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Drinking water in Langenhagen

11 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.

DE Horst (FrielingerStr., Garbsen)

Wasserverband Garbsen-Neustadt a. Rbge. (WVGN)

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

Water hardness
12 °dH
Hardness range medium
Key values DE Horst (FrielingerStr., Garbsen)
Parameter Value Parametric value Share of the parametric value Reference
Nitrate 40 mg/l 50 mg/l
80 %
Single value
Lead < 0,001 mg/l
below limit of quantification
 10 µg/l
< 10 % *
Single value
Sulphate 65 mg/l 250 mg/l
26 %
Single value
Sodium 21 mg/l 200 mg/l
11 %
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 (52 — most recent value per parameter)

Chemical parameters (31)

Chemical parameters – DE Horst (FrielingerStr., Garbsen)
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 < 0,001 mg/l
below limit of quantification
 5 µg/l
< 20 % *
Single value
Arsenic < 0,001 mg/l
below limit of quantification
 10 µg/l
< 10 % *
Single value
Benzene < 0,0001 mg/l
below limit of quantification
 1 µg/l
< 10 % *
Single value
Benzo(a)pyrene < 0,000003 mg/l
below limit of quantification
 10 ng/l
< 30 % *
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
Boron 0,033 mg/l 1 mg/l
3 %
Single value
Bromate < 0,002 mg/l
below limit of quantification
 10 µg/l
< 20 % *
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
Chromium < 0,0005 mg/l
below limit of quantification
 25 µg/l
< 2 % *
Single value
Copper 0,011 mg/l 2 mg/l
0.5 %
Single value
Cyanide < 0,005 mg/l
below limit of quantification
 50 µg/l
< 10 % *
Single value
Dibromochloromethane < 0,0001 mg/l
below limit of quantification
 — — Single value
Fluoride 0,08 mg/l 1.5 mg/l
5 %
Single value
Indeno(1,2,3-cd)pyrene < 0,00001 mg/l
below limit of quantification
 — — Single value
Lead < 0,001 mg/l
below limit of quantification
 10 µg/l
< 10 % *
Single value
Mercury < 0,0001 mg/l
below limit of quantification
 1 µg/l
< 10 % *
Single value
Nickel 0,001 mg/l 20 µg/l
5 %
Single value
Nitrate 40 mg/l 50 mg/l
80 %
Single value
Nitrite < 0,01 mg/l
below limit of quantification
 0.5 mg/l
< 2 % *
Single value
Polycyclic aromatic hydrocarbons u.B. mg/l
not detectable
 0.1 µg/l — Single value
Selenium < 0,001 mg/l
below limit of quantification
 10 µg/l
< 10 % *
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
Trichloroethene < 0,0001 mg/l
below limit of quantification
 — — Single value
Trichloromethane (chloroform) < 0,0001 mg/l
below limit of quantification
 — — Single value
Trihalomethanes — Total u.B. mg/l
not detectable
 50 µg/l — Single value
Uranium < 0,001 mg/l
below limit of quantification
 10 µg/l
< 10 % *
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 (16)

Indicator parameters – DE Horst (FrielingerStr., Garbsen)
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 < 0,02 mg/l
below limit of quantification
 0.5 mg/l
< 4 % *
Single value
Calcite dissolution capacity < 1 mg/l
below limit of quantification
 5 mg/l CaCO3 — Single value
Chloride 41 mg/l 250 mg/l
16 %
Single value
Conductivity (25 °C) 550 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 normal für den Verbraucher annehmbar — Single value
Oxidisability < 1 mg/l
below limit of quantification
 5 mg/l O2 — Single value
pH 7,8 6,5–9,5 — Single value
Sodium 21 mg/l 200 mg/l
11 %
Single value
Sulphate 65 mg/l 250 mg/l
26 %
Single value
Taste normal für den Verbraucher annehmbar — Single value
Temperature 9,4 °C — — Single value
Total organic carbon (TOC) < 1 mg/l
below limit of quantification
 ohne anormale Veränderung — Single value
Turbidity 0,01 NTU 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 (5)

Further parameters – DE Horst (FrielingerStr., Garbsen)
Parameter Value Parametric value Share of the parametric value Reference
Calcium 65 mg/l — — Single value
Carbonate hardness 5,6 °dH — — Single value
Magnesium 13 mg/l — — Single value
Potassium 2,7 mg/l — — Single value
Total hardness 12 °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://www.wvgn.de/files/content/downloads/Wasseranalysen/2026WWH01.pdf · 25.03.2026 · 10.03.2026 · retrieved on 11/07/2026

Postcodes in this zone: 30851 , 30853 , 30855

Show 10 more supply zones

enercity Hannover gesamt

enercity Hannover

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

Water hardness
12 °dH
Hardness range mittel
Key values enercity Hannover gesamt
Parameter Value Parametric value Share of the parametric value Reference
Nitrate 2,2 mg/l 50 mg/l
4 %
Mean
Lead <0,001 mg/l
below limit of quantification
 10 µg/l
< 10 % *
Mean
Escherichia coli (E. coli) 0 Anzahl/100 ml 0/100 ml — Maximum · Median 0
Sulphate 91 mg/l 250 mg/l
36 %
Mean
Sodium 25 mg/l 200 mg/l
13 %
Mean

* 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 (108 — most recent value per parameter)

Microbiology (2)

Microbiology – enercity Hannover gesamt
Parameter Value Parametric value Share of the parametric value Reference
Escherichia coli (E. coli) 0 Anzahl/100 ml 0/100 ml — Maximum · Median 0
Intestinal enterococci 0 Anzahl/100 ml 0/100 ml — Maximum · Median 0

Chemical parameters (54)

Chemical parameters – enercity Hannover gesamt
Parameter Value Parametric value Share of the parametric value Reference
1,2-dichloroethane <0,0003 mg/l
below limit of quantification
 3 µg/l
< 10 % *
Mean
2,6-Dichlorobenzamide (BAM) <0,00002 mg/l
below limit of quantification
 — — Mean
AMPA <0,00002 mg/l
below limit of quantification
 — — Mean
Antimony <0,001 mg/l
below limit of quantification
 5 µg/l
< 20 % *
Mean
Arsenic <0,001 mg/l
below limit of quantification
 10 µg/l
< 10 % *
Mean
Atrazine <0,00002 mg/l
below limit of quantification
 — — Mean
Bentazone <0,00002 mg/l
below limit of quantification
 — — Mean
Benzene <0,0001 mg/l
below limit of quantification
 1 µg/l
< 10 % *
Mean
Benzo(a)pyrene <0,000003 mg/l
below limit of quantification
 10 ng/l
< 30 % *
Mean
Bisphenol A <0,00005 mg/l
below limit of quantification
 2.5 µg/l
< 2 % *
Mean
Boron <0,05 mg/l
below limit of quantification
 1 mg/l
< 5 % *
Mean
Bromacil <0,000015 mg/l
below limit of quantification
 — — Mean
Bromate <0,0001 mg/l
below limit of quantification
 10 µg/l
< 1 % *
Mean
Cadmium <0,0009 mg/l
below limit of quantification
 3 µg/l
< 30 % *
Mean
Chlorate <0,02 mg/l
below limit of quantification
 70 µg/l
< 29 % *
Mean
Chloridazon <0,00001 mg/l
below limit of quantification
 — — Mean
Chlorite <0,05 mg/l
below limit of quantification
 0.2 mg/l
< 25 % *
Mean
Chlorotoluron <0,00001 mg/l
below limit of quantification
 — — Mean
Chromium <0,0005 mg/l
below limit of quantification
 25 µg/l
< 2 % *
Mean
Copper 0,003 mg/l 2 mg/l
0.2 %
Mean
Cyanide <0,004 mg/l
below limit of quantification
 50 µg/l
< 8 % *
Mean
Desethylatrazine <0,00002 mg/l
below limit of quantification
 — — Mean
Desethylterbuthylazine <0,00002 mg/l
below limit of quantification
 — — Mean
Desisopropylatrazine <0,00002 mg/l
below limit of quantification
 — — Mean
Dichlorprop-P <0,00001 mg/l
below limit of quantification
 — — Mean
Diuron <0,00002 mg/l
below limit of quantification
 — — Mean
Ethidimuron <0,00003 mg/l
below limit of quantification
 — — Mean
Ethofumesate <0,00003 mg/l
below limit of quantification
 — — Mean
Fluoride <0,3 mg/l
below limit of quantification
 1.5 mg/l
< 20 % *
Mean
Glyphosate <0,00001 mg/l
below limit of quantification
 — — Mean
Isoproturon <0,00002 mg/l
below limit of quantification
 — — Mean
Lead <0,001 mg/l
below limit of quantification
 10 µg/l
< 10 % *
Mean
MCPA <0,00003 mg/l
below limit of quantification
 — — Mean
Mecoprop-P <0,00001 mg/l
below limit of quantification
 — — Mean
Mercury <0,0003 mg/l
below limit of quantification
 1 µg/l
< 30 % *
Mean
Metamitron <0,00003 mg/l
below limit of quantification
 — — Mean
Metazachlor <0,00002 mg/l
below limit of quantification
 — — Mean
Metolachlor <0,00002 mg/l
below limit of quantification
 — — Mean
Metoxuron <0,000015 mg/l
below limit of quantification
 — — Mean
Metribuzin <0,00003 mg/l
below limit of quantification
 — — Mean
Nickel <0,001 mg/l
below limit of quantification
 20 µg/l
< 5 % *
Mean
Nitrate 2,2 mg/l 50 mg/l
4 %
Mean
Nitrite <0,03 mg/l
below limit of quantification
 0.5 mg/l
< 6 % *
Mean
Oxadixyl <0,00003 mg/l
below limit of quantification
 — — Mean
Pesticides <BG mg/l
not detectable
 0.1 µg/l — Mean
Pesticides — Total <BG mg/l
not detectable
 0.5 µg/l — Mean
Polycyclic aromatic hydrocarbons <0,00003 mg/l
below limit of quantification
 0.1 µg/l
< 30 % *
Mean
Selenium <0,001 mg/l
below limit of quantification
 10 µg/l
< 10 % *
Mean
Simazine <0,00002 mg/l
below limit of quantification
 — — Mean
Tebuconazole <0,000015 mg/l
below limit of quantification
 — — Mean
Terbuthylazine <0,00002 mg/l
below limit of quantification
 — — Mean
Tetrachloroethene and Trichloroethene (sum) <0,0002 mg/l
below limit of quantification
 10 µg/l
< 2 % *
Mean
Trihalomethanes — Total <0,003 mg/l
below limit of quantification
 50 µg/l
< 6 % *
Mean
Uranium <0,0005 mg/l
below limit of quantification
 10 µg/l
< 5 % *
Mean

