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Drinking water in 57223

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 7 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.

WVS Anlage Reinwasser Breitenbachtalsperre, Keller

Wasserverband Siegen-Wittgenstein

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

Water hardness
4.1 °dH
Hardness range 0,73
Key values WVS Anlage Reinwasser Breitenbachtalsperre, Keller
Parameter Value Parametric value Share of the parametric value Reference
Sum of PFAS n.b. mg/l
not determined
0.1 µg/l Single value
Nitrate 4,1 mg/l 50 mg/l
8 %
Single value
Lead < 0,0003 mg/l
below limit of quantification
10 µg/l
< 3 % *
Single value
Escherichia coli (E. coli) 0 1/100ml 0/100 ml Single value
Sulphate 13,9 mg/l 250 mg/l
6 %
Single value
Sodium 3,6 mg/l 200 mg/l
2 %
Single value

* 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 (92 — most recent value per parameter)

Microbiology (2)

Microbiology – WVS Anlage Reinwasser Breitenbachtalsperre, Keller
Parameter Value Parametric value Share of the parametric value Reference
Escherichia coli (E. coli) 0 1/100ml 0/100 ml Single value
Intestinal enterococci 0 1/100ml 0/100 ml Single value

Chemical parameters (40)

Chemical parameters – WVS Anlage Reinwasser Breitenbachtalsperre, Keller
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 % *
Single value
Antimony < 0,0003 mg/l
below limit of quantification
5 µg/l
< 6 % *
Single value
Arsenic < 0,0003 mg/l
below limit of quantification
10 µg/l
< 3 % *
Single value
Benzene n.n. mg/l
not detectable
1 µg/l Single value
Benzo(a)pyrene < 0,000005 mg/l
below limit of quantification
10 ng/l
< 50 % *
Single value
Benzo(b)fluoranthene < 0,00001 mg/l
below limit of quantification
Single value
Benzo(ghi)perylene < 0,00001 mg/l
below limit of quantification
Single value
Benzo(k)fluoranthene < 0,00001 mg/l
below limit of quantification
Single value
Bisphenol A < 0,0001 mg/l
below limit of quantification
2.5 µg/l
< 4 % *
Single value
Boron 0,0057 mg/l 1 mg/l
0.6 %
Single value
Bromate < 0,005 mg/l
below limit of quantification
10 µg/l
< 50 % *
Single value
Bromodichloromethane < 0,0001 mg/l
below limit of quantification
Single value
Cadmium < 0,0003 mg/l
below limit of quantification
3 µg/l
< 10 % *
Single value
Chlorate < 0,02 mg/l
below limit of quantification
70 µg/l
< 29 % *
Single value
Chlorite 0,11 mg/l 0.2 mg/l
55 %
Single value
Chromium < 0,0003 mg/l
below limit of quantification
25 µg/l
< 1 % *
Single value
Copper < 0,0003 mg/l
below limit of quantification
2 mg/l
< < 0.1 % *
Single value
Cyanide < 0,006 mg/l
below limit of quantification
50 µg/l
< 12 % *
Single value
Dibromoacetic acid < 0,002 mg/l
below limit of quantification
Single value
Dibromochloromethane < 0,0001 mg/l
below limit of quantification
Single value
Dichloroacetic acid < 0,002 mg/l
below limit of quantification
Single value
Epichlorohydrin < 0,00005 mg/l
below limit of quantification
0.1 µg/l
< 50 % *
Single value
Fluoride < 0,05 mg/l
below limit of quantification
1.5 mg/l
< 3 % *
Single value
Haloacetic acids (HAA) n.b. mg/l
not determined
60 µg/l Single value
Indeno(1,2,3-cd)pyrene < 0,00001 mg/l
below limit of quantification
Single value
Lead < 0,0003 mg/l
below limit of quantification
10 µg/l
< 3 % *
Single value
Mercury < 0,0001 mg/l
below limit of quantification
1 µg/l
< 10 % *
Single value
Monobromoacetic acid < 0,002 mg/l
below limit of quantification
Single value
Monochloroacetic acid < 0,002 mg/l
below limit of quantification
Single value
Nickel 0,00035 mg/l 20 µg/l
2 %
Single value
Nitrate 4,1 mg/l 50 mg/l
8 %
Single value
Nitrite < 0,01 mg/l
below limit of quantification
0.5 mg/l
< 2 % *
Single value
Selenium < 0,0005 mg/l
below limit of quantification
10 µg/l
< 5 % *
Single value
Tetrachloroethene < 0,0001 mg/l
below limit of quantification
Single value
Tribromomethane (bromoform) < 0,0001 mg/l
below limit of quantification
Single value
Trichloroacetic acid < 0,002 mg/l
below limit of quantification
Single value
Trichloroethene < 0,0001 mg/l
below limit of quantification
Single value
Trichloromethane (chloroform) < 0,0001 mg/l
below limit of quantification
Single value
Uranium < 0,0003 mg/l
below limit of quantification
10 µg/l
< 3 % *
Single value
Vinyl chloride < 0,0003 mg/l
below limit of quantification
0.5 µg/l
< 60 % *
Single value

