Hard water in Saline, MI
Reported by Pittsfield Township · March 2025
- MI typical
- 112 mg/L
- EPA health violations since 2016
- 0
- Softener for 3 people
- 24k grain
- Data
- Utility report
The water in Saline carries roughly 123 mg/L of dissolved calcium and magnesium, or 7.2 grains per gallon. That is hard water. The number comes from Pittsfield Township, dated March 2025.
At 123 mg/L, Saline is 11 mg/L above the typical Michigan figure of 112. Of the 10 nearest cities we track, 4 have softer water and 6 have harder. The range nearby runs from 91 mg/L in Wayne to 460 in South Lyon.
What 123 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 123 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 × 7.2 gpg = 1,618 grains a day. A 24,000-grain unit regenerates about every 14 days.
EPA record for Saline's water system
No health-based violations since 2016
Serves about 9,158 people from groundwater.
- Health-based
- 0
- Monitoring or reporting
- 7
- Open now
- 0
EPA lists Saline as the system serving Saline. The hardness figure above comes from a different system's report, which TapWaterData uses for Saline.
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 Saline water hard?
Yes. It measures about 123 mg/L (7.2 grains per gallon), which the USGS classes as hard.
What is the water hardness in Saline in grains per gallon?
About 7.2 gpg. One grain per gallon equals 17.1 mg/L, so 123 mg/L divided by 17.1 gives 7.2.
What size water softener do I need in Saline?
For 3 people using 75 gallons each per day, 7.2 gpg works out to about 1,618 grains a day. A 24,000-grain softener covers that with a regeneration about every 14 days.
Has the Saline water system had EPA violations?
EPA records show no health-based violations for Saline since 2016. There were also 7 monitoring or reporting violations, which are about late or missing tests and notices.
Nearby cities
- Ann Arbor156 mg/LHard
- Ypsilanti168 mg/LHard
- Tecumseh348 mg/LVery hard
- Whitmore Lake184 mg/LVery hard
- South Lyon460 mg/LVery hard
- Plymouth104 mg/LModerately hard
- Wayne91 mg/LModerately hard
- Romulus92 mg/LModerately hard
- Westland96 mg/LModerately hard
- Northville132 mg/LHard
Hardness data: TapWaterData US Water Hardness (utility report, March 31, 2025), CC BY 4.0. Population: US Census Bureau. Violations: EPA ECHO. How we use them.