How much nitrate is in the drinking water in Postcode 49828?

Wasser- und Abwasser-Zweckverband Niedergrafschaft (WAZ) publishes a nitrate value of 8,4 mg/l for the supply zone WWF. The statutory parametric value is 50 mg/l; the measured value represents 17 % of the parametric value. Basis: Publication by the water supplier, retrieved on 11/07/2026.

Who supplies the drinking water in Postcode 49828?

Wasser- und Abwasser-Zweckverband Niedergrafschaft (WAZ). The values shown here come from the supply zone WWF 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 49828

For this postcode Wasser- und Abwasser-Zweckverband Niedergrafschaft (WAZ) 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.

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.

WWF

Wasser- und Abwasser-Zweckverband Niedergrafschaft (WAZ)

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

Key values WWF
Parameter	Value	Parametric value	Share of the parametric value	Reference
Nitrate	8,4 mg/l	50 mg/l	17 %	Single value · WWF
Sulphate	39 mg/l	250 mg/l	16 %	Single value · WWF
Sodium	27 mg/l	200 mg/l	13 %	Single value · WWF

Show all recorded parameters (9 — most recent value per parameter)

Chemical parameters (1)

Chemical parameters – WWF
Parameter	Value	Parametric value	Share of the parametric value	Reference
Nitrate	8,4 mg/l	50 mg/l	17 %	Single value · WWF

Indicator parameters (5)

Indicator parameters – WWF
Parameter	Value	Parametric value	Share of the parametric value	Reference
Chloride	84 mg/l	250 mg/l	34 %	Single value · WWF
pH	8,1	6,5–9,5	—	Single value · WWF
Sodium	27 mg/l	200 mg/l	13 %	Single value · WWF
Sulphate	39 mg/l	250 mg/l	16 %	Single value · WWF
Temperature	14,1 °C	—	—	Single value · WWF

Further parameters (3)

Further parameters – WWF
Parameter	Value	Parametric value	Share of the parametric value	Reference
Calcium	59,0 mg/l	—	—	Single value · WWF
Magnesium	5,5 mg/l	—	—	Single value · WWF
Potassium	1,4 mg/l	—	—	Single value · WWF

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.waz-sw-neuenhaus.de/waz-niedergrafschaft/wasser/wasseranalysen · 2025 · retrieved on 11/07/2026

Show 1 more supply zone in this postcode

WWG