How hard is the water in Postcode 6026?

Wasserversorgung Rain publishes a total hardness of 38.6 °fH for the supply zone Chnülle — that corresponds to 21.6 °dH. Hardness indicates how much calcium and magnesium are dissolved in the water. It is not a quality assessment: there is no parametric value for hardness. Basis: Publication by the water supplier, retrieved on 12/08/2026.

How much nitrate is in the drinking water in Postcode 6026?

Wasserversorgung Rain publishes a nitrate value of 33 mg/l for the supply zone Chnülle. The statutory parametric value is 40 mg/l; the measured value represents 83 % of the parametric value. Basis: Publication by the water supplier, retrieved on 12/08/2026.

Who supplies the drinking water in Postcode 6026?

Wasserversorgung Rain. The values shown here come from the supply zone Chnülle 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 6026 (Switzerland)

The drinking water in Postcode 6026 has a total hardness of 21.6 °dH. Nitrate reaches 33 mg/l, the statutory parametric value is 40 mg/l. Measured in supply zone Chnülle of Wasserversorgung Rain, retrieved on 12/08/2026.

For this postcode Wasserversorgung Rain publishes several supply zones. Which of them serves an individual address is not published — below are the values of the zone with the most documented parameters, the remaining 1 underneath.

The values come from the SVGW platform trinkwasser.ch. Water utilities report there voluntarily; the SVGW does not verify the data. For each parameter, the minimum, maximum, average and median of one year are published; hardness in French degrees (°fH). On 20 August 2026 the SVGW objected in writing to the use of this data for maunawai.info: we do not show values from this source, but only name the parameters measured there. Analyses we obtained directly from the water supplier are shown in full.

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.

Chnülle

Wasserversorgung Rain

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

These values are more than a year old. The most recent analysis the water supplier has published for this zone dates from 31/12/2024. We have no newer values — which is why we show the latest available ones rather than none at all. They say nothing about how the water has changed since then.

Water hardness

21.6 °dH

Key values Chnülle
Parameter	Value	Parametric value	Share of the parametric value	Reference
Nitrate	33 mg/l	40 mg/l	83 %	Single value · Chnülle
Escherichia coli (E. coli)	nn KBE/100 ml not detectable	0/100 ml	—	Single value · Chnülle
Sodium	12 mg/l	200 mg/l	6 %	Single value · Chnülle

Show all recorded parameters (21 — most recent value per parameter)

Microbiology (3)

Microbiology – Chnülle
Parameter	Value	Parametric value	Share of the parametric value	Reference
Aerobic mesophilic bacteria	nn KBE/ml not detectable	300 1/ml	—	Single value · Chnülle
Escherichia coli (E. coli)	nn KBE/100 ml not detectable	0/100 ml	—	Single value · Chnülle
Intestinal enterococci	nn KBE/100 ml not detectable	0/100 ml	—	Single value · Chnülle

Chemical parameters (2)

Chemical parameters – Chnülle
Parameter	Value	Parametric value	Share of the parametric value	Reference
Nitrate	33 mg/l	40 mg/l	83 %	Single value · Chnülle
Nitrite	nn mg/l not detectable	0.1 mg/l	—	Single value · Chnülle

Indicator parameters (8)

Indicator parameters – Chnülle
Parameter	Value	Parametric value	Share of the parametric value	Reference
Ammonium	<0.01 mg/l below limit of quantification	0.5 mg/l	< 2 % *	Single value · Chnülle
Chloride	24 mg/l	—	—	Single value · Chnülle
Conductivity (25 °C)	777 μS/cm	—	—	Single value · Chnülle
Oxidisability	1.2 mg/l	—	—	Single value · Chnülle
pH	7.3	—	—	Single value · Chnülle
Sodium	12 mg/l	200 mg/l	6 %	Single value · Chnülle
Total organic carbon (TOC)	0.6 mg/l	—	—	Single value · Chnülle
Turbidity	0.12 NTU	—	—	Single value · Chnülle

* Value below the limit of quantification: the actual share of the parametric value is not known; it lies somewhere below the stated upper bound. The marker shows where the limit of quantification of the measurement lies relative to the parametric value.

Further parameters (8)

Further parameters – Chnülle
Parameter	Value	Parametric value	Share of the parametric value	Reference
Calcium	142 mg/l	—	—	Single value · Chnülle
Carbonate hardness	33.7 °fH	—	—	Single value · Chnülle
Hydrogen carbonate	411 mg/l	—	—	Single value · Chnülle
Magnesium	7.7 mg/l	—	—	Single value · Chnülle
Non-carbonate hardness	4.9 °fH	—	—	Single value · Chnülle
Phosphate	0.003 mg/l	1 mg/l	0.3 %	Single value · Chnülle
Potassium	1.2 mg/l	—	—	Single value · Chnülle
Total hardness	38.6 °fH	—	—	Single value · Chnülle

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://www.rain.ch/wasserversorgung · Juni 2024 · retrieved on 12/08/2026

Show 1 more supply zone in this postcode

Frifag Grossweid 4