How hard is the water in Brooklyn Center, MN?

Tap water hardness
79mg/L
4.6gpg
Moderately hard

Reported by Brooklyn Center · July 2022

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

The water in Brooklyn Center carries roughly 79 mg/L of dissolved calcium and magnesium, or 4.6 grains per gallon. That is moderately hard water. The number comes from Brooklyn Center, dated July 2022.

Brooklyn Center on the hardness scale, with nearby cities
060120180240300360+MN typical 160Minneapolis: 89 mg/LMinneapolis 89Golden Valley: 90 mg/LGolden Valley 90St. Louis Park: 112 mg/LSt. Louis Park 112Brooklyn Park: 120 mg/LBrooklyn Park 120Shoreview: 192 mg/LShoreview 192Robbinsdale: 201 mg/LRobbinsdale 201Coon Rapids: 201 mg/LCoon Rapids 201New Brighton: 230 mg/LNew Brighton 230Champlin: 234 mg/LChamplin 234St. Anthony: 254 mg/LSt. Anthony 254Brooklyn Center 79mg/L as calcium carbonate060120180240300360+MN 160Golden Valley: 90 mg/LGolden Val. 90Brooklyn Park: 120 mg/LBrooklyn P. 120Robbinsdale: 201 mg/LRobbinsdale 201Coon Rapids: 201 mg/LCoon Rapids 201New Brighton: 230 mg/LNew Bright. 230St. Anthony: 254 mg/LSt. Anthony 25479 mg/Lmg/L as calcium carbonate
Soft 0–60 mg/LModerately hard 61–120 mg/LHard 121–180 mg/LVery hard 181+ mg/L

Brooklyn Center sits 81 mg/L below the typical Minnesota figure of 160. None of the 10 nearest cities we track has softer water. The range nearby runs from 89 mg/L in Minneapolis to 254 in St. Anthony.

What 79 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 Brooklyn Center

3 people × 75 gallons a day × 4.6 gpg = 1,037 grains a day. A 24,000-grain unit regenerates about every 23 days.

Size it for your household

EPA record for Brooklyn Center's water system

Brooklyn Center · PWSID MN1270004

No health-based violations since 2016

Serves about 33,782 people from groundwater.

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 Brooklyn Center water hard?

Somewhat. It measures about 79 mg/L (4.6 grains per gallon), which the USGS classes as moderately hard.

What is the water hardness in Brooklyn Center in grains per gallon?

About 4.6 gpg. One grain per gallon equals 17.1 mg/L, so 79 mg/L divided by 17.1 gives 4.6.

What size water softener do I need in Brooklyn Center?

For 3 people using 75 gallons each per day, 4.6 gpg works out to about 1,037 grains a day. A 24,000-grain softener covers that with a regeneration about every 23 days.

Has the Brooklyn Center water system had EPA violations?

EPA records show no health-based violations for Brooklyn Center since 2016.

Nearby cities

All 57 cities in Minnesota

Hardness data: TapWaterData US Water Hardness (utility report, July 23, 2022), CC BY 4.0. Population: US Census Bureau. Violations: EPA ECHO. How we use them.