Cottonwood Heights, Utah Water Hardness & Water Softener Guide
The published hardness for Cottonwood Heights is 10 grains per gallon. Below is where that figure comes from and what it does to a house.
Where Cottonwood Heights’s water comes from
Cottonwood Heights does not spell out its sources alongside the hardness figure it publishes. The report itself is here: jvwcd.gov · live 2026
Is Cottonwood Heights hard water?
At 10 grains per gallon, Cottonwood Heights sits in the hard band — above about 10.5 grains per gallon is very hard on the USGS scale. Scale shows up first inside the water heater, then on fixtures and glass. See the hardness scale.
Worth knowing: JVWCD figure (170 mg/L); city publishes none.
It costs in water heater life and in detergent long before it is visible.
What Cottonwood Heights’s hardness means in practice
Sizing is arithmetic once you have a number. At 10.0 grains per gallon — the published figure — a household using the EPA average of more than 300 gallons a day sends roughly 3,000 grains of hardness through its plumbing every day. Over a year that is about 156 pounds of scale-forming calcium and magnesium passing through the water heater and the fixtures.
Against that load a 32,000-grain softener would regenerate roughly every 10.7 days and a 48,000-grain unit about every 16.0 days. Those are first estimates off the figure Cottonwood Heights publishes, not a quote: your own use, any iron in the water, and whether you want softened water at the kitchen tap all move the answer, which is why we measure at your tap before sizing anything.
What CASA recommends in Cottonwood Heights
At the hardness Cottonwood Heights publishes, a correctly sized softener earns its keep in water heater and fixture life. Reverse osmosis at the kitchen sink handles taste; whole-home carbon takes chlorine out at every tap.
Water hardness in nearby cities
Cottonwood Heights water hardness FAQ
How hard is the water in Cottonwood Heights, Utah? Cottonwood Heights is published at 10 grains per gallon. Source: jvwcd.gov · live 2026
Where does Cottonwood Heights get its drinking water? See the sources listed above.
Do I need a water softener in Cottonwood Heights? That depends on your measured hardness, not on a citywide average. We test first and size the system to the result.
How do I find my exact hardness? Book a free CASA water test. We measure at your tap and put the number in writing. How the scale works.
Free Cottonwood Heights water test
We measure your exact hardness and recommend the right system — no pressure, flat written quote.
