Water hardness in Rivne
2.1 mmol/L very hard
Tap water in Rivne is very hard: 2.1 mmol/L (210 mg/L · 12.3 gpg · 11.8 °dH).
Source: Rivneoblvodokanal: Якість води (August 2018) (2018-08) · data checked 2026-10-23
Range across supply zones: 20–290 mg/L.
4 supply zones — hardness varies by neighbourhood; the figure above is the median.
Hardness by district / supply zone
| mmol/L | mg/L | ||
|---|---|---|---|
| VNS Boiarka | 1.4 | 140 | hard |
| VNS Kyivska | 2.9 | 290 | very hard |
| VNS No.1 | 0.2 | 20 | soft |
| VNS No.3 | 2.8 | 280 | very hard |
This figure is over 3 years old; hardness may have changed.
Ukrainian city supply is drawn from rivers and from artesian wells, depending on the town. The figure shown, 210.2 mg/L CaCO₃, is the median across 4 supply zones, which range from 20.0 to 290.2 mg/L, so it depends on which zone your street is in. This figure dates from 2018 and may have changed. Limescale builds quickly in kettles, boilers and washing machines, so frequent descaling or a softener is worth considering.
DSanPiN 2.2.4-171-10 limit: 7 mmol/L (≈ 350 mg/L).
Water data
| Total hardness | 2.1 mmol/L |
|---|---|
| Utility | Rivneoblvodokanal |
How Rivne compares
- Tap water in Rivne is 7 % softer than the median of the 8 cities we track in Ukraine (2.26 mmol/L).
- By hardness it ranks 6 of 8 in Ukraine (1 = hardest); 29 % of these cities have softer water.
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 Rivne
| Brand | Setting for this water |
|---|---|
| Bosch | H03 |
| Miele | 12 °dH |
| AEG / Electrolux | 3 |
| Beko | 3rd |
| Hoover | S2 |
| LG | H2 |
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 Rivne water hard or soft?
It is very hard: 210 mg/L as CaCO₃ (12.3 gpg, 11.8 °dH). The usual bands are soft < 60, moderately hard 60–120, hard 120–180 and very hard > 180 mg/L.
Is tap water in Rivne safe to drink?
Hardness is not a health issue; it is about limescale, taste and appliances. Mains water must meet national drinking-water standards. DSanPiN 2.2.4-171-10 limit: 7 mmol/L (≈ 350 mg/L).
How many grains per gallon is Rivne water?
12.3 gpg, equal to 11.8 °dH, 21 °fH or 210 mg/L calcium carbonate.
What dishwasher salt setting should I use in Rivne?
For 210 mg/L (11.8 °dH) check your manufacturer's table: maximum level (5–7).
Do I need a water softener in Rivne?
Yes, unless you are only passing through: scale damages appliances within a few years.
Source
Source: Rivneoblvodokanal: Якість води (August 2018) (2018-08). Method: older figure, source currently unavailable. Rivneoblvodokanal: Якість води (August 2018) · Outdated figure? Tell us