Who supplies the drinking water in Postcode 58840?

Trinkwasserversorgung Plettenberg (mark E). The values shown here come from the supply zone Brockhausen / Siesel / WW Treckinghausen (Bezug WBV Lüdenscheid) 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.

Drinking water in 58840

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 4 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.

Brockhausen / Siesel / WW Treckinghausen (Bezug WBV Lüdenscheid)

Trinkwasserversorgung Plettenberg (mark E)

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

Key values Brockhausen / Siesel / WW Treckinghausen (Bezug WBV Lüdenscheid)
Parameter	Value	Parametric value	Share of the parametric value	Reference
Nitrate	6,9 mg / I	50 mg/l	—	Mean · WBV Lüd. (WW Treck. TW Jahresmittel)
Lead	<0,001 mg / I below limit of quantification	10 µg/l	—	Mean · WBV Lüd. (WW Treck. TW Jahresmittel)
Sulphate	8,5 mg / I	250 mg/l	—	Mean · WBV Lüd. (WW Treck. TW Jahresmittel)
Sodium	5,6 mg / I	200 mg/l	—	Mean · WBV Lüd. (WW Treck. TW Jahresmittel)

Show all recorded parameters (25 — most recent value per parameter)

Microbiology (1)

Microbiology – Brockhausen / Siesel / WW Treckinghausen (Bezug WBV Lüdenscheid)
Parameter	Value	Parametric value	Share of the parametric value	Reference
Intestinal enterococci	0 / 100 ml	0/100 ml	—	Mean · WBV Lüd. (WW Treck. TW Jahresmittel)

Chemical parameters (4)

Chemical parameters – Brockhausen / Siesel / WW Treckinghausen (Bezug WBV Lüdenscheid)
Parameter	Value	Parametric value	Share of the parametric value	Reference
Fluoride	<0,05 mg/l below limit of quantification	1.5 mg/l	< 3 % *	Mean · WBV Lüd. (WW Treck. TW Jahresmittel)
Lead	<0,001 mg / I below limit of quantification	10 µg/l	—	Mean · WBV Lüd. (WW Treck. TW Jahresmittel)
Nitrate	6,9 mg / I	50 mg/l	—	Mean · WBV Lüd. (WW Treck. TW Jahresmittel)
Nitrite	<0,01 mg / I below limit of quantification	0.5 mg/l	—	Mean · WBV Lüd. (WW Treck. TW Jahresmittel)

* 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 (14)

Indicator parameters – Brockhausen / Siesel / WW Treckinghausen (Bezug WBV Lüdenscheid)
Parameter	Value	Parametric value	Share of the parametric value	Reference
Aluminium	0,02 mg / I	0.2 mg/l	—	Mean · WBV Lüd. (WW Treck. TW Jahresmittel)
Ammonium	<0,01 mg / I below limit of quantification	0.5 mg/l	—	Mean · WBV Lüd. (WW Treck. TW Jahresmittel)
Calcite dissolution capacity	1,6 mg/l	5 mg/l CaCO3	—	Mean · WBV Lüd. (WW Treck. TW Jahresmittel)
Chloride	8 mg / I	250 mg/l	—	Mean · WBV Lüd. (WW Treck. TW Jahresmittel)
Clostridium perfringens (including spores)	0 / 100 ml	0/100 ml	—	Mean · WBV Lüd. (WW Treck. TW Jahresmittel)
Iron	<0,01 mg / I below limit of quantification	0.2 mg/l	—	Mean · WBV Lüd. (WW Treck. TW Jahresmittel)
Manganese	<0,01 mg / I below limit of quantification	50 µg/l	—	Mean · WBV Lüd. (WW Treck. TW Jahresmittel)
Odour	0	für den Verbraucher annehmbar	—	Mean · WBV Lüd. (WW Treck. TW Jahresmittel)
pH	8,7	6,5–9,5	—	Mean · WBV Lüd. (WW Treck. TW Jahresmittel)
Sodium	5,6 mg / I	200 mg/l	—	Mean · WBV Lüd. (WW Treck. TW Jahresmittel)
Sulphate	8,5 mg / I	250 mg/l	—	Mean · WBV Lüd. (WW Treck. TW Jahresmittel)
Temperature	6,8 °C	—	—	Mean · WBV Lüd. (WW Treck. TW Jahresmittel)
Total organic carbon (TOC)	0,9 mg/l	ohne anormale Veränderung	—	Mean · WBV Lüd. (WW Treck. TW Jahresmittel)
Turbidity	<0,05 FNU below limit of quantification	1 NTU	—	Mean · WBV Lüd. (WW Treck. TW Jahresmittel)

