Water hardness in Ternitz
15.2 °dH very hard
Tap water in Ternitz is very hard: 15.2 °dH (272 mg/L · 15.9 gpg · 27.2 °fH).
Source: GWLV Ternitz und Umgebung, Wasserbefunde (Abnehmerinformation 2025) (2025-09) · data checked 2026-10-20
Range across supply zones: 44–477 mg/L.
6 supply zones — hardness varies by neighbourhood; the figure above is the median.
Hardness by district / supply zone
| °dH | mg/L | ||
|---|---|---|---|
| Ortsnetz Holzweg | 2.4 | 44 | soft |
| Ortsnetz Penk | 3.2 | 57 | soft |
| Ortsnetz Sieding | 15.4 | 275 | very hard |
| Ortsnetz Stixenstein | 15.1 | 270 | very hard |
| Ortsnetz Ternitz, Wimpassing, Grafenbach-St. Valentin | 26.7 | 477 | very hard |
| Ortsnetz Thann | 18.2 | 325 | very hard |
The Gemeindewasserleitungsverband Ternitz und Umgebung publishes results for six local networks, sampled in June and September 2025. The median is 272.2 mg/L CaCO₃, but the range runs from 43.6 to 476.6 mg/L. Two networks are very soft and one is close to the top of the scale. The value at your tap depends almost entirely on which Ortsnetz you are connected to.
Angabe in °dH; Härtebereiche wie in Deutschland üblich.
Water data
| Total hardness | 15.2 °dH |
|---|---|
| Utility | Gemeindewasserleitungsverband Ternitz und Umgebung (GWLV) |
How Ternitz compares
- Tap water in Ternitz is 9 % harder than the median of the 159 cities we track in Austria (14 °dH).
- By hardness it ranks 45 of 159 in Austria (1 = hardest); 72 % of these cities have softer water.
- In Niederösterreich it is number 32 of 46 cities; the regional median is 15.5 °dH.
- Nearest city with clearly softer water: Neunkirchen, 3 km away (11.1 °dH).
- Nearest city with clearly harder water: Mödling, 45 km away (19.1 °dH).
Ranking of the hardest and softest water in Austria →
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 Ternitz
| Brand | Setting for this water |
|---|---|
| Bosch | H04 |
| Miele | 15 °dH |
| AEG / Electrolux | 4 |
| Beko | 4th |
| Hoover | S2 |
| 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 Ternitz water hard or soft?
It is very hard: 272 mg/L as CaCO₃ (15.9 gpg, 15.2 °dH). The usual bands are soft < 60, moderately hard 60–120, hard 120–180 and very hard > 180 mg/L.
Is tap water in Ternitz safe to drink?
Hardness is not a health issue; it is about limescale, taste and appliances. Mains water must meet national drinking-water standards. Angabe in °dH; Härtebereiche wie in Deutschland üblich.
How many grains per gallon is Ternitz water?
15.9 gpg, equal to 15.2 °dH, 27.2 °fH or 272 mg/L calcium carbonate.
What dishwasher salt setting should I use in Ternitz?
For 272 mg/L (15.2 °dH) check your manufacturer's table: maximum level (5–7).
Do I need a water softener in Ternitz?
Yes, unless you are only passing through: scale damages appliances within a few years.
Source
Source: GWLV Ternitz und Umgebung, Wasserbefunde (Abnehmerinformation 2025) (2025-09). Method: figure published by the water supplier. GWLV Ternitz und Umgebung, Wasserbefunde (Abnehmerinformation 2025) · Outdated figure? Tell us