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Drinking water in Rinteln

4 supply zones — values can differ depending on the district. Below is the zone with the most documented parameters, the others collapsed underneath. To determine the exact match, look up the postcode.

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.

Feuerwehrhaus Wennenkamp, Hoppenberg 2, 31737 Rinteln

Stadtwerke Rinteln GmbH

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
20.8 °dH
Hardness range hard
Key values Feuerwehrhaus Wennenkamp, Hoppenberg 2, 31737 Rinteln
Parameter Value Parametric value Share of the parametric value Reference
Nitrate 22 mg/l 50 mg/l
44 %
Single value
Lead <0.0015 mg/l
below limit of quantification
10 µg/l
< 15 % *
Single value
Escherichia coli (E. coli) 0 MPN/100 ml 0/100 ml Single value
Sulphate 171 mg/l 250 mg/l
68 %
Single value
Sodium 7.9 mg/l 200 mg/l
4 %
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 (97 — most recent value per parameter)

Microbiology (2)

Microbiology – Feuerwehrhaus Wennenkamp, Hoppenberg 2, 31737 Rinteln
Parameter Value Parametric value Share of the parametric value Reference
Escherichia coli (E. coli) 0 MPN/100 ml 0/100 ml Single value
Intestinal enterococci 0 KBE/100 ml 0/100 ml Single value

Chemical parameters (59)

