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Drinking water in 53940

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 11 underneath. The water supplier publishes 42 further local networks that cannot be clearly assigned to this postcode — they are listed on the water supplier page.

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.

53925 Kall, WA Knoppen (Entnahmestelle: WA Knoppen Ausgang HB)

Wasserverband Oleftal Hellenthal

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

Water hardness
9.5 °dH
Hardness range mittel
Key values 53925 Kall, WA Knoppen (Entnahmestelle: WA Knoppen Ausgang HB)
Parameter Value Parametric value Share of the parametric value Reference
Nitrate 15 mg/l 50 mg/l
30 %
Single value
Escherichia coli (E. coli) 0 KBE/100 ml 0/100 ml Single value
Sulphate 14 mg/l 250 mg/l
6 %
Single value
Sodium 8,1 mg/l 200 mg/l
4 %
Single value
Show all recorded parameters (60 — most recent value per parameter)

Microbiology (2)

Microbiology – 53925 Kall, WA Knoppen (Entnahmestelle: WA Knoppen Ausgang HB)
Parameter Value Parametric value Share of the parametric value Reference
Escherichia coli (E. coli) 0 KBE/100 ml 0/100 ml Single value
Intestinal enterococci 0 KBE/100 ml 0/100 ml Single value

Chemical parameters (16)

Chemical parameters – 53925 Kall, WA Knoppen (Entnahmestelle: WA Knoppen Ausgang HB)
Parameter Value Parametric value Share of the parametric value Reference
1,1,1-Trichloroethane < 0,0005 mg/l
below limit of quantification
Single value
1,2-dichloroethane < 0,0005 mg/l
below limit of quantification
3 µg/l
< 17 % *
Single value
Benzene < 0,00025 mg/l
below limit of quantification
1 µg/l
< 25 % *
Single value
Boron < 0,02 mg/l
below limit of quantification
1 mg/l
< 2 % *
Single value
Bromate < 0,0025 mg/l
below limit of quantification
10 µg/l
< 25 % *
Single value
Chromium 0,0006 mg/l 25 µg/l
2 %
Single value
Cyanide < 0,005 mg/l
below limit of quantification
50 µg/l
< 10 % *
Single value
Dichloromethane < 0,0005 mg/l
below limit of quantification
Single value
Fluoride < 0,15 mg/l
below limit of quantification
1.5 mg/l
< 10 % *
Single value
Mercury < 0,0001 mg/l
below limit of quantification
1 µg/l
< 10 % *
Single value
Nitrate 15 mg/l 50 mg/l
30 %
Single value
Selenium < 0,001 mg/l
below limit of quantification
10 µg/l
< 10 % *
Single value
Tetrachloroethene < 0,0005 mg/l
below limit of quantification
Single value
Tetrachloromethane < 0,0005 mg/l
below limit of quantification
Single value
Trichloroethene < 0,0005 mg/l
below limit of quantification
Single value
Uranium 0,0008 mg/l 10 µg/l
8 %
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 (14)

PFAS – 53925 Kall, WA Knoppen (Entnahmestelle: WA Knoppen Ausgang HB)
Parameter Value Parametric value Share of the parametric value Reference
Perfluorobutane sulfonic acid (PFBS) < 0,0010 µg/l
below limit of quantification
Single value
Perfluorobutanoic acid (PFBA) < 0,0010 µg/l
below limit of quantification
Single value
Perfluorodecane sulfonic acid (PFDS) < 0,0010 µg/l
below limit of quantification
Single value
Perfluoroheptane sulfonic acid (PFHpS) < 0,0010 µg/l
below limit of quantification
Single value
Perfluoroheptanoic acid (PFHpA) < 0,0010 µg/l
below limit of quantification
Single value
Perfluorohexane sulfonic acid (PFHxS) < 0,0010 µg/l
below limit of quantification
Single value
Perfluorohexanoic acid (PFHxA) < 0,0010 µg/l
below limit of quantification
Single value
Perfluorononane sulfonic acid (PFNS) < 0,0010 µg/l
below limit of quantification
Single value
Perfluorononanoic acid (PFNA) < 0,0010 µg/l
below limit of quantification
Single value
Perfluorooctanesulfonic acid (PFOS) < 0,0010 µg/l
below limit of quantification
Single value
Perfluorooctanoic acid (PFOA) < 0,0010 µg/l
below limit of quantification
Single value
Perfluoropentanesulfonic acid (PFPeS) < 0,0010 µg/l
below limit of quantification
Single value
Perfluoropentanoic acid (PFPeA) < 0,0010 µg/l
below limit of quantification
Single value
Perfluorotridecanesulfonic acid (PFTrDS) < 0,0010 µg/l
below limit of quantification
Single value