Further parameters (6)

Further parameters – Brockhausen / Siesel / WW Treckinghausen (Bezug WBV Lüdenscheid)
Parameter	Value	Parametric value	Share of the parametric value	Reference
Acid capacity to pH 4.3	0,62 mmol / I	—	—	Mean · WBV Lüd. (WW Treck. TW Jahresmittel)
Calcium	11,9 mg / I	—	—	Mean · WBV Lüd. (WW Treck. TW Jahresmittel)
Magnesium	2,2 mg / I	—	—	Mean · WBV Lüd. (WW Treck. TW Jahresmittel)
Phosphate	<0,02 mg / I below limit of quantification	—	—	Mean · WBV Lüd. (WW Treck. TW Jahresmittel)
Potassium	0,6 mg / I	—	—	Mean · WBV Lüd. (WW Treck. TW Jahresmittel)
Sum of alkaline earth metals	0,41 mmol / I	—	—	Mean · WBV Lüd. (WW Treck. TW Jahresmittel)

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://a.storyblok.com/f/320707/x/b14b72ecfc/2025-trinkwasseranalysen-plettenberg-inkl-bezug-wbv-und-treckinghausen.pdf · 27.10.2025 (Einzelproben Brockhausen/Siesel); Jahresmittel (Mischwert der Anlagen / WW Treckinghausen) · retrieved on 11/07/2026

Show 4 more supply zones in this postcode

Brockhausen TW

Trinkwasserversorgung Plettenberg (mark E)

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

Key values Brockhausen TW
Parameter	Value	Parametric value	Share of the parametric value	Reference
Nitrate	4,0 mg / I	50 mg/l	—	Single value · Brockhausen TW
Lead	<0,001 mg / I below limit of quantification	10 µg/l	—	Single value · Brockhausen TW
Sulphate	23 mg / I	250 mg/l	—	Single value · Brockhausen TW
Sodium	13,1 mg / I	200 mg/l	—	Single value · Brockhausen TW

Show all recorded parameters (25 — most recent value per parameter)

Microbiology (1)

Microbiology – Brockhausen TW
Parameter	Value	Parametric value	Share of the parametric value	Reference
Intestinal enterococci	0 / 100 ml	0/100 ml	—	Single value · Brockhausen TW

Chemical parameters (4)

Chemical parameters – Brockhausen TW
Parameter	Value	Parametric value	Share of the parametric value	Reference
Fluoride	0,08 mg/l	1.5 mg/l	5 %	Single value · Brockhausen TW
Lead	<0,001 mg / I below limit of quantification	10 µg/l	—	Single value · Brockhausen TW
Nitrate	4,0 mg / I	50 mg/l	—	Single value · Brockhausen TW
Nitrite	<0,01 mg / I below limit of quantification	0.5 mg/l	—	Single value · Brockhausen TW

Indicator parameters (14)

Indicator parameters – Brockhausen TW
Parameter	Value	Parametric value	Share of the parametric value	Reference
Aluminium	<0,01 mg / I below limit of quantification	0.2 mg/l	—	Single value · Brockhausen TW
Ammonium	<0,01 mg / I below limit of quantification	0.5 mg/l	—	Single value · Brockhausen TW
Calcite dissolution capacity	1,2 mg/l	5 mg/l CaCO3	—	Single value · Brockhausen TW
Chloride	22 mg / I	250 mg/l	—	Single value · Brockhausen TW
Clostridium perfringens (including spores)	0 / 100 ml	0/100 ml	—	Single value · Brockhausen TW
Iron	0,02 mg / I	0.2 mg/l	—	Single value · Brockhausen TW
Manganese	0,02 mg / I	50 µg/l	—	Single value · Brockhausen TW
Odour	0	für den Verbraucher annehmbar	—	Single value · Brockhausen TW
pH	8,0	6,5–9,5	—	Single value · Brockhausen TW
Sodium	13,1 mg / I	200 mg/l	—	Single value · Brockhausen TW
Sulphate	23 mg / I	250 mg/l	—	Single value · Brockhausen TW
Temperature	12,1 °C	—	—	Single value · Brockhausen TW
Total organic carbon (TOC)	0,4 mg/l	ohne anormale Veränderung	—	Single value · Brockhausen TW
Turbidity	<0,05 FNU below limit of quantification	1 NTU	—	Single value · Brockhausen TW

