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Drinking water in 51381

For this postcode the responsible water supplier 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 8 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.

WWR

Energieversorgung Leverkusen GmbH

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

Water hardness
7.8 °dH
Hardness range weich
Key values WWR
Parameter Value Parametric value Share of the parametric value Reference
Nitrate 16,8 mg/l 50 mg/l
34 %
Single value · WWR
Lead < 0,0005 mg/l
below limit of quantification
 10 µg/l
< 5 % *
Single value · WWR
Sulphate 36,2 mg/l 250 mg/l
14 %
Single value · WWR
Sodium 22,4 mg/l 200 mg/l
11 %
Single value · WWR

* 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 (40 — most recent value per parameter)

Chemical parameters (21)

Chemical parameters – WWR
Parameter Value Parametric value Share of the parametric value Reference
1,2-dichloroethane < 0,0002 mg/l
below limit of quantification
 3 µg/l
< 7 % *
Single value · WWR
Antimony < 0,0005 mg/l
below limit of quantification
 5 µg/l
< 10 % *
Single value · WWR
Arsenic < 0,0005 mg/l
below limit of quantification
 10 µg/l
< 5 % *
Single value · WWR
Benzene < 0,0002 mg/l
below limit of quantification
 1 µg/l
< 20 % *
Single value · WWR
Benzo(a)pyrene < 0,000003 mg/l
below limit of quantification
 10 ng/l
< 30 % *
Single value · WWR
Boron 0,05 mg/l 1 mg/l
5 %
Single value · WWR
Bromate < 0,0003 mg/l
below limit of quantification
 10 µg/l
< 3 % *
Single value · WWR
Cadmium < 0,0001 mg/l
below limit of quantification
 3 µg/l
< 3 % *
Single value · WWR
Chromium < 0,0005 mg/l
below limit of quantification
 25 µg/l
< 2 % *
Single value · WWR
Copper <0,02 mg/l
below limit of quantification
 2 mg/l
< 1 % *
Single value · WWR
Cyanide < 0,015 mg/l
below limit of quantification
 50 µg/l
< 30 % *
Single value · WWR
Fluoride 0,06 mg/l 1.5 mg/l
4 %
Single value · WWR
Lead < 0,0005 mg/l
below limit of quantification
 10 µg/l
< 5 % *
Single value · WWR
Mercury < 0,0001 mg/l
below limit of quantification
 1 µg/l
< 10 % *
Single value · WWR
Nickel < 0,001 mg/l
below limit of quantification
 20 µg/l
< 5 % *
Single value · WWR
Nitrate 16,8 mg/l 50 mg/l
34 %
Single value · WWR
Selenium < 0,0005 mg/l
below limit of quantification
 10 µg/l
< 5 % *
Single value · WWR
Tetrachloroethene < 0,00005 mg/l
below limit of quantification
 — — Single value · WWR
Trichloroethene 0,00005 mg/l — — Single value · WWR
Trihalomethanes — Total 0,0005 mg/l 50 µg/l
1 %
Single value · WWR
Uranium < 0,0001 mg/l
below limit of quantification
 10 µg/l
< 1 % *
Single value · WWR

* 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 (12)

Indicator parameters – WWR
Parameter Value Parametric value Share of the parametric value Reference
Aluminium < 0,04 mg/l
below limit of quantification
 0.2 mg/l
< 20 % *
Single value · WWR
Ammonium < 0,05 mg/l
below limit of quantification
 0.5 mg/l
< 10 % *
Single value · WWR
Chloride 31,2 mg/l 250 mg/l
12 %
Single value · WWR
Colour < 0,1 m-1
below limit of quantification
 0.5 m⁻¹ — Single value · WWR
Conductivity (25 °C) 400 µS/cm 2,790 µS/cm — Single value · WWR
Manganese < 0,001 mg/l
below limit of quantification
 50 µg/l
< 2 % *
Single value · WWR
pH 7,88 6,5–9,5 — Single value · WWR
Sodium 22,4 mg/l 200 mg/l
11 %
Single value · WWR
Sulphate 36,2 mg/l 250 mg/l
14 %
Single value · WWR
Threshold odour number (TON) 1 — — Single value · WWR
Total organic carbon (TOC) 0,54 mg/l ohne anormale Veränderung — Single value · WWR
Turbidity 0,13 NTU 1 NTU — Single value · WWR

* 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 (7)

Further parameters – WWR
Parameter Value Parametric value Share of the parametric value Reference
Acid capacity to pH 4.3 1,92 mmol/l — — Single value · WWR
Calcium 41,7 mg/l — — Single value · WWR
Hardness range (WRMG) weich — — Single value · WWR
Magnesium 8,6 mg/l — — Single value · WWR
Potassium 3,1 mg/l — — Single value · WWR
Sum of alkaline earth metals 1,40 mmol/l — — Single value · WWR
Total hardness 7,8 dHº — — Single value · WWR

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://evl-leverkusen.de/wp-content/uploads/2025/03/Wasseranalyse-2025.pdf · Stand: Februar 2025 · retrieved on 11/07/2026
Show 8 more supply zones in this postcode

FWGD

Energieversorgung Leverkusen GmbH

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

Water hardness
5.4 °dH
Hardness range weich
Key values FWGD
Parameter Value Parametric value Share of the parametric value Reference
Nitrate 10,7 mg/l 50 mg/l
21 %
Single value · FWGD
Lead < 0,0005 mg/l
below limit of quantification
 10 µg/l
< 5 % *
Single value · FWGD
Sulphate 13,4 mg/l 250 mg/l
5 %
Single value · FWGD
Sodium 5,2 mg/l 200 mg/l
3 %
Single value · FWGD