Indicator parameters (18)

Indicator parameters – 53925 Kall, WA Knoppen (Entnahmestelle: WA Knoppen Ausgang HB)
Parameter Value Parametric value Share of the parametric value Reference
Aluminium < 0,005 mg/l
below limit of quantification
0.2 mg/l
< 3 % *
Single value
Ammonium < 0,06 mg/l
below limit of quantification
0.5 mg/l
< 12 % *
Single value
Calcite dissolution capacity 2,2 mg/l 5 mg/l CaCO3 Single value
Chloride 22 mg/l 250 mg/l
9 %
Single value
Coliform bacteria 0 KBE/100 ml 0/100 ml Single value
Colony count 22 °C 0 KBE/1 ml ohne anormale Veränderung Single value
Colony count 36 °C 0 KBE/1 ml ohne anormale Veränderung Single value
Conductivity (25 °C) 368 µS/cm 2,790 µS/cm Single value
Iron < 0,005 mg/l
below limit of quantification
0.2 mg/l
< 3 % *
Single value
Manganese < 0,001 mg/l
below limit of quantification
50 µg/l
< 2 % *
Single value
Odour ohne für den Verbraucher annehmbar Single value
pH 7,7 6,5–9,5 Single value
Sodium 8,1 mg/l 200 mg/l
4 %
Single value
Sulphate 14 mg/l 250 mg/l
6 %
Single value
Taste ohne für den Verbraucher annehmbar Single value
Temperature 9,5 °C Single value
Total organic carbon (TOC) < 1,0 mg/l
below limit of quantification
ohne anormale Veränderung Single value
Turbidity < 0,10 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.

Further parameters (10)

Further parameters – 53925 Kall, WA Knoppen (Entnahmestelle: WA Knoppen Ausgang HB)
Parameter Value Parametric value Share of the parametric value Reference
Acid capacity to pH 4.3 2,6 mmol/l Single value
Base capacity to pH 8.2 < 0,1 mmol/l
below limit of quantification
Single value
Calcium 46,0 mg/l Single value
Carbonate hardness 1,31 mmol/l Single value
Free carbon dioxide 5,69 mg/l Single value
Hardness range (WRMG) mittel Single value
Magnesium 13,1 mg/l Single value
Phosphate < 0,6 mg/l
below limit of quantification
Single value
Potassium 1,1 mg/l Single value
Total hardness 1,69 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: http://webspace.wv-oleftal.de/wp-content/uploads/2026/03/wvo-analyse-wa-kall_260302.pdf · 25.03.2026 · Probenahmedatum: 02.03.2026; Prüfzeitraum: 02.03.2026 - 25.03.2026 · retrieved on 11/07/2026
Show 11 more supply zones in this postcode

WW WGA Oleftal (Ausgang Keller) TW

Wasserverband Oleftal Hellenthal

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

Water hardness
4.3 °dH
Hardness range weich
Key values WW WGA Oleftal (Ausgang Keller) TW
Parameter Value Parametric value Share of the parametric value Reference
Nitrate 4,3 mg/l 50 mg/l
9 %
Single value
Escherichia coli (E. coli) 0 KBE/100 ml 0/100 ml Single value
Sulphate 8,2 mg/l 250 mg/l
3 %
Single value
Sodium 5,1 mg/l 200 mg/l
3 %
Single value
Show all recorded parameters (60 — most recent value per parameter)

Microbiology (2)

Microbiology – WW WGA Oleftal (Ausgang Keller) TW
Parameter Value Parametric value Share of the parametric value Reference
Escherichia coli (E. coli) 0 KBE/100 ml 0/100 ml Single value
Intestinal enterococci 0 KBE/100 ml 0/100 ml Single value

Chemical parameters (16)

