How hard is the water in Montgomery County, KS?
9.9 grains per gallon
A softener is worth it here.
The median hardness measured in Montgomery County, KS is 170 mg/L as calcium carbonate, which is 9.9 gpg. That is hard on the USGS scale. It comes from 953 samples at 22 sites between 1990 and 2016, drawn from every sampling site in the county, wells and surface water together.
How much it varies here
Half the sites came in between 7.9 and 11.5 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: high (how it is measured).
What to do next
At 9.9 gpg a softener is worth getting, mainly to protect the water heater and cut soap use. Get at least two quotes, ask each installer what grain capacity they are fitting, and check it against the sizing table below. Because Montgomery 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 5.0 to 16.4 gpg
The softest single sample on record in Montgomery County was 86 mg/L and the hardest 280 mg/L, a 3-fold gap. The top quarter of sites read above 11.5 gpg and the bottom quarter below 7.9 gpg.
What a softener would cost to run
For a household of 3, a 24,000-grain unit covers a week between regenerations. Expect about 217 lb of salt a year (6 bags of 40 lb, about $39), 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 $139 a year.
Sizing at 9.9 gpg
| People | Grains a day | Unit | Salt a year |
|---|---|---|---|
| 1 | 594 | 24,000 | 72 lb |
| 2 | 1,188 | 24,000 | 145 lb |
| 4 | 2,376 | 24,000 | 289 lb |
| 6 | 3,564 | 32,000 | 434 lb |
Montgomery County against the rest of Kansas
Among the 105 Kansas counties with data, Montgomery County is number 93 of 105 counting from the hardest. Across the whole country it is harder than 51% of counties.
Softest in Kansas: Woodson County at 6.3 gpg. Hardest: Linn County at 114.5 gpg. Closest to Montgomery County: Elk County (9.9), Franklin County (9.9), Wilson County (9.9).