* 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 (40 — most recent value per parameter)

Chemical parameters (21)

Chemical parameters – FWGD
Parameter Value Parametric value Share of the parametric value Reference
1,2-dichloroethane < 0,0002 mg/l
below limit of quantification
 3 µg/l
< 7 % *
Single value · FWGD
Antimony < 0,0005 mg/l
below limit of quantification
 5 µg/l
< 10 % *
Single value · FWGD
Arsenic < 0,0005 mg/l
below limit of quantification
 10 µg/l
< 5 % *
Single value · FWGD
Benzene < 0,0002 mg/l
below limit of quantification
 1 µg/l
< 20 % *
Single value · FWGD
Benzo(a)pyrene < 0,000003 mg/l
below limit of quantification
 10 ng/l
< 30 % *
Single value · FWGD
Boron < 0,02 mg/l
below limit of quantification
 1 mg/l
< 2 % *
Single value · FWGD
Bromate < 0,0003 mg/l
below limit of quantification
 10 µg/l
< 3 % *
Single value · FWGD
Cadmium < 0,0001 mg/l
below limit of quantification
 3 µg/l
< 3 % *
Single value · FWGD
Chromium < 0,0005 mg/l
below limit of quantification
 25 µg/l
< 2 % *
Single value · FWGD
Copper < 0,02 mg/l
below limit of quantification
 2 mg/l
< 1 % *
Single value · FWGD
Cyanide < 0,015 mg/l
below limit of quantification
 50 µg/l
< 30 % *
Single value · FWGD
Fluoride < 0,05 mg/l
below limit of quantification
 1.5 mg/l
< 3 % *
Single value · FWGD
Lead < 0,0005 mg/l
below limit of quantification
 10 µg/l
< 5 % *
Single value · FWGD
Mercury < 0,0001 mg/l
below limit of quantification
 1 µg/l
< 10 % *
Single value · FWGD
Nickel < 0,001 mg/l
below limit of quantification
 20 µg/l
< 5 % *
Single value · FWGD
Nitrate 10,7 mg/l 50 mg/l
21 %
Single value · FWGD
Selenium < 0,0005 mg/l
below limit of quantification
 10 µg/l
< 5 % *
Single value · FWGD
Tetrachloroethene < 0,00005 mg/l
below limit of quantification
 — — Single value · FWGD
Trichloroethene < 0,00005 mg/l
below limit of quantification
 — — Single value · FWGD
Trihalomethanes — Total n.b. mg/l
not determined
 50 µg/l — Single value · FWGD
Uranium < 0,0001 mg/l
below limit of quantification
 10 µg/l
< 1 % *
Single value · FWGD

* 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 (12)

Indicator parameters – FWGD
Parameter Value Parametric value Share of the parametric value Reference
Aluminium < 0,04 mg/l
below limit of quantification
 0.2 mg/l
< 20 % *
Single value · FWGD
Ammonium < 0,05 mg/l
below limit of quantification
 0.5 mg/l
< 10 % *
Single value · FWGD
Chloride 9,3 mg/l 250 mg/l
4 %
Single value · FWGD
Colour < 0,1 m-1
below limit of quantification
 0.5 m⁻¹ — Single value · FWGD
Conductivity (25 °C) 229 µS/cm 2,790 µS/cm — Single value · FWGD
Manganese < 0,001 mg/l
below limit of quantification
 50 µg/l
< 2 % *
Single value · FWGD
pH 7,98 6,5–9,5 — Single value · FWGD
Sodium 5,2 mg/l 200 mg/l
3 %
Single value · FWGD
Sulphate 13,4 mg/l 250 mg/l
5 %
Single value · FWGD
Threshold odour number (TON) 1 — — Single value · FWGD
Total organic carbon (TOC) 0,78 mg/l ohne anormale Veränderung — Single value · FWGD
Turbidity 0,08 NTU 1 NTU — Single value · FWGD

* 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 (7)

Further parameters – FWGD
Parameter Value Parametric value Share of the parametric value Reference
Acid capacity to pH 4.3 1,57 mmol/l — — Single value · FWGD
Calcium 33,4 mg/l — — Single value · FWGD
Hardness range (WRMG) weich — — Single value · FWGD
Magnesium 3,4 mg/l — — Single value · FWGD
Potassium 1,5 mg/l — — Single value · FWGD
Sum of alkaline earth metals 0,97 mmol/l — — Single value · FWGD
Total hardness 5,4 dHº — — Single value · FWGD

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://evl-leverkusen.de/wp-content/uploads/2025/03/Wasseranalyse-2025.pdf · Stand: Februar 2025 · retrieved on 11/07/2026

WVV

Energieversorgung Leverkusen GmbH

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

Water hardness
4.5 °dH
Hardness range weich
Key values WVV
Parameter Value Parametric value Share of the parametric value Reference
Nitrate 11,1 mg/l 50 mg/l
22 %
Single value · WVV
Lead < 0,0005 mg/l
below limit of quantification
 10 µg/l
< 5 % *
Single value · WVV
Sulphate 13,4 mg/l 250 mg/l
5 %
Single value · WVV
Sodium 5,2 mg/l 200 mg/l
3 %
Single value · WVV

* 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 (40 — most recent value per parameter)

Chemical parameters (21)

