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Drinking water in 72534

One supply zone, water supplier: Stadt Hayingen.

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.

Hayingen / Oberwilzingen

Stadt Hayingen

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 03/07/2025. 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
19.5 °dH
Hardness range hart
Key values Hayingen / Oberwilzingen
Parameter Value Parametric value Share of the parametric value Reference
Nitrate 23 mg/l 50 mg/l
46 %
Single value
Lead < 0,001 mg/l
below limit of quantification
10 µg/l
< 10 % *
Single value
Sodium 4,9 mg/l 200 mg/l
2 %
Single value

* 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.

Show all recorded parameters (22 — most recent value per parameter)

Chemical parameters (8)

Chemical parameters – Hayingen / Oberwilzingen
Parameter Value Parametric value Share of the parametric value Reference
Cadmium < 0,0001 mg/l
below limit of quantification
3 µg/l
< 3 % *
Single value
Copper 0,007 mg/l 2 mg/l
0.4 %
Single value
Lead < 0,001 mg/l
below limit of quantification
10 µg/l
< 10 % *
Single value
Mercury <0,0001 mg/l
below limit of quantification
1 µg/l
< 10 % *
Single value
Nickel < 0,001 mg/l
below limit of quantification
20 µg/l
< 5 % *
Single value
Nitrate 23 mg/l 50 mg/l
46 %
Single value
Nitrite < 0,02 mg/l
below limit of quantification
0.5 mg/l
< 4 % *
Single value
Pesticides — Total nicht berechenbar mg/l
not determined
0.5 µg/l Single value

* 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.

Indicator parameters (9)

Indicator parameters – Hayingen / Oberwilzingen
Parameter Value Parametric value Share of the parametric value Reference
Aluminium < 0,005 mg/l
below limit of quantification
0.2 mg/l
< 3 % *
Single value
Ammonium < 0,01 mg/l
below limit of quantification
0.5 mg/l
< 2 % *
Single value
Chloride 11 mg/l 250 mg/l
4 %
Single value
Conductivity (25 °C) 644 µS/cm 2,790 µS/cm Single value
Iron < 0,005 mg/l
below limit of quantification
0.2 mg/l
< 3 % *
Single value
Manganese < 0,001 mg/l
below limit of quantification
50 µg/l
< 2 % *
Single value
Sodium 4,9 mg/l 200 mg/l
2 %
Single value
Temperature 17,4 °C Single value
Total organic carbon (TOC) 0,7 mg/l ohne anormale Veränderung Single value

* 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 (5)

Further parameters – Hayingen / Oberwilzingen
Parameter Value Parametric value Share of the parametric value Reference
Calcium 114 mg/l Single value
Hardness range (WRMG) hart Single value
Magnesium 15,3 mg/l Single value
Potassium 0,5 mg/l Single value
Total hardness 3,47 mmol/l Single value

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://hayingen.de/media/pages/Hayingen%20Oberwilzingen%20Wasserwerte%202025.pdf · Probe vom 03.07.2025 · retrieved on 14/07/2026

Frequent questions about postcode 72534

How hard is the water in Postcode 72534?
Stadt Hayingen publishes a total hardness of 3,47 mmol/l for the supply zone Hayingen / Oberwilzingen — that corresponds to 19.5 °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: Publication by the water supplier, retrieved on 14/07/2026.
How much nitrate is in the drinking water in Postcode 72534?
Stadt Hayingen publishes a nitrate value of 23 mg/l for the supply zone Hayingen / Oberwilzingen. The statutory parametric value is 50 mg/l; the measured value represents 46 % of the parametric value. Basis: Publication by the water supplier, retrieved on 14/07/2026.
Who supplies the drinking water in Postcode 72534?
Stadt Hayingen. The values shown here come from the supply zone Hayingen / Oberwilzingen 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.