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Drinking water in Steinburg

One supply zone, water supplier: Wasserwerk Barkhorst (Amt Bad Oldesloe-Land).

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.

Key values Barkhorst
Parameter Value Parametric value Share of the parametric value Reference
Nitrate 1,96 mg/l 50 mg/l
4 %
Single value
Sulphate 3,7 mg/l 250 mg/l
1 %
Single value
Sodium 12,5 mg/l 200 mg/l
6 %
Single value
Show all recorded parameters (16 — most recent value per parameter)

Chemical parameters (3)

Chemical parameters – Barkhorst
Parameter Value Parametric value Share of the parametric value Reference
Fluoride 0,20 mg/l 1.5 mg/l
13 %
Single value
Nitrate 1,96 mg/l 50 mg/l
4 %
Single value
Nitrite < 0,01 mg/l
below limit of quantification
0.5 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.

Indicator parameters (10)

Indicator parameters – Barkhorst
Parameter Value Parametric value Share of the parametric value Reference
Aluminium < 0,01 mg/l
below limit of quantification
0.2 mg/l
< 5 % *
Single value
Ammonium < 0,01 mg/l
below limit of quantification
0.5 mg/l
< 2 % *
Single value
Chloride 12,6 mg/l 250 mg/l
5 %
Single value
Coliform bacteria 0 KBE/100ml 0/100 ml Single value
Colony count 22 °C 0 KBE/ml ohne anormale Veränderung Single value
Colony count 36 °C 0 KBE/ml ohne anormale Veränderung Single value
Iron < 0,01 mg/l
below limit of quantification
0.2 mg/l
< 5 % *
Single value
pH 7,73 6,5–9,5 Single value
Sodium 12,5 mg/l 200 mg/l
6 %
Single value
Sulphate 3,7 mg/l 250 mg/l
1 %
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 (3)

Further parameters – Barkhorst
Parameter Value Parametric value Share of the parametric value Reference
Calcium 75,3 mg/l Single value
Magnesium 8,3 mg/l Single value
Potassium 2,2 mg/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.

Postcodes in this zone: 22964

Frequently asked questions about drinking water in Steinburg

How much nitrate is in the drinking water in Steinburg?
Wasserwerk Barkhorst (Amt Bad Oldesloe-Land) publishes a nitrate value of 1,96 mg/l for the supply zone Barkhorst. The statutory parametric value is 50 mg/l; the measured value represents 4 % of the parametric value. Basis: Publication by the water supplier, retrieved on 25/07/2026.
Who supplies the drinking water in Steinburg?
Wasserwerk Barkhorst (Amt Bad Oldesloe-Land). The values shown here come from the supply zone Barkhorst 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.