* 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 – enercity Hannover gesamt
Parameter Value Parametric value Share of the parametric value Reference
Trifluoroacetic acid (TFA) 0,00113 mg/l 60 µg/l
UBA guide value
2 %
Mean

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 (19)

Metabolites – enercity Hannover gesamt
Parameter Value Parametric value Share of the parametric value Reference
1H-1,2,4-Triazole <0,00001 mg/l
below limit of quantification
 — — Mean
Chlorothalonil M12 0,00004 mg/l — — Mean
Chlorothalonil M4 0,000212 mg/l — — Mean
Desphenyl-chloridazon 0,00019 mg/l — — Mean
Dimethachlor acid CGA 50266 <0,000010 mg/l
below limit of quantification
 — — Mean
Dimethachlor sulfonic acid CGA 354742 <0,000020 mg/l
below limit of quantification
 — — Mean
Dimethachlor sulfonic acid CGA 369873 <0,000020 mg/l
below limit of quantification
 — — Mean
Dimethenamid sulfonic acid M27 <0,000025 mg/l
below limit of quantification
 — — Mean
Dimethylsulfamide (DMS) <0,000020 mg/l
below limit of quantification
 — — Mean
Flufenacet sulfonic acid M2 <0,000010 mg/l
below limit of quantification
 — — Mean
Metalaxyl carboxylic acid CGA 62826 <0,000025 mg/l
below limit of quantification
 — — Mean
Metazachlor metabolite BH 479-11 <0,000010 mg/l
below limit of quantification
 — — Mean
Metazachlor metabolite BH 479-9 <0,000025 mg/l
below limit of quantification
 — — Mean
Metazachlor oxalic acid BH 479-4 0,00005 mg/l — — Mean
Metazachlor sulfonic acid BH 479-8 0,00013 mg/l — — Mean
Methyl-desphenyl-chloridazon 0,000026 mg/l — — Mean
S-metolachlor acid CGA 51202/351916 0,00009 mg/l — — Mean
S-metolachlor sulfonic acid CGA 380168/354743 0,00013 mg/l — — Mean
S-metolachlor sulfonic acid NOA 413173 0,00005 mg/l — — Mean

Indicator parameters (20)

Indicator parameters – enercity Hannover gesamt
Parameter Value Parametric value Share of the parametric value Reference
Aluminium <0,05 mg/l
below limit of quantification
 0.2 mg/l
< 25 % *
Mean
Ammonium <0,04 mg/l
below limit of quantification
 0.5 mg/l
< 8 % *
Mean
Calcite dissolution capacity -2,50 mg/l 5 mg/l CaCO3 — Mean
Chloride 48 mg/l 250 mg/l
19 %
Mean
Clostridium perfringens (including spores) 0 Anzahl/100 ml 0/100 ml — Maximum · Median 0
Coliform bacteria 1 Anzahl/100 ml 0/100 ml above the parametric value — this parameter must not be detectable Maximum · Median 0
Colony count 22 °C 1 Anzahl/ml ohne anormale Veränderung — Mean
Colony count 36 °C 0 Anzahl/ml ohne anormale Veränderung — Mean
Colour 0,20 1/m 0.5 m⁻¹ — Mean
Conductivity (25 °C) 561 µS/cm 2,790 µS/cm — Mean
Iron <0,02 mg/l
below limit of quantification
 0.2 mg/l
< 10 % *
Mean
Manganese <0,015 mg/l
below limit of quantification
 50 µg/l
< 30 % *
Mean
Odour normal für den Verbraucher annehmbar — Mean
pH 7,80 --- 6,5–9,5 — Mean
Sodium 25 mg/l 200 mg/l
13 %
Mean
Sulphate 91 mg/l 250 mg/l
36 %
Mean
Taste normal für den Verbraucher annehmbar — Mean
Temperature 12,3 °C — — Mean
Total organic carbon (TOC) 5,0 mg/l ohne anormale Veränderung — Mean
Turbidity <0,1 NTU
below limit of quantification
 1 NTU — Mean

* 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.

An exceedance of a parametric value does not automatically mean a health risk; the statutory parametric values include safety margins. Assessment and any measures are the responsibility of the competent health authority of the respective country.

Further parameters (12)

Further parameters – enercity Hannover gesamt
Parameter Value Parametric value Share of the parametric value Reference
Acid capacity to pH 4.3 2,34 mmol/l — — Mean
Base capacity to pH 8.2 0,08 mmol/l — — Mean
Calcium 76 mg/l — — Mean
Carbonate hardness 6,4 °dH — — Mean
Hardness range (WRMG) mittel --- — — Mean
Hydrogen carbonate 3,7 mg/l — — Mean
Magnesium 5,8 mg/l — — Mean
Phosphate <0,3 mg/l
below limit of quantification
 — — Mean
Potassium 3,7 mg/l — — Mean
Silicate / silicic acid 5,0 mg/l — — Mean
Spectral absorption coefficient 254 nm (SAC 254) 8,3 1/m — — Mean
Total hardness 12,0 °dH — — Mean

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.enercity.de/assets/cms/enercity-de/Privatkunden/Produkte/Wasser/Downloads/Qualitaet/Trinkwasseranalyse-enercity.pdf · Erstellt im Februar 2026 aus Untersuchungen von Januar bis Dezember des Vorjahres · Januar bis Dezember des Vorjahres · retrieved on 11/07/2026

Postcodes in this zone: 30851 , 30853 , 30855

Garbsen

Wasserverband Garbsen-Neustadt a. Rbge. (WVGN)

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

Water hardness
17 °dH
Hardness range hard
Key values Garbsen
Parameter Value Parametric value Share of the parametric value Reference
Nitrate 7,7 mg/l 50 mg/l
15 %
Single value · 2026-11372
Lead < 0,001 mg/l
below limit of quantification
 10 µg/l
< 10 % *
Single value · 2026-11372
Sulphate 170 mg/l 250 mg/l
68 %
Single value · 2026-11372
Sodium 34 mg/l 200 mg/l
17 %
Single value · 2026-11372

* 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 (52 — most recent value per parameter)

Chemical parameters (31)

Chemical parameters – Garbsen
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 · 2026-11372
Antimony < 0,001 mg/l
below limit of quantification
 5 µg/l
< 20 % *
Single value · 2026-11372
Arsenic < 0,001 mg/l
below limit of quantification
 10 µg/l
< 10 % *
Single value · 2026-11372
Benzene < 0,0001 mg/l
below limit of quantification
 1 µg/l
< 10 % *
Single value · 2026-11372
Benzo(a)pyrene < 0,000003 mg/l
below limit of quantification
 10 ng/l
< 30 % *
Single value · 2026-11372
Benzo(b)fluoranthene < 0,00001 mg/l
below limit of quantification
 — — Single value · 2026-11372
Benzo(ghi)perylene < 0,00001 mg/l
below limit of quantification
 — — Single value · 2026-11372
Benzo(k)fluoranthene < 0,00001 mg/l
below limit of quantification
 — — Single value · 2026-11372
Boron 0,040 mg/l 1 mg/l
4 %
Single value · 2026-11372
Bromate < 0,002 mg/l
below limit of quantification
 10 µg/l
< 20 % *
Single value · 2026-11372
Bromodichloromethane < 0,0001 mg/l
below limit of quantification
 — — Single value · 2026-11372
Cadmium < 0,0003 mg/l
below limit of quantification
 3 µg/l
< 10 % *
Single value · 2026-11372
Chromium < 0,0005 mg/l
below limit of quantification
 25 µg/l
< 2 % *
Single value · 2026-11372
Copper 0,009 mg/l 2 mg/l
0.4 %
Single value · 2026-11372
Cyanide < 0,005 mg/l
below limit of quantification
 50 µg/l
< 10 % *
Single value · 2026-11372
Dibromochloromethane < 0,0001 mg/l
below limit of quantification
 — — Single value · 2026-11372
Fluoride 0,06 mg/l 1.5 mg/l
4 %
Single value · 2026-11372
Indeno(1,2,3-cd)pyrene < 0,00001 mg/l
below limit of quantification
 — — Single value · 2026-11372
Lead < 0,001 mg/l
below limit of quantification
 10 µg/l
< 10 % *
Single value · 2026-11372
Mercury < 0,0001 mg/l
below limit of quantification
 1 µg/l
< 10 % *
Single value · 2026-11372
Nickel 0,001 mg/l 20 µg/l
5 %
Single value · 2026-11372
Nitrate 7,7 mg/l 50 mg/l
15 %
Single value · 2026-11372
Nitrite < 0,01 mg/l
below limit of quantification
 0.5 mg/l
< 2 % *
Single value · 2026-11372
Polycyclic aromatic hydrocarbons u.B. mg/l
not detectable
 0.1 µg/l — Single value · 2026-11372
Selenium < 0,001 mg/l
below limit of quantification
 10 µg/l
< 10 % *
Single value · 2026-11372
Tetrachloroethene < 0,0001 mg/l
below limit of quantification
 — — Single value · 2026-11372
Tribromomethane (bromoform) < 0,0001 mg/l
below limit of quantification
 — — Single value · 2026-11372
Trichloroethene < 0,0001 mg/l
below limit of quantification
 — — Single value · 2026-11372
Trichloromethane (chloroform) < 0,0001 mg/l
below limit of quantification
 — — Single value · 2026-11372
Trihalomethanes — Total u.B. mg/l
not detectable
 50 µg/l — Single value · 2026-11372
Uranium 0,002 mg/l 10 µg/l
20 %
Single value · 2026-11372

* 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 (16)

Indicator parameters – Garbsen
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 · 2026-11372
Ammonium < 0,02 mg/l
below limit of quantification
 0.5 mg/l
< 4 % *
Single value · 2026-11372
Calcite dissolution capacity < 1 mg/l
below limit of quantification
 5 mg/l CaCO3 — Single value · 2026-11372
Chloride 77 mg/l 250 mg/l
31 %
Single value · 2026-11372
Conductivity (25 °C) 790 µS/cm 2,790 µS/cm — Single value · 2026-11372
Iron 0,010 mg/l 0.2 mg/l
5 %
Single value · 2026-11372
Manganese < 0,001 mg/l
below limit of quantification
 50 µg/l
< 2 % *
Single value · 2026-11372
Odour normal für den Verbraucher annehmbar — Single value · 2026-11372
Oxidisability < 1 mg/l
below limit of quantification
 5 mg/l O2 — Single value · 2026-11372
pH 7,9 6,5–9,5 — Single value · 2026-11372
Sodium 34 mg/l 200 mg/l
17 %
Single value · 2026-11372
Sulphate 170 mg/l 250 mg/l
68 %
Single value · 2026-11372
Taste normal für den Verbraucher annehmbar — Single value · 2026-11372
Temperature 10,7 °C — — Single value · 2026-11372
Total organic carbon (TOC) 1,4 mg/l ohne anormale Veränderung — Single value · 2026-11372
Turbidity 0,03 NTU 1 NTU — Single value · 2026-11372