Chemical parameters – WW WGA Oleftal (Ausgang Keller) TW
Parameter Value Parametric value Share of the parametric value Reference
1,1,1-Trichloroethane < 0,0005 mg/l
below limit of quantification
Single value
1,2-dichloroethane < 0,0005 mg/l
below limit of quantification
3 µg/l
< 17 % *
Single value
Benzene < 0,00025 mg/l
below limit of quantification
1 µg/l
< 25 % *
Single value
Boron < 0,02 mg/l
below limit of quantification
1 mg/l
< 2 % *
Single value
Bromate < 0,0025 mg/l
below limit of quantification
10 µg/l
< 25 % *
Single value
Chromium < 0,0005 mg/l
below limit of quantification
25 µg/l
< 2 % *
Single value
Cyanide < 0,005 mg/l
below limit of quantification
50 µg/l
< 10 % *
Single value
Dichloromethane < 0,0005 mg/l
below limit of quantification
Single value
Fluoride < 0,15 mg/l
below limit of quantification
1.5 mg/l
< 10 % *
Single value
Mercury < 0,0001 mg/l
below limit of quantification
1 µg/l
< 10 % *
Single value
Nitrate 4,3 mg/l 50 mg/l
9 %
Single value
Selenium < 0,001 mg/l
below limit of quantification
10 µg/l
< 10 % *
Single value
Tetrachloroethene < 0,0005 mg/l
below limit of quantification
Single value
Tetrachloromethane < 0,0005 mg/l
below limit of quantification
Single value
Trichloroethene < 0,0005 mg/l
below limit of quantification
Single value
Uranium < 0,0001 mg/l
below limit of quantification
10 µg/l
< 1 % *
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 (14)

PFAS – WW WGA Oleftal (Ausgang Keller) TW
Parameter Value Parametric value Share of the parametric value Reference
Perfluorobutane sulfonic acid (PFBS) < 0,0010 µg/l
below limit of quantification
Single value
Perfluorobutanoic acid (PFBA) < 0,0010 µg/l
below limit of quantification
Single value
Perfluorodecane sulfonic acid (PFDS) < 0,0010 µg/l
below limit of quantification
Single value
Perfluoroheptane sulfonic acid (PFHpS) < 0,0010 µg/l
below limit of quantification
Single value
Perfluoroheptanoic acid (PFHpA) < 0,0010 µg/l
below limit of quantification
Single value
Perfluorohexane sulfonic acid (PFHxS) < 0,0010 µg/l
below limit of quantification
Single value
Perfluorohexanoic acid (PFHxA) < 0,0010 µg/l
below limit of quantification
Single value
Perfluorononane sulfonic acid (PFNS) < 0,0010 µg/l
below limit of quantification
Single value
Perfluorononanoic acid (PFNA) < 0,0010 µg/l
below limit of quantification
Single value
Perfluorooctanesulfonic acid (PFOS) < 0,0010 µg/l
below limit of quantification
Single value
Perfluorooctanoic acid (PFOA) < 0,0010 µg/l
below limit of quantification
Single value
Perfluoropentanesulfonic acid (PFPeS) < 0,0010 µg/l
below limit of quantification
Single value
Perfluoropentanoic acid (PFPeA) < 0,0010 µg/l
below limit of quantification
Single value
Perfluorotridecanesulfonic acid (PFTrDS) < 0,0010 µg/l
below limit of quantification
Single value

Indicator parameters (18)

Indicator parameters – WW WGA Oleftal (Ausgang Keller) TW
Parameter Value Parametric value Share of the parametric value Reference
Aluminium 0,019 mg/l 0.2 mg/l
10 %
Single value
Ammonium < 0,06 mg/l
below limit of quantification
0.5 mg/l
< 12 % *
Single value
Calcite dissolution capacity 1,7 mg/l 5 mg/l CaCO3 Single value
Chloride 6,6 mg/l 250 mg/l
3 %
Single value
Coliform bacteria 0 KBE/100 ml 0/100 ml Single value
Colony count 22 °C 0 KBE/1 ml ohne anormale Veränderung Single value
Colony count 36 °C 0 KBE/1 ml ohne anormale Veränderung Single value
Conductivity (25 °C) 177 µS/cm 2,790 µS/cm Single value
Iron < 0,005 mg/l
below limit of quantification
0.2 mg/l
< 3 % *
Single value
Manganese < 0,001 mg/l
below limit of quantification
50 µg/l
< 2 % *
Single value
Odour ohne für den Verbraucher annehmbar Single value
pH 8,2 6,5–9,5 Single value
Sodium 5,1 mg/l 200 mg/l
3 %
Single value
Sulphate 8,2 mg/l 250 mg/l
3 %
Single value
Taste ohne für den Verbraucher annehmbar Single value
Temperature 5,5 °C Single value
Total organic carbon (TOC) 1,3 mg/l ohne anormale Veränderung Single value
Turbidity < 0,10 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.

