HardnessCheck

How hard is the water in La Salle County, TX?

17.4 grains per gallon

The median hardness measured in La Salle County, TX is 298 mg/L as calcium carbonate, which is 17.4 gpg. That is very hard on the USGS scale. It comes from 6 samples at 6 sites between 2015 and 2016, drawn from groundwater wells, which is what most taps and private wells in the county draw on.

How much it varies here

Half the sites came in between 3.1 and 25.5 gpg. That spread crosses a decision line, so some homes here land on a different answer. A $10 test strip on your own tap settles it. Confidence in the county figure: medium (how it is measured).

What to do next

At 17.4 gpg a softener pays its way here. Before you buy, check the quoted unit's grain capacity against the sizing table below, and ask whether it regenerates on demand, which uses less salt than a timer. Call your utility for its own report if you are on city water. Because La Salle County straddles a decision line, check your own tap with a $10 test strip before you spend anything.

More on sizing a softener for your household.

From 0.5 to 73.6 gpg

The softest single sample on record in La Salle County was 8.2 mg/L and the hardest 1,260 mg/L, a 154-fold gap. The top quarter of sites read above 25.5 gpg and the bottom quarter below 3.1 gpg. So even here some sites draw water soft enough to need nothing at all.

What a softener would cost to run

For a household of 3, a 24,000-grain unit covers a week between regenerations. Expect about 380 lb of salt a year (10 bags of 40 lb, about $68), and roughly 2,346 gallons of regeneration water. Installed, most units run $1,000 to $4,500; spread over 15 years with salt, that is about $168 a year.

Sizing at 17.4 gpg

PeopleGrains a dayUnitSalt a year
11,04424,000127 lb
22,08824,000254 lb
44,17632,000508 lb
66,26448,000762 lb

La Salle County against the rest of Texas

Among the 217 Texas counties with data, La Salle County is number 72 of 217 counting from the hardest. Across the whole country it is harder than 77% of counties.

Softest in Texas: Nacogdoches County at 0.3 gpg. Hardest: Ward County at 218.5 gpg. Closest to La Salle County: Val Verde County (17.5), Victoria County (17.5), Goliad County (17.7).