* 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 (5)

Further parameters – Garbsen
Parameter Value Parametric value Share of the parametric value Reference
Calcium 90 mg/l — — Single value · 2026-11372
Carbonate hardness 4,5 °dH — — Single value · 2026-11372
Magnesium 20 mg/l — — Single value · 2026-11372
Potassium 3,5 mg/l — — Single value · 2026-11372
Total hardness 17 °dH — — Single value · 2026-11372

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.wvgn.de/files/content/downloads/Wasseranalysen/2026WWFE01.pdf · 25.03.2026 · 10.03.2026 · retrieved on 11/07/2026

Postcodes in this zone: 30851 , 30853 , 30855

Harzwasserwerke GmbH - Teilgebiete: Ingeln, Össelse, Gleidingen (außer Straße Spindelweg), Teile von Rethen (Anemonenweg 9-23, Hildesheimer Str. 410, 412, 412A, 412B), Seelzer Stadtteile Almhorst, Döteberg, Gümmer, Harenberg, Kirchwehren, Lathwehren, Lohnde, Almhorster Straße, Teil der Straße Vor den Specken

enercity Hannover

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

Water hardness
2.8 °dH
Hardness range weich
Key values Harzwasserwerke GmbH - Teilgebiete: Ingeln, Össelse, Gleidingen (außer Straße Spindelweg), Teile von Rethen (Anemonenweg 9-23, Hildesheimer Str. 410, 412, 412A, 412B), Seelzer Stadtteile Almhorst, Döteberg, Gümmer, Harenberg, Kirchwehren, Lathwehren, Lohnde, Almhorster Straße, Teil der Straße Vor den Specken
Parameter Value Parametric value Share of the parametric value Reference
Nitrate 7,5 mg/l 50 mg/l
15 %
Mean
Lead <0.001 mg/l
below limit of quantification
 10 µg/l
< 10 % *
Mean
Escherichia coli (E. coli) 0 Anzahl/100 ml 0/100 ml — Maximum · Median 0
Sulphate 24,5 mg/l 250 mg/l
10 %
Mean
Sodium 7,3 mg/l 200 mg/l
4 %
Mean

* 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 – Harzwasserwerke GmbH - Teilgebiete: Ingeln, Össelse, Gleidingen (außer Straße Spindelweg), Teile von Rethen (Anemonenweg 9-23, Hildesheimer Str. 410, 412, 412A, 412B), Seelzer Stadtteile Almhorst, Döteberg, Gümmer, Harenberg, Kirchwehren, Lathwehren, Lohnde, Almhorster Straße, Teil der Straße Vor den Specken
Parameter Value Parametric value Share of the parametric value Reference
Escherichia coli (E. coli) 0 Anzahl/100 ml 0/100 ml — Maximum · Median 0
Intestinal enterococci 0 Anzahl/100 ml 0/100 ml — Maximum · Median 0

Chemical parameters (25)

Chemical parameters – Harzwasserwerke GmbH - Teilgebiete: Ingeln, Össelse, Gleidingen (außer Straße Spindelweg), Teile von Rethen (Anemonenweg 9-23, Hildesheimer Str. 410, 412, 412A, 412B), Seelzer Stadtteile Almhorst, Döteberg, Gümmer, Harenberg, Kirchwehren, Lathwehren, Lohnde, Almhorster Straße, Teil der Straße Vor den Specken
Parameter Value Parametric value Share of the parametric value Reference
1,2-dichloroethane <0.0001 mg/l
below limit of quantification
 3 µg/l
< 3 % *
Mean
Antimony <0.0005 mg/l
below limit of quantification
 5 µg/l
< 10 % *
Mean
Arsenic <0.0005 mg/l
below limit of quantification
 10 µg/l
< 5 % *
Mean
Benzene <0.0001 mg/l
below limit of quantification
 1 µg/l
< 10 % *
Mean
Benzo(a)pyrene <0.00001 mg/l
below limit of quantification
 10 ng/l
< 100 % *
Mean
Bisphenol A <0.0001 mg/l
below limit of quantification
 2.5 µg/l
< 4 % *
Mean
Boron <0.05 mg/l
below limit of quantification
 1 mg/l
< 5 % *
Mean
Bromate <0.01 mg/l
below limit of quantification
 10 µg/l
< 100 % *
Mean
Cadmium <0.001 mg/l
below limit of quantification
 3 µg/l
< 33 % *
Mean
Chlorite n.b. mg/l
not determined
 0.2 mg/l — Mean
Chromium <0.001 mg/l
below limit of quantification
 25 µg/l
< 4 % *
Mean
Copper <0.001 mg/l
below limit of quantification
 2 mg/l
< < 0.1 % *
Mean
Cyanide <0.001 mg/l
below limit of quantification
 50 µg/l
< 2 % *
Mean
Fluoride 0,05 mg/l 1.5 mg/l
3 %
Mean
Lead <0.001 mg/l
below limit of quantification
 10 µg/l
< 10 % *
Mean
Mercury <0.0001 mg/l
below limit of quantification
 1 µg/l
< 10 % *
Mean
Nickel <0.001 mg/l
below limit of quantification
 20 µg/l
< 5 % *
Mean
Nitrate 7,5 mg/l 50 mg/l
15 %
Mean
Nitrite 0,002 mg/l 0.5 mg/l
0.4 %
Mean
Pesticides — Total <0,0001 mg/l
below limit of quantification
 0.5 µg/l
< 20 % *
Mean
Polycyclic aromatic hydrocarbons <0.0001 mg/l
below limit of quantification
 0.1 µg/l
< 100 % *
Mean
Selenium <0.0005 mg/l
below limit of quantification
 10 µg/l
< 5 % *
Mean
Tetrachloroethene and Trichloroethene (sum) <0.0001 mg/l
below limit of quantification
 10 µg/l
< 1 % *
Mean
Trihalomethanes — Total 0,0081 mg/l 50 µg/l
16 %
Mean
Uranium <0.0001 mg/l
below limit of quantification
 10 µg/l
< 1 % *
Mean

* 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 – Harzwasserwerke GmbH - Teilgebiete: Ingeln, Össelse, Gleidingen (außer Straße Spindelweg), Teile von Rethen (Anemonenweg 9-23, Hildesheimer Str. 410, 412, 412A, 412B), Seelzer Stadtteile Almhorst, Döteberg, Gümmer, Harenberg, Kirchwehren, Lathwehren, Lohnde, Almhorster Straße, Teil der Straße Vor den Specken
Parameter Value Parametric value Share of the parametric value Reference
Aluminium 0,015 mg/l 0.2 mg/l
8 %
Mean
Ammonium <0.03 mg/l
below limit of quantification
 0.5 mg/l
< 6 % *
Mean
Calcite dissolution capacity -0,5 mg/l 5 mg/l CaCO3 — Mean
Chloride 9,9 mg/l 250 mg/l
4 %
Mean
Clostridium perfringens (including spores) 0 Anzahl/100 ml 0/100 ml — Maximum · Median 0
Coliform bacteria 0 Anzahl/100 ml 0/100 ml — Maximum · Median 0
Colony count 22 °C 0 Anzahl/ml ohne anormale Veränderung — Mean
Colony count 36 °C 0 Anzahl/ml ohne anormale Veränderung — Mean
Colour 0,06 1/m 0.5 m⁻¹ — Mean
Conductivity (25 °C) 159 µS/cm 2,790 µS/cm — Mean
Iron <0.001 mg/l
below limit of quantification
 0.2 mg/l
< 0.5 % *
Mean
Manganese <0.001 mg/l
below limit of quantification
 50 µg/l
< 2 % *
Mean
pH 9,0 6,5–9,5 — Mean
Sodium 7,3 mg/l 200 mg/l
4 %
Mean
Sulphate 24,5 mg/l 250 mg/l
10 %
Mean
Taste ohne qualitativ für den Verbraucher annehmbar — Mean
Temperature 7,9 °C — — Mean
Threshold odour number (TON) 1 TON — — Mean
Total organic carbon (TOC) 1,5 mg/l ohne anormale Veränderung — Mean
Turbidity 0,06 FTU 1 NTU — Mean

* 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 – Harzwasserwerke GmbH - Teilgebiete: Ingeln, Össelse, Gleidingen (außer Straße Spindelweg), Teile von Rethen (Anemonenweg 9-23, Hildesheimer Str. 410, 412, 412A, 412B), Seelzer Stadtteile Almhorst, Döteberg, Gümmer, Harenberg, Kirchwehren, Lathwehren, Lohnde, Almhorster Straße, Teil der Straße Vor den Specken
Parameter Value Parametric value Share of the parametric value Reference
Total chlorine <0.02 mg/l
below limit of quantification
 — — Mean

Further parameters (11)

Further parameters – Harzwasserwerke GmbH - Teilgebiete: Ingeln, Össelse, Gleidingen (außer Straße Spindelweg), Teile von Rethen (Anemonenweg 9-23, Hildesheimer Str. 410, 412, 412A, 412B), Seelzer Stadtteile Almhorst, Döteberg, Gümmer, Harenberg, Kirchwehren, Lathwehren, Lohnde, Almhorster Straße, Teil der Straße Vor den Specken
Parameter Value Parametric value Share of the parametric value Reference
Acid capacity to pH 4.3 0,68 mmol/l — — Mean
Calcium 15,9 mg/l — — Mean
Carbonate hardness 1,9 °dH — — Mean
Hardness range (WRMG) weich — — Mean
Magnesium 2,8 mg/l — — Mean
Oxygen 11,9 mg/l — — Mean
Phosphate <0.005 mg/l
below limit of quantification
 — — Mean
Potassium 0,9 mg/l — — Mean
Silicate / silicic acid 2,6 mg/l — — Mean
Spectral absorption coefficient 254 nm (SAC 254) 2,08 1/m — — Mean
Total hardness 2,8 °dH — — Mean

