How hard is the water in Grub SG?

Elektra-und Wasser Korporation Grub SG publishes a total hardness of 32 °fH for the supply zone 9036 Grub — that corresponds to 17.9 °dH. The hardness range is a classification under the German Detergents and Cleaning Products Act (soft below 8,4 °dH, medium 8,4 to 14 °dH, hard above that) and not a quality verdict — it indicates how much calcium and magnesium is dissolved in the water. Basis: 2026, retrieved on 07/08/2026.

How much nitrate is in the drinking water in Grub SG?

Elektra-und Wasser Korporation Grub SG publishes a nitrate value of 9 mg/l for the supply zone 9036 Grub. The statutory parametric value is 40 mg/l; the measured value represents 23 % of the parametric value. Basis: 2026, retrieved on 07/08/2026.

Who supplies the drinking water in Grub SG?

Elektra-und Wasser Korporation Grub SG. The values shown here come from the supply zone 9036 Grub and apply to the water the supplier delivers. What happens between the building connection and the tap — in old lead pipes, for example — is not covered by these analyses; information on that is provided by owners, the health authority or an examination by an accredited laboratory.

Drinking water in Grub SG

One supply zone, water supplier: Elektra-und Wasser Korporation Grub SG.

How to read the share of the parametric value

12 % Share of the parametric value. The proportion of the permitted maximum that the measured value uses — here 12 %, so just over an eighth.

< 10 % * Below the limit of quantification. The substance was not detectable. The mark shows where the detection limit lies relative to the parametric value — the actual share of the parametric value is below that.

Several samples per year: for chemical parameters the mean value is given, for microbiological ones the highest measured value. There the parametric value is zero — a single finding would disappear in the average, and it is precisely that finding which is the information. Which reference applies is stated in the last column of the table.

9036 Grub

Elektra-und Wasser Korporation Grub SG

Assigned via the water supplier — the exact supply zone boundary within the postcode is not yet linked.

Water hardness

17.9 °dH

Hardness range hard

Key values 9036 Grub
Parameter	Value	Parametric value	Share of the parametric value	Reference
Nitrate	9 mg/l	40 mg/l	23 %	Mean · 9036 Grub
Escherichia coli (E. coli)	0 KBE/100ml	0/100 ml	—	Maximum · Median 0 · 9036 Grub
Sulphate	6 mg/l	—	—	Mean · 9036 Grub

Show all recorded parameters (12 — most recent value per parameter)

Microbiology (3)

Microbiology – 9036 Grub
Parameter	Value	Parametric value	Share of the parametric value	Reference
Aerobic mesophilic bacteria	3.5 KBE/ml	300 1/ml	—	Mean · 9036 Grub
Escherichia coli (E. coli)	0 KBE/100ml	0/100 ml	—	Maximum · Median 0 · 9036 Grub
Intestinal enterococci	0 KBE/100ml	0/100 ml	—	Maximum · Median 0 · 9036 Grub

Chemical parameters (1)

Chemical parameters – 9036 Grub
Parameter	Value	Parametric value	Share of the parametric value	Reference
Nitrate	9 mg/l	40 mg/l	23 %	Mean · 9036 Grub

Indicator parameters (5)

Indicator parameters – 9036 Grub
Parameter	Value	Parametric value	Share of the parametric value	Reference
Chloride	12 mg/l	—	—	Mean · 9036 Grub
Conductivity (25 °C)	598 µS/cm	—	—	Mean · 9036 Grub
Sulphate	6 mg/l	—	—	Mean · 9036 Grub
Temperature	12.5 °C	—	—	Mean · 9036 Grub
Turbidity	0.1 TE/F	—	—	Mean · 9036 Grub

Further parameters (3)

Further parameters – 9036 Grub
Parameter	Value	Parametric value	Share of the parametric value	Reference
Calcium	105 mg/l	—	—	Mean · 9036 Grub
Magnesium	13 mg/l	—	—	Mean · 9036 Grub
Total hardness	32 °fH	—	—	Mean · 9036 Grub

Values taken unchanged from the publications linked below — for each parameter the most recent recorded value. „—" in the parametric value column: no currently valid legal parametric value is stored in our database for this parameter; the parameter register with all parametric values is being expanded continuously.

Source: https://trinkwasser.ch/de/versorger/1388/elektra-und-wasser-korporation-grub-sg/3654/9036-grub · 2026 · 2026 · retrieved on 07/08/2026

Postcodes in this zone: 9036

Frequently asked questions about drinking water in Grub SG

How hard is the water in Grub SG?: Elektra-und Wasser Korporation Grub SG publishes a total hardness of 32 °fH for the supply zone 9036 Grub — that corresponds to 17.9 °dH. The hardness range is a classification under the German Detergents and Cleaning Products Act (soft below 8,4 °dH, medium 8,4 to 14 °dH, hard above that) and not a quality verdict — it indicates how much calcium and magnesium is dissolved in the water. Basis: 2026, retrieved on 07/08/2026.
How much nitrate is in the drinking water in Grub SG?: Elektra-und Wasser Korporation Grub SG publishes a nitrate value of 9 mg/l for the supply zone 9036 Grub. The statutory parametric value is 40 mg/l; the measured value represents 23 % of the parametric value. Basis: 2026, retrieved on 07/08/2026.
Who supplies the drinking water in Grub SG?: Elektra-und Wasser Korporation Grub SG. The values shown here come from the supply zone 9036 Grub and apply to the water the supplier delivers. What happens between the building connection and the tap — in old lead pipes, for example — is not covered by these analyses; information on that is provided by owners, the health authority or an examination by an accredited laboratory.

General questions — how current the data is, limit of quantification, parametric values, who is behind this site — are answered under Questions & answers.