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Drinking water in Röthenbach

One supply zone, water supplier: Stadtwerke Röthenbach a.d. Pegnitz GmbH.

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.

Water hardness
9.8 °dH
Hardness range mittel
Key values roethenbach gesamt
Parameter Value Parametric value Share of the parametric value Reference
Nitrate 3,5 mg/l 50 mg/l
7 %
Median
Lead <0,001 mg/l
below limit of quantification
10 µg/l
< 10 % *
Median
Escherichia coli (E. coli) 0 1/100ml 0/100 ml Median
Sulphate 23 mg/l 250 mg/l
9 %
Median
Sodium 15 mg/l 200 mg/l
8 %
Median

* 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 (44 — most recent value per parameter)

Microbiology (2)

Microbiology – roethenbach gesamt
Parameter Value Parametric value Share of the parametric value Reference
Escherichia coli (E. coli) 0 1/100ml 0/100 ml Median
Intestinal enterococci 0 KBE/100ml 0/100 ml Median

Chemical parameters (20)

Chemical parameters – roethenbach gesamt
Parameter Value Parametric value Share of the parametric value Reference
1,2-dichloroethane <0,2 mg/l
below limit of quantification
3 µg/l cannot be assessed — the limit of quantification of the measurement is above the parametric value Median
Antimony <0,001 mg/l
below limit of quantification
5 µg/l
< 20 % *
Median
Arsenic 0,004 mg/l 10 µg/l
40 %
Median
Benzene <0,2 µg/l
below limit of quantification
1 µg/l
< 20 % *
Median
Boron 0,03 mg/l 1 mg/l
3 %
Median
Cadmium <0,0001 mg/l
below limit of quantification
3 µg/l
< 3 % *
Median
Chromium <0,0005 mg/l
below limit of quantification
25 µg/l
< 2 % *
Median
Copper <0,005 mg/l
below limit of quantification
2 mg/l
< 0.3 % *
Median
Cyanide <0,002 mg/l
below limit of quantification
50 µg/l
< 4 % *
Median
Fluoride 0,20 mg/l 1.5 mg/l
13 %
Median
Lead <0,001 mg/l
below limit of quantification
10 µg/l
< 10 % *
Median
Mercury <0,00003 mg/l
below limit of quantification
1 µg/l
< 3 % *
Median
Nickel <0,002 mg/l
below limit of quantification
20 µg/l
< 10 % *
Median
Nitrate 3,5 mg/l 50 mg/l
7 %
Median
Nitrite <0,030 mg/l
below limit of quantification
0.5 mg/l
< 6 % *
Median
Pesticides — Total n.n. µg/l
not detectable
0.5 µg/l Median
Polycyclic aromatic hydrocarbons n.n. µg/l
not detectable
0.1 µg/l Median
Selenium <0,002 mg/l
below limit of quantification
10 µg/l
< 20 % *
Median
Trihalomethanes — Total n.n. µg/l
not detectable
50 µg/l Median
Uranium 0,001 mg/l 10 µg/l
10 %
Median

* 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 (16)

Indicator parameters – roethenbach gesamt
Parameter Value Parametric value Share of the parametric value Reference
Aluminium <0,02 mg/l
below limit of quantification
0.2 mg/l
< 10 % *
Median
Ammonium <0,05 mg/l
below limit of quantification
0.5 mg/l
< 10 % *
Median
Chloride 23 mg/l 250 mg/l
9 %
Median
Coliform bacteria 0 1/100ml 0/100 ml Median
Colony count 22 °C 0 1/ml ohne anormale Veränderung Median
Colony count 36 °C 0 1/ml ohne anormale Veränderung Median
Colour farblos - 0.5 m⁻¹ Median
Conductivity (25 °C) 430 µS/cm 2,790 µS/cm Median
Iron <0,005 mg/l
below limit of quantification
0.2 mg/l
< 3 % *
Median
Manganese <0,001 mg/l
below limit of quantification
50 µg/l
< 2 % *
Median
pH 8 - 6,5–9,5 Median
Sodium 15 mg/l 200 mg/l
8 %
Median
Sulphate 23 mg/l 250 mg/l
9 %
Median
Temperature 10,8 °C Median
Total organic carbon (TOC) 0,64 mg/l ohne anormale Veränderung Median
Turbidity 0,51 FNU 1 NTU Median

* 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 (6)

Further parameters – roethenbach gesamt
Parameter Value Parametric value Share of the parametric value Reference
Calcium 45 mg/l Median
Hardness range (WRMG) mittel - Median
Magnesium 15 mg/l Median
Oxygen - mg/l
not determined
Median
Potassium 7,7 mg/l Median
Total hardness 9,8 °dH Median

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.stadtwerke-roethenbach.de/wasser-analysewerte.html · Stand: Februar 2026 · Jahresmedianwerte 2026 · retrieved on 13/07/2026

Postcodes in this zone: 88167

Frequently asked questions about drinking water in Röthenbach

How hard is the water in Röthenbach?
Stadtwerke Röthenbach a.d. Pegnitz GmbH publishes a total hardness of 9.8 °dH for the supply zone roethenbach gesamt (hardness range mittel). 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: Stand: Februar 2026, retrieved on 13/07/2026.
How much nitrate is in the drinking water in Röthenbach?
Stadtwerke Röthenbach a.d. Pegnitz GmbH publishes a nitrate value of 3,5 mg/l for the supply zone roethenbach gesamt. The statutory parametric value is 50 mg/l; the measured value represents 7 % of the parametric value. Basis: Stand: Februar 2026, retrieved on 13/07/2026.
Who supplies the drinking water in Röthenbach?
Stadtwerke Röthenbach a.d. Pegnitz GmbH. The values shown here come from the supply zone roethenbach gesamt 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.