the source of the water supply. For example, regions with limestone bedrock, such as parts of central Montana and the northern Rocky Mountains, often have harder water due to the high mineral content. In contrast, areas with more sandstone or shale bedrock, such as the Yellowstone River Basin and parts of eastern Montana, may experience softer water.

The variation in water hardness throughout Montana influences not only the taste and aesthetics of the water but also the efficiency of soaps and detergents, plumbing maintenance, and the lifespan of appliances that utilize water. Given the state’s geological diversity, water hardness is not uniform, highlighting the need for localized water treatment solutions and ongoing monitoring of water quality.

In the provided data, the water hardness levels show substantial variations across different cities in Montana. Among the cities for which data is reported, the highest water hardness levels are recorded in Sidney and Shelby, with hardness levels of 515 ppm (30 gpg) and 498 ppm (29 gpg), respectively. Conversely, the city with the lowest recorded water hardness level is Hot Springs, reporting a hardness of 88 ppm (5 gpg).

CityHardness ppm (mg/L)Hardness gpgInformation SourceNotes
Billings1177Link
Missoula17510Link
Great Fallsn/an/aLink
Bozeman1046Link
Butte-Silver Bown/an/aLink
Helena1287Link
Kalispell20512Link
Belgraden/an/aLink
Anaconda-Deer Lodge County905Link“Moderately Hard” listed in CCR, used the median of the USGS standard range
Havren/an/aLink
Whitefishn/an/aLink
Miles Cityn/an/aLink
Livingstonn/an/aLink
Laureln/an/aLink
Sidney51530Link
Lewistownn/an/aLink
Columbia Falls25215Link
Polsonn/an/aLink
Hamiltonn/an/aLink
Glendiven/an/aLink
Dillonn/an/aLink
Hardinn/an/aLink
Glasgown/an/aLink
Shelby49829Link
Cut Bankn/an/aLink
Deer Lodgen/an/aLink
Libbyn/an/aLink
Wolf Pointn/an/aLink
Conradn/an/aLink
Red Lodgen/an/aLink
Ronann/an/aLink
Manhattann/an/aLink
Stevensvillen/an/aLink
Colstripn/an/aLink
Three Forksn/an/aLink
East Helenan/an/aLink
Townsendn/an/aLink
Columbusn/an/aLink
Maltan/an/aLink
Bakern/an/aLink
Roundupn/an/aLink
Choteaun/an/aLink
Big Timbern/an/aLink
Plentywoodn/an/aLink
Forsythn/an/aLink
Fort Bentonn/an/aLink
Eurekan/an/aLink
Thompson Fallsn/an/aLink
West Yellowstonen/an/aLink
Bouldern/an/aLink
Chinookn/an/aLink
Plainsn/an/aLink
Harlowtonn/an/aLink
White Sulphur Springsn/an/aLink
Whitehalln/an/aLink
Scobeyn/an/aLink
Browningn/an/aLink
Ennisn/an/aLink
Superiorn/an/aLink
Fairviewn/an/aLink
Philipsburgn/an/aLink
Chestern/an/aLink
Pinesdalen/an/aLink
Troyn/an/aLink
Darbyn/an/aLink
St. Ignatiusn/an/aLink
Poplarn/an/aLinkNo online CCR on MT state website. City doesn’t have its own website
Harlemn/an/aLink
Fairfieldn/an/aLink
Culbertsonn/an/aLink
Sheridann/an/aLink
Bridgern/an/aLink
Walkervillen/an/aLinkCity doesn’t have water dept, and it’s not on EPA or Montana website. Could get from Butte, but nothing definitive
Cascaden/an/aLink
Jolietn/an/aLink
Big Sandyn/an/aLink
Circlen/an/aLink
Hot Springs885Link
Terryn/an/aLink
Beltn/an/aLink
Albertonn/an/aLink
Valiern/an/aLink
Broadusn/an/aLink
Wibauxn/an/aLink
Lodge Grassn/an/aLink
Stanfordn/an/aLink
Frombergn/an/aLink
Ekalakan/an/aLink
Sunburstn/an/aLinkReport mentions they have a “hard water well” but doesn’t’ quantify
Jordann/an/aLink
Twin Bridgesn/an/aLink
Clyde Parkn/an/aLink
Nashuan/an/aLink
Duttonn/an/aLink
Drummondn/an/aLinkNo online CCR, also not on the mt.gov site
Hyshamn/an/aLink
Bainvillen/an/aLink
Medicine Laken/an/aLink
Fort Peckn/an/aLink
Ryegaten/an/aLink
Top 100 Montana cities by population and their reported water hardness
ppm = Parts Per Million
mg/L = Milligrams Per Liter
gpg = Grains Per Gallon

Hard water can cause issues such as mineral buildup in plumbing and appliances, reduce the efficacy of soaps and detergents, and affect the taste of the water. A tried and true solution is the use of a water softener. A water softener, like the ones from DROP, could be a worthwhile investment.

These devices work by replacing the calcium and magnesium ions that cause hardness with sodium ions, resulting in softer water. With innovative features, easy installation, and efficient operation, DROP smart water softeners provide a solution to hard water issues, extending the lifespan of appliances, improving water taste, enhancing soap effectiveness, reducing scale build-up, and increasing the overall water efficiency in your home.

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