Chemical parameters – Feuerwehrhaus Wennenkamp, Hoppenberg 2, 31737 Rinteln
Parameter Value Parametric value Share of the parametric value Reference
1,2-dichloroethane <0.0009 mg/l
below limit of quantification
3 µg/l
< 30 % *
Single value
2,6-Dichlorobenzamide (BAM) <0.0001 mg/l
below limit of quantification
Single value
AMPA <0.00005 mg/l
below limit of quantification
Single value
Antimony <0.0015 mg/l
below limit of quantification
5 µg/l
< 30 % *
Single value
Arsenic <0.003 mg/l
below limit of quantification
10 µg/l
< 30 % *
Single value
Atrazine <0.00001 mg/l
below limit of quantification
Single value
Bentazone <0.00001 mg/l
below limit of quantification
Single value
Benzene <0.00030 mg/l
below limit of quantification
1 µg/l
< 30 % *
Single value
Benzo(a)pyrene <0.000003 mg/l
below limit of quantification
10 ng/l
< 30 % *
Single value
Benzo(b)fluoranthene <0.00002 mg/l
below limit of quantification
Single value
Benzo(ghi)perylene <0.00002 mg/l
below limit of quantification
Single value
Benzo(k)fluoranthene <0.00002 mg/l
below limit of quantification
Single value
Bisphenol A <0.00005 mg/l
below limit of quantification
2.5 µg/l
< 2 % *
Single value
Boron <0.1 mg/l
below limit of quantification
1 mg/l
< 10 % *
Single value
Bromacil <0.00001 mg/l
below limit of quantification
Single value
Bromate <0.003 mg/l
below limit of quantification
10 µg/l
< 30 % *
Single value
Bromodichloromethane <0.0005 mg/l
below limit of quantification
Single value
Cadmium <0.0010 mg/l
below limit of quantification
3 µg/l
< 33 % *
Single value
Chlorate <0.02 mg/l
below limit of quantification
70 µg/l
< 29 % *
Single value
Chloridazon <0.00001 mg/l
below limit of quantification
Single value
Chlorite <0.06 mg/l
below limit of quantification
0.2 mg/l
< 30 % *
Single value
Chlorotoluron <0.00001 mg/l
below limit of quantification
Single value
Chromium <0.0005 mg/l
below limit of quantification
25 µg/l
< 2 % *
Single value
Copper <0.005 mg/l
below limit of quantification
2 mg/l
< 0.3 % *
Single value
Cyanide <0.005 mg/l
below limit of quantification
50 µg/l
< 10 % *
Single value
Desethylatrazine 0.00002 mg/l Single value
Desisopropylatrazine <0.00003 mg/l
below limit of quantification
Single value
Dibromochloromethane <0.0005 mg/l
below limit of quantification
Single value
Dichlorprop-P <0.00001 mg/l
below limit of quantification
Single value
Diuron <0.00001 mg/l
below limit of quantification
Single value
Ethidimuron <0.00001 mg/l
below limit of quantification
Single value
Ethofumesate <0.00003 mg/l
below limit of quantification
Single value
Fluoride <0.45 mg/l
below limit of quantification
1.5 mg/l
< 30 % *
Single value
Glyphosate <0.00005 mg/l
below limit of quantification
Single value
Isoproturon <0.00001 mg/l
below limit of quantification
Single value
Lead <0.0015 mg/l
below limit of quantification
10 µg/l
< 15 % *
Single value
MCPA <0.00001 mg/l
below limit of quantification
Single value
Mecoprop-P <0.00001 mg/l
below limit of quantification
Single value
Mercury <0.0003 mg/l
below limit of quantification
1 µg/l
< 30 % *
Single value
Metalaxyl <0.0001 mg/l
below limit of quantification
Single value
Metamitron <0.00001 mg/l
below limit of quantification
Single value
Metazachlor <0.00001 mg/l
below limit of quantification
Single value
Metolachlor <0.00001 mg/l
below limit of quantification
Single value
Metoxuron <0.00001 mg/l
below limit of quantification
Single value
Metribuzin <0.00001 mg/l
below limit of quantification
Single value
Nickel <0.005 mg/l
below limit of quantification
20 µg/l
< 25 % *
Single value
Nitrate 22 mg/l 50 mg/l
44 %
Single value
Nitrite <0.01 mg/l
below limit of quantification
0.5 mg/l
< 2 % *
Single value
Oxadixyl <0.00001 mg/l
below limit of quantification
Single value
Polycyclic aromatic hydrocarbons <0.00003 mg/l
below limit of quantification
0.1 µg/l
< 30 % *
Single value
Selenium <0.003 mg/l
below limit of quantification
10 µg/l
< 30 % *
Single value
Simazine <0.00001 mg/l
below limit of quantification
Single value
Tebuconazole <0.00001 mg/l
below limit of quantification
Single value
Terbuthylazine <0.00001 mg/l
below limit of quantification
Single value
Tetrachloroethene <0.0005 mg/l
below limit of quantification
Single value
Tribromomethane (bromoform) <0.0005 mg/l
below limit of quantification
Single value
Trichloroethene <0.0005 mg/l
below limit of quantification
Single value
Trichloromethane (chloroform) <0.0005 mg/l
below limit of quantification
Single value
Uranium <0.003 mg/l
below limit of quantification
10 µg/l
< 30 % *
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 (1)

PFAS – Feuerwehrhaus Wennenkamp, Hoppenberg 2, 31737 Rinteln
Parameter Value Parametric value Share of the parametric value Reference
Trifluoroacetic acid (TFA) <0.0005 mg/l
below limit of quantification
60 µg/l
UBA guide value
< 0.8 % *
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.

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.

Metabolites (11)

Metabolites – Feuerwehrhaus Wennenkamp, Hoppenberg 2, 31737 Rinteln
Parameter Value Parametric value Share of the parametric value Reference
1H-1,2,4-Triazole <0.00008 mg/l
below limit of quantification
Single value
Chlorothalonil M12 <0.0001 mg/l
below limit of quantification
Single value
Chlorothalonil M4 <0.0001 mg/l
below limit of quantification
Single value
Desphenyl-chloridazon <0.0001 mg/l
below limit of quantification
Single value
Dimethachlor acid CGA 50266 <0.0003 mg/l
below limit of quantification
Single value
Dimethachlor sulfonic acid CGA 354742 <0.0001 mg/l
below limit of quantification
Single value
Dimethenamid sulfonic acid M27 <0.0001 mg/l
below limit of quantification
Single value
Metazachlor sulfonic acid BH 479-8 <0.0001 mg/l
below limit of quantification
Single value
Methyl-desphenyl-chloridazon <0.0001 mg/l
below limit of quantification
Single value
S-metolachlor acid CGA 51202/351916 <0.0001 mg/l
below limit of quantification
Single value
S-metolachlor sulfonic acid CGA 380168/354743 <0.0001 mg/l
below limit of quantification
Single value