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.enercity.de/assets/cms/enercity-de/Privatkunden/Produkte/Wasser/Downloads/Qualitaet/Trinkwasseranalyse-HWW.pdf · Erstellt im Februar 2026 · Januar bis Dezember des Vorjahres · retrieved on 11/07/2026

Postcodes in this zone: 30851 , 30853 , 30855

Harzwasserwerke GmbH (Teilgebiete: Ingeln, Össelse, Gleidingen, Teile von Rethen, Seelzer Stadtteile Almhorst, Döteberg, Gümmer, Harenberg, Kirchwehren, Lathwehren, Lohnde)

enercity Hannover

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

Water hardness
2.8 °dH
Hardness range weich
Key values Harzwasserwerke GmbH (Teilgebiete: Ingeln, Össelse, Gleidingen, Teile von Rethen, Seelzer Stadtteile Almhorst, Döteberg, Gümmer, Harenberg, Kirchwehren, Lathwehren, Lohnde)
Parameter Value Parametric value Share of the parametric value Reference
Nitrate 7,5 mg/l 50 mg/l
15 %
Mean
Lead <0.001 mg/l
below limit of quantification
 10 µg/l
< 10 % *
Mean
Escherichia coli (E. coli) 0 Anzahl/100 ml 0/100 ml — Maximum · Median 0
Sulphate 24,5 mg/l 250 mg/l
10 %
Mean
Sodium 7,3 mg/l 200 mg/l
4 %
Mean

* 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 – Harzwasserwerke GmbH (Teilgebiete: Ingeln, Össelse, Gleidingen, Teile von Rethen, Seelzer Stadtteile Almhorst, Döteberg, Gümmer, Harenberg, Kirchwehren, Lathwehren, Lohnde)
Parameter Value Parametric value Share of the parametric value Reference
Escherichia coli (E. coli) 0 Anzahl/100 ml 0/100 ml — Maximum · Median 0
Intestinal enterococci 0 Anzahl/100 ml 0/100 ml — Maximum · Median 0

Chemical parameters (25)

Chemical parameters – Harzwasserwerke GmbH (Teilgebiete: Ingeln, Össelse, Gleidingen, Teile von Rethen, Seelzer Stadtteile Almhorst, Döteberg, Gümmer, Harenberg, Kirchwehren, Lathwehren, Lohnde)
Parameter Value Parametric value Share of the parametric value Reference
1,2-dichloroethane <0.0001 mg/l
below limit of quantification
 3 µg/l
< 3 % *
Mean
Antimony <0.0005 mg/l
below limit of quantification
 5 µg/l
< 10 % *
Mean
Arsenic <0.0005 mg/l
below limit of quantification
 10 µg/l
< 5 % *
Mean
Benzene <0.0001 mg/l
below limit of quantification
 1 µg/l
< 10 % *
Mean
Benzo(a)pyrene <0.00001 mg/l
below limit of quantification
 10 ng/l
< 100 % *
Mean
Bisphenol A <0.0001 mg/l
below limit of quantification
 2.5 µg/l
< 4 % *
Mean
Boron <0.05 mg/l
below limit of quantification
 1 mg/l
< 5 % *
Mean
Bromate <0.01 mg/l
below limit of quantification
 10 µg/l
< 100 % *
Mean
Cadmium <0.001 mg/l
below limit of quantification
 3 µg/l
< 33 % *
Mean
Chlorite n.b. mg/l
not determined
 0.2 mg/l — Mean
Chromium <0.001 mg/l
below limit of quantification
 25 µg/l
< 4 % *
Mean
Copper <0.001 mg/l
below limit of quantification
 2 mg/l
< < 0.1 % *
Mean
Cyanide <0.001 mg/l
below limit of quantification
 50 µg/l
< 2 % *
Mean
Fluoride 0,05 mg/l 1.5 mg/l
3 %
Mean
Lead <0.001 mg/l
below limit of quantification
 10 µg/l
< 10 % *
Mean
Mercury <0.0001 mg/l
below limit of quantification
 1 µg/l
< 10 % *
Mean
Nickel <0.001 mg/l
below limit of quantification
 20 µg/l
< 5 % *
Mean
Nitrate 7,5 mg/l 50 mg/l
15 %
Mean
Nitrite 0,002 mg/l 0.5 mg/l
0.4 %
Mean
Pesticides — Total <0,0001 mg/l
below limit of quantification
 0.5 µg/l
< 20 % *
Mean
Polycyclic aromatic hydrocarbons <0.0001 mg/l
below limit of quantification
 0.1 µg/l
< 100 % *
Mean
Selenium <0.0005 mg/l
below limit of quantification
 10 µg/l
< 5 % *
Mean
Tetrachloroethene and Trichloroethene (sum) <0.0001 mg/l
below limit of quantification
 10 µg/l
< 1 % *
Mean
Trihalomethanes — Total 0,0081 mg/l 50 µg/l
16 %
Mean
Uranium <0.0001 mg/l
below limit of quantification
 10 µg/l
< 1 % *
Mean

* 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 – Harzwasserwerke GmbH (Teilgebiete: Ingeln, Össelse, Gleidingen, Teile von Rethen, Seelzer Stadtteile Almhorst, Döteberg, Gümmer, Harenberg, Kirchwehren, Lathwehren, Lohnde)
Parameter Value Parametric value Share of the parametric value Reference
Aluminium 0,015 mg/l 0.2 mg/l
8 %
Mean
Ammonium <0.03 mg/l
below limit of quantification
 0.5 mg/l
< 6 % *
Mean
Calcite dissolution capacity -0,5 mg/l 5 mg/l CaCO3 — Mean
Chloride 9,9 mg/l 250 mg/l
4 %
Mean
Clostridium perfringens (including spores) 0 Anzahl/100 ml 0/100 ml — Maximum · Median 0
Coliform bacteria 0 Anzahl/100 ml 0/100 ml — Maximum · Median 0
Colony count 22 °C 0 Anzahl/ml ohne anormale Veränderung — Mean
Colony count 36 °C 0 Anzahl/ml ohne anormale Veränderung — Mean
Colour 0,06 1/m 0.5 m⁻¹ — Mean
Conductivity (25 °C) 159 µS/cm 2,790 µS/cm — Mean
Iron <0.001 mg/l
below limit of quantification
 0.2 mg/l
< 0.5 % *
Mean
Manganese <0.001 mg/l
below limit of quantification
 50 µg/l
< 2 % *
Mean
pH 9,0 6,5–9,5 — Mean
Sodium 7,3 mg/l 200 mg/l
4 %
Mean
Sulphate 24,5 mg/l 250 mg/l
10 %
Mean
Taste ohne qualitativ für den Verbraucher annehmbar — Mean
Temperature 7,9 °C — — Mean
Threshold odour number (TON) 1 TON — — Mean
Total organic carbon (TOC) 1,5 mg/l ohne anormale Veränderung — Mean
Turbidity 0,06 FTU 1 NTU — Mean

* 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 – Harzwasserwerke GmbH (Teilgebiete: Ingeln, Össelse, Gleidingen, Teile von Rethen, Seelzer Stadtteile Almhorst, Döteberg, Gümmer, Harenberg, Kirchwehren, Lathwehren, Lohnde)
Parameter Value Parametric value Share of the parametric value Reference
Total chlorine <0.02 mg/l
below limit of quantification
 — — Mean

Further parameters (11)

Further parameters – Harzwasserwerke GmbH (Teilgebiete: Ingeln, Össelse, Gleidingen, Teile von Rethen, Seelzer Stadtteile Almhorst, Döteberg, Gümmer, Harenberg, Kirchwehren, Lathwehren, Lohnde)
Parameter Value Parametric value Share of the parametric value Reference
Acid capacity to pH 4.3 0,68 mmol/l — — Mean
Calcium 15,9 mg/l — — Mean
Carbonate hardness 1,9 °dH — — Mean
Hardness range (WRMG) weich — — Mean
Magnesium 2,8 mg/l — — Mean
Oxygen 11,9 mg/l — — Mean
Phosphate <0.005 mg/l
below limit of quantification
 — — Mean
Potassium 0,9 mg/l — — Mean
Silicate / silicic acid 2,6 mg/l — — Mean
Spectral absorption coefficient 254 nm (SAC 254) 2,08 1/m — — Mean
Total hardness 2,8 °dH — — Mean

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: hannover-2.pdf · Februar 2026 · Januar bis Dezember des Vorjahres · retrieved on 11/07/2026

Postcodes in this zone: 30851 , 30853 , 30855

hemmingen gesamt

enercity Hannover

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 31/12/2023. 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.

Water hardness
13 °dH
Hardness range mittel
Key values hemmingen gesamt
Parameter Value Parametric value Share of the parametric value Reference
Nitrate 3,0 mg/l 50 mg/l
6 %
Mean
Lead <0,001 mg/l
below limit of quantification
 10 µg/l
< 10 % *
Mean
Sulphate 89 mg/l 250 mg/l
36 %
Mean
Sodium 27 mg/l 200 mg/l
13 %
Mean

* 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 (86 — most recent value per parameter)

Chemical parameters (53)

