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Drinking water in Duderstadt

6 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.

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

Water hardness
19.5 °dH
Hardness range 3
Key values Höher Berg
Parameter Value Parametric value Share of the parametric value Reference
Sum of PFAS n. n. mg/l
not detectable
0.1 µg/l Single value · Höher Berg
Nitrate 26 mg/l 50 mg/l
52 %
Maximum · Höher Berg
Lead < 0,001 mg/l
below limit of quantification
10 µg/l
< 10 % *
Single value · Höher Berg
Escherichia coli (E. coli) 0 in 100 ml 0/100 ml Single value · Höher Berg
Sulphate 95 mg/l 250 mg/l
38 %
Maximum · Höher Berg
Sodium 12 mg/l 200 mg/l
6 %
Maximum · Höher Berg

* 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 (54 — most recent value per parameter)

Microbiology (3)

Microbiology – Höher Berg
Parameter Value Parametric value Share of the parametric value Reference
Escherichia coli (E. coli) 0 in 100 ml 0/100 ml Single value · Höher Berg
Intestinal enterococci 0 in 100 ml 0/100 ml Single value · Höher Berg
Somatic coliphages -- Anzahl (PFU)/100 ml
not determined
50/100 ml
UBA guide value
Single value · Höher Berg

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.

Chemical parameters (25)

Chemical parameters – Höher Berg
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 % *
Single value · Höher Berg
Acrylamide < 0,0001 mg/l
below limit of quantification
0.1 µg/l
< 100 % *
Single value · Höher Berg
Antimony < 0,001 mg/l
below limit of quantification
5 µg/l
< 20 % *
Single value · Höher Berg
Arsenic < 0,004 mg/l
below limit of quantification
10 µg/l
< 40 % *
Single value · Höher Berg
Benzene < 0,0002 mg/l
below limit of quantification
1 µg/l
< 20 % *
Single value · Höher Berg
Benzo(a)pyrene < 0,000002 mg/l
below limit of quantification
10 ng/l
< 20 % *
Single value · Höher Berg
Bisphenol A < 0,00001 mg/l
below limit of quantification
2.5 µg/l
< 0.4 % *
Single value · Höher Berg
Boron < 0,05 mg/l
below limit of quantification
1 mg/l
< 5 % *
Single value · Höher Berg
Bromate < 0,001 mg/l
below limit of quantification
10 µg/l
< 10 % *
Single value · Höher Berg
Cadmium < 0,0005 mg/l
below limit of quantification
3 µg/l
< 17 % *
Single value · Höher Berg
Chromium < 0,0009 mg/l
below limit of quantification
25 µg/l
< 4 % *
Single value · Höher Berg
Copper 0,05 mg/l 2 mg/l
3 %
Single value · Höher Berg
Cyanide < 0,005 mg/l
below limit of quantification
50 µg/l
< 10 % *
Single value · Höher Berg
Epichlorohydrin < 0,0001 mg/l
below limit of quantification
0.1 µg/l
< 100 % *
Single value · Höher Berg
Fluoride < 0,2 mg/l
below limit of quantification
1.5 mg/l
< 13 % *
Single value · Höher Berg
Lead < 0,001 mg/l
below limit of quantification
10 µg/l
< 10 % *
Single value · Höher Berg
Mercury < 0,00005 mg/l
below limit of quantification
1 µg/l
< 5 % *
Single value · Höher Berg
Nickel < 0,002 mg/l
below limit of quantification
20 µg/l
< 10 % *
Single value · Höher Berg
Nitrate 26 mg/l 50 mg/l
52 %
Maximum · Höher Berg
Nitrite < 0,02 mg/l
below limit of quantification
0.5 mg/l
< 4 % *
Single value · Höher Berg
Pesticides — Total n. n. mg/l
not detectable
0.5 µg/l Single value · Höher Berg
Selenium < 0,001 mg/l
below limit of quantification
10 µg/l
< 10 % *
Single value · Höher Berg
Tetrachloroethene and Trichloroethene (sum) < 0,0001 mg/l
below limit of quantification
10 µg/l
< 1 % *
Single value · Höher Berg
Trihalomethanes — Total n.n. mg/l
not detectable
50 µg/l Single value · Höher Berg
Uranium < 0,0090 mg/l
below limit of quantification
10 µg/l
< 90 % *
Single value · Höher Berg

* 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 (2)

PFAS – Höher Berg
Parameter Value Parametric value Share of the parametric value Reference
Sum of 4 PFAS --- mg/l
not determined
Single value · Höher Berg
Sum of PFAS n. n. mg/l
not detectable
0.1 µg/l Single value · Höher Berg

