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Drinking water in Ahrensbök

One supply zone, water supplier: ZVO Energie GmbH.

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.

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

Water hardness
19.8 °dH
Hardness range hard
Key values Ahrensbök
Parameter Value Parametric value Share of the parametric value Reference
Nitrate 1,34 mg/l 50 mg/l
3 %
Maximum · Ahrensbök
Lead < 0,001 mg/l
below limit of quantification
10 µg/l
< 10 % *
Maximum · Ahrensbök
Sulphate 61,9 mg/l 250 mg/l
25 %
Maximum · Ahrensbök
Sodium 38,6 mg/l 200 mg/l
19 %
Maximum · Ahrensbök

* 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 (18 — most recent value per parameter)

Chemical parameters (5)

Chemical parameters – Ahrensbök
Parameter Value Parametric value Share of the parametric value Reference
Fluoride 0,26 mg/l 1.5 mg/l
17 %
Maximum · Ahrensbök
Lead < 0,001 mg/l
below limit of quantification
10 µg/l
< 10 % *
Maximum · Ahrensbök
Nickel 0,001 mg/l 20 µg/l
5 %
Maximum · Ahrensbök
Nitrate 1,34 mg/l 50 mg/l
3 %
Maximum · Ahrensbök
Nitrite 0,02 mg/l 0.5 mg/l
4 %
Maximum · Ahrensbök

* 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 (8)

Indicator parameters – Ahrensbök
Parameter Value Parametric value Share of the parametric value Reference
Chloride 43,5 mg/l 250 mg/l
17 %
Maximum · Ahrensbök
Colony count 22 °C 1 KBE/ml ohne anormale Veränderung Maximum · Ahrensbök
Colony count 36 °C 1 KBE/ml ohne anormale Veränderung Maximum · Ahrensbök
Conductivity (25 °C) 882 µS/cm 2,790 µS/cm Maximum · Ahrensbök
pH 7,7 ohne 6,5–9,5 Maximum · Ahrensbök
Sodium 38,6 mg/l 200 mg/l
19 %
Maximum · Ahrensbök
Sulphate 61,9 mg/l 250 mg/l
25 %
Maximum · Ahrensbök
Total organic carbon (TOC) 2 mg/l ohne anormale Veränderung Maximum · Ahrensbök

Further parameters (5)

Further parameters – Ahrensbök
Parameter Value Parametric value Share of the parametric value Reference
Calcium 121 mg/l Maximum · Ahrensbök
Hydrogen carbonate 392 mg/l Maximum · Ahrensbök
Magnesium 15 mg/l Maximum · Ahrensbök
Potassium 3,2 mg/l Maximum · Ahrensbök
Total hardness 19,8 °dH Maximum · Ahrensbök

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.

Postcodes in this zone: 23623

Frequently asked questions about drinking water in Ahrensbök

How hard is the water in Ahrensbök?
ZVO Energie GmbH publishes a total hardness of 19.8 °dH for the supply zone Ahrensbök (hardness range hard). 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: 03.06.2026, retrieved on 25/07/2026.
How much nitrate is in the drinking water in Ahrensbök?
ZVO Energie GmbH publishes a nitrate value of 1,34 mg/l for the supply zone Ahrensbök. The statutory parametric value is 50 mg/l; the measured value represents 3 % of the parametric value. Basis: 03.06.2026, retrieved on 25/07/2026.
Who supplies the drinking water in Ahrensbök?
ZVO Energie GmbH. The values shown here come from the supply zone Ahrensbök 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.