How hard is the water in Marysville, MI?

Tap water hardness
113mg/L
6.6gpg
Moderately hard

Reported by Marysville, City of · May 2022

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

Tap water in Marysville has about 113 mg/L of hardness, which is 6.6 grains per gallon. On the USGS scale that counts as moderately hard. The number comes from Marysville, City of, dated May 2022.

Marysville on the hardness scale, with nearby cities
060120180240300360+MI typical 112Fraser: 101 mg/LFraser 101St. Clair Shores: 101 mg/LSt. Clair Shores 101Roseville: 101 mg/LRoseville 101Mount Clemens: 103 mg/LMount Clemens 103Utica: 103 mg/LUtica 103Sterling Heights: 103 mg/LSterling Heights 103Rochester: 104 mg/LRochester 104New Baltimore: 136 mg/LNew Baltimore 136New Haven: 165 mg/LNew Haven 165Port Huron: 300 mg/LPort Huron 300Marysville 113mg/L as calcium carbonate060120180240300360+MI 112Fraser: 101 mg/LFraser 101Mount Clemens: 103 mg/LMount Clem. 103Utica: 103 mg/LUtica 103New Baltimore: 136 mg/LNew Baltim. 136New Haven: 165 mg/LNew Haven 165Port Huron: 300 mg/LPort Huron 300113 mg/Lmg/L as calcium carbonate
Soft 0–60 mg/LModerately hard 61–120 mg/LHard 121–180 mg/LVery hard 181+ mg/L

Marysville sits 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 101 mg/L in Fraser to 300 in Port Huron.

What 113 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 Marysville

3 people × 75 gallons a day × 6.6 gpg = 1,487 grains a day. A 24,000-grain unit regenerates about every 16 days.

Size it for your household

EPA record for Marysville's water system

Marysville, City of · PWSID MI0004160

No health-based violations since 2016

Serves about 9,959 people from surface water.

Health-based
0
Monitoring or reporting
0
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 Marysville water hard?

Somewhat. It measures about 113 mg/L (6.6 grains per gallon), which the USGS classes as moderately hard.

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

About 6.6 gpg. One grain per gallon equals 17.1 mg/L, so 113 mg/L divided by 17.1 gives 6.6.

What size water softener do I need in Marysville?

For 3 people using 75 gallons each per day, 6.6 gpg works out to about 1,487 grains a day. A 24,000-grain softener covers that with a regeneration about every 16 days.

Has the Marysville water system had EPA violations?

EPA records show no health-based violations for Marysville, City of since 2016.

Nearby cities

All 118 cities in Michigan

Hardness data: TapWaterData US Water Hardness (utility report, May 31, 2022), CC BY 4.0. Population: US Census Bureau. Violations: EPA ECHO. How we use them.