Indicator parameters (17)

Indicator parameters – Feuerwehrhaus Wennenkamp, Hoppenberg 2, 31737 Rinteln
Parameter Value Parametric value Share of the parametric value Reference
Aluminium <0.01 mg/l
below limit of quantification
0.2 mg/l
< 5 % *
Single value
Ammonium <0.04 mg/l
below limit of quantification
0.5 mg/l
< 8 % *
Single value
Chloride 18 mg/l 250 mg/l
7 %
Single value
Coliform bacteria 0 MPN/100 ml 0/100 ml Single value
Colony count 22 °C 0 KBE/ml ohne anormale Veränderung Single value
Colony count 36 °C 0 KBE/ml ohne anormale Veränderung Single value
Colour <0.100 1/m
below limit of quantification
0.5 m⁻¹ Single value
Conductivity (25 °C) 712 µS/cm 2,790 µS/cm Single value
Iron <0.05 mg/l
below limit of quantification
0.2 mg/l
< 25 % *
Single value
Manganese <0.015 mg/l
below limit of quantification
50 µg/l
< 30 % *
Single value
Odour ohne für den Verbraucher annehmbar Single value
Sodium 7.9 mg/l 200 mg/l
4 %
Single value
Sulphate 171 mg/l 250 mg/l
68 %
Single value
Taste normal für den Verbraucher annehmbar Single value
Temperature 5.5 °C Single value
Total organic carbon (TOC) <1 mg/l
below limit of quantification
ohne anormale Veränderung Single value
Turbidity 0.06 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.

Further parameters (7)

Further parameters – Feuerwehrhaus Wennenkamp, Hoppenberg 2, 31737 Rinteln
Parameter Value Parametric value Share of the parametric value Reference
Acid capacity to pH 4.3 3.4 mmol/l Single value
Calcium 93.4 mg/l Single value
Carbonate hardness 9.5 °dH Single value
Magnesium 33.1 mg/l Single value
Oxygen 10.9 mg/l Single value
Potassium 1.0 mg/l Single value
Total hardness 3.7 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: https://www.stadtwerke-rinteln.de/fileadmin/Netzbetreiber_Rinteln/Wasserqualitaet/Netz_Wennenkamp.PDF · 06.08.25 · Prüfdauer 19.02.25 - 02.04.25 · retrieved on 11/07/2026

Postcodes in this zone: 31737

Show 3 more supply zones

Kindergarten Hohenrode, Kirchweg 8, 31737 Rinteln (Entnahmestelle: Wasserhahn Spüle Küche)

Stadtwerke Rinteln GmbH

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
26.4 °dH
Hardness range hard
Key values Kindergarten Hohenrode, Kirchweg 8, 31737 Rinteln (Entnahmestelle: Wasserhahn Spüle Küche)
Parameter Value Parametric value Share of the parametric value Reference
Nitrate 16 mg/l 50 mg/l
32 %
Single value
Lead <0.0015 mg/l
below limit of quantification
10 µg/l
< 15 % *
Single value · Z-Probe
Escherichia coli (E. coli) 0 MPN/100 ml 0/100 ml Single value
Sulphate 154 mg/l 250 mg/l
62 %
Single value
Sodium 37.3 mg/l 200 mg/l
19 %
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 (59 — most recent value per parameter)

Microbiology (2)

Microbiology – Kindergarten Hohenrode, Kirchweg 8, 31737 Rinteln (Entnahmestelle: Wasserhahn Spüle Küche)
Parameter Value Parametric value Share of the parametric value Reference
Escherichia coli (E. coli) 0 MPN/100 ml 0/100 ml Single value
Intestinal enterococci 0 KBE/100 ml 0/100 ml Single value