Chemical parameters – hemmingen gesamt
Parameter Value Parametric value Share of the parametric value Reference
1,2-dichloroethane <0,0003 mg/l
below limit of quantification
 3 µg/l
< 10 % *
Mean
2,6-Dichlorobenzamide (BAM) <0,000025 mg/l
below limit of quantification
 — — Mean
AMPA <0,00003 mg/l
below limit of quantification
 — — Mean
Antimony <0,001 mg/l
below limit of quantification
 5 µg/l
< 20 % *
Mean
Arsenic <0,001 mg/l
below limit of quantification
 10 µg/l
< 10 % *
Mean
Atrazine <0,000025 mg/l
below limit of quantification
 — — Mean
Bentazone <0,00002 mg/l
below limit of quantification
 — — Mean
Benzene <0,0001 mg/l
below limit of quantification
 1 µg/l
< 10 % *
Mean
Benzo(a)pyrene <0,000003 mg/l
below limit of quantification
 10 ng/l
< 30 % *
Mean
Boron <0,05 mg/l
below limit of quantification
 1 mg/l
< 5 % *
Mean
Bromacil <0,000025 mg/l
below limit of quantification
 — — Mean
Bromate <0,003 mg/l
below limit of quantification
 10 µg/l
< 30 % *
Mean
Bromoxynil <0,00002 mg/l
below limit of quantification
 — — Mean
Cadmium <0,0009 mg/l
below limit of quantification
 3 µg/l
< 30 % *
Mean
Chloridazon <0,000025 mg/l
below limit of quantification
 — — Mean
Chlorotoluron <0,000025 mg/l
below limit of quantification
 — — Mean
Chromium <0,0005 mg/l
below limit of quantification
 25 µg/l
< 2 % *
Mean
Copper 0,007 mg/l 2 mg/l
0.4 %
Mean
Cyanide <0,004 mg/l
below limit of quantification
 50 µg/l
< 8 % *
Mean
Desethylatrazine <0,000025 mg/l
below limit of quantification
 — — Mean
Desethylterbuthylazine <0,000025 mg/l
below limit of quantification
 — — Mean
Desisopropylatrazine <0,000025 mg/l
below limit of quantification
 — — Mean
Dichlorprop <0,00002 mg/l
below limit of quantification
 — — Mean
Diflufenican <0,000025 mg/l
below limit of quantification
 — — Mean
Diuron <0,000025 mg/l
below limit of quantification
 — — Mean
Ethidimuron <0,000025 mg/l
below limit of quantification
 — — Mean
Ethofumesate <0,000025 mg/l
below limit of quantification
 — — Mean
Fluoride 0,12 mg/l 1.5 mg/l
8 %
Mean
Glyphosate <0,00003 mg/l
below limit of quantification
 — — Mean
Isoproturon <0,000025 mg/l
below limit of quantification
 — — Mean
Lead <0,001 mg/l
below limit of quantification
 10 µg/l
< 10 % *
Mean
MCPA <0,00002 mg/l
below limit of quantification
 — — Mean
Mecoprop <0,00002 mg/l
below limit of quantification
 — — Mean
Mercury <0,0002 mg/l
below limit of quantification
 1 µg/l
< 20 % *
Mean
Metalaxyl <0,000025 mg/l
below limit of quantification
 — — Mean
Metamitron <0,000025 mg/l
below limit of quantification
 — — Mean
Metazachlor 0,00011 mg/l — — Mean
Metazachlor acid 0,00009 mg/l — — Mean
Methabenzthiazuron <0,000025 mg/l
below limit of quantification
 — — Mean
Metolachlor acid 0,00008 mg/l — — Mean
Metoxuron <0,000025 mg/l
below limit of quantification
 — — Mean
Metribuzin <0,000025 mg/l
below limit of quantification
 — — Mean
Nickel 0,002 mg/l 20 µg/l
10 %
Mean
Nitrate 3,0 mg/l 50 mg/l
6 %
Mean
Nitrite <0,03 mg/l
below limit of quantification
 0.5 mg/l
< 6 % *
Mean
Oxadixyl <0,000025 mg/l
below limit of quantification
 — — Mean
Polycyclic aromatic hydrocarbons <0,00003 mg/l
below limit of quantification
 0.1 µg/l
< 30 % *
Mean
Selenium <0,001 mg/l
below limit of quantification
 10 µg/l
< 10 % *
Mean
Simazine <0,000025 mg/l
below limit of quantification
 — — Mean
Terbuthylazine <0,000025 mg/l
below limit of quantification
 — — Mean
Tetrachloroethene and Trichloroethene (sum) <0,0002 mg/l
below limit of quantification
 10 µg/l
< 2 % *
Mean
Trihalomethanes — Total 0,0018 mg/l 50 µg/l
4 %
Mean
Uranium <0,0005 mg/l
below limit of quantification
 10 µg/l
< 5 % *
Mean

* 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 – hemmingen gesamt
Parameter Value Parametric value Share of the parametric value Reference
Trifluoroacetic acid (TFA) 0,00082 mg/l 60 µg/l
UBA guide value
1 %
Mean

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 (5)

Metabolites – hemmingen gesamt
Parameter Value Parametric value Share of the parametric value Reference
1H-1,2,4-Triazole <0,00003 mg/l
below limit of quantification
 — — Mean
Desphenyl-chloridazon 0,00018 mg/l — — Mean
Dimethachlor acid CGA 50266 <0,00002 mg/l
below limit of quantification
 — — Mean
Dimethachlor sulfonic acid CGA 354742 <0,00002 mg/l
below limit of quantification
 — — Mean
Methyl-desphenyl-chloridazon 0,00003 mg/l — — Mean

Indicator parameters (15)

Indicator parameters – hemmingen gesamt
Parameter Value Parametric value Share of the parametric value Reference
Aluminium <0,05 mg/l
below limit of quantification
 0.2 mg/l
< 25 % *
Mean
Ammonium <0,04 mg/l
below limit of quantification
 0.5 mg/l
< 8 % *
Mean
Calcite dissolution capacity <1 mg/l
below limit of quantification
 5 mg/l CaCO3 — Mean
Chloride 46 mg/l 250 mg/l
18 %
Mean
Colour 0,18 1/m 0.5 m⁻¹ — Mean
Conductivity (25 °C) 554 µS/cm 2,790 µS/cm — Mean
Iron <0,02 mg/l
below limit of quantification
 0.2 mg/l
< 10 % *
Mean
Manganese <0,01 mg/l
below limit of quantification
 50 µg/l
< 20 % *
Mean
Odour normal für den Verbraucher annehmbar — Mean
pH 7,70 --- 6,5–9,5 — Mean
Sodium 27 mg/l 200 mg/l
13 %
Mean
Sulphate 89 mg/l 250 mg/l
36 %
Mean
Taste normal für den Verbraucher annehmbar — Mean
Temperature 12,3 °C — — Mean
Turbidity 0,14 NTU 1 NTU — Mean

* 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 (12)

Further parameters – hemmingen gesamt
Parameter Value Parametric value Share of the parametric value Reference
Acid capacity to pH 4.3 2,27 mmol/l — — Mean
Base capacity to pH 8.2 0,08 mmol/l — — Mean
Calcium 81 mg/l — — Mean
Carbonate hardness 6,4 °dH — — Mean
Hardness range (WRMG) mittel — — Mean
Hydrogen carbonate 3,5 mg/l — — Mean
Magnesium 5,8 mg/l — — Mean
Phosphate <0,2 mg/l
below limit of quantification
 — — Mean
Potassium 3,3 mg/l — — Mean
Silicate / silicic acid 5,1 mg/l — — Mean
Spectral absorption coefficient 254 nm (SAC 254) 7,5 1/m — — Mean
Total hardness 13 °dH — — Mean

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.enercity.de/assets/cms/enercity-de/Privatkunden/Produkte/Wasser/Downloads/Qualitaet/trinkwasseranalyse-enercity-wasser.pdf · März 2023 · Januar bis Dezember des Vorjahres · retrieved on 11/07/2026

Postcodes in this zone: 30851 , 30853 , 30855

Kleine Ortsteile: Ingeln, Össelse, Gleidingen (außer Spindelweg), Teile von Rethen, Seelzer Stadtteile Almhorst, Döteberg, Gümmer, Harenberg, Kirchwehren, Lathwehren, Lohnde, Almhorster Straße, Teil Vor den Specken – versorgt mit Trinkwasser der Harzwasserwerke GmbH

enercity Hannover

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

Water hardness
2.8 °dH
Hardness range weich
Key values Kleine Ortsteile: Ingeln, Össelse, Gleidingen (außer Spindelweg), Teile von Rethen, Seelzer Stadtteile Almhorst, Döteberg, Gümmer, Harenberg, Kirchwehren, Lathwehren, Lohnde, Almhorster Straße, Teil Vor den Specken – versorgt mit Trinkwasser der Harzwasserwerke GmbH
Parameter Value Parametric value Share of the parametric value Reference
Nitrate 7,5 mg/l 50 mg/l
15 %
Mean
Lead <0.001 mg/l
below limit of quantification
 10 µg/l
< 10 % *
Mean
Escherichia coli (E. coli) 0 Anzahl/100 ml 0/100 ml — Maximum · Median 0
Sulphate 24,5 mg/l 250 mg/l
10 %
Mean
Sodium 7,3 mg/l 200 mg/l
4 %
Mean

* 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 – Kleine Ortsteile: Ingeln, Össelse, Gleidingen (außer Spindelweg), Teile von Rethen, Seelzer Stadtteile Almhorst, Döteberg, Gümmer, Harenberg, Kirchwehren, Lathwehren, Lohnde, Almhorster Straße, Teil Vor den Specken – versorgt mit Trinkwasser der Harzwasserwerke GmbH
Parameter Value Parametric value Share of the parametric value Reference
Escherichia coli (E. coli) 0 Anzahl/100 ml 0/100 ml — Maximum · Median 0
Intestinal enterococci 0 Anzahl/100 ml 0/100 ml — Maximum · Median 0

Chemical parameters (25)

Chemical parameters – Kleine Ortsteile: Ingeln, Össelse, Gleidingen (außer Spindelweg), Teile von Rethen, Seelzer Stadtteile Almhorst, Döteberg, Gümmer, Harenberg, Kirchwehren, Lathwehren, Lohnde, Almhorster Straße, Teil Vor den Specken – versorgt mit Trinkwasser der Harzwasserwerke GmbH
Parameter Value Parametric value Share of the parametric value Reference
1,2-dichloroethane <0.0001 mg/l
below limit of quantification
 3 µg/l
< 3 % *
Mean
Antimony <0.0005 mg/l
below limit of quantification
 5 µg/l
< 10 % *
Mean
Arsenic <0.0005 mg/l
below limit of quantification
 10 µg/l
< 5 % *
Mean
Benzene <0.0001 mg/l
below limit of quantification
 1 µg/l
< 10 % *
Mean
Benzo(a)pyrene <0.00001 mg/l
below limit of quantification
 10 ng/l
< 100 % *
Mean
Bisphenol A <0.0001 mg/l
below limit of quantification
 2.5 µg/l
< 4 % *
Mean
Boron <0.05 mg/l
below limit of quantification
 1 mg/l
< 5 % *
Mean
Bromate <0.01 mg/l
below limit of quantification
 10 µg/l
< 100 % *
Mean
Cadmium <0.001 mg/l
below limit of quantification
 3 µg/l
< 33 % *
Mean
Chlorite n.b. mg/l
not determined
 0.2 mg/l — Mean
Chromium <0.001 mg/l
below limit of quantification
 25 µg/l
< 4 % *
Mean
Copper <0.001 mg/l
below limit of quantification
 2 mg/l
< < 0.1 % *
Mean
Cyanide <0.001 mg/l
below limit of quantification
 50 µg/l
< 2 % *
Mean
Fluoride 0,05 mg/l 1.5 mg/l
3 %
Mean
Lead <0.001 mg/l
below limit of quantification
 10 µg/l
< 10 % *
Mean
Mercury <0.0001 mg/l
below limit of quantification
 1 µg/l
< 10 % *
Mean
Nickel <0.001 mg/l
below limit of quantification
 20 µg/l
< 5 % *
Mean
Nitrate 7,5 mg/l 50 mg/l
15 %
Mean
Nitrite 0,002 mg/l 0.5 mg/l
0.4 %
Mean
Pesticides — Total <0,0001 mg/l
below limit of quantification
 0.5 µg/l
< 20 % *
Mean
Polycyclic aromatic hydrocarbons <0.0001 mg/l
below limit of quantification
 0.1 µg/l
< 100 % *
Mean
Selenium <0.0005 mg/l
below limit of quantification
 10 µg/l
< 5 % *
Mean
Tetrachloroethene and Trichloroethene (sum) <0.0001 mg/l
below limit of quantification
 10 µg/l
< 1 % *
Mean
Trihalomethanes — Total 0,0081 mg/l 50 µg/l
16 %
Mean
Uranium <0.0001 mg/l
below limit of quantification
 10 µg/l
< 1 % *
Mean

