Water hardness in Utena
3.1 mmol/L very hard
Tap water in Utena is very hard: 3.1 mmol/L (310 mg/L · 18.1 gpg · 17.4 °dH).
Source: UAB Utenos vandenys, Utenos m. geriamojo vandens kokybes rodikliai 2025 m. (2025) · data checked 2026-10-22
Range across supply zones: 307–313 mg/L.
UAB Utenos vandenys reports 6.14-6.25 mg-eq/L total hardness for the Utena city network in its 2025 water quality PDF, which is about 3.1 mmol/L or 307-313 mg/L CaCO3. The table header was truncated, so we could not confirm which of the two values belongs to which sampling point. The 2024 report shows nearly the same level, and limescale buildup in kettles and hot-water systems is the expected result.
Lithuanian suppliers report total hardness in mmol/L.
Water data
| Total hardness | 3.1 mmol/L |
|---|---|
| Utility | UAB Utenos vandenys (utenosvandenys.lt) |
How Utena compares
- Tap water in Utena is 9 % harder than the median of the 15 cities we track in Lithuania (2.83 mmol/L).
- By hardness it ranks 5 of 15 in Lithuania (1 = hardest); 71 % of these cities have softer water.
- Nearest city with clearly softer water: Kedainiai, 106 km away (2.45 mmol/L).
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 Utena
| Brand | Setting for this water |
|---|---|
| Bosch | H05 |
| Miele | 17 °dH |
| AEG / Electrolux | 4 |
| Beko | 5th |
| Hoover | S3 |
| LG | H3 |
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 Utena water hard or soft?
It is very hard: 310 mg/L as CaCO₃ (18.1 gpg, 17.4 °dH). The usual bands are soft < 60, moderately hard 60–120, hard 120–180 and very hard > 180 mg/L.
Is tap water in Utena safe to drink?
Hardness is not a health issue; it is about limescale, taste and appliances. Mains water must meet national drinking-water standards. Lithuanian suppliers report total hardness in mmol/L.
How many grains per gallon is Utena water?
18.1 gpg, equal to 17.4 °dH, 31 °fH or 310 mg/L calcium carbonate.
What dishwasher salt setting should I use in Utena?
For 310 mg/L (17.4 °dH) check your manufacturer's table: maximum level (5–7).
Do I need a water softener in Utena?
Yes, unless you are only passing through: scale damages appliances within a few years.
Source
Source: UAB Utenos vandenys, Utenos m. geriamojo vandens kokybes rodikliai 2025 m. (2025). Method: computed from supplier's calcium and magnesium. UAB Utenos vandenys, Utenos m. geriamojo vandens kokybes rodikliai 2025 m. · Outdated figure? Tell us