* 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 (22)

PFAS – WVS Anlage Reinwasser Breitenbachtalsperre, Keller
Parameter Value Parametric value Share of the parametric value Reference
Perfluorobutane sulfonic acid (PFBS) < 0,000001 mg/l
below limit of quantification
Single value
Perfluorobutanoic acid (PFBA) < 0,000001 mg/l
below limit of quantification
Single value
Perfluorodecane sulfonic acid (PFDS) < 0,000001 mg/l
below limit of quantification
Single value
Perfluorodecanoic acid (PFDA) < 0,000001 mg/l
below limit of quantification
Single value
Perfluorododecane sulfonic acid (PFDoDS) < 0,000001 mg/l
below limit of quantification
Single value
Perfluorododecanoic acid (PFDoDA) < 0,000001 mg/l
below limit of quantification
Single value
Perfluoroheptane sulfonic acid (PFHpS) < 0,000001 mg/l
below limit of quantification
Single value
Perfluoroheptanoic acid (PFHpA) < 0,000001 mg/l
below limit of quantification
Single value
Perfluorohexane sulfonic acid (PFHxS) < 0,000001 mg/l
below limit of quantification
Single value
Perfluorohexanoic acid (PFHxA) < 0,000001 mg/l
below limit of quantification
Single value
Perfluorononane sulfonic acid (PFNS) < 0,000001 mg/l
below limit of quantification
Single value
Perfluorononanoic acid (PFNA) < 0,000001 mg/l
below limit of quantification
Single value
Perfluorooctanesulfonic acid (PFOS) < 0,000001 mg/l
below limit of quantification
Single value
Perfluorooctanoic acid (PFOA) < 0,000001 mg/l
below limit of quantification
Single value
Perfluoropentanesulfonic acid (PFPeS) < 0,000001 mg/l
below limit of quantification
Single value
Perfluoropentanoic acid (PFPeA) < 0,000001 mg/l
below limit of quantification
Single value
Perfluorotridecanesulfonic acid (PFTrDS) < 0,000001 mg/l
below limit of quantification
Single value
Perfluorotridecanoic acid (PFTrDA) < 0,000001 mg/l
below limit of quantification
Single value
Perfluoroundecanesulfonic acid (PFUnDS) < 0,000001 mg/l
below limit of quantification
Single value
Perfluoroundecanoic acid (PFUnDA) < 0,000001 mg/l
below limit of quantification
Single value
Sum of 4 PFAS n.b. mg/l
not determined
Single value
Sum of PFAS n.b. mg/l
not determined
0.1 µg/l Single value

Indicator parameters (20)