Chemical parameters – WVV
Parameter Value Parametric value Share of the parametric value Reference
1,2-dichloroethane < 0,0002 mg/l
below limit of quantification
 3 µg/l
< 7 % *
Single value · WVV
Antimony < 0,0005 mg/l
below limit of quantification
 5 µg/l
< 10 % *
Single value · WVV
Arsenic < 0,0005 mg/l
below limit of quantification
 10 µg/l
< 5 % *
Single value · WVV
Benzene < 0,0002 mg/l
below limit of quantification
 1 µg/l
< 20 % *
Single value · WVV
Benzo(a)pyrene <0,000003 mg/l
below limit of quantification
 10 ng/l
< 30 % *
Single value · WVV
Boron < 0,02 mg/l
below limit of quantification
 1 mg/l
< 2 % *
Single value · WVV
Bromate < 0,0003 mg/l
below limit of quantification
 10 µg/l
< 3 % *
Single value · WVV
Cadmium < 0,0001 mg/l
below limit of quantification
 3 µg/l
< 3 % *
Single value · WVV
Chromium < 0,0005 mg/l
below limit of quantification
 25 µg/l
< 2 % *
Single value · WVV
Copper < 0,02 mg/l
below limit of quantification
 2 mg/l
< 1 % *
Single value · WVV
Cyanide < 0,015 mg/l
below limit of quantification
 50 µg/l
< 30 % *
Single value · WVV
Fluoride < 0,05 mg/l
below limit of quantification
 1.5 mg/l
< 3 % *
Single value · WVV
Lead < 0,0005 mg/l
below limit of quantification
 10 µg/l
< 5 % *
Single value · WVV
Mercury < 0,0001 mg/l
below limit of quantification
 1 µg/l
< 10 % *
Single value · WVV
Nickel < 0,001 mg/l
below limit of quantification
 20 µg/l
< 5 % *
Single value · WVV
Nitrate 11,1 mg/l 50 mg/l
22 %
Single value · WVV
Selenium < 0,0005 mg/l
below limit of quantification
 10 µg/l
< 5 % *
Single value · WVV
Tetrachloroethene < 0,00005 mg/l
below limit of quantification
 — — Single value · WVV
Trichloroethene < 0,00005 mg/l
below limit of quantification
 — — Single value · WVV
Trihalomethanes — Total n.b. mg/l
not determined
 50 µg/l — Single value · WVV
Uranium < 0,0001 mg/l
below limit of quantification
 10 µg/l
< 1 % *
Single value · WVV

* 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 (12)

Indicator parameters – WVV
Parameter Value Parametric value Share of the parametric value Reference
Aluminium < 0,04 mg/l
below limit of quantification
 0.2 mg/l
< 20 % *
Single value · WVV
Ammonium < 0,05 mg/l
below limit of quantification
 0.5 mg/l
< 10 % *
Single value · WVV
Chloride 9,5 mg/l 250 mg/l
4 %
Single value · WVV
Colour < 0,1 m-1
below limit of quantification
 0.5 m⁻¹ — Single value · WVV
Conductivity (25 °C) 196 µS/cm 2,790 µS/cm — Single value · WVV
Manganese < 0,001 mg/l
below limit of quantification
 50 µg/l
< 2 % *
Single value · WVV
pH 8,17 6,5–9,5 — Single value · WVV
Sodium 5,2 mg/l 200 mg/l
3 %
Single value · WVV
Sulphate 13,4 mg/l 250 mg/l
5 %
Single value · WVV
Threshold odour number (TON) 1 — — Single value · WVV
Total organic carbon (TOC) 0,60 mg/l ohne anormale Veränderung — Single value · WVV
Turbidity 0,07 NTU 1 NTU — Single value · WVV

* 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 (7)

Further parameters – WVV
Parameter Value Parametric value Share of the parametric value Reference
Acid capacity to pH 4.3 1,22 mmol/l — — Single value · WVV
Calcium 26,4 mg/l — — Single value · WVV
Hardness range (WRMG) weich — — Single value · WVV
Magnesium 3,4 mg/l — — Single value · WVV
Potassium 1,5 mg/l — — Single value · WVV
Sum of alkaline earth metals 0,80 mmol/l — — Single value · WVV
Total hardness 4,5 dHº — — Single value · WVV

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://evl-leverkusen.de/wp-content/uploads/2025/03/Wasseranalyse-2025.pdf · Stand: Februar 2025 · retrieved on 11/07/2026

Wasserwerk Schürholz

Wasserversorgungsverband Rhein-Wupper

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

Key values Wasserwerk Schürholz
Parameter Value Parametric value Share of the parametric value Reference
Nitrate < 12 Milligramm pro Liter
below limit of quantification
 50 mg/l — Single value
Show all recorded parameters (2 — most recent value per parameter)

Chemical parameters (2)

Chemical parameters – Wasserwerk Schürholz
Parameter Value Parametric value Share of the parametric value Reference
Nitrate < 12 Milligramm pro Liter
below limit of quantification
 50 mg/l — Single value
Uranium < 0,1 Mikrogramm pro Liter Wasser
below limit of quantification
 10 µg/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://www.wvv-rhein-wupper.de/qualitaet/ · 24.02.2026 · retrieved on 11/07/2026

Benrath

WSW Wuppertal

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

Water hardness
11.3 °dH
Hardness range mittel
Key values Benrath
Parameter Value Parametric value Share of the parametric value Reference
Sum of PFAS 0,000005 mg/l — — Mean · Benrath
Nitrate 22 mg/l 50 mg/l
44 %
Mean · Benrath
Lead <0,0002 mg/l
below limit of quantification
 10 µg/l
< 2 % *
Mean · Benrath
Escherichia coli (E. coli) 0 Anz./100 ml 0/100 ml — Single value · Benrath
Sulphate 70 mg/l 250 mg/l
28 %
Mean · Benrath
Sodium 39,1 mg/l 200 mg/l
20 %
Mean · Benrath