Chemical parameters (32)

Chemical parameters – Kindergarten Hohenrode, Kirchweg 8, 31737 Rinteln (Entnahmestelle: Wasserhahn Spüle Küche)
Parameter Value Parametric value Share of the parametric value Reference
1,2-dichloroethane <0.0009 mg/l
below limit of quantification
3 µg/l
< 30 % *
Single value
Antimony <0.0015 mg/l
below limit of quantification
5 µg/l
< 30 % *
Single value
Arsenic <0.003 mg/l
below limit of quantification
10 µg/l
< 30 % *
Single value
Benzene <0.00030 mg/l
below limit of quantification
1 µg/l
< 30 % *
Single value
Benzo(a)pyrene <0.000003 mg/l
below limit of quantification
10 ng/l
< 30 % *
Single value
Benzo(b)fluoranthene <0.00002 mg/l
below limit of quantification
Single value
Benzo(ghi)perylene <0.00002 mg/l
below limit of quantification
Single value
Benzo(k)fluoranthene <0.00002 mg/l
below limit of quantification
Single value
Bisphenol A <0.00005 mg/l
below limit of quantification
2.5 µg/l
< 2 % *
Single value
Boron <0.1 mg/l
below limit of quantification
1 mg/l
< 10 % *
Single value
Bromate <0.003 mg/l
below limit of quantification
10 µg/l
< 30 % *
Single value
Bromodichloromethane <0.0005 mg/l
below limit of quantification
Single value
Cadmium <0.0010 mg/l
below limit of quantification
3 µg/l
< 33 % *
Single value
Chlorate <0.02 mg/l
below limit of quantification
70 µg/l
< 29 % *
Single value
Chlorite <0.06 mg/l
below limit of quantification
0.2 mg/l
< 30 % *
Single value
Chromium <0.0005 mg/l
below limit of quantification
25 µg/l
< 2 % *
Single value
Copper 0.046 mg/l 2 mg/l
2 %
Single value · Z-Probe
Cyanide <0.005 mg/l
below limit of quantification
50 µg/l
< 10 % *
Single value
Dibromochloromethane <0.0005 mg/l
below limit of quantification
Single value
Fluoride <0.45 mg/l
below limit of quantification
1.5 mg/l
< 30 % *
Single value
Lead <0.0015 mg/l
below limit of quantification
10 µg/l
< 15 % *
Single value · Z-Probe
Mercury <0.0003 mg/l
below limit of quantification
1 µg/l
< 30 % *
Single value
Nickel <0.005 mg/l
below limit of quantification
20 µg/l
< 25 % *
Single value · Z-Probe
Nitrate 16 mg/l 50 mg/l
32 %
Single value
Nitrite <0.01 mg/l
below limit of quantification
0.5 mg/l
< 2 % *
Single value
Polycyclic aromatic hydrocarbons <0.00003 mg/l
below limit of quantification
0.1 µg/l
< 30 % *
Single value
Selenium <0.003 mg/l
below limit of quantification
10 µg/l
< 30 % *
Single value
Tetrachloroethene <0.0005 mg/l
below limit of quantification
Single value
Tribromomethane (bromoform) <0.0005 mg/l
below limit of quantification
Single value
Trichloroethene <0.0005 mg/l
below limit of quantification
Single value
Trichloromethane (chloroform) <0.0005 mg/l
below limit of quantification
Single value
Uranium <0.003 mg/l
below limit of quantification
10 µg/l
< 30 % *
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 (18)

