HardnessCheck

How hard is the water in Outagamie County, WI?

21.1 grains per gallon

The median hardness measured in Outagamie County, WI is 361 mg/L as calcium carbonate, which is 21.1 gpg. That is very hard on the USGS scale. It comes from 14 samples at 7 sites between 1990 and 2015, 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 18.5 and 31.8 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

At 21.1 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 14.8 to 52.0 gpg

The softest single sample on record in Outagamie County was 253 mg/L and the hardest 890 mg/L, a 4-fold gap. The top quarter of sites read above 31.8 gpg and the bottom quarter below 18.5 gpg.

Wells 21.1 gpg, rivers and lakes 17.8 gpg

14 groundwater samples from 7 wells put the median at 361 mg/L. 175 surface samples from 30 sites put it at 304 mg/L. In Outagamie County the wells come out 3.3 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 32,000-grain unit covers a week between regenerations. Expect about 461 lb of salt a year (12 bags of 40 lb, about $83), 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 $183 a year.

Sizing at 21.1 gpg

PeopleGrains a dayUnitSalt a year
11,26624,000154 lb
22,53224,000308 lb
45,06440,000616 lb
67,59664,000924 lb

Outagamie County against the rest of Wisconsin

Among the 72 Wisconsin counties with data, Outagamie County is number 9 of 72 counting from the hardest. Across the whole country it is harder than 86% of counties.

Softest in Wisconsin: Vilas County at 1.4 gpg. Hardest: Calumet County at 28.4 gpg. Closest to Outagamie County: Grant County (21), Sheboygan County (20.9), Racine County (20.8).