How hard is the water in Ashland County, WI?
3.6 grains per gallon
Optional: a softener helps, but plenty of homes skip it.
The median hardness measured in Ashland County, WI is 62 mg/L as calcium carbonate, which is 3.6 gpg. That is moderately hard on the USGS scale. It comes from 4,213 samples at 121 sites between 1990 and 2021, drawn from every sampling site in the county, wells and surface water together.
How much it varies here
Half the sites came in between 3.2 and 4 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: high (how it is measured).
What to do next
At 3.6 gpg this is your call. Look for white film on glasses and crust on the shower head: if you see little of either, you can live without one. If you do want one, a 24,000-grain unit is enough, so ask for that size rather than a bigger one. Because Ashland County straddles a decision line, check your own tap with a $10 test strip before you spend anything.
More on when a softener is not worth it.
From 1.3 to 12.9 gpg
The softest single sample on record in Ashland County was 22 mg/L and the hardest 220 mg/L, a 10-fold gap. The top quarter of sites read above 4 gpg and the bottom quarter below 3.2 gpg.
Wells 6.7 gpg, rivers and lakes 3.6 gpg
1 groundwater samples from 1 wells put the median at 114 mg/L. 3,950 surface samples from 108 sites put it at 62 mg/L. In Ashland County the wells come out 3.1 gpg harder. Groundwater sits in contact with rock for years and picks up calcium and magnesium as it goes, so wells usually read harder. A utility here that draws from the river can deliver noticeably different water from a private well next door.
What a softener would cost to run
For a household of 3, a 24,000-grain unit covers a week between regenerations. Expect about 79 lb of salt a year (2 bags of 40 lb, about $14), 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 $114 a year.
Sizing at 3.6 gpg
| People | Grains a day | Unit | Salt a year |
|---|---|---|---|
| 1 | 216 | 24,000 | 26 lb |
| 2 | 432 | 24,000 | 53 lb |
| 4 | 864 | 24,000 | 105 lb |
| 6 | 1,296 | 24,000 | 158 lb |
Ashland County against the rest of Wisconsin
Among the 72 Wisconsin counties with data, Ashland County is number 60 of 72 counting from the hardest. Across the whole country it is harder than 25% of counties.
Softest in Wisconsin: Vilas County at 1.4 gpg. Hardest: Calumet County at 28.4 gpg. Closest to Ashland County: Douglas County (3.7), Dane County (3.7), Juneau County (3.7).