Indicator parameters – Kindergarten Hohenrode, Kirchweg 8, 31737 Rinteln (Entnahmestelle: Wasserhahn Spüle Küche)
Parameter Value Parametric value Share of the parametric value Reference
Aluminium <0.01 mg/l
below limit of quantification
0.2 mg/l
< 5 % *
Single value
Ammonium <0.04 mg/l
below limit of quantification
0.5 mg/l
< 8 % *
Single value
Chloride 67 mg/l 250 mg/l
27 %
Single value
Clostridium perfringens (including spores) 0 KBE/100 ml 0/100 ml Single value
Coliform bacteria 0 MPN/100 ml 0/100 ml Single value
Colony count 22 °C 3 KBE/ml ohne anormale Veränderung Single value
Colony count 36 °C 0 KBE/ml ohne anormale Veränderung Single value
Colour <0.100 1/m
below limit of quantification
0.5 m⁻¹ Single value
Conductivity (25 °C) 1052 µS/cm 2,790 µS/cm Single value
Iron <0.05 mg/l
below limit of quantification
0.2 mg/l
< 25 % *
Single value
Manganese <0.015 mg/l
below limit of quantification
50 µg/l
< 30 % *
Single value
Odour ohne für den Verbraucher annehmbar Single value
Sodium 37.3 mg/l 200 mg/l
19 %
Single value
Sulphate 154 mg/l 250 mg/l
62 %
Single value
Taste normal für den Verbraucher annehmbar Single value
Temperature 16.3 °C Single value · Z-Probe
Total organic carbon (TOC) 1.20 mg/l ohne anormale Veränderung Single value
Turbidity 0.07 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.

Further parameters (7)

Further parameters – Kindergarten Hohenrode, Kirchweg 8, 31737 Rinteln (Entnahmestelle: Wasserhahn Spüle Küche)
Parameter Value Parametric value Share of the parametric value Reference
Acid capacity to pH 4.3 6.1 mmol/l Single value
Calcium 145.2 mg/l Single value
Carbonate hardness 17.2 °dH Single value
Magnesium 26.0 mg/l Single value
Oxygen 6.01 mg/l Single value
Potassium 4.1 mg/l Single value
Total hardness 4.7 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: https://www.stadtwerke-rinteln.de/fileadmin/Netzbetreiber_Rinteln/Wasserqualitaet/Netz_Hohenrode.PDF · 06.08.25 · Prüfdauer 13.05.25 - 19.06.25 (Hauptprobe); Z-Probe: 13.05.25 - 22.05.25 · retrieved on 11/07/2026

Postcodes in this zone: 31737

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
10.7 °dH
Hardness range medium
Key values rinteln gesamt
Parameter Value Parametric value Share of the parametric value Reference
Escherichia coli (E. coli) 0 MPN/100 ml 0/100 ml Single value
Show all recorded parameters (20 — most recent value per parameter)

Microbiology (2)

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

Indicator parameters (11)

Indicator parameters – rinteln gesamt
Parameter Value Parametric value Share of the parametric value Reference
Coliform bacteria 0 MPN/100 ml 0/100 ml Single value
Colony count 22 °C 0 KBE/ml ohne anormale Veränderung Single value
Colony count 36 °C 0 KBE/ml ohne anormale Veränderung Single value
Colour <0.100 1/m
below limit of quantification
0.5 m⁻¹ Single value
Conductivity (25 °C) 397 µS/cm 2,790 µS/cm Single value
Iron <0.05 mg/l
below limit of quantification
0.2 mg/l
< 25 % *
Single value
Manganese <0.015 mg/l
below limit of quantification
50 µg/l
< 30 % *
Single value
Odour ohne für den Verbraucher annehmbar Single value
Taste normal für den Verbraucher annehmbar Single value
Temperature 4.3 °C Single value
Turbidity 0.08 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.

Further parameters (7)

Further parameters – rinteln gesamt
Parameter Value Parametric value Share of the parametric value Reference
Acid capacity to pH 4.3 3.1 mmol/l Single value
Calcium 44.6 mg/l Single value
Carbonate hardness 8.8 °dH Single value
Magnesium 18.8 mg/l Single value
Oxygen 8.4 mg/l Single value
Potassium 0.8 mg/l Single value
Total hardness 1.9 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: https://www.stadtwerke-rinteln.de/fileadmin/Netzbetreiber_Rinteln/Wasserqualitaet/Netz_Goldbeck.PDF · 06.08.25 · 19.02.25 - 28.02.25 · retrieved on 11/07/2026

