Who supplies the drinking water in Postcode 04916?

HWAZ Herzberger Wasser- und Abwasserzweckverband. The values shown here come from the supply zone Wasserwerk Herzberg 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 04916

One supply zone, water supplier: HWAZ Herzberger Wasser- und Abwasserzweckverband.

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.

Wasserwerk Herzberg

HWAZ Herzberger Wasser- und Abwasserzweckverband

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 21/02/2025. 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.

Key values Wasserwerk Herzberg
Parameter	Value	Parametric value	Share of the parametric value	Reference
Nitrate	0,0328 mol/m³	50 mg/l	—	Single value
Sulphate	0,0113 mol/m³	250 mg/l	—	Single value
Sodium	0,2379 mol/m³	200 mg/l	—	Single value

Show all recorded parameters (12 — most recent value per parameter)

Chemical parameters (1)

Chemical parameters – Wasserwerk Herzberg
Parameter	Value	Parametric value	Share of the parametric value	Reference
Nitrate	0,0328 mol/m³	50 mg/l	—	Single value

Indicator parameters (6)

Indicator parameters – Wasserwerk Herzberg
Parameter	Value	Parametric value	Share of the parametric value	Reference
Aluminium	<0,03 g/m³ below limit of quantification	0.2 mg/l	—	Single value
Chloride	0,0899 mol/m³	250 mg/l	—	Single value
Conductivity (25 °C)	269 µS/cm	2,790 µS/cm	—	Single value
pH	7,73	6,5–9,5	—	Single value
Sodium	0,2379 mol/m³	200 mg/l	—	Single value
Sulphate	0,0113 mol/m³	250 mg/l	—	Single value

Further parameters (5)

Further parameters – Wasserwerk Herzberg
Parameter	Value	Parametric value	Share of the parametric value	Reference
Acid capacity to pH 4.3	2,77 mol/m³	—	—	Single value
Calcium	1,018 mol/m³	—	—	Single value
Magnesium	0,1592 mol/m³	—	—	Single value
Potassium	0,0302 mol/m³	—	—	Single value
Sum of alkaline earth metals	1,1772 mol/m³	—	—	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://www.hwaz.de/seite/431220/ww-herzberg.html · 21.02.2025 - 1948/02/25 · retrieved on 11/07/2026

Frequent questions about postcode 04916

Who supplies the drinking water in Postcode 04916?: HWAZ Herzberger Wasser- und Abwasserzweckverband. The values shown here come from the supply zone Wasserwerk Herzberg 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.