Water hardness in Brooklyn Park
36 gpg very hard
Tap water in Brooklyn Park is very hard: 36 gpg (616 mg/L · 34.5 °dH · 61.6 °fH).
Source: City of Brooklyn Park, Drinking Water Report page FAQ 'How hard is Brooklyn Park's water?' (2026) · data checked 2026-10-29
Range across supply zones: 582–651 mg/L.
Brooklyn Park pumps groundwater from city wells in glacial drift and the bedrock aquifers below it, including the Jordan and Mount Simon, and treats it only for iron and manganese. Carbonate-rich glacial deposits make the water extremely hard at 616.3 mg/L CaCO₃ (582.1–650.6 mg/L), among the hardest in Minnesota. A softener is practically essential.
USGS classes: soft 0–60, moderately hard 61–120, hard 121–180, very hard >180 mg/L.
Water data
| Total hardness | 36 gpg |
|---|---|
| Utility | City of Brooklyn Park (Public Works, municipal water) |
How Brooklyn Park compares
- Tap water in Brooklyn Park is 297 % harder than the median of the 1372 cities we track in the United States (9.1 gpg).
- By hardness it ranks 5 of 1372 in the United States (1 = hardest); 100 % of these cities have softer water.
- In Minnesota it is number 1 of 23 cities; the regional median is 17 gpg.
- Nearest city with clearly softer water: Minneapolis, 15 km away (5.4 gpg).
Ranking of the hardest and softest water in the United States →
What it means at home
- Severe scale: heater elements and washing-machine heaters fail early.
- Detergent use is very high; taps and screens coat within days.
- Dishwasher at maximum salt setting.
- An ion-exchange softener is practically essential; RO for drinking water.
How much salt will you use for softening?
Yes. At this hardness a softener pays for itself through appliance life and detergent.
Descale a coffee machine or kettle about every 1 months (typical manufacturer guidance for this hardness).
Estimates for planning, not a quote. Check your appliance manual for exact settings.
Dishwasher setting in Brooklyn Park
| Brand | Setting for this water |
|---|---|
| Bosch | H07 |
| Miele | 35 °dH |
| AEG / Electrolux | 7 |
| Beko | 6th |
| Hoover | S5 |
| LG | H4 |
From each brand's manual for the model family named in the source; your model may differ, so check its manual. All brands and how to change the setting →
FAQ
Is Brooklyn Park water hard or soft?
It is very hard: 616 mg/L as CaCO₃ (36 gpg, 34.5 °dH). The usual bands are soft < 60, moderately hard 60–120, hard 120–180 and very hard > 180 mg/L.
Is tap water in Brooklyn Park safe to drink?
Hardness is not a health issue; it is about limescale, taste and appliances. Mains water must meet national drinking-water standards. USGS classes: soft 0–60, moderately hard 61–120, hard 121–180, very hard >180 mg/L.
How many grains per gallon is Brooklyn Park water?
36 gpg, equal to 34.5 °dH, 61.6 °fH or 616 mg/L calcium carbonate.
What dishwasher salt setting should I use in Brooklyn Park?
For 616 mg/L (34.5 °dH) check your manufacturer's table: maximum level (5–7).
Do I need a water softener in Brooklyn Park?
Yes, unless you are only passing through: scale damages appliances within a few years.
Source
Source: City of Brooklyn Park, Drinking Water Report page FAQ 'How hard is Brooklyn Park's water?' (2026). Method: computed from supplier's calcium and magnesium. City of Brooklyn Park, Drinking Water Report page FAQ 'How hard is Brooklyn Park's water?' · Outdated figure? Tell us