Water hardness in Golden Valley
5 gpg moderately hard
Tap water in Golden Valley is moderately hard: 5 gpg (86 mg/L · 4.8 °dH · 8.6 °fH).
Source: City of Golden Valley Water System page (2025) · data checked 2026-11-02
Golden Valley gets its water through the Joint Water Commission, which buys it from Minneapolis. The city reports 85.6 mg/L, moderate hardness. At that level scale builds slowly.
USGS classes: soft 0–60, moderately hard 61–120, hard 121–180, very hard >180 mg/L.
Water data
| Total hardness | 5 gpg |
|---|---|
| Utility | City of Golden Valley (Joint Water Commission, water from Minneapolis) |
How Golden Valley compares
- Tap water in Golden Valley is 45 % softer than the median of the 1372 cities we track in the United States (9.1 gpg).
- By hardness it ranks 1084 of 1372 in the United States (1 = hardest); 21 % of these cities have softer water.
- In Minnesota it is number 23 of 23 cities; the regional median is 17 gpg.
Ranking of the hardest and softest water in the United States →
What it means at home
- Visible kettle scale every few weeks; vinegar or citric acid is enough.
- Water heater and washing machine: some long-term scale; a scale inhibitor slows it.
- Dishwasher: medium salt setting.
- Softener optional; pays off mainly with a gas boiler or tankless heater.
How much salt will you use for softening?
Optional. A scale inhibitor or a small softener protects the heater; soap savings are modest.
Descale a coffee machine or kettle about every 3 months (typical manufacturer guidance for this hardness).
Estimates for planning, not a quote. Check your appliance manual for exact settings.
Dishwasher setting in Golden Valley
| Brand | Setting for this water |
|---|---|
| Bosch | H00 |
| Miele | 5 °dH |
| AEG / Electrolux | 2 |
| Beko | 2nd |
| Hoover | S1 |
| LG | H1 |
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 Golden Valley water hard or soft?
It is moderately hard: 86 mg/L as CaCO₃ (5 gpg, 4.8 °dH). The usual bands are soft < 60, moderately hard 60–120, hard 120–180 and very hard > 180 mg/L.
Is tap water in Golden Valley 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 Golden Valley water?
5 gpg, equal to 4.8 °dH, 8.6 °fH or 86 mg/L calcium carbonate.
What dishwasher salt setting should I use in Golden Valley?
For 86 mg/L (4.8 °dH) check your manufacturer's table: level 2–3.
Do I need a water softener in Golden Valley?
Not essential; a scale inhibitor protects the heater cheaply.
Source
Source: City of Golden Valley Water System page (2025). Method: figure published by the water supplier. City of Golden Valley Water System page · Outdated figure? Tell us