Water Hardness in Maryland Cities

Water Hardness in Maryland Cities

Water hardness in Maryland, defined by the concentration of dissolved minerals such as calcium and magnesium, varies across the state due to its diverse geological features. Located in the Mid-Atlantic region, Maryland’s water hardness levels are influenced by the state’s unique geological formations.

In Maryland, water hardness can range from moderately soft to very hard. For example, areas with limestone or sedimentary rock formations, particularly in parts of the western region and the Piedmont Plateau, may experience harder water due to higher mineral content. In contrast, the eastern coastal areas, including the Eastern Shore, where the geology includes more sediment deposits and fewer mineral-rich formations, often have softer water.

This variation in water hardness across Maryland 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, highlighting 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 Maryland. Among the cities for which data is reported, the highest water hardness levels are recorded in Rising Sun and Elkton, with hardness levels of 125 ppm (7.3 gpg) and 113 ppm (6.6 gpg), respectively.

City Hardness ppm (mg/L) Hardness gpg Information Source Notes
Baltimore n/a n/a Link Mentions they treat to reduce hardness but don’t quantify
Frederick n/a n/a Link
Gaithersburg n/a n/a Link Covered by WSSC
Rockville n/a n/a Link
Bowie n/a n/a Link
Hagerstown n/a n/a Link
Annapolis n/a n/a Link
College Park n/a n/a Link Covered by WSSC
Salisbury n/a n/a Link
Laurel n/a n/a Link
Greenbelt n/a n/a Link Covered by WSSC
Hyattsville n/a n/a Link Covered by WSSC
Westminster n/a n/a Link
Cumberland n/a n/a Link
Aberdeen n/a n/a Link
Takoma Park n/a n/a Link Covered by WSSC
Easton 50.0 2.9 Link
Elkton 113.0 6.6 Link
Havre de Grace 37.0 2.2 Link
New Carrollton n/a n/a Link Covered by WSSC
Cambridge n/a n/a Link
La Plata n/a n/a Link
Bel Air 73.0 4.3 Link
Mount Airy n/a n/a Link
Bladensburg n/a n/a Link Covered by WSSC
Brunswick n/a n/a Link
Mount Rainier n/a n/a Link Covered by WSSC
Taneytown n/a n/a Link Mentions hardness, doesn’t quantify
Riverdale Park n/a n/a Link Covered by WSSC
Frostburg n/a n/a Link
Ocean City n/a n/a Link
Thurmont n/a n/a Link
Walkersville n/a n/a Link
Chesapeake Beach n/a n/a Link
Hampstead n/a n/a Link
Glenarden n/a n/a Link Covered by WSSC
Cheverly n/a n/a Link Covered by WSSC
Fruitland n/a n/a Link
District Heights n/a n/a Link Covered by WSSC
Poolesville n/a n/a Link
Chestertown n/a n/a Link
Manchester n/a n/a Link
Berlin n/a n/a Link
Middletown n/a n/a Link
Denton n/a n/a Link
Leonardtown n/a n/a Link
Centreville n/a n/a Link
Delmar n/a n/a Link
Perryville n/a n/a Link
Seat Pleasant n/a n/a Link Covered by WSSC
Sykesville n/a n/a Link
Pocomoke City n/a n/a Link
Indian Head n/a n/a Link
North East n/a n/a Link
Capitol Heights n/a n/a Link Covered by WSSC
Boonsboro n/a n/a Link
Brentwood n/a n/a Link Covered by WSSC
Princess Anne n/a n/a Link
Berwyn Heights n/a n/a Link Covered by WSSC
Smithsburg n/a n/a Link
Emmitsburg n/a n/a Link
Chevy Chase n/a n/a Link Covered by WSSC
Federalsburg n/a n/a Link
Rising Sun 125.0 7.3 Link
Forest Heights n/a n/a Link Covered by WSSC
Crisfield n/a n/a Link
University Park n/a n/a Link
Snow Hill n/a n/a Link
North Beach n/a n/a Link
Mountain Lake Park n/a n/a Link
Kensington n/a n/a Link Covered by WSSC
Williamsport n/a n/a Link
Hurlock n/a n/a Link
Chevy Chase Village n/a n/a Link Covered by WSSC
Myersville n/a n/a Link
Greensboro n/a n/a Link
Oakland n/a n/a Link
Westernport n/a n/a Link
Landover Hills n/a n/a Link Covered by WSSC
New Market n/a n/a Link Frederick County
Pittsville n/a n/a Link
Ridgely n/a n/a Link
Edmonston n/a n/a Link Covered by WSSC
Hancock n/a n/a Link
Colmar Manor n/a n/a Link Covered by WSSC
Charlestown n/a n/a Link
Fairmount Heights n/a n/a Link
New Windsor n/a n/a Link
Trappe n/a n/a Link
Cottage City n/a n/a Link Covered by WSSC
Keedysville n/a n/a Link
Morningside n/a n/a Link Covered by WSSC
Rock Hall n/a n/a Link
Somerset n/a n/a Link Covered by WSSC
Woodsboro n/a n/a Link
Hebron n/a n/a Link
St. Michaels n/a n/a Link
Chevy Chase View n/a n/a Link Covered by WSSC
Lonaconing n/a n/a Link
Garrett Park n/a n/a Link Covered by WSSC
Top 100 Maryland 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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