Hard water in Centerville, UT
Calculated from the utility's calcium and magnesium results · December 2023
- UT typical
- 231 mg/L
- EPA health violations since 2016
- 0
- Softener for 3 people
- 24k grain
- Data
- Calculated from utility data
Centerville water measures 160 mg/L (9.4 gpg) of hardness, hard by USGS standards. TapWaterData worked it out from the calcium and magnesium levels the local utility reports (December 2023).
Centerville sits 71 mg/L below the typical Utah figure of 231. Of the 10 nearest cities we track, 1 has softer water and 9 have harder. The range nearby runs from 134 mg/L in Kaysville to 463 in Bountiful.
What 160 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 160 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 = 2,106 grains a day. A 24,000-grain unit regenerates about every 11 days.
EPA record for Centerville's water system
No health-based violations since 2016
Serves about 17,155 people from surface water.
- Health-based
- 0
- Monitoring or reporting
- 13
- Open now
- 0
EPA lists this system as serving Centerville.
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 Centerville water hard?
Yes. It measures about 160 mg/L (9.4 grains per gallon), which the USGS classes as hard.
What is the water hardness in Centerville in grains per gallon?
About 9.4 gpg. One grain per gallon equals 17.1 mg/L, so 160 mg/L divided by 17.1 gives 9.4.
What size water softener do I need in Centerville?
For 3 people using 75 gallons each per day, 9.4 gpg works out to about 2,106 grains a day. A 24,000-grain softener covers that with a regeneration about every 11 days.
Has the Centerville water system had EPA violations?
EPA records show no health-based violations for Centerville City Water System since 2016. There were also 13 monitoring or reporting violations, which are about late or missing tests and notices.
Nearby cities
- Bountiful463 mg/LVery hard
- Farmington330 mg/LVery hard
- North Salt Lake358 mg/LVery hard
- Fruit Heights189 mg/LVery hard
- Kaysville134 mg/LHard
- Salt Lake City231 mg/LVery hard
- Layton190 mg/LVery hard
- Clearfield330 mg/LVery hard
- Syracuse330 mg/LVery hard
- South Salt Lake231 mg/LVery hard
Hardness data: TapWaterData US Water Hardness (calculated from utility data, December 14, 2023), CC BY 4.0. Population: US Census Bureau. Violations: EPA ECHO. How we use them.