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Water Hardness in South Carolina Cities

Water hardness in South Carolina, 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 on the East Coast of the U.S., South Carolina’s water hardness levels reflect the geological diversity within the state.

Across South Carolina, 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, coastal areas often have softer water due to the influence of river basins and the Atlantic Coastal Plain’s sedimentary deposits, while regions in the Piedmont and Blue Ridge areas may experience harder water due to the higher mineral content from metamorphic and igneous rock formations.

The variation in water hardness throughout South Carolina 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 considerable 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 South Carolina. Among the cities for which data is reported, the highest water hardness level is recorded in Hanahan with a hardness of 56.0 ppm, 3.3 gpg. Conversely, the city with the lowest recorded water hardness level is Pendleton, reporting a hardness of 12.5 ppm, 0.7 gpg.

CityHardness ppm (mg/L)Hardness gpgInformation SourceNotes
Charleston54.03.2Link
Columbia36.02.1Link
North Charleston54.03.2Link
Mount Pleasantn/an/aLink
Rock Hill29.01.7Link
Greenvillen/an/aLink
Summerville23.01.3Link
Goose Creek22.01.3Link
Sumtern/an/aLink
Florencen/an/aLink
Greer11.00.6Link
Spartanburgn/an/aLink
Hilton Head Islandn/an/aLink
Myrtle Beachn/an/aLink
Blufftonn/an/aLink
Aikenn/an/aLink
Anderson13.70.8Link
Fort Milln/an/aLink
Mauldinn/an/aLinkCovered by Greenville.
Simpsonvillen/an/aLinkPurchases from Greenville per EPA CCR search.
North Augustan/an/aLink
Lexingtonn/an/aLink
Easleyn/an/aLink
Conwayn/an/aLink
Greenwood38.02.2LinkThey treat water for hardness.
Hanahan56.03.3Link
North Myrtle Beachn/an/aLink
Clemson15.50.9Link
West Columbian/an/aLink
Caycen/an/aLink
Moncks Corner23.01.3Link
Tega Cay24.51.4Link
Port Royaln/an/aLink
Beaufortn/an/aLink
Orangeburgn/an/aLink
Gaffneyn/an/aLink
Irmon/an/aLinkNeither Hopkins nor Pond system reports list hardness.
James Island54.03.2LinkCovered by Charleston.
Fountain Innn/an/aLinkCovered by Greenville.
Forest Acres36.02.1LinkCovered by Columbia.
Newberryn/an/aLink
Laurensn/an/aLinkPurchases from Greenville and Clinton.
Senecan/an/aLink
Hardeevillen/an/aLink
Yorkn/an/aLink
Lancastern/an/aLink
Georgetownn/an/aLink
Unionn/an/aLink
Camdenn/an/aLink
Travelers Restn/an/aLink
Clintonn/an/aLink
Hartsvillen/an/aLink
Bennettsvillen/an/aLink
Clovern/an/aLink
Lyman14.90.9Link
Marionn/an/aLink
Dillonn/an/aLink
Darlingtonn/an/aLink
Lake Cityn/an/aLink
Walterboron/an/aLink
Hollywood54.03.2LinkUses Charleston Water as utility.
Blythewood36.02.1LinkUses Columbia and Winnsboro water, Winnsboro cuts off Blythewood during droughts so used Columbia’s number.
Centraln/an/aLink
Batesburg-Leesvillen/an/aLink
Chestern/an/aLink
Cherawn/an/aLink
Abbevillen/an/aLink
Barnwelln/an/aLink
Beltonn/an/aLink
Isle of Palmsn/an/aLink
Woodruffn/an/aLink
Surfside Beachn/an/aLink
Duncan14.90.9Link
Williamston13.70.8LinkPurchases from Anderson.
Walhallan/an/aLink
Mullinsn/an/aLink
Manningn/an/aLink
Honea Pathn/an/aLink
Ridgelandn/an/aLink
Pendleton12.50.7Link
Wellford14.90.9Link
Pickensn/an/aLink
Libertyn/an/aLink
Kingstreen/an/aLink
Winnsboron/an/aLink
Burnettownn/an/aLinkDoesn’t appear to have online CCR. Only 430 customers.
Denmarkn/an/aLink
Saludan/an/aLink
Inmann/an/aLink
Bambergn/an/aLink
Bishopvillen/an/aLink
Willistonn/an/aLink
Hamptonn/an/aLink
Springdale36.02.1LinkCovered under Columbia.
Allendalen/an/aLink
Lorisn/an/aLinkGets from Myrtle Beach.
Ravenel54.03.2LinkCovered by Charleston.
Andrewsn/an/aLink
Landrumn/an/aLink
Pagelandn/an/aLink
Top 100 South Carolina 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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