* 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 (68 — most recent value per parameter)

Microbiology (3)

Microbiology – Benrath
Parameter Value Parametric value Share of the parametric value Reference
Escherichia coli (E. coli) 0 Anz./100 ml 0/100 ml — Single value · Benrath
Intestinal enterococci 0 Anz./100 ml 0/100 ml — Single value · Benrath
Somatic coliphages <1 PFU/100 ml
below limit of quantification
 50/100 ml
UBA guide value
 — Mean · Benrath

For trifluoroacetic acid (TFA), the German Drinking Water Ordinance does not specify a parametric value. The comparison is therefore made with the guide value of 60 µg/l issued by the Umweltbundesamt, which has replaced the earlier health-related guidance value of 3 µg/l. A guide value is not a legal maximum but a health-related classification.

Chemical parameters (30)

Chemical parameters – Benrath
Parameter Value Parametric value Share of the parametric value Reference
1,2-dichloroethane <0,0001 mg/l
below limit of quantification
 3 µg/l
< 3 % *
Mean · Benrath
Antimony <0,0001 mg/l
below limit of quantification
 5 µg/l
< 2 % *
Mean · Benrath
Arsenic 0,0006 mg/l 10 µg/l
6 %
Mean · Benrath
Benzene <0,0001 mg/l
below limit of quantification
 1 µg/l
< 10 % *
Mean · Benrath
Benzo(a)pyrene <0,000010 mg/l
below limit of quantification
 10 ng/l
< 100 % *
Mean · Benrath
Bisphenol A <0,00003 mg/l
below limit of quantification
 2.5 µg/l
< 1 % *
Mean · Benrath
Boron 0,039 mg/l 1 mg/l
4 %
Mean · Benrath
Bromate <0,0005 mg/l
below limit of quantification
 10 µg/l
< 5 % *
Mean · Benrath
Cadmium <0,0001 mg/l
below limit of quantification
 3 µg/l
< 3 % *
Mean · Benrath
Chlorate - mg/l
not determined
 70 µg/l — Mean · Benrath
Chlorite - mg/l
not determined
 0.2 mg/l — Mean · Benrath
Chromium 0,0005 mg/l 25 µg/l
2 %
Mean · Benrath
Copper <0,001 mg/l
below limit of quantification
 2 mg/l
< < 0.1 % *
Mean · Benrath
Cyanide <0,005 mg/l
below limit of quantification
 50 µg/l
< 10 % *
Mean · Benrath
Fluoride <0,20 mg/l
below limit of quantification
 1.5 mg/l
< 13 % *
Mean · Benrath
Haloacetic acids (HAA) n. b. mg/l
not determined
 — — Mean · Benrath
Lead <0,0002 mg/l
below limit of quantification
 10 µg/l
< 2 % *
Mean · Benrath
Mercury <0,00005 mg/l
below limit of quantification
 1 µg/l
< 5 % *
Mean · Benrath
Microcystin-LR <0,00005 mg/l
below limit of quantification
 — — Mean · Benrath
Nickel <0,0004 mg/l
below limit of quantification
 20 µg/l
< 2 % *
Mean · Benrath
Nitrate 22 mg/l 50 mg/l
44 %
Mean · Benrath
Nitrite <0,03 mg/l
below limit of quantification
 0.5 mg/l
< 6 % *
Mean · Benrath
Pesticides n. b. mg/l
not determined
 0.1 µg/l — Mean · Benrath
Pesticides — Total n. b. mg/l
not determined
 0.5 µg/l — Mean · Benrath
Polycyclic aromatic hydrocarbons n.b. mg/l
not determined
 0.1 µg/l — Mean · Benrath
Selenium 0,0004 mg/l 10 µg/l
4 %
Mean · Benrath
Tetrachloroethene <0,0001 mg/l
below limit of quantification
 — — Mean · Benrath
Trichloroethene <0,0001 mg/l
below limit of quantification
 — — Mean · Benrath
Trihalomethanes — Total n.b. mg/l
not determined
 50 µg/l — Mean · Benrath
Uranium 0,0005 mg/l 10 µg/l
5 %
Mean · Benrath

* 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.

PFAS (2)

PFAS – Benrath
Parameter Value Parametric value Share of the parametric value Reference
Sum of 4 PFAS <0,000001 mg/l
below limit of quantification
 — — Mean · Benrath
Sum of PFAS 0,000005 mg/l — — Mean · Benrath

Indicator parameters (20)

