How hard is the water in Woodhaven, MI?

Tap water hardness
96mg/L
5.6gpg
Moderately hard

Reported by Brownstown Township · August 2024

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

Woodhaven water measures 96 mg/L (5.6 gpg) of hardness, moderately hard by USGS standards. The number comes from Brownstown Township, dated August 2024.

Woodhaven on the hardness scale, with nearby cities
060120180240300360+MI typical 112Romulus: 92 mg/LRomulus 92Flat Rock: 96 mg/LFlat Rock 96Taylor: 102 mg/LTaylor 102Allen Park: 104 mg/LAllen Park 104Ecorse: 104 mg/LEcorse 104Melvindale: 104 mg/LMelvindale 104Wyandotte: 105 mg/LWyandotte 105Trenton: 109 mg/LTrenton 109Riverview: 109 mg/LRiverview 109Lincoln Park: 128 mg/LLincoln Park 128Woodhaven 96mg/L as calcium carbonate060120180240300360+MI 112Flat Rock: 96 mg/LFlat Rock 96Taylor: 102 mg/LTaylor 102Wyandotte: 105 mg/LWyandotte 105Trenton: 109 mg/LTrenton 109Riverview: 109 mg/LRiverview 109Lincoln Park: 128 mg/LLincoln Pa. 12896 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 96 mg/L, Woodhaven is 16 mg/L below the typical Michigan figure of 112. Of the 10 nearest cities we track, 1 has softer water and 8 have harder. The range nearby runs from 92 mg/L in Romulus to 128 in Lincoln Park.

What 96 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 Woodhaven

3 people × 75 gallons a day × 5.6 gpg = 1,264 grains a day. A 24,000-grain unit regenerates about every 18 days.

Size it for your household

EPA record for Woodhaven's water system

Woodhaven · PWSID MI0007180

No health-based violations since 2016

Serves about 12,941 people from surface water.

Health-based
0
Monitoring or reporting
6
Open now
0

EPA lists Woodhaven as the system serving Woodhaven. The hardness figure above comes from a different system's report, which TapWaterData uses for Woodhaven.

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 Woodhaven water hard?

Somewhat. It measures about 96 mg/L (5.6 grains per gallon), which the USGS classes as moderately hard.

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

About 5.6 gpg. One grain per gallon equals 17.1 mg/L, so 96 mg/L divided by 17.1 gives 5.6.

What size water softener do I need in Woodhaven?

For 3 people using 75 gallons each per day, 5.6 gpg works out to about 1,264 grains a day. A 24,000-grain softener covers that with a regeneration about every 18 days.

Has the Woodhaven water system had EPA violations?

EPA records show no health-based violations for Woodhaven since 2016. There were also 6 monitoring or reporting violations, which are about late or missing tests and notices.

Nearby cities

All 118 cities in Michigan

Hardness data: TapWaterData US Water Hardness (utility report, August 13, 2024), CC BY 4.0. Population: US Census Bureau. Violations: EPA ECHO. How we use them.