Indicator parameters – WVS Anlage Reinwasser Breitenbachtalsperre, Keller
Parameter Value Parametric value Share of the parametric value Reference
Aluminium 0,0039 mg/l 0.2 mg/l
2 %
Single value
Ammonium < 0,05 mg/l
below limit of quantification
0.5 mg/l
< 10 % *
Single value
Calcite dissolution capacity 1,3 mg/l 5 mg/l CaCO3 Single value
Chloride 5,3 mg/l 250 mg/l
2 %
Single value
Clostridium perfringens (including spores) 0 1/100ml 0/100 ml Single value
Coliform bacteria 0 1/100ml 0/100 ml Single value
Colony count 22 °C 0 1/ml ohne anormale Veränderung Single value
Colony count 36 °C 0 1/ml ohne anormale Veränderung Single value
Colour farblos
Unit not stated in the document
0.5 m⁻¹ Single value
Conductivity (25 °C) 169 µS/cm 2,790 µS/cm Single value
Iron < 0,0005 mg/l
below limit of quantification
0.2 mg/l
< 0.2 % *
Single value
Manganese < 0,0003 mg/l
below limit of quantification
50 µg/l
< 0.6 % *
Single value
Odour ohne für den Verbraucher annehmbar Single value
pH 8,27 - 6,5–9,5 Single value
Sodium 3,6 mg/l 200 mg/l
2 %
Single value
Sulphate 13,9 mg/l 250 mg/l
6 %
Single value
Taste ohne für den Verbraucher annehmbar Single value
Temperature 4,1 °C Single value
Total organic carbon (TOC) 2,1 mg/l ohne anormale Veränderung Single value
Turbidity 0,2 FNU 1 NTU Single value

* 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.

Treatment substances (1)

Treatment substances – WVS Anlage Reinwasser Breitenbachtalsperre, Keller
Parameter Value Parametric value Share of the parametric value Reference
Chlorine dioxide < 0,1 mg/l
below limit of quantification
Single value

Further parameters (7)

Further parameters – WVS Anlage Reinwasser Breitenbachtalsperre, Keller
Parameter Value Parametric value Share of the parametric value Reference
Acid capacity to pH 4.3 1,27 mmol/l Single value
Calcium 20 mg/l Single value
Hardness range (WRMG) 0,73 mmol/l Single value
Magnesium 5,7 mg/l Single value
Phosphate < 0,06 mg/l
below limit of quantification
Single value
Potassium 0,49 mg/l Single value
Total hardness 4,11 °dH 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://wvs.nrw/wp-content/uploads/2026/05/AB-Breitenbachtalsperre-Rein-TVO23-20260121_W25-5072-0006.pdf · 04.03.2026 · Probenahme 21.01.2026, 10:40 Uhr; Untersuchungsbeginn 21.01.2026, Untersuchungsende 03.03.2026 · retrieved on 11/07/2026
Show 7 more supply zones in this postcode

WVS Anlage Dreis Tiefenbach Reinwasser Obernautalsperre, Mittelzone, Dauerläufer

Wasserverband Siegen-Wittgenstein

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

Water hardness
4.2 °dH
Hardness range 0,75
Key values WVS Anlage Dreis Tiefenbach Reinwasser Obernautalsperre, Mittelzone, Dauerläufer
Parameter Value Parametric value Share of the parametric value Reference
Nitrate 6,5 mg/l 50 mg/l
13 %
Single value
Lead < 0,0003 mg/l
below limit of quantification
10 µg/l
< 3 % *
Single value
Escherichia coli (E. coli) 0 1/100ml 0/100 ml Single value
Sulphate 12,8 mg/l 250 mg/l
5 %
Single value
Sodium 7 mg/l 200 mg/l
3 %
Single value

* 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 (70 — most recent value per parameter)

Microbiology (2)

Microbiology – WVS Anlage Dreis Tiefenbach Reinwasser Obernautalsperre, Mittelzone, Dauerläufer
Parameter Value Parametric value Share of the parametric value Reference
Escherichia coli (E. coli) 0 1/100ml 0/100 ml Single value
Intestinal enterococci 0 1/100ml 0/100 ml Single value

Chemical parameters (40)

