Two Muskego wells, one day: what the DNR samples show
The nearest thing Muskego has to a published hardness figure is two lines in the Wisconsin DNR's compliance records, both dated April 27, 2026. They read 49.6 and 405 milligrams per liter, and the distance between them is the whole story.
Call (262) 829-5961Mon to Fri, 7am to 5pmWhere the numbers come from
The Wisconsin DNR publishes compliance sampling results for public water systems on its drinking water portal, and the Muskego Water Utility's results are there. Two of them, from two municipal wells sampled the same day, are the figures on this page.
The utility itself publishes no hardness number, which is why these samples get quoted at all.
49.6 and 405, side by side
One well came back at 49.6 milligrams per liter. The other came back at 405, a little more than eight times as much. At 17.1 milligrams per liter per grain, the pair works out to about 3 grains per gallon and about 24.
The USGS line between hard and very hard sits at 180, well above the first well and well below the second.
An average of the two would land somewhere neither well actually is.
Soft and very hard, from one system
On the USGS scale, anything at or under 60 milligrams per liter counts as soft, which takes in the 49.6 sample. Very hard begins past 180, and the 405 sample is more than twice that line.
So one municipal system, on one spring day, produced water at both ends of the scale.
What the samples do not tell you
They describe two wells on one day. They do not say which well feeds which street, or what reaches your tap, and the utility publishes no hardness by street or by well.
They also say nothing about private wells off the corridors, which draw their own groundwater and have no published figure at all. And two samples from one day are a snapshot, not a trend.
How the call uses them
They are the reason a Muskego quote starts from your address and ends with a reading taken in your house. When the plumber arrives, the first job is a test; the setting follows from that reading, and the retests go on until the faucet shows zero.
Any test of your own water is worth having ready for the call. It describes your house, which the samples cannot.
Common questions
Where can I see the samples myself?
Through the Wisconsin DNR's online portal for public water systems; look up the Muskego Water Utility.
Is 49.6 milligrams per liter soft water?
On the USGS scale, yes, since soft covers everything through 60. It works out to about 3 grains per gallon.
Do the samples mean my tap reads 3 grains or 24?
Not necessarily either. They describe two wells, not your tap, which is why your own faucet gets tested before anything is set.
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