* 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 – Kleine Ortsteile: Ingeln, Össelse, Gleidingen (außer Spindelweg), Teile von Rethen, Seelzer Stadtteile Almhorst, Döteberg, Gümmer, Harenberg, Kirchwehren, Lathwehren, Lohnde, Almhorster Straße, Teil Vor den Specken – versorgt mit Trinkwasser der Harzwasserwerke GmbH
Parameter Value Parametric value Share of the parametric value Reference
Aluminium 0,015 mg/l 0.2 mg/l
8 %
Mean
Ammonium <0.03 mg/l
below limit of quantification
 0.5 mg/l
< 6 % *
Mean
Calcite dissolution capacity -0,5 mg/l 5 mg/l CaCO3 — Mean
Chloride 9,9 mg/l 250 mg/l
4 %
Mean
Clostridium perfringens (including spores) 0 Anzahl/100 ml 0/100 ml — Maximum · Median 0
Coliform bacteria 0 Anzahl/100 ml 0/100 ml — Maximum · Median 0
Colony count 22 °C 0 Anzahl/ml ohne anormale Veränderung — Mean
Colony count 36 °C 0 Anzahl/ml ohne anormale Veränderung — Mean
Colour 0,06 1/m 0.5 m⁻¹ — Mean
Conductivity (25 °C) 159 µS/cm 2,790 µS/cm — Mean
Iron <0.001 mg/l
below limit of quantification
 0.2 mg/l
< 0.5 % *
Mean
Manganese <0.001 mg/l
below limit of quantification
 50 µg/l
< 2 % *
Mean
pH 9,0 6,5–9,5 — Mean
Sodium 7,3 mg/l 200 mg/l
4 %
Mean
Sulphate 24,5 mg/l 250 mg/l
10 %
Mean
Taste ohne qualitativ für den Verbraucher annehmbar — Mean
Temperature 7,9 °C — — Mean
Threshold odour number (TON) 1 TON — — Mean
Total organic carbon (TOC) 1,5 mg/l ohne anormale Veränderung — Mean
Turbidity 0,06 FTU 1 NTU — Mean

* 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 – Kleine Ortsteile: Ingeln, Össelse, Gleidingen (außer Spindelweg), Teile von Rethen, Seelzer Stadtteile Almhorst, Döteberg, Gümmer, Harenberg, Kirchwehren, Lathwehren, Lohnde, Almhorster Straße, Teil Vor den Specken – versorgt mit Trinkwasser der Harzwasserwerke GmbH
Parameter Value Parametric value Share of the parametric value Reference
Total chlorine <0.02 mg/l
below limit of quantification
 — — Mean

Further parameters (11)

Further parameters – Kleine Ortsteile: Ingeln, Össelse, Gleidingen (außer Spindelweg), Teile von Rethen, Seelzer Stadtteile Almhorst, Döteberg, Gümmer, Harenberg, Kirchwehren, Lathwehren, Lohnde, Almhorster Straße, Teil Vor den Specken – versorgt mit Trinkwasser der Harzwasserwerke GmbH
Parameter Value Parametric value Share of the parametric value Reference
Acid capacity to pH 4.3 0,68 mmol/l — — Mean
Calcium 15,9 mg/l — — Mean
Carbonate hardness 1,9 °dH — — Mean
Hardness range (WRMG) weich — — Mean
Magnesium 2,8 mg/l — — Mean
Oxygen 11,9 mg/l — — Mean
Phosphate <0.005 mg/l
below limit of quantification
 — — Mean
Potassium 0,9 mg/l — — Mean
Silicate / silicic acid 2,6 mg/l — — Mean
Spectral absorption coefficient 254 nm (SAC 254) 2,08 1/m — — Mean
Total hardness 2,8 °dH — — Mean

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.enercity.de/assets/cms/enercity-de/Privatkunden/Produkte/Wasser/Downloads/Qualitaet/Trinkwasseranalyse-HWW.pdf · Februar 2026 · Januar bis Dezember des Vorjahres · retrieved on 25/07/2026

Postcodes in this zone: 30851 , 30853 , 30855

laatzen gesamt

enercity Hannover

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

Water hardness
12 °dH
Hardness range mittel
Key values laatzen gesamt
Parameter Value Parametric value Share of the parametric value Reference
Nitrate 2,2 mg/l 50 mg/l
4 %
Mean
Lead <0,001 mg/l
below limit of quantification
 10 µg/l
< 10 % *
Mean
Escherichia coli (E. coli) 0 Anzahl/100 ml 0/100 ml — Maximum · Median 0
Sulphate 91 mg/l 250 mg/l
36 %
Mean
Sodium 25 mg/l 200 mg/l
13 %
Mean

* 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 (108 — most recent value per parameter)

Microbiology (2)

Microbiology – laatzen gesamt
Parameter Value Parametric value Share of the parametric value Reference
Escherichia coli (E. coli) 0 Anzahl/100 ml 0/100 ml — Maximum · Median 0
Intestinal enterococci 0 Anzahl/100 ml 0/100 ml — Maximum · Median 0

Chemical parameters (54)

Chemical parameters – laatzen gesamt
Parameter Value Parametric value Share of the parametric value Reference
1,2-dichloroethane <0,0003 mg/l
below limit of quantification
 3 µg/l
< 10 % *
Mean
2,6-Dichlorobenzamide (BAM) <0,00002 mg/l
below limit of quantification
 — — Mean
AMPA <0,00002 mg/l
below limit of quantification
 — — Mean
Antimony <0,001 mg/l
below limit of quantification
 5 µg/l
< 20 % *
Mean
Arsenic <0,001 mg/l
below limit of quantification
 10 µg/l
< 10 % *
Mean
Atrazine <0,00002 mg/l
below limit of quantification
 — — Mean
Bentazone <0,00002 mg/l
below limit of quantification
 — — Mean
Benzene <0,0001 mg/l
below limit of quantification
 1 µg/l
< 10 % *
Mean
Benzo(a)pyrene <0,000003 mg/l
below limit of quantification
 10 ng/l
< 30 % *
Mean
Bisphenol A <0,00005 mg/l
below limit of quantification
 2.5 µg/l
< 2 % *
Mean
Boron <0,05 mg/l
below limit of quantification
 1 mg/l
< 5 % *
Mean
Bromacil <0,000015 mg/l
below limit of quantification
 — — Mean
Bromate <0,0001 mg/l
below limit of quantification
 10 µg/l
< 1 % *
Mean
Cadmium <0,0009 mg/l
below limit of quantification
 3 µg/l
< 30 % *
Mean
Chlorate <0,02 mg/l
below limit of quantification
 70 µg/l
< 29 % *
Mean
Chloridazon <0,00001 mg/l
below limit of quantification
 — — Mean
Chlorite <0,05 mg/l
below limit of quantification
 0.2 mg/l
< 25 % *
Mean
Chlorotoluron <0,00001 mg/l
below limit of quantification
 — — Mean
Chromium <0,0005 mg/l
below limit of quantification
 25 µg/l
< 2 % *
Mean
Copper 0,003 mg/l 2 mg/l
0.2 %
Mean
Cyanide <0,004 mg/l
below limit of quantification
 50 µg/l
< 8 % *
Mean
Desethylatrazine <0,00002 mg/l
below limit of quantification
 — — Mean
Desethylterbuthylazine <0,00002 mg/l
below limit of quantification
 — — Mean
Desisopropylatrazine <0,00002 mg/l
below limit of quantification
 — — Mean
Dichlorprop-P <0,00001 mg/l
below limit of quantification
 — — Mean
Diuron <0,00002 mg/l
below limit of quantification
 — — Mean
Ethidimuron <0,00003 mg/l
below limit of quantification
 — — Mean
Ethofumesate <0,00003 mg/l
below limit of quantification
 — — Mean
Fluoride <0,3 mg/l
below limit of quantification
 1.5 mg/l
< 20 % *
Mean
Glyphosate <0,00001 mg/l
below limit of quantification
 — — Mean
Isoproturon <0,00002 mg/l
below limit of quantification
 — — Mean
Lead <0,001 mg/l
below limit of quantification
 10 µg/l
< 10 % *
Mean
MCPA <0,00003 mg/l
below limit of quantification
 — — Mean
Mecoprop-P <0,00001 mg/l
below limit of quantification
 — — Mean
Mercury <0,0003 mg/l
below limit of quantification
 1 µg/l
< 30 % *
Mean
Metamitron <0,00003 mg/l
below limit of quantification
 — — Mean
Metazachlor <0,00002 mg/l
below limit of quantification
 — — Mean
Metolachlor <0,00002 mg/l
below limit of quantification
 — — Mean
Metoxuron <0,000015 mg/l
below limit of quantification
 — — Mean
Metribuzin <0,00003 mg/l
below limit of quantification
 — — Mean
Nickel <0,001 mg/l
below limit of quantification
 20 µg/l
< 5 % *
Mean
Nitrate 2,2 mg/l 50 mg/l
4 %
Mean
Nitrite <0,03 mg/l
below limit of quantification
 0.5 mg/l
< 6 % *
Mean
Oxadixyl <0,00003 mg/l
below limit of quantification
 — — Mean
Pesticides <BG mg/l
not detectable
 0.1 µg/l — Mean
Pesticides — Total <BG mg/l
not detectable
 0.5 µg/l — Mean
Polycyclic aromatic hydrocarbons <0,00003 mg/l
below limit of quantification
 0.1 µg/l
< 30 % *
Mean
Selenium <0,001 mg/l
below limit of quantification
 10 µg/l
< 10 % *
Mean
Simazine <0,00002 mg/l
below limit of quantification
 — — Mean
Tebuconazole <0,000015 mg/l
below limit of quantification
 — — Mean
Terbuthylazine <0,00002 mg/l
below limit of quantification
 — — Mean
Tetrachloroethene and Trichloroethene (sum) <0,0002 mg/l
below limit of quantification
 10 µg/l
< 2 % *
Mean
Trihalomethanes — Total <0,003 mg/l
below limit of quantification
 50 µg/l
< 6 % *
Mean
Uranium <0,0005 mg/l
below limit of quantification
 10 µg/l
< 5 % *
Mean