Chemical parameters – WVS Anlage Dreis Tiefenbach Reinwasser Obernautalsperre, Mittelzone, Dauerläufer
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 % *
Single value
Antimony < 0,0003 mg/l
below limit of quantification
5 µg/l
< 6 % *
Single value
Arsenic < 0,0003 mg/l
below limit of quantification
10 µg/l
< 3 % *
Single value
Benzene n.n. mg/l
not detectable
1 µg/l Single value
Benzo(a)pyrene < 0,000005 mg/l
below limit of quantification
10 ng/l
< 50 % *
Single value
Benzo(b)fluoranthene < 0,00001 mg/l
below limit of quantification
Single value
Benzo(ghi)perylene < 0,00001 mg/l
below limit of quantification
Single value
Benzo(k)fluoranthene < 0,00001 mg/l
below limit of quantification
Single value
Bisphenol A < 0,0001 mg/l
below limit of quantification
2.5 µg/l
< 4 % *
Single value
Boron 0,0057 mg/l 1 mg/l
0.6 %
Single value
Bromate < 0,005 mg/l
below limit of quantification
10 µg/l
< 50 % *
Single value
Bromodichloromethane < 0,0001 mg/l
below limit of quantification
Single value
Cadmium < 0,0003 mg/l
below limit of quantification
3 µg/l
< 10 % *
Single value
Chlorate < 0,02 mg/l
below limit of quantification
70 µg/l
< 29 % *
Single value
Chlorite 0,09 mg/l 0.2 mg/l
45 %
Single value
Chromium < 0,0003 mg/l
below limit of quantification
25 µg/l
< 1 % *
Single value
Copper < 0,0003 mg/l
below limit of quantification
2 mg/l
< < 0.1 % *
Single value
Cyanide < 0,006 mg/l
below limit of quantification
50 µg/l
< 12 % *
Single value
Dibromoacetic acid < 0,002 mg/l
below limit of quantification
Single value
Dibromochloromethane < 0,0001 mg/l
below limit of quantification
Single value
Dichloroacetic acid < 0,002 mg/l
below limit of quantification
Single value
Epichlorohydrin < 0,00005 mg/l
below limit of quantification
0.1 µg/l
< 50 % *
Single value
Fluoride < 0,05 mg/l
below limit of quantification
1.5 mg/l
< 3 % *
Single value
Haloacetic acids (HAA) n.b. mg/l
not determined
60 µg/l Single value
Indeno(1,2,3-cd)pyrene < 0,00001 mg/l
below limit of quantification
Single value
Lead < 0,0003 mg/l
below limit of quantification
10 µg/l
< 3 % *
Single value
Mercury < 0,0001 mg/l
below limit of quantification
1 µg/l
< 10 % *
Single value
Monobromoacetic acid < 0,002 mg/l
below limit of quantification
Single value
Monochloroacetic acid < 0,002 mg/l
below limit of quantification
Single value
Nickel 0,0003 mg/l 20 µg/l
1 %
Single value
Nitrate 6,5 mg/l 50 mg/l
13 %
Single value
Nitrite < 0,01 mg/l
below limit of quantification
0.5 mg/l
< 2 % *
Single value
Selenium < 0,0005 mg/l
below limit of quantification
10 µg/l
< 5 % *
Single value
Tetrachloroethene < 0,0001 mg/l
below limit of quantification
Single value
Tribromomethane (bromoform) < 0,0001 mg/l
below limit of quantification
Single value
Trichloroacetic acid < 0,002 mg/l
below limit of quantification
Single value
Trichloroethene < 0,0001 mg/l
below limit of quantification
Single value
Trichloromethane (chloroform) < 0,0001 mg/l
below limit of quantification
Single value
Uranium < 0,0003 mg/l
below limit of quantification
10 µg/l
< 3 % *
Single value
Vinyl chloride < 0,0003 mg/l
below limit of quantification
0.5 µg/l
< 60 % *
Single value

* 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 (20)