Further parameters (6)

Further parameters – Brockhausen TW
Parameter	Value	Parametric value	Share of the parametric value	Reference
Acid capacity to pH 4.3	1,9 mmol / I	—	—	Single value · Brockhausen TW
Calcium	32,7 mg / I	—	—	Single value · Brockhausen TW
Magnesium	6,81 mg / I	—	—	Single value · Brockhausen TW
Phosphate	[0,05] mg / I	—	—	Single value · Brockhausen TW
Potassium	1,3 mg / I	—	—	Single value · Brockhausen TW
Sum of alkaline earth metals	1,1 mmol / I	—	—	Single value · Brockhausen TW

Mischwert der Anlagen

Trinkwasserversorgung Plettenberg (mark E)

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

Key values Mischwert der Anlagen
Parameter	Value	Parametric value	Share of the parametric value	Reference
Nitrate	6,4 mg / I	50 mg/l	—	Mean · Mischwert der Anlagen
Lead	<0,001 mg / I below limit of quantification	10 µg/l	—	Mean · Mischwert der Anlagen
Sulphate	23 mg / I	250 mg/l	—	Mean · Mischwert der Anlagen
Sodium	13,2 mg / I	200 mg/l	—	Mean · Mischwert der Anlagen

Show all recorded parameters (25 — most recent value per parameter)

Microbiology (1)

Microbiology – Mischwert der Anlagen
Parameter	Value	Parametric value	Share of the parametric value	Reference
Intestinal enterococci	0 / 100 ml	0/100 ml	—	Mean · Mischwert der Anlagen

Chemical parameters (4)

Chemical parameters – Mischwert der Anlagen
Parameter	Value	Parametric value	Share of the parametric value	Reference
Fluoride	0,07 mg/l	1.5 mg/l	5 %	Mean · Mischwert der Anlagen
Lead	<0,001 mg / I below limit of quantification	10 µg/l	—	Mean · Mischwert der Anlagen
Nitrate	6,4 mg / I	50 mg/l	—	Mean · Mischwert der Anlagen
Nitrite	<0,01 mg / I below limit of quantification	0.5 mg/l	—	Mean · Mischwert der Anlagen

Indicator parameters (14)

Indicator parameters – Mischwert der Anlagen
Parameter	Value	Parametric value	Share of the parametric value	Reference
Aluminium	<0,01 mg / I below limit of quantification	0.2 mg/l	—	Mean · Mischwert der Anlagen
Ammonium	<0,01 mg / I below limit of quantification	0.5 mg/l	—	Mean · Mischwert der Anlagen
Calcite dissolution capacity	3,1 mg/l	5 mg/l CaCO3	—	Mean · Mischwert der Anlagen
Chloride	22 mg / I	250 mg/l	—	Mean · Mischwert der Anlagen
Clostridium perfringens (including spores)	0 / 100 ml	0/100 ml	—	Mean · Mischwert der Anlagen
Iron	<0,01 mg / I below limit of quantification	0.2 mg/l	—	Mean · Mischwert der Anlagen
Manganese	<0,01 mg / I below limit of quantification	50 µg/l	—	Mean · Mischwert der Anlagen
Odour	0	für den Verbraucher annehmbar	—	Mean · Mischwert der Anlagen
pH	7,9	6,5–9,5	—	Mean · Mischwert der Anlagen
Sodium	13,2 mg / I	200 mg/l	—	Mean · Mischwert der Anlagen
Sulphate	23 mg / I	250 mg/l	—	Mean · Mischwert der Anlagen
Temperature	15 °C	—	—	Mean · Mischwert der Anlagen
Total organic carbon (TOC)	0,4 mg/l	ohne anormale Veränderung	—	Mean · Mischwert der Anlagen
Turbidity	<0,05 FNU below limit of quantification	1 NTU	—	Mean · Mischwert der Anlagen

