Menomonee Falls, WI water hardness
Menomonee Falls water hardness, one supply at a time
The Village of Menomonee Falls water utility publishes two hardness figures because it delivers two kinds of water. Its Lake Michigan supply, bought from Milwaukee Water Works, runs 7 to 9 grains per gallon, while the Village's wells run 27 to 32. Your address decides which of the two reaches your tap.
Call (262) 829-5961Mon to Fri, 7am to 5pmSource: Village of Menomonee Falls water utility FAQ
Where Menomonee Falls water comes from
A single utility handles both supplies. The Village of Menomonee Falls water utility serves one part of the village with Lake Michigan water that it buys from Milwaukee Water Works. The rest of the village gets groundwater from wells the Village owns.
Each supply comes with its own hardness, and the Village gives both in its utility FAQ in grains per gallon. For the wells it adds a figure in milligrams per liter: roughly 462 to 547.
Where the two figures sit on the USGS scale
The U.S. Geological Survey's scale runs on milligrams per liter: soft up to 60, moderately hard from 61 to 120, hard from 121 to 180, very hard past 180. Convert with 17.1 milligrams per liter to each grain per gallon, and very hard begins near 10.5 grains.
Village well water, 462 to 547 milligrams per liter, is far beyond that line. The lake range is lower: 7 grains converts to roughly 120, right where moderately hard gives way to hard, and 9 grains lands inside the hard band.
Where neither figure applies
Both ranges describe water the Village delivers through its mains. A house drawing from a private well on its own lot sits outside both, and nobody knows its hardness until a lab or a plumber measures it.
Homes in Lannon and Butler, also served by this site, are in the same position: their water comes from their own supplier or their own well, and the Village's numbers do not cover it.
And inside the Village system each figure is a range, so a given tap reads somewhere within one of them, not at a fixed point.
How to find your own number
Begin with the supply question. Ask the Village utility, with your street address, whether you get lake water or well water, and you will know which range to read. Both ranges are printed in the utility FAQ.
For a private well, the number is on its lab report. If the lab reports milligrams per liter, a division by 17.1 gives grains per gallon.
From your range to the quote
Your address points to one range or the other, and that, along with your household's head count, is where the quote starts. A private well starts from its lab report instead.
On installation day the plumber takes a hardness reading at your faucet before anything is connected, so the softener is set from your water rather than from a range. Once the work is done, that faucet is tested again until it reads zero.
Common questions
Why are there two hardness numbers for Menomonee Falls?
Because the Village delivers two different waters: the lake water it purchases from Milwaukee Water Works, and groundwater from the Village's own wells. Each has a range of its own.
Is there an average for the whole village?
Averaging 7 to 9 with 27 to 32 would give a number that describes neither supply. What matters is which supply your address gets.
What is 27 to 32 grains in milligrams per liter?
Roughly 462 to 547, by the Village's own conversion, which puts it deep in the USGS very hard band.
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