Indicator parameters – WVS Anlage Dreis Tiefenbach Reinwasser Obernautalsperre, Mittelzone, Dauerläufer
Parameter Value Parametric value Share of the parametric value Reference
Aluminium 0,012 mg/l 0.2 mg/l
6 %
Single value
Ammonium < 0,05 mg/l
below limit of quantification
0.5 mg/l
< 10 % *
Single value
Calcite dissolution capacity -0,42 mg/l 5 mg/l CaCO3 Single value
Chloride 11 mg/l 250 mg/l
4 %
Single value
Clostridium perfringens (including spores) 0 1/100ml 0/100 ml Single value
Coliform bacteria 0 1/100ml 0/100 ml Single value
Colony count 22 °C 0 1/ml ohne anormale Veränderung Single value
Colony count 36 °C 0 1/ml ohne anormale Veränderung Single value
Colour farblos
Unit not stated in the document
0.5 m⁻¹ Single value
Conductivity (25 °C) 191 µS/cm 2,790 µS/cm Single value
Iron < 0,0005 mg/l
below limit of quantification
0.2 mg/l
< 0.2 % *
Single value
Manganese < 0,0003 mg/l
below limit of quantification
50 µg/l
< 0.6 % *
Single value
Odour ohne für den Verbraucher annehmbar Single value
pH 8,5 - 6,5–9,5 Single value
Sodium 7 mg/l 200 mg/l
3 %
Single value
Sulphate 12,8 mg/l 250 mg/l
5 %
Single value
Taste ohne für den Verbraucher annehmbar Single value
Temperature 5,0 °C Single value
Total organic carbon (TOC) 0,65 mg/l ohne anormale Veränderung Single value
Turbidity < 0,1 FNU
below limit of quantification
1 NTU Single value

* 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.

Treatment substances (1)

Treatment substances – WVS Anlage Dreis Tiefenbach Reinwasser Obernautalsperre, Mittelzone, Dauerläufer
Parameter Value Parametric value Share of the parametric value Reference
Chlorine dioxide < 0,1 mg/l
below limit of quantification
Single value

Further parameters (7)

Further parameters – WVS Anlage Dreis Tiefenbach Reinwasser Obernautalsperre, Mittelzone, Dauerläufer
Parameter Value Parametric value Share of the parametric value Reference
Acid capacity to pH 4.3 1,22 mmol/l Single value
Calcium 23 mg/l Single value
Hardness range (WRMG) 0,75 mmol/l Single value
Magnesium 4,3 mg/l Single value
Phosphate < 0,06 mg/l
below limit of quantification
Single value
Potassium 0,78 mg/l Single value
Total hardness 4,21 °dH 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://wvs.nrw/wp-content/uploads/2026/05/AB-Dreis-Tiefenbach-Rein-TVO23-ohne-PFAS-20260121_W25-5072-0003.pdf · 04.03.2026 · Entnahme 21.01.2026, Untersuchungsbeginn 21.01.2026, Untersuchungsende 03.03.2026 · retrieved on 11/07/2026

WVS Anlage Dreis Tiefenbach Zapfhahn Obernautalsperre, Niederzone, Dauerläufer

Wasserverband Siegen-Wittgenstein

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

Key values WVS Anlage Dreis Tiefenbach Zapfhahn Obernautalsperre, Niederzone, Dauerläufer
Parameter Value Parametric value Share of the parametric value Reference
Sum of PFAS n.b. mg/l
not determined
0.1 µg/l Single value
Show all recorded parameters (22 — most recent value per parameter)

PFAS (22)

PFAS – WVS Anlage Dreis Tiefenbach Zapfhahn Obernautalsperre, Niederzone, Dauerläufer
Parameter Value Parametric value Share of the parametric value Reference
Perfluorobutane sulfonic acid (PFBS) < 0,000001 mg/l
below limit of quantification
Single value
Perfluorobutanoic acid (PFBA) < 0,000001 mg/l
below limit of quantification
Single value
Perfluorodecane sulfonic acid (PFDS) < 0,000001 mg/l
below limit of quantification
Single value
Perfluorodecanoic acid (PFDA) < 0,000001 mg/l
below limit of quantification
Single value
Perfluorododecane sulfonic acid (PFDoDS) < 0,000001 mg/l
below limit of quantification
Single value
Perfluorododecanoic acid (PFDoDA) < 0,000001 mg/l
below limit of quantification
Single value
Perfluoroheptane sulfonic acid (PFHpS) < 0,000001 mg/l
below limit of quantification
Single value
Perfluoroheptanoic acid (PFHpA) < 0,000001 mg/l
below limit of quantification
Single value
Perfluorohexane sulfonic acid (PFHxS) < 0,000001 mg/l
below limit of quantification
Single value
Perfluorohexanoic acid (PFHxA) < 0,000001 mg/l
below limit of quantification
Single value
Perfluorononane sulfonic acid (PFNS) < 0,000001 mg/l
below limit of quantification
Single value
Perfluorononanoic acid (PFNA) < 0,000001 mg/l
below limit of quantification
Single value
Perfluorooctanesulfonic acid (PFOS) < 0,000001 mg/l
below limit of quantification
Single value
Perfluorooctanoic acid (PFOA) < 0,000001 mg/l
below limit of quantification
Single value
Perfluoropentanesulfonic acid (PFPeS) < 0,000001 mg/l
below limit of quantification
Single value
Perfluoropentanoic acid (PFPeA) < 0,000001 mg/l
below limit of quantification
Single value
Perfluorotridecanesulfonic acid (PFTrDS) < 0,000001 mg/l
below limit of quantification
Single value
Perfluorotridecanoic acid (PFTrDA) < 0,000001 mg/l
below limit of quantification
Single value
Perfluoroundecanesulfonic acid (PFUnDS) < 0,000001 mg/l
below limit of quantification
Single value
Perfluoroundecanoic acid (PFUnDA) < 0,000001 mg/l
below limit of quantification
Single value
Sum of 4 PFAS n.b. mg/l
not determined
Single value
Sum of PFAS n.b. mg/l
not determined
0.1 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.