Indicator parameters – Benrath
Parameter Value Parametric value Share of the parametric value Reference
Aluminium 0,015 mg/l 0.2 mg/l
8 %
Mean · Benrath
Ammonium <0,05 mg/l
below limit of quantification
 0.5 mg/l
< 10 % *
Mean · Benrath
Calcite dissolution capacity -2,39 mg/l CaCO3 5 mg/l CaCO3 — Mean · Benrath
Chloride 69 mg/l 250 mg/l
28 %
Mean · Benrath
Clostridium perfringens (including spores) 0 Anz./100 ml 0/100 ml — Single value · Benrath
Coliform bacteria 0 Anz./100 ml 0/100 ml — Single value · Benrath
Colony count 22 °C 0 KBE/ml ohne anormale Veränderung — Mean · Benrath
Colony count 36 °C 0 KBE/ml ohne anormale Veränderung — Mean · Benrath
Colour <0,10 1/m
below limit of quantification
 0.5 m⁻¹ — Mean · Benrath
Conductivity (25 °C) 608 µS/cm 2,790 µS/cm — Mean · Benrath
Iron <0,020 mg/l
below limit of quantification
 0.2 mg/l
< 10 % *
Mean · Benrath
Manganese <0,005 mg/l
below limit of quantification
 50 µg/l
< 10 % *
Mean · Benrath
Odour o. a. V. - für den Verbraucher annehmbar — Mean · Benrath
pH 7,9 - 6,5–9,5 — Mean · Benrath
Sodium 39,1 mg/l 200 mg/l
20 %
Mean · Benrath
Sulphate 70 mg/l 250 mg/l
28 %
Mean · Benrath
Taste o. a. V. - für den Verbraucher annehmbar — Mean · Benrath
Temperature 13,3 °C — — Mean · Benrath
Total organic carbon (TOC) 0,77 mg/l ohne anormale Veränderung — Mean · Benrath
Turbidity <0,05 NTU
below limit of quantification
 1 NTU — Mean · Benrath

* 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 (13)

Further parameters – Benrath
Parameter Value Parametric value Share of the parametric value Reference
Acid capacity to pH 4.3 2,19 mmol/l — — Mean · Benrath
AOX (adsorbable organically bound halogens) <0,010 mg/l
below limit of quantification
 — — Mean · Benrath
Calcium 62 mg/l — — Mean · Benrath
Carbonate hardness 6,1 °dH — — Mean · Benrath
Dissolved organic carbon (DOC) 0,7 mg/l — — Mean · Benrath
Hardness range (WRMG) mittel — — Mean · Benrath
Magnesium 12 mg/l — — Mean · Benrath
Oxygen 9,6 mg/l — — Mean · Benrath
Phosphate <0,03 mg/l
below limit of quantification
 — — Mean · Benrath
Potassium 4,0 mg/l — — Mean · Benrath
Saturation index 0,13 — — Mean · Benrath
Total hardness 11,3 °dH — — Mean · Benrath
Zinc <0,0020 mg/l
below limit of quantification
 — — Mean · Benrath

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.wuppertal.de/microsite/wasserversorgung/wasserversorgung/index.php · Jahresmittelwerte 2025 · retrieved on 11/07/2026

Dabringhausen

WSW Wuppertal

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

Water hardness
5.1 °dH
Hardness range weich
Key values Dabringhausen
Parameter Value Parametric value Share of the parametric value Reference
Sum of PFAS <0,000001 mg/l
below limit of quantification
 — — Mean · Dabringhausen
Nitrate 7,2 mg/l 50 mg/l
14 %
Mean · Dabringhausen
Lead <0,0002 mg/l
below limit of quantification
 10 µg/l
< 2 % *
Mean · Dabringhausen
Escherichia coli (E. coli) 0 Anz./100 ml 0/100 ml — Single value · Dabringhausen
Sulphate 14 mg/l 250 mg/l
6 %
Mean · Dabringhausen
Sodium 5,4 mg/l 200 mg/l
3 %
Mean · Dabringhausen

* 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 (68 — most recent value per parameter)

Microbiology (3)

Microbiology – Dabringhausen
Parameter Value Parametric value Share of the parametric value Reference
Escherichia coli (E. coli) 0 Anz./100 ml 0/100 ml — Single value · Dabringhausen
Intestinal enterococci 0 Anz./100 ml 0/100 ml — Single value · Dabringhausen
Somatic coliphages <1 PFU/100 ml
below limit of quantification
 50/100 ml
UBA guide value
 — Mean · Dabringhausen

For trifluoroacetic acid (TFA), the German Drinking Water Ordinance does not specify a parametric value. The comparison is therefore made with the guide value of 60 µg/l issued by the Umweltbundesamt, which has replaced the earlier health-related guidance value of 3 µg/l. A guide value is not a legal maximum but a health-related classification.

Chemical parameters (30)

