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Drinking water in 47669

One supply zone, water supplier: Gemeindewerke Wachtendonk.

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.

Wachtendonk / Wankum

Gemeindewerke Wachtendonk

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

Key values Wachtendonk / Wankum
Parameter Value Parametric value Share of the parametric value Reference
Nitrate <0,5 mg/l
below limit of quantification
50 mg/l
< 1 % *
Single value
Sulphate 9 mg/l 250 mg/l
4 %
Single value
Sodium 6,0 mg/l 200 mg/l
3 %
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 (13 — most recent value per parameter)

Chemical parameters (2)

Chemical parameters – Wachtendonk / Wankum
Parameter Value Parametric value Share of the parametric value Reference
Nitrate <0,5 mg/l
below limit of quantification
50 mg/l
< 1 % *
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 (8)

Indicator parameters – Wachtendonk / Wankum
Parameter Value Parametric value Share of the parametric value Reference
Aluminium <0,010 mg/l
below limit of quantification
0.2 mg/l
< 5 % *
Single value
Ammonium <0,05 mg/l
below limit of quantification
0.5 mg/l
< 10 % *
Single value
Chloride 8,0 mg/l 250 mg/l
3 %
Single value
Iron 0,010 mg/l 0.2 mg/l
5 %
Single value
Manganese <0,002 mg/l
below limit of quantification
50 µg/l
< 4 % *
Single value
pH 8,04 6,5–9,5 Single value
Sodium 6,0 mg/l 200 mg/l
3 %
Single value
Sulphate 9 mg/l 250 mg/l
4 %
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 – Wachtendonk / Wankum
Parameter Value Parametric value Share of the parametric value Reference
Calcium 27 mg/l Single value
Magnesium 2,7 mg/l Single value
Potassium 1,1 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.

Frequent questions about postcode 47669

How much nitrate is in the drinking water in Postcode 47669?
Gemeindewerke Wachtendonk publishes a nitrate value of <0,5 mg/l for the supply zone Wachtendonk / Wankum. The statutory parametric value is 50 mg/l; the measured value lies below it and cannot be specified more precisely below the limit of quantification. Basis: Untersuchungsergebnis vom 03.06.2026, retrieved on 25/07/2026.
Who supplies the drinking water in Postcode 47669?
Gemeindewerke Wachtendonk. The values shown here come from the supply zone Wachtendonk / Wankum 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.