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 25/03/2020. 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.

No core values are available for this zone yet.

Show all recorded parameters (3 — most recent value per parameter)

Treatment substances (2)

Treatment substances – Dreis-Tiefenbach
Parameter Value Parametric value Share of the parametric value Reference
Chlorine dioxide 0,1 mg / l Single value · Dreis-Tiefenbach
Free chlorine <0,1 mg / l
below limit of quantification
Single value · Dreis-Tiefenbach

Further parameters (1)

Further parameters – Dreis-Tiefenbach
Parameter Value Parametric value Share of the parametric value Reference
Calcium -
not determined
Single value · Dreis-Tiefenbach

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.svb-siegen.de/netze/trinkwasseranalyse · 25.03.2020 · Jahresdurchschnittswerte · retrieved on 13/07/2026

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 25/03/2020. 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.

No core values are available for this zone yet.

Show all recorded parameters (3 — most recent value per parameter)

Treatment substances (2)

Treatment substances – Sonstige
Parameter Value Parametric value Share of the parametric value Reference
Chlorine dioxide -
not determined
Single value · Sonstige
Free chlorine 0,1 bis 0,25 mg / l Single value · Sonstige

Further parameters (1)

Further parameters – Sonstige
Parameter Value Parametric value Share of the parametric value Reference
Calcium 25 bis 100 mg / l Single value · Sonstige

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.svb-siegen.de/netze/trinkwasseranalyse · 25.03.2020 · Jahresdurchschnittswerte · retrieved on 13/07/2026

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 25/03/2020. 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.

No core values are available for this zone yet.

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

Indicator parameters (1)

Indicator parameters – siegen gesamt
Parameter Value Parametric value Share of the parametric value Reference
pH 8,30 6,5–9,5 Maximum

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.svb-siegen.de/netze/trinkwasseranalyse · 25.03.2020 · Jahresdurchschnittswerte · retrieved on 13/07/2026

feuerverzinkte Eisenwerkstoffe

Siegener Versorgungsbetriebe (SVB)

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.

Kupfer- und Kupferwerkstoffe

Siegener Versorgungsbetriebe (SVB)

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.

Frequent questions about postcode 57223

How hard is the water in Postcode 57223?
Wasserverband Siegen-Wittgenstein publishes a total hardness of 4.1 °dH for the supply zone WVS Anlage Reinwasser Breitenbachtalsperre, Keller (hardness range 0,73). 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: 04.03.2026, retrieved on 11/07/2026.
How much nitrate is in the drinking water in Postcode 57223?
Wasserverband Siegen-Wittgenstein publishes a nitrate value of 4,1 mg/l for the supply zone WVS Anlage Reinwasser Breitenbachtalsperre, Keller. The statutory parametric value is 50 mg/l; the measured value represents 8 % of the parametric value. Basis: 04.03.2026, retrieved on 11/07/2026.
Who supplies the drinking water in Postcode 57223?
Wasserverband Siegen-Wittgenstein. The values shown here come from the supply zone WVS Anlage Reinwasser Breitenbachtalsperre, Keller 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.