Water hardness in Goch
8.8 °dH hard
Tap water in Goch is hard: 8.8 °dH (158 mg/L · 9.2 gpg · 15.8 °fH).
Source: Stadtwerke Goch, Trinkwasseranalyse für 2025 nach TrinkwV vom 20.06.2023 (2025-10) · data checked 2026-10-23
Range across supply zones: 107–209 mg/L.
2 supply zones — hardness varies by neighbourhood; the figure above is the median.
Hardness by district / supply zone
| °dH | mg/L | ||
|---|---|---|---|
| DEA Behälteranlage Reuterstraße (analysis 12.08.2025) | 11.7 | 209 | very hard |
| Wasserwerk Scheidal (analysis 28.10.2025) | 6 | 107 | moderately hard |
Stadtwerke Goch lists two sources in its 2025 analysis. The Behälteranlage Reuterstraße gives 11.7 °dH (2.08 mmol/l, medium) and the Wasserwerk Scheidal gives 5.99 °dH (1.07 mmol/l, soft). Each is a single sample, so the water in your home depends on which works feeds your street. Ask the utility before choosing a softener.
German law (WRMG) uses 3 bands: soft < 8.4 °dH, medium 8.4–14 °dH, hard > 14 °dH.
Water data
| Total hardness | 8.8 °dH |
|---|---|
| Utility | Stadtwerke Goch GmbH |
How Goch compares
- Tap water in Goch is 23 % softer than the median of the 809 cities we track in Germany (11.5 °dH).
- By hardness it ranks 543 of 809 in Germany (1 = hardest); 33 % of these cities have softer water.
- In Nordrhein-Westfalen it is number 104 of 153 cities; the regional median is 11.3 °dH.
- Nearest city with clearly softer water: Kevelaer, 12 km away (6.8 °dH).
- Nearest city with clearly harder water: Emmerich am Rhein, 19 km away (12.3 °dH).
Ranking of the hardest and softest water in Germany →
What it means at home
- Fast scale on taps, shower screens and kettle; white spots on glassware.
- Water heater: efficiency loss and element failures within years if unprotected.
- Dry skin and dull hair after showering are common.
- Softener recommended; jug or reverse osmosis for drinking.
How much salt will you use for softening?
Recommended, especially with a heater or boiler: scale cuts efficiency and shortens its life.
Descale a coffee machine or kettle about every 2 months (typical manufacturer guidance for this hardness).
Estimates for planning, not a quote. Check your appliance manual for exact settings.
Dishwasher setting in Goch
| Brand | Setting for this water |
|---|---|
| Bosch | H02 |
| Miele | 9 °dH |
| AEG / Electrolux | 2 |
| Beko | 3rd |
| Hoover | S1 |
| 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 Goch water hard or soft?
It is hard: 158 mg/L as CaCO₃ (9.2 gpg, 8.8 °dH). The usual bands are soft < 60, moderately hard 60–120, hard 120–180 and very hard > 180 mg/L.
Is tap water in Goch safe to drink?
Hardness is not a health issue; it is about limescale, taste and appliances. Mains water must meet national drinking-water standards. German law (WRMG) uses 3 bands: soft < 8.4 °dH, medium 8.4–14 °dH, hard > 14 °dH.
How many grains per gallon is Goch water?
9.2 gpg, equal to 8.8 °dH, 15.8 °fH or 158 mg/L calcium carbonate.
What dishwasher salt setting should I use in Goch?
For 158 mg/L (8.8 °dH) check your manufacturer's table: level 4–5.
Do I need a water softener in Goch?
Recommended if you have a water heater, boiler or tankless unit: it saves repairs and detergent.
Source
Source: Stadtwerke Goch, Trinkwasseranalyse für 2025 nach TrinkwV vom 20.06.2023 (2025-10). Method: figure published by the water supplier. Stadtwerke Goch, Trinkwasseranalyse für 2025 nach TrinkwV vom 20.06.2023 · Outdated figure? Tell us