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Drinking water in Eresing

One supply zone, water supplier: Gemeinde Eresing.

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.

WV Eresing, Brunnen (OKZ: 4110793200007)

Gemeinde Eresing

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 18/08/2025. 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.

Water hardness
21.6 °dH
Hardness range hart
Key values WV Eresing, Brunnen (OKZ: 4110793200007)
Parameter Value Parametric value Share of the parametric value Reference
Nitrate 23 mg/l 50 mg/l
46 %
Single value
Escherichia coli (E. coli) 0 KBE/100ml 0/100 ml Single value
Sulphate 15 mg/l 250 mg/l
6 %
Single value
Sodium 7,9 mg/l 200 mg/l
4 %
Single value
Show all recorded parameters (22 — most recent value per parameter)

Microbiology (1)

Microbiology – WV Eresing, Brunnen (OKZ: 4110793200007)
Parameter Value Parametric value Share of the parametric value Reference
Escherichia coli (E. coli) 0 KBE/100ml 0/100 ml Single value

Chemical parameters (1)

Chemical parameters – WV Eresing, Brunnen (OKZ: 4110793200007)
Parameter Value Parametric value Share of the parametric value Reference
Nitrate 23 mg/l 50 mg/l
46 %
Single value

Indicator parameters (10)

Indicator parameters – WV Eresing, Brunnen (OKZ: 4110793200007)
Parameter Value Parametric value Share of the parametric value Reference
Calcite dissolution capacity -39 mg/l 5 mg/l CaCO3 Single value
Chloride 18,7 mg/l 250 mg/l
7 %
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
Conductivity (25 °C) 732 µS/cm 2,790 µS/cm Single value
pH 7,31 6,5–9,5 Single value
Sodium 7,9 mg/l 200 mg/l
4 %
Single value
Sulphate 15 mg/l 250 mg/l
6 %
Single value
Temperature 13,8 °C Single value

Further parameters (10)

Further parameters – WV Eresing, Brunnen (OKZ: 4110793200007)
Parameter Value Parametric value Share of the parametric value Reference
Acid capacity to pH 4.3 7,00 mmol/l Single value
Base capacity to pH 8.2 0,58 mmol/l Single value
Calcium 101 mg/l Single value
Carbonate hardness 19,5 °dH Single value
Dissolved organic carbon (DOC) 0,8 mg/l Single value
Free carbon dioxide 25 mg/l Single value
Hardness range (WRMG) hart Single value
Magnesium 32,5 mg/l Single value
Potassium 1,1 mg/l Single value
Total hardness 3,86 mmol/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.

Source: https://eresing.de/wp-content/uploads/2025/09/Trinkwasseruntersuchung-EUeV-Brunnen-Eresing-vom-18.08.2025.pdf · 02.09.2025 · Probenahme 18.08.2025 · retrieved on 11/07/2026

Postcodes in this zone: 86922 , 86941

Frequently asked questions about drinking water in Eresing

How hard is the water in Eresing?
Gemeinde Eresing publishes a total hardness of 3,86 mmol/l for the supply zone WV Eresing, Brunnen (OKZ: 4110793200007) — that corresponds to 21.6 °dH. 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: 02.09.2025, retrieved on 11/07/2026.
How much nitrate is in the drinking water in Eresing?
Gemeinde Eresing publishes a nitrate value of 23 mg/l for the supply zone WV Eresing, Brunnen (OKZ: 4110793200007). The statutory parametric value is 50 mg/l; the measured value represents 46 % of the parametric value. Basis: 02.09.2025, retrieved on 11/07/2026.
Who supplies the drinking water in Eresing?
Gemeinde Eresing. The values shown here come from the supply zone WV Eresing, Brunnen (OKZ: 4110793200007) 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.