How hard is the water in Wyandotte, MI?

Tap water hardness
105mg/L
6.1gpg
Moderately hard

Reported by Wyandotte · October 2025

MI typical
112 mg/L
EPA health violations since 2016
0
Softener for 3 people
24k grain
Data
Utility report

The water in Wyandotte carries roughly 105 mg/L of dissolved calcium and magnesium, or 6.1 grains per gallon. That is moderately hard water. The number comes from Wyandotte, dated October 2025.

Wyandotte on the hardness scale, with nearby cities
060120180240300360+MI typical 112River Rouge: 96 mg/LRiver Rouge 96Woodhaven: 96 mg/LWoodhaven 96Dearborn: 99 mg/LDearborn 99Taylor: 102 mg/LTaylor 102Ecorse: 104 mg/LEcorse 104Allen Park: 104 mg/LAllen Park 104Melvindale: 104 mg/LMelvindale 104Riverview: 109 mg/LRiverview 109Trenton: 109 mg/LTrenton 109Lincoln Park: 128 mg/LLincoln Park 128Wyandotte 105mg/L as calcium carbonate060120180240300360+MI 112River Rouge: 96 mg/LRiver Rouge 96Ecorse: 104 mg/LEcorse 104Allen Park: 104 mg/LAllen Park 104Melvindale: 104 mg/LMelvindale 104Riverview: 109 mg/LRiverview 109Lincoln Park: 128 mg/LLincoln Pa. 128105 mg/Lmg/L as calcium carbonate
Soft 0–60 mg/LModerately hard 61–120 mg/LHard 121–180 mg/LVery hard 181+ mg/L

At 105 mg/L, Wyandotte is close to the typical Michigan figure of 112 mg/L. Of the 10 nearest cities we track, 7 have softer water and 3 have harder. The range nearby runs from 96 mg/L in River Rouge to 128 in Lincoln Park.

What 105 mg/L means at home

You may see faint white spots on glasses and shower doors after the water dries.

Scale builds up slowly. A kettle or coffee maker needs descaling now and then, maybe every few months.

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

Optional. Plenty of households at this level live with it and descale the kettle now and then.

Water softener

Worth a look if spots on glass bother you, or if your tankless water heater manual asks for softer water.

Carbon filter

Improves taste and removes chlorine. It leaves calcium and magnesium in place.

Softener size for Wyandotte

3 people × 75 gallons a day × 6.1 gpg = 1,381 grains a day. A 24,000-grain unit regenerates about every 17 days.

Size it for your household

EPA record for Wyandotte's water system

Wyandotte · PWSID MI0007210

No health-based violations since 2016

Serves about 25,883 people from surface water.

Health-based
0
Monitoring or reporting
1
Open now
0

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 Wyandotte water hard?

Somewhat. It measures about 105 mg/L (6.1 grains per gallon), which the USGS classes as moderately hard.

What is the water hardness in Wyandotte in grains per gallon?

About 6.1 gpg. One grain per gallon equals 17.1 mg/L, so 105 mg/L divided by 17.1 gives 6.1.

What size water softener do I need in Wyandotte?

For 3 people using 75 gallons each per day, 6.1 gpg works out to about 1,381 grains a day. A 24,000-grain softener covers that with a regeneration about every 17 days.

Has the Wyandotte water system had EPA violations?

EPA records show no health-based violations for Wyandotte since 2016. There were also 1 monitoring or reporting violation, which are about late or missing tests and notices.

Nearby cities

All 118 cities in Michigan

Hardness data: TapWaterData US Water Hardness (utility report, October 1, 2025), CC BY 4.0. Population: US Census Bureau. Violations: EPA ECHO. How we use them.