Chemical parameters – Dabringhausen
Parameter Value Parametric value Share of the parametric value Reference
1,2-dichloroethane <0,0001 mg/l
below limit of quantification
 3 µg/l
< 3 % *
Mean · Dabringhausen
Antimony <0,0001 mg/l
below limit of quantification
 5 µg/l
< 2 % *
Mean · Dabringhausen
Arsenic <0,0003 mg/l
below limit of quantification
 10 µg/l
< 3 % *
Mean · Dabringhausen
Benzene <0,0001 mg/l
below limit of quantification
 1 µg/l
< 10 % *
Mean · Dabringhausen
Benzo(a)pyrene <0,000010 mg/l
below limit of quantification
 10 ng/l
< 100 % *
Mean · Dabringhausen
Bisphenol A <0,00003 mg/l
below limit of quantification
 2.5 µg/l
< 1 % *
Mean · Dabringhausen
Boron <0,010 mg/l
below limit of quantification
 1 mg/l
< 1 % *
Mean · Dabringhausen
Bromate <0,0005 mg/l
below limit of quantification
 10 µg/l
< 5 % *
Mean · Dabringhausen
Cadmium <0,0001 mg/l
below limit of quantification
 3 µg/l
< 3 % *
Mean · Dabringhausen
Chlorate - mg/l
not determined
 70 µg/l — Mean · Dabringhausen
Chlorite - mg/l
not determined
 0.2 mg/l — Mean · Dabringhausen
Chromium <0,0005 mg/l
below limit of quantification
 25 µg/l
< 2 % *
Mean · Dabringhausen
Copper <0,0010 mg/l
below limit of quantification
 2 mg/l
< < 0.1 % *
Mean · Dabringhausen
Cyanide <0,005 mg/l
below limit of quantification
 50 µg/l
< 10 % *
Mean · Dabringhausen
Fluoride <0,20 mg/l
below limit of quantification
 1.5 mg/l
< 13 % *
Mean · Dabringhausen
Haloacetic acids (HAA) n. b. mg/l
not determined
 — — Mean · Dabringhausen
Lead <0,0002 mg/l
below limit of quantification
 10 µg/l
< 2 % *
Mean · Dabringhausen
Mercury <0,00005 mg/l
below limit of quantification
 1 µg/l
< 5 % *
Mean · Dabringhausen
Microcystin-LR <0,00005 mg/l
below limit of quantification
 — — Mean · Dabringhausen
Nickel <0,0004 mg/l
below limit of quantification
 20 µg/l
< 2 % *
Mean · Dabringhausen
Nitrate 7,2 mg/l 50 mg/l
14 %
Mean · Dabringhausen
Nitrite <0,03 mg/l
below limit of quantification
 0.5 mg/l
< 6 % *
Mean · Dabringhausen
Pesticides n. b. mg/l
not determined
 0.1 µg/l — Mean · Dabringhausen
Pesticides — Total n. b. mg/l
not determined
 0.5 µg/l — Mean · Dabringhausen
Polycyclic aromatic hydrocarbons n. b. mg/l
not determined
 0.1 µg/l — Mean · Dabringhausen
Selenium <0,0002 mg/l
below limit of quantification
 10 µg/l
< 2 % *
Mean · Dabringhausen
Tetrachloroethene <0,0001 mg/l
below limit of quantification
 — — Mean · Dabringhausen
Trichloroethene <0,0001 mg/l
below limit of quantification
 — — Mean · Dabringhausen
Trihalomethanes — Total n. b. mg/l
not determined
 50 µg/l — Mean · Dabringhausen
Uranium <0,0001 mg/l
below limit of quantification
 10 µg/l
< 1 % *
Mean · Dabringhausen

* 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.

PFAS (2)

PFAS – Dabringhausen
Parameter Value Parametric value Share of the parametric value Reference
Sum of 4 PFAS <0,000001 mg/l
below limit of quantification
 — — Mean · Dabringhausen
Sum of PFAS <0,000001 mg/l
below limit of quantification
 — — Mean · Dabringhausen

Indicator parameters (20)

Indicator parameters – Dabringhausen
Parameter Value Parametric value Share of the parametric value Reference
Aluminium 0,007 mg/l 0.2 mg/l
3 %
Mean · Dabringhausen
Ammonium <0,05 mg/l
below limit of quantification
 0.5 mg/l
< 10 % *
Mean · Dabringhausen
Calcite dissolution capacity 2,07 mg/l CaCO3 5 mg/l CaCO3 — Mean · Dabringhausen
Chloride 8 mg/l 250 mg/l
3 %
Mean · Dabringhausen
Clostridium perfringens (including spores) 0 Anz./100 ml 0/100 ml — Single value · Dabringhausen
Coliform bacteria 0 Anz./100 ml 0/100 ml — Single value · Dabringhausen
Colony count 22 °C 0 KBE/ml ohne anormale Veränderung — Mean · Dabringhausen
Colony count 36 °C 0 KBE/ml ohne anormale Veränderung — Mean · Dabringhausen
Colour <0,10 1/m
below limit of quantification
 0.5 m⁻¹ — Mean · Dabringhausen
Conductivity (25 °C) 211 µS/cm 2,790 µS/cm — Mean · Dabringhausen
Iron <0,020 mg/l
below limit of quantification
 0.2 mg/l
< 10 % *
Mean · Dabringhausen
Manganese <0,005 mg/l
below limit of quantification
 50 µg/l
< 10 % *
Mean · Dabringhausen
Odour o. a. V. - für den Verbraucher annehmbar — Mean · Dabringhausen
pH 8,0 - 6,5–9,5 — Mean · Dabringhausen
Sodium 5,4 mg/l 200 mg/l
3 %
Mean · Dabringhausen
Sulphate 14 mg/l 250 mg/l
6 %
Mean · Dabringhausen
Taste o. a. V. - für den Verbraucher annehmbar — Mean · Dabringhausen
Temperature 7,2 °C — — Mean · Dabringhausen
Total organic carbon (TOC) 1,07 mg/l ohne anormale Veränderung — Mean · Dabringhausen
Turbidity 0,06 NTU 1 NTU — Mean · Dabringhausen

* 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 (13)

Further parameters – Dabringhausen
Parameter Value Parametric value Share of the parametric value Reference
Acid capacity to pH 4.3 1,46 mmol/l — — Mean · Dabringhausen
AOX (adsorbable organically bound halogens) <0,010 mg/l
below limit of quantification
 — — Mean · Dabringhausen
Calcium 31 mg/l — — Mean · Dabringhausen
Carbonate hardness 4,1 °dH — — Mean · Dabringhausen
Dissolved organic carbon (DOC) 1,0 mg/l — — Mean · Dabringhausen
Hardness range (WRMG) weich — — Mean · Dabringhausen
Magnesium 3,5 mg/l — — Mean · Dabringhausen
Oxygen 11,2 mg/l — — Mean · Dabringhausen
Phosphate <0,03 mg/l
below limit of quantification
 — — Mean · Dabringhausen
Potassium 1,6 mg/l — — Mean · Dabringhausen
Saturation index -0,23 — — Mean · Dabringhausen
Total hardness 5,1 °dH — — Mean · Dabringhausen
Zinc <0,0020 mg/l
below limit of quantification
 — — Mean · Dabringhausen