Further parameters (6)

Further parameters – Mischwert der Anlagen
Parameter	Value	Parametric value	Share of the parametric value	Reference
Acid capacity to pH 4.3	1,7 mmol / I	—	—	Mean · Mischwert der Anlagen
Calcium	29,0 mg / I	—	—	Mean · Mischwert der Anlagen
Magnesium	6,7 mg / I	—	—	Mean · Mischwert der Anlagen
Phosphate	[0,04] mg / I	—	—	Mean · Mischwert der Anlagen
Potassium	1,5 mg / I	—	—	Mean · Mischwert der Anlagen
Sum of alkaline earth metals	1,0 mmol / I	—	—	Mean · Mischwert der Anlagen

Siesel TW

Trinkwasserversorgung Plettenberg (mark E)

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

Key values Siesel TW
Parameter	Value	Parametric value	Share of the parametric value	Reference
Nitrate	8,7 mg / I	50 mg/l	—	Single value · Siesel TW
Lead	<0,001 mg / I below limit of quantification	10 µg/l	—	Single value · Siesel TW
Sulphate	23 mg / I	250 mg/l	—	Single value · Siesel TW
Sodium	13,2 mg / I	200 mg/l	—	Single value · Siesel TW

Show all recorded parameters (25 — most recent value per parameter)

Microbiology (1)

Microbiology – Siesel TW
Parameter	Value	Parametric value	Share of the parametric value	Reference
Intestinal enterococci	0 / 100 ml	0/100 ml	—	Single value · Siesel TW

Chemical parameters (4)

Chemical parameters – Siesel TW
Parameter	Value	Parametric value	Share of the parametric value	Reference
Fluoride	0,07 mg/l	1.5 mg/l	5 %	Single value · Siesel TW
Lead	<0,001 mg / I below limit of quantification	10 µg/l	—	Single value · Siesel TW
Nitrate	8,7 mg / I	50 mg/l	—	Single value · Siesel TW
Nitrite	<0,01 mg / I below limit of quantification	0.5 mg/l	—	Single value · Siesel TW

Indicator parameters (14)

Indicator parameters – Siesel TW
Parameter	Value	Parametric value	Share of the parametric value	Reference
Aluminium	<0,01 mg / I below limit of quantification	0.2 mg/l	—	Single value · Siesel TW
Ammonium	<0,01 mg / I below limit of quantification	0.5 mg/l	—	Single value · Siesel TW
Calcite dissolution capacity	5,0 mg/l	5 mg/l CaCO3	—	Single value · Siesel TW
Chloride	22 mg / I	250 mg/l	—	Single value · Siesel TW
Clostridium perfringens (including spores)	0 / 100 ml	0/100 ml	—	Single value · Siesel TW
Iron	<0,01 mg / I below limit of quantification	0.2 mg/l	—	Single value · Siesel TW
Manganese	<0,01 mg / I below limit of quantification	50 µg/l	—	Single value · Siesel TW
Odour	0	für den Verbraucher annehmbar	—	Single value · Siesel TW
pH	7,8	6,5–9,5	—	Single value · Siesel TW
Sodium	13,2 mg / I	200 mg/l	—	Single value · Siesel TW
Sulphate	23 mg / I	250 mg/l	—	Single value · Siesel TW
Temperature	17,4 °C	—	—	Single value · Siesel TW
Total organic carbon (TOC)	0,4 mg/l	ohne anormale Veränderung	—	Single value · Siesel TW
Turbidity	<0,05 FNU below limit of quantification	1 NTU	—	Single value · Siesel TW

Further parameters (6)

Further parameters – Siesel TW
Parameter	Value	Parametric value	Share of the parametric value	Reference
Acid capacity to pH 4.3	1,46 mmol / I	—	—	Single value · Siesel TW
Calcium	25,4 mg / I	—	—	Single value · Siesel TW
Magnesium	6,49 mg / I	—	—	Single value · Siesel TW
Phosphate	[0,02] mg / I	—	—	Single value · Siesel TW
Potassium	1,8 mg / I	—	—	Single value · Siesel TW
Sum of alkaline earth metals	0,9 mmol / I	—	—	Single value · Siesel TW

Treckinghausen

Stadtwerke Lüdenscheid

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 31/12/2017. 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.

