Water Hardness in Texas Cities

Water Hardness in Texas Cities

Water hardness, which indicates the concentration of dissolved minerals like calcium and magnesium in water, can vary significantly across the vast state of Texas. Texas, situated in the southern central region of the U.S., exhibits a diverse range of water hardness levels, influenced by its expansive geological diversity.

Within Texas, hardness levels can range from soft in some areas to very hard in others, often reflecting the local geology and the source of water supply. For example, regions such as the Hill Country are known for having very hard water due to the limestone formations that contribute minerals to the water. In contrast, other areas may have comparatively softer water.

This variation in water hardness across Texas affects both the taste of the water and the performance of cleaning agents like soaps and detergents. It can also have implications for the maintenance of water pipes and appliances. Given the state’s size and geological complexity, water hardness levels are not uniform and can change, emphasizing the need for localized water treatment solutions and monitoring.

The data below illustrates a wide spectrum of water hardness measurements across different cities, quantified in Parts Per Million (ppm) and Grains Per Gallon (gpg). Some cities, including San Angelo, Kyle, and Round Rock display significantly high water hardness levels, reaching up to 472 ppm, 27.57 gpg. On the other end of the spectrum, cities like College Station and Bryan boast exceptionally low water hardness figures, downwards of 6.0 ppm, 0.35 gpg. Nonetheless, there is a noticeable absence of water hardness data for several cities, such as San Antonio, Dallas, and Austin, as no current figures are available for these locations.

City Hardness ppm (mg/L) Hardness gpg Information Source Notes
Houston 136.0 7.9 Link
San Antonio n/a n/a Link
Dallas n/a n/a Link
Austin n/a n/a Link Report mentions they soften the water, but don’t provide a ppm or gpg value
Fort Worth 135.5 7.9 Link
El Paso 171.4 10.0 Link From the “Chemical Analysis” report at bottom of this page, not the water CCR
Arlington 95.1 5.6 Link
Corpus Christi 163.0 9.5 Link
Plano 142.0 8.3 Link
Lubbock 201.0 11.7 Link
Laredo n/a n/a Link
Irving n/a n/a Link
Garland 142.0 8.3 Link
Frisco 142.0 8.3 Link
McKinney n/a n/a Link
Amarillo n/a n/a Link
Grand Prairie 170.0 9.9 Link
Brownsville 77.3 4.5 Link
Killeen n/a n/a Link
Pasadena 136.0 7.9 Link Purchases water from Houston
Denton n/a n/a Link Only alkalinity reported, not hardness
Mesquite 142.0 8.3 Link
McAllen n/a n/a Link
Waco n/a n/a Link
Carrollton n/a n/a Link
Midland n/a n/a Link
Pearland n/a n/a Link
Abilene 227.0 13.3 Link
Round Rock 241.0 14.1 Link
College Station 6.0 0.4 Link
Richardson 142.0 8.3 Link
League City n/a n/a Link
Lewisville n/a n/a Link
Beaumont n/a n/a Link
Odessa n/a n/a Link
Sugar Land 148.0 8.6 Link
Tyler 31.8 1.9 Link
Allen 142.0 8.3 Link
Wichita Falls n/a n/a Link
Edinburg n/a n/a Link
San Angelo 472.0 27.8 Link Taken from weekly report, was not in CCR. Used the Sept 14 Report
New Braunfels n/a n/a Link
Conroe n/a n/a Link
Bryan 8.5 0.5 Link
Mission n/a n/a Link
Temple 149.0 8.7 Link
Baytown n/a n/a Link
Longview 65.1 3.8 Link
Pharr n/a n/a Link
Cedar Park 175.0 10.2 Link
Flower Mound n/a n/a Link
Georgetown n/a n/a Link
Missouri City n/a n/a Link
Mansfield 105.0 6.0 Link
Harlingen n/a n/a Link
North Richland Hills 137.0 8.0 Link
San Marcos 283.0 16.5 Link
Leander 171.0 10.0 Link
Pflugerville 212.4 12.4 Link
Victoria 181.0 10.6 Link
Rowlett 142.0 8.3 Link
Euless 66.9 3.9 Link Took median of the two sources serving Euless
Wylie 142.0 8.3 Link
DeSoto n/a n/a Link
Port Arthur n/a n/a Link
Texas City n/a n/a Link
Galveston 173.0 10.1 Link
Kyle 304.0 16.5 Link
Burleson 136.0 7.9 Link
Little Elm 142.0 8.3 Link
Grapevine 121.0 7.1 Link Took median of two sources serving Grapevine
Rockwall 142.0 8.3 Link
Bedford 125.0 7.3 Link
Cedar Hill n/a n/a Link
Huntsville n/a n/a Link
Haltom City 135.5 7.9 Link
Keller 135.5 7.9 Link
The Colony 11.9 0.7 Link
Sherman 95.3 5.6 Link Took median of the range of the Distribution System sample
Waxahachie 94.6 5.5 Link
Schertz 100.0 5.8 Link
Coppell n/a n/a Link
Weslaco n/a n/a Link
Friendswood 136.0 7.9 Link Purchases from Houston
Lancaster n/a n/a Link
Hurst 98.0 5.7 Link
Duncanville n/a n/a Link
Rosenberg 93.2 5.4 Link
Midlothian n/a n/a Link
Copperas Cove n/a n/a Link
Farmers Branch n/a n/a Link
Socorro 233.0 13.6 Link Lower Valley Water District Provides their water, and purchases from El Paso, took average of two Lower Valley listings on the El Paso CCR
Texarkana n/a n/a Link
La Porte n/a n/a Link
San Juan n/a n/a Link
Del Rio n/a n/a Link
Prosper 142.0 8.3 Link
Lufkin n/a n/a Link
Weatherford 151.0 8.8 Link
Deer Park n/a n/a Link
Top 100 Texas 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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