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.wuppertal.de/microsite/wasserversorgung/wasserversorgung/index.php · Jahresmittelwerte 2025 · retrieved on 11/07/2026

Herbringhausen

WSW Wuppertal

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

Water hardness
5.5 °dH
Hardness range weich
Key values Herbringhausen
Parameter Value Parametric value Share of the parametric value Reference
Sum of PFAS <0,000001 mg/l
below limit of quantification
 — — Mean · Herbringhausen
Nitrate 7,1 mg/l 50 mg/l
14 %
Mean · Herbringhausen
Lead <0,0002 mg/l
below limit of quantification
 10 µg/l
< 2 % *
Mean · Herbringhausen
Escherichia coli (E. coli) 0 Anz./100 ml 0/100 ml — Single value · Herbringhausen
Sulphate 11 mg/l 250 mg/l
4 %
Mean · Herbringhausen
Sodium 6,2 mg/l 200 mg/l
3 %
Mean · Herbringhausen

* 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 (68 — most recent value per parameter)

Microbiology (3)

Microbiology – Herbringhausen
Parameter Value Parametric value Share of the parametric value Reference
Escherichia coli (E. coli) 0 Anz./100 ml 0/100 ml — Single value · Herbringhausen
Intestinal enterococci 0 Anz./100 ml 0/100 ml — Single value · Herbringhausen
Somatic coliphages 2 PFU/100 ml 50/100 ml
UBA guide value
 — Mean · Herbringhausen

For trifluoroacetic acid (TFA), the German Drinking Water Ordinance does not specify a parametric value. The comparison is therefore made with the guide value of 60 µg/l issued by the Umweltbundesamt, which has replaced the earlier health-related guidance value of 3 µg/l. A guide value is not a legal maximum but a health-related classification.

Chemical parameters (30)

Chemical parameters – Herbringhausen
Parameter Value Parametric value Share of the parametric value Reference
1,2-dichloroethane <0,0001 mg/l
below limit of quantification
 3 µg/l
< 3 % *
Mean · Herbringhausen
Antimony <0,0001 mg/l
below limit of quantification
 5 µg/l
< 2 % *
Mean · Herbringhausen
Arsenic <0,0003 mg/l
below limit of quantification
 10 µg/l
< 3 % *
Mean · Herbringhausen
Benzene <0,0001 mg/l
below limit of quantification
 1 µg/l
< 10 % *
Mean · Herbringhausen
Benzo(a)pyrene <0,000010 mg/l
below limit of quantification
 10 ng/l
< 100 % *
Mean · Herbringhausen
Bisphenol A <0,00003 mg/l
below limit of quantification
 2.5 µg/l
< 1 % *
Mean · Herbringhausen
Boron <0,010 mg/l
below limit of quantification
 1 mg/l
< 1 % *
Mean · Herbringhausen
Bromate <0,0005 mg/l
below limit of quantification
 10 µg/l
< 5 % *
Mean · Herbringhausen
Cadmium <0,0001 mg/l
below limit of quantification
 3 µg/l
< 3 % *
Mean · Herbringhausen
Chlorate - mg/l
not determined
 70 µg/l — Mean · Herbringhausen
Chlorite - mg/l
not determined
 0.2 mg/l — Mean · Herbringhausen
Chromium <0,0005 mg/l
below limit of quantification
 25 µg/l
< 2 % *
Mean · Herbringhausen
Copper <0,0010 mg/l
below limit of quantification
 2 mg/l
< < 0.1 % *
Mean · Herbringhausen
Cyanide <0,005 mg/l
below limit of quantification
 50 µg/l
< 10 % *
Mean · Herbringhausen
Fluoride <0,20 mg/l
below limit of quantification
 1.5 mg/l
< 13 % *
Mean · Herbringhausen
Haloacetic acids (HAA) n. b. mg/l
not determined
 — — Mean · Herbringhausen
Lead <0,0002 mg/l
below limit of quantification
 10 µg/l
< 2 % *
Mean · Herbringhausen
Mercury <0,00005 mg/l
below limit of quantification
 1 µg/l
< 5 % *
Mean · Herbringhausen
Microcystin-LR <0,00005 mg/l
below limit of quantification
 — — Mean · Herbringhausen
Nickel 0,0005 mg/l 20 µg/l
3 %
Mean · Herbringhausen
Nitrate 7,1 mg/l 50 mg/l
14 %
Mean · Herbringhausen
Nitrite <0,03 mg/l
below limit of quantification
 0.5 mg/l
< 6 % *
Mean · Herbringhausen
Pesticides n. b. mg/l
not determined
 0.1 µg/l — Mean · Herbringhausen
Pesticides — Total n. b. mg/l
not determined
 0.5 µg/l — Mean · Herbringhausen
Polycyclic aromatic hydrocarbons n. b. mg/l
not determined
 0.1 µg/l — Mean · Herbringhausen
Selenium <0,0002 mg/l
below limit of quantification
 10 µg/l
< 2 % *
Mean · Herbringhausen
Tetrachloroethene <0,0001 mg/l
below limit of quantification
 — — Mean · Herbringhausen
Trichloroethene <0,0001 mg/l
below limit of quantification
 — — Mean · Herbringhausen
Trihalomethanes — Total n. b. mg/l
not determined
 50 µg/l — Mean · Herbringhausen
Uranium <0,0001 mg/l
below limit of quantification
 10 µg/l
< 1 % *
Mean · Herbringhausen

* 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.