Further parameters (10)

Further parameters – WW WGA Oleftal (Ausgang Keller) TW
Parameter Value Parametric value Share of the parametric value Reference
Acid capacity to pH 4.3 1,3 mmol/l Single value
Base capacity to pH 8.2 < 0,1 mmol/l
below limit of quantification
Single value
Calcium 25,7 mg/l Single value
Carbonate hardness 0,63 mmol/l Single value
Free carbon dioxide 1,16 mg/l Single value
Hardness range (WRMG) weich Single value
Magnesium 2,9 mg/l Single value
Phosphate < 0,6 mg/l
below limit of quantification
Single value
Potassium 0,6 mg/l Single value
Total hardness 0,76 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: http://webspace.wv-oleftal.de/wp-content/uploads/2026/03/wvo-analyse-wga-oleftal_260223.pdf · Untersuchung nach TrinkwV (Stand 2023-06) · Probenahmedatum 23.02.2026; Prüfzeitraum 23.02.2026 - 17.03.2026 · retrieved on 11/07/2026

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

No date is given for these values. The water supplier publishes the analysis without a sampling date and without a report date. When the water was examined is not apparent from the source — we do not add a date and we do not estimate one. What is stated is therefore only when we retrieved the document.

Water hardness
5 °dH
Hardness range soft

No core values are available for this zone yet.

Show all recorded parameters (2 — most recent value per parameter)

Indicator parameters (1)

Indicator parameters – Arloff
Parameter Value Parametric value Share of the parametric value Reference
pH 8,0 6,5–9,5 Maximum · Arloff

Further parameters (1)

Further parameters – Arloff
Parameter Value Parametric value Share of the parametric value Reference
Total hardness 5 °dH Maximum · Arloff

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.

Bad Münstereifel

Stadt Bad Münstereifel

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

No date is given for these values. The water supplier publishes the analysis without a sampling date and without a report date. When the water was examined is not apparent from the source — we do not add a date and we do not estimate one. What is stated is therefore only when we retrieved the document.

Water hardness
5 °dH
Hardness range soft

No core values are available for this zone yet.

Show all recorded parameters (2 — most recent value per parameter)

Indicator parameters (1)

Indicator parameters – Bad Münstereifel
Parameter Value Parametric value Share of the parametric value Reference
pH 8,0 6,5–9,5 Maximum · Bad Münstereifel

Further parameters (1)

Further parameters – Bad Münstereifel
Parameter Value Parametric value Share of the parametric value Reference
Total hardness 5 °dH Maximum · Bad Münstereifel

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.

No date is given for these values. The water supplier publishes the analysis without a sampling date and without a report date. When the water was examined is not apparent from the source — we do not add a date and we do not estimate one. What is stated is therefore only when we retrieved the document.

Water hardness
19 °dH
Hardness range hard

No core values are available for this zone yet.

Show all recorded parameters (2 — most recent value per parameter)

Indicator parameters (1)

Indicator parameters – Bergrath
Parameter Value Parametric value Share of the parametric value Reference
pH 7,8 6,5–9,5 Maximum · Bergrath

Further parameters (1)

Further parameters – Bergrath
Parameter Value Parametric value Share of the parametric value Reference
Total hardness 19 °dH Maximum · Bergrath

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.

No date is given for these values. The water supplier publishes the analysis without a sampling date and without a report date. When the water was examined is not apparent from the source — we do not add a date and we do not estimate one. What is stated is therefore only when we retrieved the document.

Water hardness
5 °dH
Hardness range soft

No core values are available for this zone yet.

Show all recorded parameters (2 — most recent value per parameter)

Indicator parameters (1)

Indicator parameters – Berresheim
Parameter Value Parametric value Share of the parametric value Reference
pH 8,0 6,5–9,5 Maximum · Berresheim

Further parameters (1)

Further parameters – Berresheim
Parameter Value Parametric value Share of the parametric value Reference
Total hardness 5 °dH Maximum · Berresheim

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.

No date is given for these values. The water supplier publishes the analysis without a sampling date and without a report date. When the water was examined is not apparent from the source — we do not add a date and we do not estimate one. What is stated is therefore only when we retrieved the document.

Water hardness
5 °dH
Hardness range soft

No core values are available for this zone yet.

Show all recorded parameters (2 — most recent value per parameter)

Indicator parameters (1)

Indicator parameters – Effelsberg
Parameter Value Parametric value Share of the parametric value Reference
pH 8,0 6,5–9,5 Maximum · Effelsberg

Further parameters (1)

Further parameters – Effelsberg
Parameter Value Parametric value Share of the parametric value Reference
Total hardness 5 °dH Maximum · Effelsberg

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.