Key values Treckinghausen
Parameter	Value	Parametric value	Share of the parametric value	Reference
Nitrate	4,2 mg / l	50 mg/l	—	Mean
Lead	<0,001 mg / l below limit of quantification	10 µg/l	—	Mean
Sulphate	9 mg / l	250 mg/l	—	Mean
Sodium	7,1 mg / l	200 mg/l	—	Mean

Show all recorded parameters (27 — most recent value per parameter)

Microbiology (1)

Microbiology – Treckinghausen
Parameter	Value	Parametric value	Share of the parametric value	Reference
Intestinal enterococci	0 / 100 ml	0/100 ml	—	Maximum · Median 0

Chemical parameters (5)

Chemical parameters – Treckinghausen
Parameter	Value	Parametric value	Share of the parametric value	Reference
Fluoride	0,06 mg/l	1.5 mg/l	4 %	Mean
Lead	<0,001 mg / l below limit of quantification	10 µg/l	—	Mean
Nitrate	4,2 mg / l	50 mg/l	—	Mean
Nitrite	<0,01 mg / l below limit of quantification	0.5 mg/l	—	Mean
Uranium	<0,0001 mg / l below limit of quantification	10 µg/l	—	Mean

Indicator parameters (12)

Indicator parameters – Treckinghausen
Parameter	Value	Parametric value	Share of the parametric value	Reference
Aluminium	0,01 mg / l	0.2 mg/l	—	Mean
Ammonium	<0,04 mg / l below limit of quantification	0.5 mg/l	—	Mean
Chloride	13 mg / l	250 mg/l	—	Mean
Clostridium perfringens (including spores)	0 / 100 ml	0/100 ml	—	Maximum · Median 0
Iron	<0,01 mg / l below limit of quantification	0.2 mg/l	—	Mean
Manganese	<0,005 mg / l below limit of quantification	50 µg/l	—	Mean
Odour	geruchlos	für den Verbraucher annehmbar	—	Single value
Sodium	7,1 mg / l	200 mg/l	—	Mean
Sulphate	9 mg / l	250 mg/l	—	Mean
Temperature	6,8 °C	—	—	Mean
Total organic carbon (TOC)	0,8 mg/l	ohne anormale Veränderung	—	Mean
Turbidity	0,08 FNU	1 NTU	—	Mean

Further parameters (9)

Further parameters – Treckinghausen
Parameter	Value	Parametric value	Share of the parametric value	Reference
Acid capacity to pH 4.3	0,5 mmol / l	—	—	Mean
Base capacity to pH 8.2	nicht untersucht, da pH-Wert ≥ 8,2 mmol / l not determined	—	—	Single value
Calcium	12,0 mg / l	—	—	Mean
Dissolved organic carbon (DOC)	0,8 mg/l	—	—	Mean
Magnesium	2,3 mg / l	—	—	Mean
Phosphate	<0,01 mg / l below limit of quantification	—	—	Mean
Potassium	0,7 mg / l	—	—	Mean
Silicate / silicic acid	2,5 mg / l	—	—	Mean
Sum of alkaline earth metals	0,4 mmol / l	—	—	Mean

Source: https://www.stadtwerke-meinerzhagen.de/de/Produkte/Wasser/Wasseranalyse/Wasseranalyse/Trinkwasseranalyse-Stadtwerke-Luedenscheid.pdf · Jahresmittelwert 2017 · retrieved on 14/07/2026

Frequent questions about postcode 58840

Who supplies the drinking water in Postcode 58840?: Trinkwasserversorgung Plettenberg (mark E). The values shown here come from the supply zone Brockhausen / Siesel / WW Treckinghausen (Bezug WBV Lüdenscheid) 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.