Indicator parameters (17)

Indicator parameters – Höher Berg
Parameter Value Parametric value Share of the parametric value Reference
Aluminium < 0,03 mg/l
below limit of quantification
0.2 mg/l
< 15 % *
Single value · Höher Berg
Ammonium < 0,04 mg/l
below limit of quantification
0.5 mg/l
< 8 % *
Single value · Höher Berg
Calcite dissolution capacity 0,229 mg/l CaCO3 5 mg/l CaCO3 Single value · Höher Berg
Chloride 20 mg/l 250 mg/l
8 %
Maximum · Höher Berg
Coliform bacteria 0 Anzahl/100 ml 0/100 ml Single value · Höher Berg
Colony count 22 °C 0 100 /ml ohne anormale Veränderung Single value · Höher Berg
Colony count 36 °C 0 100 /ml ohne anormale Veränderung Single value · Höher Berg
Colour < 0,05 m-1
below limit of quantification
0.5 m⁻¹ Single value · Höher Berg
Conductivity (25 °C) 680 µS/cm 2,790 µS/cm Maximum · Höher Berg
Iron < 0,01 mg/l
below limit of quantification
0.2 mg/l
< 5 % *
Single value · Höher Berg
Manganese < 0,005 mg/l
below limit of quantification
50 µg/l
< 10 % *
Single value · Höher Berg
Odour o. B. für den Verbraucher annehmbar Single value · Höher Berg
Sodium 12 mg/l 200 mg/l
6 %
Maximum · Höher Berg
Sulphate 95 mg/l 250 mg/l
38 %
Maximum · Höher Berg
Taste o. B. für den Verbraucher annehmbar Single value · Höher Berg
Total organic carbon (TOC) 0,6 ohne anormale Veränderung Maximum · Höher Berg
Turbidity < 0,1 NTU
below limit of quantification
1 NTU Single value · Höher Berg

* 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 – Höher Berg
Parameter Value Parametric value Share of the parametric value Reference
Acid capacity to pH 4.3 4,05 mmol/l Single value · Höher Berg
Calcium 101 mg/l Single value · Höher Berg
Carbonate hardness 13 °dH Maximum · Höher Berg
Hardness range (WRMG) 3 Single value · Höher Berg
Magnesium 15,1 mg/l Single value · Höher Berg
Potassium 1,3 mg/l Single value · Höher Berg
Total hardness 19,5 °dH Maximum · Höher Berg

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.

Postcodes in this zone: 37115

Show 5 more supply zones

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

Water hardness
23 °dH
Hardness range 3
Key values Landolfshausen 1
Parameter Value Parametric value Share of the parametric value Reference
Sum of PFAS n. n. mg/l
not detectable
0.1 µg/l Single value · Landolfshausen 1
Nitrate 25 mg/l 50 mg/l
50 %
Maximum · Landolfshausen 1
Lead < 0,001 mg/l
below limit of quantification
10 µg/l
< 10 % *
Single value · Landolfshausen 1
Escherichia coli (E. coli) 0 in 100 ml 0/100 ml Single value · Landolfshausen 1
Sulphate 230 mg/l 250 mg/l
92 %
Maximum · Landolfshausen 1
Sodium 13 mg/l 200 mg/l
7 %
Maximum · Landolfshausen 1

* 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 (54 — most recent value per parameter)

Microbiology (3)

Microbiology – Landolfshausen 1
Parameter Value Parametric value Share of the parametric value Reference
Escherichia coli (E. coli) 0 in 100 ml 0/100 ml Single value · Landolfshausen 1
Intestinal enterococci 0 in 100 ml 0/100 ml Single value · Landolfshausen 1
Somatic coliphages -- Anzahl (PFU)/100 ml
not determined
50/100 ml
UBA guide value
Single value · Landolfshausen 1

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.

Chemical parameters (25)

