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Water Hardness in Louisiana Cities

Water hardness in Louisiana, defined by the concentration of dissolved minerals such as calcium and magnesium, varies considerably across the state due to its diverse geological features. Located in the Southern U.S., Louisiana’s water hardness levels are influenced by the state’s unique geological formations.

Across Louisiana, water hardness can range from moderately soft to very hard. For instance, areas with limestone or sedimentary rock formations, particularly in parts of the northern and central regions of the state, may experience harder water due to higher mineral content. In contrast, the southern coastal areas, where the geology includes more sediment deposits from the Gulf of Mexico, often have softer water.

This variation in water hardness across Louisiana impacts not only the taste and appearance of the water but also the effectiveness of soaps and detergents, the maintenance of plumbing systems, and the longevity of water-using appliances. Given the state’s geological diversity, water hardness is not consistent statewide, underscoring the importance of localized water treatment solutions and continuous monitoring of water quality.

In the provided data, the water hardness levels show substantial variations across different cities in Louisiana. Among the cities for which data is reported, the highest water hardness levels are recorded in Kenner and Houma, with hardness levels of 142 ppm (8.3 gpg) and 98 ppm (5.7 gpg), respectively.

CityHardness ppm (mg/L)Hardness gpgInformation SourceNotes
New Orleansn/an/aLink
Baton Rougen/an/aLinkSays it has “a natural low hardness concentration” but doesn’t quantify. Low hardness would be 0-60 according to USGS.
Shreveportn/an/aLink
Lafayetten/an/aLink
Lake Charlesn/an/aLink
Kenner142.08.3Link
Bossier Cityn/an/aLink
Monroen/an/aLink
Alexandrian/an/aLink
Houma98.05.7Link
Centraln/an/aLinkCovered by Baton Rouge
Slidelln/an/aLink
New Iberian/an/aLink
Hammondn/an/aLink
Rustonn/an/aLink
Sulphurn/an/aLink
Zacharyn/an/aLinkEast Baton Rouge
Youngsvillen/an/aLink
Natchitochesn/an/aLink
Gretnan/an/aLink
Thibodaux98.05.7LinkJoint with Houma
Opelousasn/an/aLink
Broussardn/an/aLink
Pinevillen/an/aLink
Gonzalesn/an/aLink
Mandevillen/an/aLink
Carencron/an/aLink
West Monroen/an/aLink
Bakern/an/aLinkEast Baton Rouge
Covingtonn/an/aLink
Crowleyn/an/aLinkReport says they add lime to reduce hardness but don’t quantify
Mindenn/an/aLink
Abbevillen/an/aLink
Morgan Cityn/an/aLink
Bogalusan/an/aLink
DeRiddern/an/aLink
Jenningsn/an/aLink
Denham Springsn/an/aLink
Eunicen/an/aLink
Bastropn/an/aLink
Scottn/an/aLink
Harahann/an/aLinkCovered by New Orleans
Westwegon/an/aLink
Ponchatoulan/an/aLink
Addisn/an/aLink
Breaux Bridgen/an/aLink
Raynen/an/aLink
Donaldsonvillen/an/aLink
St. Gabrieln/an/aLink
Oakdalen/an/aLink
Walkern/an/aLink
Franklinn/an/aLink
Ville Platten/an/aLink
Plaqueminen/an/aLink
Tallulahn/an/aLink
Pattersonn/an/aLink
Leesvillen/an/aLink
Gramblingn/an/aLink
St. Martinvillen/an/aLink
Port Allenn/an/aLink
Marksvillen/an/aLink
Winnsboron/an/aLink
Westlaken/an/aLink
Jeaneretten/an/aLink
Mansfieldn/an/aLink
Berwickn/an/aLink
Springhilln/an/aLink
Haughtonn/an/aLink
New Roadsn/an/aLink
Kaplann/an/aLink
Jenan/an/aLink
Amite Cityn/an/aLink
Church Pointn/an/aLink
Jonesboron/an/aLink
Jacksonn/an/aLink
Winnfieldn/an/aLink
Vidalian/an/aLink
Balln/an/aLinkPart of Pineville
Richwoodn/an/aLink
Franklintonn/an/aLink
Blanchardn/an/aLink
Welshn/an/aLink
Farmervillen/an/aLink
Rayvillen/an/aLink
Bunkien/an/aLink
Lake Providencen/an/aLink
Iowan/an/aLink
Vintonn/an/aLink
Greenwoodn/an/aLink
Sunsetn/an/aLink
Ferridayn/an/aLink
Viviann/an/aLink
Lutchern/an/aLink
DeQuincyn/an/aLinkReport says they add lime to reduce hardness but don’t quantify
Mamoun/an/aLink
Mauricen/an/aLink
Gramercyn/an/aLink
Abita Springsn/an/aLink
Pearl Rivern/an/aLink
Homern/an/aLink
Top 100 Louisiana 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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