Water hardness in Stjørdal
1.8 °dH soft
Tap water in Stjørdal is soft: 1.8 °dH (32 mg/L · 1.9 gpg · 3.2 °fH).
Source: Mattilsynet, Vannverksregisteret – drinking-water analyses (Stjørdal Vannverk), NLOD 2.0 (2019) · data checked 2026-10-21
This figure is over 3 years old; hardness may have changed.
Stjørdal is supplied by its municipal waterworks, which in Norway normally takes surface water from lakes, with some towns using groundwater. Norwegian bedrock is mostly granite and gneiss, which gives soft water. The reported hardness is 32.1 mg/L CaCO₃. This figure dates from 2019 and may have changed. Scale builds up slowly, so a softener is rarely needed.
Norwegian waterworks report hardness in °dH or mg/L Ca; most supplies are very soft.
Water data
| Total hardness | 1.8 °dH |
|---|---|
| Utility | Stjørdal Kommune |
How Stjørdal compares
- Tap water in Stjørdal is 10 % softer than the median of the 89 cities we track in Norway (2 °dH).
- By hardness it ranks 53 of 89 in Norway (1 = hardest); 41 % of these cities have softer water.
- In Trøndelag it is number 10 of 21 cities; the regional median is 1.8 °dH.
- Nearest city with clearly softer water: Verdal, 46 km away (0.8 °dH).
- Nearest city with clearly harder water: Malvik, 9 km away (3 °dH).
Ranking of the hardest and softest water in Norway →
What it means at home
- Little or no limescale in kettles, water heaters or washing machines.
- Soap lathers easily; water does not dry skin or hair.
- Dishwasher: salt setting at minimum or off.
- No softener needed; a jug filter only changes taste.
How much salt will you use for softening?
No. Water this soft does not need softening.
Descale a coffee machine or kettle about every 6 months (typical manufacturer guidance for this hardness).
Estimates for planning, not a quote. Check your appliance manual for exact settings.
Dishwasher setting in Stjørdal
| Brand | Setting for this water |
|---|---|
| Bosch | H00 |
| Miele | 2 °dH |
| AEG / Electrolux | 1 |
| Beko | 1st |
| Hoover | S0 |
| LG | H0 |
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 Stjørdal water hard or soft?
It is soft: 32 mg/L as CaCO₃ (1.9 gpg, 1.8 °dH). The usual bands are soft < 60, moderately hard 60–120, hard 120–180 and very hard > 180 mg/L.
Is tap water in Stjørdal safe to drink?
Hardness is not a health issue; it is about limescale, taste and appliances. Mains water must meet national drinking-water standards. Norwegian waterworks report hardness in °dH or mg/L Ca; most supplies are very soft.
How many grains per gallon is Stjørdal water?
1.9 gpg, equal to 1.8 °dH, 3.2 °fH or 32 mg/L calcium carbonate.
What dishwasher salt setting should I use in Stjørdal?
For 32 mg/L (1.8 °dH) check your manufacturer's table: level 0–1, usually no salt.
Do I need a water softener in Stjørdal?
No. With soft water a softener adds nothing.
Source
Source: Mattilsynet, Vannverksregisteret – drinking-water analyses (Stjørdal Vannverk), NLOD 2.0 (2019). Method: figure published by the water supplier. Mattilsynet, Vannverksregisteret – drinking-water analyses (Stjørdal Vannverk), NLOD 2.0 · Outdated figure? Tell us