* 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 – laatzen gesamt
Parameter Value Parametric value Share of the parametric value Reference
Trifluoroacetic acid (TFA) 0,00113 mg/l 60 µg/l
UBA guide value
2 %
Mean

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 (19)

Metabolites – laatzen gesamt
Parameter Value Parametric value Share of the parametric value Reference
1H-1,2,4-Triazole <0,00001 mg/l
below limit of quantification
 — — Mean
Chlorothalonil M12 0,00004 mg/l — — Mean
Chlorothalonil M4 0,000212 mg/l — — Mean
Desphenyl-chloridazon 0,00019 mg/l — — Mean
Dimethachlor acid CGA 50266 <0,000010 mg/l
below limit of quantification
 — — Mean
Dimethachlor sulfonic acid CGA 354742 <0,000020 mg/l
below limit of quantification
 — — Mean
Dimethachlor sulfonic acid CGA 369873 <0,000020 mg/l
below limit of quantification
 — — Mean
Dimethenamid sulfonic acid M27 <0,000025 mg/l
below limit of quantification
 — — Mean
Dimethylsulfamide (DMS) <0,000020 mg/l
below limit of quantification
 — — Mean
Flufenacet sulfonic acid M2 <0,000010 mg/l
below limit of quantification
 — — Mean
Metalaxyl carboxylic acid CGA 62826 <0,000025 mg/l
below limit of quantification
 — — Mean
Metazachlor metabolite BH 479-11 <0,000010 mg/l
below limit of quantification
 — — Mean
Metazachlor metabolite BH 479-9 <0,000025 mg/l
below limit of quantification
 — — Mean
Metazachlor oxalic acid BH 479-4 0,00005 mg/l — — Mean
Metazachlor sulfonic acid BH 479-8 0,00013 mg/l — — Mean
Methyl-desphenyl-chloridazon 0,000026 mg/l — — Mean
S-metolachlor acid CGA 51202/351916 0,00009 mg/l — — Mean
S-metolachlor sulfonic acid CGA 380168/354743 0,00013 mg/l — — Mean
S-metolachlor sulfonic acid NOA 413173 0,00005 mg/l — — Mean

Indicator parameters (20)

Indicator parameters – laatzen gesamt
Parameter Value Parametric value Share of the parametric value Reference
Aluminium <0,05 mg/l
below limit of quantification
 0.2 mg/l
< 25 % *
Mean
Ammonium <0,04 mg/l
below limit of quantification
 0.5 mg/l
< 8 % *
Mean
Calcite dissolution capacity -2,50 mg/l 5 mg/l CaCO3 — Mean
Chloride 48 mg/l 250 mg/l
19 %
Mean
Clostridium perfringens (including spores) 0 Anzahl/100 ml 0/100 ml — Maximum · Median 0
Coliform bacteria 1 Anzahl/100 ml 0/100 ml above the parametric value — this parameter must not be detectable Maximum · Median 0
Colony count 22 °C 1 Anzahl/ml ohne anormale Veränderung — Mean
Colony count 36 °C 0 Anzahl/ml ohne anormale Veränderung — Mean
Colour 0,20 1/m 0.5 m⁻¹ — Mean
Conductivity (25 °C) 561 µS/cm 2,790 µS/cm — Mean
Iron <0,02 mg/l
below limit of quantification
 0.2 mg/l
< 10 % *
Mean
Manganese <0,015 mg/l
below limit of quantification
 50 µg/l
< 30 % *
Mean
Odour normal für den Verbraucher annehmbar — Mean
pH 7,80 --- 6,5–9,5 — Mean
Sodium 25 mg/l 200 mg/l
13 %
Mean
Sulphate 91 mg/l 250 mg/l
36 %
Mean
Taste normal für den Verbraucher annehmbar — Mean
Temperature 12,3 °C — — Mean
Total organic carbon (TOC) 5,0 mg/l ohne anormale Veränderung — Mean
Turbidity <0,1 NTU
below limit of quantification
 1 NTU — Mean

* 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.

An exceedance of a parametric value does not automatically mean a health risk; the statutory parametric values include safety margins. Assessment and any measures are the responsibility of the competent health authority of the respective country.

Further parameters (12)

Further parameters – laatzen gesamt
Parameter Value Parametric value Share of the parametric value Reference
Acid capacity to pH 4.3 2,34 mmol/l — — Mean
Base capacity to pH 8.2 0,08 mmol/l — — Mean
Calcium 76 mg/l — — Mean
Carbonate hardness 6,4 °dH — — Mean
Hardness range (WRMG) mittel --- — — Mean
Hydrogen carbonate 3,7 mg/l — — Mean
Magnesium 5,8 mg/l — — Mean
Phosphate <0,3 mg/l
below limit of quantification
 — — Mean
Potassium 3,7 mg/l — — Mean
Silicate / silicic acid 5,0 mg/l — — Mean
Spectral absorption coefficient 254 nm (SAC 254) 8,3 1/m — — Mean
Total hardness 12,0 °dH — — Mean

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.enercity.de/assets/cms/enercity-de/Privatkunden/Produkte/Wasser/Downloads/Qualitaet/Trinkwasseranalyse-enercity.pdf · Erstellt im Februar 2026 aus Untersuchungen von Januar bis Dezember des Vorjahres · Januar bis Dezember des Vorjahres · retrieved on 25/07/2026

Postcodes in this zone: 30851 , 30853 , 30855

Wasserwerk Forst Esloh

Wasserverband Garbsen-Neustadt a. Rbge. (WVGN)

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

Key values Wasserwerk Forst Esloh
Parameter Value Parametric value Share of the parametric value Reference
Nitrate 7,7 mg/l 50 mg/l
15 %
Single value · Wasserwerk Forst Esloh
Sulphate 170,00 mg/l 250 mg/l
68 %
Single value · Wasserwerk Forst Esloh
Show all recorded parameters (6 — most recent value per parameter)

Chemical parameters (1)

Chemical parameters – Wasserwerk Forst Esloh
Parameter Value Parametric value Share of the parametric value Reference
Nitrate 7,7 mg/l 50 mg/l
15 %
Single value · Wasserwerk Forst Esloh

Indicator parameters (3)

Indicator parameters – Wasserwerk Forst Esloh
Parameter Value Parametric value Share of the parametric value Reference
Iron < 0,01 mg/l
below limit of quantification
 0.2 mg/l
< 5 % *
Single value · Wasserwerk Forst Esloh
Manganese < 0,001 mg/l
below limit of quantification
 50 µg/l
< 2 % *
Single value · Wasserwerk Forst Esloh
Sulphate 170,00 mg/l 250 mg/l
68 %
Single value · Wasserwerk Forst Esloh

* 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 (2)

Further parameters – Wasserwerk Forst Esloh
Parameter Value Parametric value Share of the parametric value Reference
Carbonate hardness 0,80 mmol/l (4,5° dH) — — Single value · Wasserwerk Forst Esloh
Total hardness 3,1 mmol/l (17° dH) — — Single value · Wasserwerk Forst Esloh

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.wvgn.de/wassqualitaethaertgrad.html · 05/2025 · retrieved on 11/07/2026

Postcodes in this zone: 30851 , 30853 , 30855

Wasserwerk Hagen

Wasserverband Garbsen-Neustadt a. Rbge. (WVGN)

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

Key values Wasserwerk Hagen
Parameter Value Parametric value Share of the parametric value Reference
Nitrate 40,00 mg/l 50 mg/l
80 %
Single value · Wasserwerk Hagen
Sulphate 65,00 mg/l 250 mg/l
26 %
Single value · Wasserwerk Hagen
Show all recorded parameters (6 — most recent value per parameter)

Chemical parameters (1)

Chemical parameters – Wasserwerk Hagen
Parameter Value Parametric value Share of the parametric value Reference
Nitrate 40,00 mg/l 50 mg/l
80 %
Single value · Wasserwerk Hagen

Indicator parameters (3)

Indicator parameters – Wasserwerk Hagen
Parameter Value Parametric value Share of the parametric value Reference
Iron < 0,005 mg/l
below limit of quantification
 0.2 mg/l
< 3 % *
Single value · Wasserwerk Hagen
Manganese < 0,001 mg/l
below limit of quantification
 50 µg/l
< 2 % *
Single value · Wasserwerk Hagen
Sulphate 65,00 mg/l 250 mg/l
26 %
Single value · Wasserwerk Hagen

* 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 (2)

Further parameters – Wasserwerk Hagen
Parameter Value Parametric value Share of the parametric value Reference
Carbonate hardness 1,1 mmol/l (5,9° dH) — — Single value · Wasserwerk Hagen
Total hardness 2,2 mmol/l (12° dH) — — Single value · Wasserwerk Hagen

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.wvgn.de/wassqualitaethaertgrad.html · 05/2025 · retrieved on 11/07/2026

Postcodes in this zone: 30851 , 30853 , 30855

wedemark gesamt

enercity Hannover

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

Water hardness
11.5 °dH
Hardness range mittel
Key values wedemark gesamt
Parameter Value Parametric value Share of the parametric value Reference
Nitrate 3,1 mg/l 50 mg/l
6 %
Mean
Lead <0,001 mg/l
below limit of quantification
 10 µg/l
< 10 % *
Mean
Escherichia coli (E. coli) 0 Anzahl/100 ml 0/100 ml — Maximum · Median 0
Sulphate 85 mg/l 250 mg/l
34 %
Mean
Sodium 24 mg/l 200 mg/l
12 %
Mean

* 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 (103 — most recent value per parameter)

Microbiology (2)

Microbiology – wedemark gesamt
Parameter Value Parametric value Share of the parametric value Reference
Escherichia coli (E. coli) 0 Anzahl/100 ml 0/100 ml — Maximum · Median 0
Intestinal enterococci 0 Anzahl/100 ml 0/100 ml — Maximum · Median 0

Chemical parameters (50)