Postcodes in this zone: 31737

Rinteln, Marktplatz, Bürgerhaus, Marktplatz 13, 31737 Rinteln

Stadtwerke Rinteln GmbH

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
28.6 °dH
Hardness range hard
Key values Rinteln, Marktplatz, Bürgerhaus, Marktplatz 13, 31737 Rinteln
Parameter Value Parametric value Share of the parametric value Reference
Nitrate 17 mg/l 50 mg/l
34 %
Single value
Lead <0.0015 mg/l
below limit of quantification
10 µg/l
< 15 % *
Single value · Z-Probe
Escherichia coli (E. coli) 0 MPN/100 ml 0/100 ml Single value
Sulphate 148 mg/l 250 mg/l
59 %
Single value
Sodium 37.7 mg/l 200 mg/l
19 %
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 (58 — most recent value per parameter)

Microbiology (2)

Microbiology – Rinteln, Marktplatz, Bürgerhaus, Marktplatz 13, 31737 Rinteln
Parameter Value Parametric value Share of the parametric value Reference
Escherichia coli (E. coli) 0 MPN/100 ml 0/100 ml Single value
Intestinal enterococci 0 KBE/100 ml 0/100 ml Single value

Chemical parameters (32)

Chemical parameters – Rinteln, Marktplatz, Bürgerhaus, Marktplatz 13, 31737 Rinteln
Parameter Value Parametric value Share of the parametric value Reference
1,2-dichloroethane <0.0009 mg/l
below limit of quantification
3 µg/l
< 30 % *
Single value
Antimony <0.0015 mg/l
below limit of quantification
5 µg/l
< 30 % *
Single value
Arsenic <0.003 mg/l
below limit of quantification
10 µg/l
< 30 % *
Single value
Benzene <0.00030 (1) mg/l
below limit of quantification
1 µg/l Single value
Benzo(a)pyrene <0.000003 (1) mg/l
below limit of quantification
10 ng/l Single value
Benzo(b)fluoranthene <0.00002 (1) mg/l
below limit of quantification
Single value
Benzo(ghi)perylene <0.00002 (1) mg/l
below limit of quantification
Single value
Benzo(k)fluoranthene <0.00002 (1) mg/l
below limit of quantification
Single value
Bisphenol A <0.00005 (1) mg/l
below limit of quantification
2.5 µg/l Single value
Boron <0.1 mg/l
below limit of quantification
1 mg/l
< 10 % *
Single value
Bromate <0.003 (1) mg/l
below limit of quantification
10 µg/l Single value
Bromodichloromethane <0.0005 mg/l
below limit of quantification
Single value
Cadmium <0.0010 mg/l
below limit of quantification
3 µg/l
< 33 % *
Single value
Chlorate <0.02 mg/l
below limit of quantification
70 µg/l
< 29 % *
Single value
Chlorite <0.06 mg/l
below limit of quantification
0.2 mg/l
< 30 % *
Single value
Chromium <0.0005 mg/l
below limit of quantification
25 µg/l
< 2 % *
Single value
Copper 0.019 mg/l 2 mg/l
1 %
Single value · Z-Probe
Cyanide <0.005 (1) mg/l
below limit of quantification
50 µg/l Single value
Dibromochloromethane <0.0005 mg/l
below limit of quantification
Single value
Fluoride <0.45 mg/l
below limit of quantification
1.5 mg/l
< 30 % *
Single value
Lead <0.0015 mg/l
below limit of quantification
10 µg/l
< 15 % *
Single value · Z-Probe
Mercury <0.0003 mg/l
below limit of quantification
1 µg/l
< 30 % *
Single value
Nickel <0.005 mg/l
below limit of quantification
20 µg/l
< 25 % *
Single value · Z-Probe
Nitrate 17 mg/l 50 mg/l
34 %
Single value
Nitrite <0.01 mg/l
below limit of quantification
0.5 mg/l
< 2 % *
Single value
Polycyclic aromatic hydrocarbons <0.00003 (1) mg/l
below limit of quantification
0.1 µg/l Single value
Selenium <0.003 mg/l
below limit of quantification
10 µg/l
< 30 % *
Single value
Tetrachloroethene <0.0005 mg/l
below limit of quantification
Single value
Tribromomethane (bromoform) <0.0005 mg/l
below limit of quantification
Single value
Trichloroethene <0.0005 mg/l
below limit of quantification
Single value
Trichloromethane (chloroform) <0.0005 mg/l
below limit of quantification
Single value
Uranium <0.003 mg/l
below limit of quantification
10 µg/l
< 30 % *
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 (17)