Chemical parameters – Landolfshausen 1
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 % *
Single value · Landolfshausen 1
Acrylamide < 0,0001 mg/l
below limit of quantification
0.1 µg/l
< 100 % *
Single value · Landolfshausen 1
Antimony < 0,001 mg/l
below limit of quantification
5 µg/l
< 20 % *
Single value · Landolfshausen 1
Arsenic < 0,004 mg/l
below limit of quantification
10 µg/l
< 40 % *
Single value · Landolfshausen 1
Benzene < 0,0002 mg/l
below limit of quantification
1 µg/l
< 20 % *
Single value · Landolfshausen 1
Benzo(a)pyrene < 0,000002 mg/l
below limit of quantification
10 ng/l
< 20 % *
Single value · Landolfshausen 1
Bisphenol A < 0,00001 mg/l
below limit of quantification
2.5 µg/l
< 0.4 % *
Single value · Landolfshausen 1
Boron < 0,06 mg/l
below limit of quantification
1 mg/l
< 6 % *
Single value · Landolfshausen 1
Bromate < 0,001 mg/l
below limit of quantification
10 µg/l
< 10 % *
Single value · Landolfshausen 1
Cadmium < 0,0005 mg/l
below limit of quantification
3 µg/l
< 17 % *
Single value · Landolfshausen 1
Chromium 0,0000011 mg/l 25 µg/l
< 0.1 %
Single value · Landolfshausen 1
Copper < 0,07 mg/l
below limit of quantification
2 mg/l
< 4 % *
Single value · Landolfshausen 1
Cyanide < 0,005 mg/l
below limit of quantification
50 µg/l
< 10 % *
Single value · Landolfshausen 1
Epichlorohydrin < 0,0001 mg/l
below limit of quantification
0.1 µg/l
< 100 % *
Single value · Landolfshausen 1
Fluoride < 0,2 mg/l
below limit of quantification
1.5 mg/l
< 13 % *
Single value · Landolfshausen 1
Lead < 0,001 mg/l
below limit of quantification
10 µg/l
< 10 % *
Single value · Landolfshausen 1
Mercury < 0,00005 mg/l
below limit of quantification
1 µg/l
< 5 % *
Single value · Landolfshausen 1
Nickel < 0,002 mg/l
below limit of quantification
20 µg/l
< 10 % *
Single value · Landolfshausen 1
Nitrate 25 mg/l 50 mg/l
50 %
Maximum · Landolfshausen 1
Nitrite < 0,02 mg/l
below limit of quantification
0.5 mg/l
< 4 % *
Single value · Landolfshausen 1
Pesticides — Total n. n. mg/l
not detectable
0.5 µg/l Single value · Landolfshausen 1
Selenium < 0,001 mg/l
below limit of quantification
10 µg/l
< 10 % *
Single value · Landolfshausen 1
Tetrachloroethene and Trichloroethene (sum) < 0,0001 mg/l
below limit of quantification
10 µg/l
< 1 % *
Single value · Landolfshausen 1
Trihalomethanes — Total n.n. mg/l
not detectable
50 µg/l Single value · Landolfshausen 1
Uranium < 0,0074 mg/l
below limit of quantification
10 µg/l
< 74 % *
Single value · Landolfshausen 1

* 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 (2)

PFAS – Landolfshausen 1
Parameter Value Parametric value Share of the parametric value Reference
Sum of 4 PFAS --- mg/l
not determined
Single value · Landolfshausen 1
Sum of PFAS n. n. mg/l
not detectable
0.1 µg/l Single value · Landolfshausen 1

Indicator parameters (17)

Indicator parameters – Landolfshausen 1
Parameter Value Parametric value Share of the parametric value Reference
Aluminium < 0,03 mg/l
below limit of quantification
0.2 mg/l
< 15 % *
Single value · Landolfshausen 1
Ammonium < 0,04 mg/l
below limit of quantification
0.5 mg/l
< 8 % *
Single value · Landolfshausen 1
Calcite dissolution capacity -13,696 mg/l CaCO3 5 mg/l CaCO3 Single value · Landolfshausen 1
Chloride 21 mg/l 250 mg/l
8 %
Maximum · Landolfshausen 1
Coliform bacteria 0 Anzahl/100 ml 0/100 ml Single value · Landolfshausen 1
Colony count 22 °C 0 100 /ml ohne anormale Veränderung Single value · Landolfshausen 1
Colony count 36 °C 0 100 /ml ohne anormale Veränderung Single value · Landolfshausen 1
Colour < 0,05 m-1
below limit of quantification
0.5 m⁻¹ Single value · Landolfshausen 1
Conductivity (25 °C) 820 µS/cm 2,790 µS/cm Maximum · Landolfshausen 1
Iron < 0,01 mg/l
below limit of quantification
0.2 mg/l
< 5 % *
Single value · Landolfshausen 1
Manganese < 0,005 mg/l
below limit of quantification
50 µg/l
< 10 % *
Single value · Landolfshausen 1
Odour o. B. für den Verbraucher annehmbar Single value · Landolfshausen 1
Sodium 13 mg/l 200 mg/l
7 %
Maximum · Landolfshausen 1
Sulphate 230 mg/l 250 mg/l
92 %
Maximum · Landolfshausen 1
Taste o. B. für den Verbraucher annehmbar Single value · Landolfshausen 1
Total organic carbon (TOC) 0,6 ohne anormale Veränderung Maximum · Landolfshausen 1
Turbidity < 0,1 NTU
below limit of quantification
1 NTU Single value · Landolfshausen 1