Chemical parameters – wedemark gesamt
Parameter Value Parametric value Share of the parametric value Reference
1,2-dichloroethane <0,0003 mg/l
below limit of quantification
 3 µg/l
< 10 % *
Mean
2,6-Dichlorobenzamide (BAM) <0,000025 mg/l
below limit of quantification
 — — Mean
AMPA <0,00005 mg/l
below limit of quantification
 — — Mean
Antimony <0,001 mg/l
below limit of quantification
 5 µg/l
< 20 % *
Mean
Arsenic <0,001 mg/l
below limit of quantification
 10 µg/l
< 10 % *
Mean
Atrazine <0,000025 mg/l
below limit of quantification
 — — Mean
Bentazone <0,00002 mg/l
below limit of quantification
 — — Mean
Benzene <0,0001 mg/l
below limit of quantification
 1 µg/l
< 10 % *
Mean
Benzo(a)pyrene <0,000003 mg/l
below limit of quantification
 10 ng/l
< 30 % *
Mean
Bisphenol A <0,00050 mg/l
below limit of quantification
 2.5 µg/l
< 20 % *
Mean
Boron <0,05 mg/l
below limit of quantification
 1 mg/l
< 5 % *
Mean
Bromacil <0,000025 mg/l
below limit of quantification
 — — Mean
Bromate <0,0025 mg/l
below limit of quantification
 10 µg/l
< 25 % *
Mean
Cadmium <0,001 mg/l
below limit of quantification
 3 µg/l
< 33 % *
Mean
Chloridazon <0,000025 mg/l
below limit of quantification
 — — Mean
Chlorotoluron <0,000025 mg/l
below limit of quantification
 — — Mean
Chromium <0,0005 mg/l
below limit of quantification
 25 µg/l
< 2 % *
Mean
Copper 0,004225 mg/l 2 mg/l
0.2 %
Mean
Cyanide <0,004 mg/l
below limit of quantification
 50 µg/l
< 8 % *
Mean
Desethylatrazine <0,000025 mg/l
below limit of quantification
 — — Mean
Desethylterbuthylazine <0,000025 mg/l
below limit of quantification
 — — Mean
Desisopropylatrazine <0,000025 mg/l
below limit of quantification
 — — Mean
Dichlorprop-P <0,00002 mg/l
below limit of quantification
 — — Mean
Diuron <0,000025 mg/l
below limit of quantification
 — — Mean
Ethidimuron <0,00003 mg/l
below limit of quantification
 — — Mean
Ethofumesate <0,00003 mg/l
below limit of quantification
 — — Mean
Fluoride <0,3 mg/l
below limit of quantification
 1.5 mg/l
< 20 % *
Mean
Glyphosate <0,00005 mg/l
below limit of quantification
 — — Mean
Isoproturon <0,000025 mg/l
below limit of quantification
 — — Mean
Lead <0,001 mg/l
below limit of quantification
 10 µg/l
< 10 % *
Mean
MCPA <0,00003 mg/l
below limit of quantification
 — — Mean
Mecoprop-P <0,00002 mg/l
below limit of quantification
 — — Mean
Mercury <0,0003 mg/l
below limit of quantification
 1 µg/l
< 30 % *
Mean
Metamitron <0,00003 mg/l
below limit of quantification
 — — Mean
Metazachlor <0,000025 mg/l
below limit of quantification
 — — Mean
Metolachlor <0,000025 mg/l
below limit of quantification
 — — Mean
Metoxuron <0,000025 mg/l
below limit of quantification
 — — Mean
Metribuzin <0,00003 mg/l
below limit of quantification
 — — Mean
Nickel <0,001 mg/l
below limit of quantification
 20 µg/l
< 5 % *
Mean
Nitrate 3,1 mg/l 50 mg/l
6 %
Mean
Nitrite <0,03 mg/l
below limit of quantification
 0.5 mg/l
< 6 % *
Mean
Oxadixyl <0,00003 mg/l
below limit of quantification
 — — Mean
Polycyclic aromatic hydrocarbons <0,00003 mg/l
below limit of quantification
 0.1 µg/l
< 30 % *
Mean
Selenium <0,001 mg/l
below limit of quantification
 10 µg/l
< 10 % *
Mean
Simazine <0,000025 mg/l
below limit of quantification
 — — Mean
Tebuconazole <0,000025 mg/l
below limit of quantification
 — — Mean
Terbuthylazine <0,000025 mg/l
below limit of quantification
 — — Mean
Tetrachloroethene and Trichloroethene (sum) <0,0002 mg/l
below limit of quantification
 10 µg/l
< 2 % *
Mean
Trihalomethanes — Total <0,003 mg/l
below limit of quantification
 50 µg/l
< 6 % *
Mean
Uranium <0,0005 mg/l
below limit of quantification
 10 µg/l
< 5 % *
Mean

* 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 – wedemark gesamt
Parameter Value Parametric value Share of the parametric value Reference
Trifluoroacetic acid (TFA) 0,00068 mg/l 60 µg/l
UBA guide value
1 %
Mean

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 (19)

Metabolites – wedemark gesamt
Parameter Value Parametric value Share of the parametric value Reference
1H-1,2,4-Triazole <0,00005 mg/l
below limit of quantification
 — — Mean
Chlorothalonil M12 <0,00002 mg/l
below limit of quantification
 — — Mean
Chlorothalonil M4 0,000105 mg/l — — Mean
Desphenyl-chloridazon 0,00015 mg/l — — Mean
Dimethachlor acid CGA 50266 <0,00002 mg/l
below limit of quantification
 — — Mean
Dimethachlor sulfonic acid CGA 354742 <0,00002 mg/l
below limit of quantification
 — — Mean
Dimethachlor sulfonic acid CGA 369873 <0,000020 mg/l
below limit of quantification
 — — Mean
Dimethenamid sulfonic acid M27 <0,000025 mg/l
below limit of quantification
 — — Mean
Dimethylsulfamide (DMS) <0,000025 mg/l
below limit of quantification
 — — Mean
Flufenacet sulfonic acid M2 <0,000025 mg/l
below limit of quantification
 — — Mean
Metalaxyl carboxylic acid CGA 62826 <0,000025 mg/l
below limit of quantification
 — — Mean
Metazachlor metabolite BH 479-11 <0,00002 mg/l
below limit of quantification
 — — Mean
Metazachlor metabolite BH 479-9 <0,000025 mg/l
below limit of quantification
 — — Mean
Metazachlor oxalic acid BH 479-4 <0,000010 mg/l
below limit of quantification
 — — Mean
Metazachlor sulfonic acid BH 479-8 0,00010 mg/l — — Mean
Methyl-desphenyl-chloridazon 0,000019 mg/l — — Mean
S-metolachlor acid CGA 51202/351916 <0,000010 mg/l
below limit of quantification
 — — Mean
S-metolachlor sulfonic acid CGA 380168/354743 0,00010 mg/l — — Mean
S-metolachlor sulfonic acid NOA 413173 0,00005 mg/l — — Mean

Indicator parameters (19)

Indicator parameters – wedemark gesamt
Parameter Value Parametric value Share of the parametric value Reference
Aluminium <0,050 mg/l
below limit of quantification
 0.2 mg/l
< 25 % *
Mean
Ammonium <0,04 mg/l
below limit of quantification
 0.5 mg/l
< 8 % *
Mean
Calcite dissolution capacity -1,05 mg/l 5 mg/l CaCO3 — Mean
Chloride 44 mg/l 250 mg/l
18 %
Mean
Clostridium perfringens (including spores) 0 Anzahl/100 ml 0/100 ml — Maximum · Median 0
Coliform bacteria 0 Anzahl/100 ml 0/100 ml — Maximum · Median 0
Colony count 22 °C 0 Anzahl/ml ohne anormale Veränderung — Mean
Colony count 36 °C 1 Anzahl/ml ohne anormale Veränderung — Mean
Colour 0,17 1/m 0.5 m⁻¹ — Mean
Conductivity (25 °C) 548 µS/cm 2,790 µS/cm — Mean
Iron <0,020 mg/l
below limit of quantification
 0.2 mg/l
< 10 % *
Mean
Manganese <0,015 mg/l
below limit of quantification
 50 µg/l
< 30 % *
Mean
Odour normal für den Verbraucher annehmbar — Mean
pH 7,76 --- 6,5–9,5 — Mean
Sodium 24 mg/l 200 mg/l
12 %
Mean
Sulphate 85 mg/l 250 mg/l
34 %
Mean
Taste normal für den Verbraucher annehmbar — Mean
Temperature 12,7 °C — — Mean
Turbidity <0,10 NTU
below limit of quantification
 1 NTU — Mean

* 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 (12)

Further parameters – wedemark gesamt
Parameter Value Parametric value Share of the parametric value Reference
Acid capacity to pH 4.3 2,10 mmol/l — — Mean
Base capacity to pH 8.2 0,08 mmol/l — — Mean
Calcium 72 mg/l — — Mean
Carbonate hardness 6,4 °dH — — Mean
Hardness range (WRMG) mittel --- — — Mean
Hydrogen carbonate 3,6 mg/l — — Mean
Magnesium 5,2 mg/l — — Mean
Phosphate <0,3 mg/l
below limit of quantification
 — — Mean
Potassium 3,5 mg/l — — Mean
Silicate / silicic acid 4,7 mg/l — — Mean
Spectral absorption coefficient 254 nm (SAC 254) 7,4 1/m — — Mean
Total hardness 11,5 °dH — — Mean

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.wvn.de/files/Chemie_2025_enercity.pdf · März 2025 · Januar bis Dezember des Vorjahres · retrieved on 11/07/2026

Postcodes in this zone: 30851 , 30853 , 30855

Frequently asked questions about drinking water in Langenhagen

How hard is the water in Langenhagen?
Wasserverband Garbsen-Neustadt a. Rbge. (WVGN) publishes a total hardness of 12 °dH for the supply zone DE Horst (FrielingerStr., Garbsen) (hardness range medium). 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 Langenhagen?
Wasserverband Garbsen-Neustadt a. Rbge. (WVGN) publishes a nitrate value of 40 mg/l for the supply zone DE Horst (FrielingerStr., Garbsen). The statutory parametric value is 50 mg/l; the measured value represents 80 % of the parametric value. Basis: 25.03.2026, retrieved on 11/07/2026.
Who supplies the drinking water in Langenhagen?
Wasserverband Garbsen-Neustadt a. Rbge. (WVGN). The values shown here come from the supply zone DE Horst (FrielingerStr., Garbsen) 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.