How hard is the water in Westmoreland County, VA?

0.6 grains per gallon

You do not need a softener here.

The median hardness measured in Westmoreland County, VA is 10 mg/L as calcium carbonate, which is 0.6 gpg. That is soft on the USGS scale. It comes from 16 samples at 13 sites between 1991 and 2026, 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 0.3 and 1.3 gpg. The whole middle of that range gives the same answer, so a test of your own tap is unlikely to change it. Confidence in the county figure: medium (how it is measured).

What to do next

You can skip the softener. At 0.6 gpg the most a softener would fix is the odd water spot. If a salesperson in Westmoreland County says otherwise, ask to see their reading in grains per gallon and compare it with this one.

More on when a softener is not worth it.

From 0.0 to 6.2 gpg

The softest single sample on record in Westmoreland County was 0.5 mg/L and the hardest 105.7 mg/L, a 211-fold gap. The top quarter of sites read above 1.3 gpg and the bottom quarter below 0.3 gpg.

Wells 0.6 gpg, rivers and lakes 1.6 gpg

16 groundwater samples from 13 wells put the median at 10 mg/L. 152 surface samples from 19 sites put it at 26.6 mg/L. In Westmoreland County the rivers and lakes come out 1.0 gpg harder. Here the surface water reads harder than the wells, which often points to streams fed by limestone springs or irrigation return flow. The two sources are close, so the county figure should hold whichever one your tap is on.

Westmoreland County against the rest of Virginia

Among the 126 Virginia counties with data, Westmoreland County is number 123 of 126 counting from the hardest. Across the whole country it is harder than 3% of counties.

Softest in Virginia: Isle of Wight County at 0.4 gpg. Hardest: Clarke County at 20.1 gpg. Closest to Westmoreland County: King and Queen County (0.5), King William County (0.7), Isle of Wight County (0.4).