No date is given for these values. The water supplier publishes the analysis without a sampling date and without a report date. When the water was examined is not apparent from the source — we do not add a date and we do not estimate one. What is stated is therefore only when we retrieved the document.

Water hardness
5 °dH
Hardness range soft

No core values are available for this zone yet.

Show all recorded parameters (2 — most recent value per parameter)

Indicator parameters (1)

Indicator parameters – Eichen
Parameter Value Parametric value Share of the parametric value Reference
pH 8,0 6,5–9,5 Maximum · Eichen

Further parameters (1)

Further parameters – Eichen
Parameter Value Parametric value Share of the parametric value Reference
Total hardness 5 °dH Maximum · Eichen

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.

No date is given for these values. The water supplier publishes the analysis without a sampling date and without a report date. When the water was examined is not apparent from the source — we do not add a date and we do not estimate one. What is stated is therefore only when we retrieved the document.

Water hardness
5 °dH
Hardness range soft

No core values are available for this zone yet.

Show all recorded parameters (2 — most recent value per parameter)

Indicator parameters (1)

Indicator parameters – Eicherscheid
Parameter Value Parametric value Share of the parametric value Reference
pH 8,0 6,5–9,5 Maximum · Eicherscheid

Further parameters (1)

Further parameters – Eicherscheid
Parameter Value Parametric value Share of the parametric value Reference
Total hardness 5 °dH Maximum · Eicherscheid

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.

No date is given for these values. The water supplier publishes the analysis without a sampling date and without a report date. When the water was examined is not apparent from the source — we do not add a date and we do not estimate one. What is stated is therefore only when we retrieved the document.

Water hardness
5 °dH
Hardness range soft

No core values are available for this zone yet.

Show all recorded parameters (2 — most recent value per parameter)

Indicator parameters (1)

Indicator parameters – Ellesheim
Parameter Value Parametric value Share of the parametric value Reference
pH 8,0 6,5–9,5 Maximum · Ellesheim

Further parameters (1)

Further parameters – Ellesheim
Parameter Value Parametric value Share of the parametric value Reference
Total hardness 5 °dH Maximum · Ellesheim

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.

No date is given for these values. The water supplier publishes the analysis without a sampling date and without a report date. When the water was examined is not apparent from the source — we do not add a date and we do not estimate one. What is stated is therefore only when we retrieved the document.

Water hardness
5 °dH
Hardness range soft

No core values are available for this zone yet.

Show all recorded parameters (2 — most recent value per parameter)

Indicator parameters (1)

Indicator parameters – Esch
Parameter Value Parametric value Share of the parametric value Reference
pH 8,0 6,5–9,5 Maximum · Esch

Further parameters (1)

Further parameters – Esch
Parameter Value Parametric value Share of the parametric value Reference
Total hardness 5 °dH Maximum · Esch

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.

No date is given for these values. The water supplier publishes the analysis without a sampling date and without a report date. When the water was examined is not apparent from the source — we do not add a date and we do not estimate one. What is stated is therefore only when we retrieved the document.

Water hardness
5 °dH
Hardness range soft

No core values are available for this zone yet.

Show all recorded parameters (2 — most recent value per parameter)

Indicator parameters (1)

Indicator parameters – Escher Heide
Parameter Value Parametric value Share of the parametric value Reference
pH 8,0 6,5–9,5 Maximum · Escher Heide

Further parameters (1)

Further parameters – Escher Heide
Parameter Value Parametric value Share of the parametric value Reference
Total hardness 5 °dH Maximum · Escher Heide

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.

Frequent questions about postcode 53940

How hard is the water in Postcode 53940?
Wasserverband Oleftal Hellenthal publishes a total hardness of 1,69 mmol/l for the supply zone 53925 Kall, WA Knoppen (Entnahmestelle: WA Knoppen Ausgang HB) — that corresponds to 9.5 °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: 25.03.2026, retrieved on 11/07/2026.
How much nitrate is in the drinking water in Postcode 53940?
Wasserverband Oleftal Hellenthal publishes a nitrate value of 15 mg/l for the supply zone 53925 Kall, WA Knoppen (Entnahmestelle: WA Knoppen Ausgang HB). The statutory parametric value is 50 mg/l; the measured value represents 30 % of the parametric value. Basis: 25.03.2026, retrieved on 11/07/2026.
Who supplies the drinking water in Postcode 53940?
Wasserverband Oleftal Hellenthal. The values shown here come from the supply zone 53925 Kall, WA Knoppen (Entnahmestelle: WA Knoppen Ausgang HB) 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.