How hard is the water in Meade County, SD?
25.5 grains per gallon
A softener will pay its way here.
The median hardness measured in Meade County, SD is 437 mg/L as calcium carbonate, which is 25.5 gpg. That is very hard on the USGS scale. It comes from 30 samples at 20 sites between 1990 and 2021, 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 15.6 and 35.7 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: high (how it is measured).
What to do next
At 25.5 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.
More on sizing a softener for your household.
From 11.6 to 58.4 gpg
The softest single sample on record in Meade County was 198 mg/L and the hardest 1,000 mg/L, a 5-fold gap. The top quarter of sites read above 35.7 gpg and the bottom quarter below 15.6 gpg.
Wells 25.5 gpg, rivers and lakes 48.7 gpg
30 groundwater samples from 20 wells put the median at 436.5 mg/L. 175 surface samples from 9 sites put it at 834.5 mg/L. In Meade County the rivers and lakes come out 23.2 gpg harder. Here the surface water reads harder than the wells, which often points to streams fed by limestone springs or irrigation return flow. A utility here that draws from the aquifer can deliver noticeably different water from a private well next door.
What a softener would cost to run
For a household of 3, a 40,000-grain unit covers a week between regenerations. Expect about 557 lb of salt a year (14 bags of 40 lb, about $100), 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 $200 a year.
Sizing at 25.5 gpg
| People | Grains a day | Unit | Salt a year |
|---|---|---|---|
| 1 | 1,530 | 24,000 | 186 lb |
| 2 | 3,060 | 24,000 | 372 lb |
| 4 | 6,120 | 48,000 | 745 lb |
| 6 | 9,180 | 80,000 | 1,117 lb |
Meade County against the rest of South Dakota
Among the 55 South Dakota counties with data, Meade County is number 25 of 55 counting from the hardest. Across the whole country it is harder than 92% of counties.
Softest in South Dakota: Dewey County at 0.5 gpg. Hardest: Hanson County at 84.7 gpg. Closest to Meade County: Grant County (25.3), Aurora County (25.1), Minnehaha County (26).