PFAS (2)

PFAS – Herbringhausen
Parameter Value Parametric value Share of the parametric value Reference
Sum of 4 PFAS <0,000001 mg/l
below limit of quantification
 — — Mean · Herbringhausen
Sum of PFAS <0,000001 mg/l
below limit of quantification
 — — Mean · Herbringhausen

Indicator parameters (20)

Indicator parameters – Herbringhausen
Parameter Value Parametric value Share of the parametric value Reference
Aluminium 0,005 mg/l 0.2 mg/l
3 %
Mean · Herbringhausen
Ammonium <0,05 mg/l
below limit of quantification
 0.5 mg/l
< 10 % *
Mean · Herbringhausen
Calcite dissolution capacity -0,30 mg/l CaCO3 5 mg/l CaCO3 — Mean · Herbringhausen
Chloride 10 mg/l 250 mg/l
4 %
Mean · Herbringhausen
Clostridium perfringens (including spores) 0 Anz./100 ml 0/100 ml — Single value · Herbringhausen
Coliform bacteria 0 Anz./100 ml 0/100 ml — Single value · Herbringhausen
Colony count 22 °C 0 KBE/ml ohne anormale Veränderung — Mean · Herbringhausen
Colony count 36 °C 0 KBE/ml ohne anormale Veränderung — Mean · Herbringhausen
Colour <0,10 1/m
below limit of quantification
 0.5 m⁻¹ — Mean · Herbringhausen
Conductivity (25 °C) 230 µS/cm 2,790 µS/cm — Mean · Herbringhausen
Iron <0,020 mg/l
below limit of quantification
 0.2 mg/l
< 10 % *
Mean · Herbringhausen
Manganese <0,005 mg/l
below limit of quantification
 50 µg/l
< 10 % *
Mean · Herbringhausen
Odour o. a. V. - für den Verbraucher annehmbar — Mean · Herbringhausen
pH 8,2 - 6,5–9,5 — Mean · Herbringhausen
Sodium 6,2 mg/l 200 mg/l
3 %
Mean · Herbringhausen
Sulphate 11 mg/l 250 mg/l
4 %
Mean · Herbringhausen
Taste o. a. V. - für den Verbraucher annehmbar — Mean · Herbringhausen
Temperature 8,7 °C — — Mean · Herbringhausen
Total organic carbon (TOC) 0,95 mg/l ohne anormale Veränderung — Mean · Herbringhausen
Turbidity 0,08 NTU 1 NTU — Mean · Herbringhausen

* 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 (13)

Further parameters – Herbringhausen
Parameter Value Parametric value Share of the parametric value Reference
Acid capacity to pH 4.3 1,65 mmol/l — — Mean · Herbringhausen
AOX (adsorbable organically bound halogens) <0,010 mg/l
below limit of quantification
 — — Mean · Herbringhausen
Calcium 35 mg/l — — Mean · Herbringhausen
Carbonate hardness 4,6 °dH — — Mean · Herbringhausen
Dissolved organic carbon (DOC) 0,9 mg/l — — Mean · Herbringhausen
Hardness range (WRMG) weich — — Mean · Herbringhausen
Magnesium 3,1 mg/l — — Mean · Herbringhausen
Oxygen 10,5 mg/l — — Mean · Herbringhausen
Phosphate <0,03 mg/l
below limit of quantification
 — — Mean · Herbringhausen
Potassium 1,3 mg/l — — Mean · Herbringhausen
Saturation index 0,04 — — Mean · Herbringhausen
Total hardness 5,5 °dH — — Mean · Herbringhausen
Zinc <0,0020 mg/l
below limit of quantification
 — — Mean · Herbringhausen

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.wuppertal.de/microsite/wasserversorgung/wasserversorgung/index.php · Jahresmittelwerte 2025 · retrieved on 11/07/2026

Talsperrenwasser

Energieversorgung Leverkusen GmbH

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

No core values are available for this zone yet.

Talsperrenwasser (FWGD/WVV)

Energieversorgung Leverkusen GmbH

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

No core values are available for this zone yet.

Show all recorded parameters (1 — most recent value per parameter)

Further parameters (1)

Further parameters – Talsperrenwasser (FWGD/WVV)
Parameter Value Parametric value Share of the parametric value Reference
Phosphate <0,05 mg/l
below limit of quantification
 — — Single value · Talsperrenwasser (FWGD/WVV)

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://evl-leverkusen.de/wp-content/uploads/2025/03/Wasseranalyse-2025.pdf · Stand: Februar 2025 · retrieved on 25/07/2026

Frequent questions about postcode 51381

How hard is the water in Postcode 51381?
Energieversorgung Leverkusen GmbH publishes a total hardness of 7.8 °dH for the supply zone WWR (hardness range weich). 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 2025, retrieved on 11/07/2026.
How much nitrate is in the drinking water in Postcode 51381?
Energieversorgung Leverkusen GmbH publishes a nitrate value of 16,8 mg/l for the supply zone WWR. The statutory parametric value is 50 mg/l; the measured value represents 34 % of the parametric value. Basis: Stand: Februar 2025, retrieved on 11/07/2026.
Who supplies the drinking water in Postcode 51381?
Energieversorgung Leverkusen GmbH. The values shown here come from the supply zone WWR 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.