Hard water in Midvale, UT
Reported by Midvale City Water System · May 2025
- UT typical
- 231 mg/L
- EPA health violations since 2016
- 0
- Softener for 3 people
- 24k grain
- Data
- Utility report
Midvale water measures 161 mg/L (9.4 gpg) of hardness, hard by USGS standards. The number comes from Midvale City Water System, dated May 2025.
At 161 mg/L, Midvale is 70 mg/L below the typical Utah figure of 231. Of the 10 nearest cities we track, 2 have softer water and 8 have harder. The range nearby runs from 142 mg/L in South Jordan to 365 in Kearns.
What 161 mg/L means at home
Expect white crust on faucets and showerheads, plus spots on dishes that come out of the dishwasher.
Kettles collect scale quickly. Water heaters build up sediment at the bottom of the tank, which makes them work harder over time.
Soap and detergent need a little more to lather, and soap scum shows up in the tub.
Hardness is not a health problem, and EPA sets no limit for it. It is a matter of scale and soap.
What to do about it
At 161 mg/L most of the trouble is scale, and only a few things deal with it.
Ion-exchange water softener
The standard whole-house fix. It swaps calcium and magnesium for sodium or potassium and needs salt plus a drain. Size it with the calculator below.
Salt-free conditioner
No salt and no drain line. It changes how minerals form scale instead of removing them, so water still tests hard.
Reverse osmosis or carbon filter
Under-sink reverse osmosis removes minerals from drinking water only. Plain carbon filters improve taste but do not soften.
3 people × 75 gallons a day × 9.4 gpg = 2,120 grains a day. A 24,000-grain unit regenerates about every 11 days.
EPA record for Midvale's water system
No health-based violations since 2016
Serves about 33,005 people from surface water.
- Health-based
- 0
- Monitoring or reporting
- 92
- Open now
- 0
EPA lists this system as serving Midvale.
Health-based means a contaminant above its legal limit or a missed treatment step. Monitoring and reporting violations are late or missing tests and notices. Source: EPA ECHO, 2026Q3 export, violations with periods starting 2016 or later. Full EPA record.
Questions
Is Midvale water hard?
Yes. It measures about 161 mg/L (9.4 grains per gallon), which the USGS classes as hard.
What is the water hardness in Midvale in grains per gallon?
About 9.4 gpg. One grain per gallon equals 17.1 mg/L, so 161 mg/L divided by 17.1 gives 9.4.
What size water softener do I need in Midvale?
For 3 people using 75 gallons each per day, 9.4 gpg works out to about 2,120 grains a day. A 24,000-grain softener covers that with a regeneration about every 11 days.
Has the Midvale water system had EPA violations?
EPA records show no health-based violations for Midvale City Water System since 2016. There were also 92 monitoring or reporting violations, which are about late or missing tests and notices.
Nearby cities
- Murray216 mg/LVery hard
- Sandy156 mg/LHard
- Cottonwood Heights214 mg/LVery hard
- Taylorsville236 mg/LVery hard
- Holladay231 mg/LVery hard
- West Jordan243 mg/LVery hard
- Millcreek231 mg/LVery hard
- South Salt Lake231 mg/LVery hard
- Kearns365 mg/LVery hard
- South Jordan142 mg/LHard
Hardness data: TapWaterData US Water Hardness (utility report, May 10, 2025), CC BY 4.0. Population: US Census Bureau. Violations: EPA ECHO. How we use them.