Indicator parameters – Rinteln, Marktplatz, Bürgerhaus, Marktplatz 13, 31737 Rinteln
Parameter Value Parametric value Share of the parametric value Reference
Aluminium <0.01 mg/l
below limit of quantification
0.2 mg/l
< 5 % *
Single value
Ammonium <0.04 mg/l
below limit of quantification
0.5 mg/l
< 8 % *
Single value
Chloride 70 mg/l 250 mg/l
28 %
Single value
Coliform bacteria 0 MPN/100 ml 0/100 ml Single value
Colony count 22 °C 48 KBE/ml ohne anormale Veränderung Single value
Colony count 36 °C 34 KBE/ml ohne anormale Veränderung Single value
Colour <0.100 1/m
below limit of quantification
0.5 m⁻¹ Single value
Conductivity (25 °C) 1058 µS/cm 2,790 µS/cm Single value
Iron <0.05 mg/l
below limit of quantification
0.2 mg/l
< 25 % *
Single value
Manganese <0.015 mg/l
below limit of quantification
50 µg/l
< 30 % *
Single value
Odour ohne für den Verbraucher annehmbar Single value
Sodium 37.7 mg/l 200 mg/l
19 %
Single value
Sulphate 148 mg/l 250 mg/l
59 %
Single value
Taste normal für den Verbraucher annehmbar Single value
Temperature 13.4 °C Single value · Z-Probe
Total organic carbon (TOC) 1.16 mg/l ohne anormale Veränderung Single value
Turbidity 0.07 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.

Further parameters (7)

Further parameters – Rinteln, Marktplatz, Bürgerhaus, Marktplatz 13, 31737 Rinteln
Parameter Value Parametric value Share of the parametric value Reference
Acid capacity to pH 4.3 6.2 mmol/l Single value
Calcium 162.6 mg/l Single value
Carbonate hardness 17.4 °dH Single value
Magnesium 24.9 mg/l Single value
Oxygen 3.22 mg/l Single value
Potassium 4.1 mg/l Single value
Total hardness 5.1 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: https://www.stadtwerke-rinteln.de/fileadmin/Netzbetreiber_Rinteln/Wasserqualitaet/Netz_Rinteln.PDF · 06.08.25 · Prüfdauer 13.05.25 - 19.06.25 (Hauptprobe); 13.05.25 - 22.05.25 (Z-Probe) · retrieved on 11/07/2026

Postcodes in this zone: 31737

Frequently asked questions about drinking water in Rinteln

How hard is the water in Rinteln?
Stadtwerke Rinteln GmbH publishes a total hardness of 3.7 mmol/l for the supply zone Feuerwehrhaus Wennenkamp, Hoppenberg 2, 31737 Rinteln — that corresponds to 20.8 °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: 06.08.25, retrieved on 11/07/2026.
How much nitrate is in the drinking water in Rinteln?
Stadtwerke Rinteln GmbH publishes a nitrate value of 22 mg/l for the supply zone Feuerwehrhaus Wennenkamp, Hoppenberg 2, 31737 Rinteln. The statutory parametric value is 50 mg/l; the measured value represents 44 % of the parametric value. Basis: 06.08.25, retrieved on 11/07/2026.
Who supplies the drinking water in Rinteln?
Stadtwerke Rinteln GmbH. The values shown here come from the supply zone Feuerwehrhaus Wennenkamp, Hoppenberg 2, 31737 Rinteln 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.