* 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 – Landolfshausen 1
Parameter Value Parametric value Share of the parametric value Reference
Acid capacity to pH 4.3 4,37 mmol/l Single value · Landolfshausen 1
Calcium 115 mg/l Single value · Landolfshausen 1
Carbonate hardness 14 °dH Maximum · Landolfshausen 1
Hardness range (WRMG) 3 Single value · Landolfshausen 1
Magnesium 20,3 mg/l Single value · Landolfshausen 1
Potassium 1,7 mg/l Single value · Landolfshausen 1
Total hardness 23 °dH Maximum · Landolfshausen 1

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.

Postcodes in this zone: 37115

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

Water hardness
19 °dH
Hardness range 3
Key values Landolfshausen 2
Parameter Value Parametric value Share of the parametric value Reference
Sum of PFAS n. n. mg/l
not detectable
0.1 µg/l Single value · Landolfshausen 2
Nitrate 32 mg/l 50 mg/l
64 %
Maximum · Landolfshausen 2
Lead < 0,001 mg/l
below limit of quantification
10 µg/l
< 10 % *
Single value · Landolfshausen 2
Escherichia coli (E. coli) 0 in 100 ml 0/100 ml Single value · Landolfshausen 2
Sulphate 88 mg/l 250 mg/l
35 %
Maximum · Landolfshausen 2
Sodium 12 mg/l 200 mg/l
6 %
Maximum · Landolfshausen 2

* 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 (54 — most recent value per parameter)

Microbiology (3)

Microbiology – Landolfshausen 2
Parameter Value Parametric value Share of the parametric value Reference
Escherichia coli (E. coli) 0 in 100 ml 0/100 ml Single value · Landolfshausen 2
Intestinal enterococci 0 in 100 ml 0/100 ml Single value · Landolfshausen 2
Somatic coliphages -- Anzahl (PFU)/100 ml
not determined
50/100 ml
UBA guide value
Single value · Landolfshausen 2

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.

Chemical parameters (25)

Chemical parameters – Landolfshausen 2
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 % *
Single value · Landolfshausen 2
Acrylamide < 0,0001 mg/l
below limit of quantification
0.1 µg/l
< 100 % *
Single value · Landolfshausen 2
Antimony < 0,001 mg/l
below limit of quantification
5 µg/l
< 20 % *
Single value · Landolfshausen 2
Arsenic 0,007 mg/l 10 µg/l
70 %
Single value · Landolfshausen 2
Benzene < 0,0002 mg/l
below limit of quantification
1 µg/l
< 20 % *
Single value · Landolfshausen 2
Benzo(a)pyrene < 0,000002 mg/l
below limit of quantification
10 ng/l
< 20 % *
Single value · Landolfshausen 2
Bisphenol A < 0,00001 mg/l
below limit of quantification
2.5 µg/l
< 0.4 % *
Single value · Landolfshausen 2
Boron < 0,05 mg/l
below limit of quantification
1 mg/l
< 5 % *
Single value · Landolfshausen 2
Bromate < 0,001 mg/l
below limit of quantification
10 µg/l
< 10 % *
Single value · Landolfshausen 2
Cadmium < 0,0005 mg/l
below limit of quantification
3 µg/l
< 17 % *
Single value · Landolfshausen 2
Chromium < 0,0009 mg/l
below limit of quantification
25 µg/l
< 4 % *
Single value · Landolfshausen 2
Copper < 0,1 mg/l
below limit of quantification
2 mg/l
< 5 % *
Single value · Landolfshausen 2
Cyanide < 0,005 mg/l
below limit of quantification
50 µg/l
< 10 % *
Single value · Landolfshausen 2
Epichlorohydrin < 0,0001 mg/l
below limit of quantification
0.1 µg/l
< 100 % *
Single value · Landolfshausen 2
Fluoride < 0,2 mg/l
below limit of quantification
1.5 mg/l
< 13 % *
Single value · Landolfshausen 2
Lead < 0,001 mg/l
below limit of quantification
10 µg/l
< 10 % *
Single value · Landolfshausen 2
Mercury < 0,00005 mg/l
below limit of quantification
1 µg/l
< 5 % *
Single value · Landolfshausen 2
Nickel < 0,004 mg/l
below limit of quantification
20 µg/l
< 20 % *
Single value · Landolfshausen 2
Nitrate 32 mg/l 50 mg/l
64 %
Maximum · Landolfshausen 2
Nitrite < 0,02 mg/l
below limit of quantification
0.5 mg/l
< 4 % *
Single value · Landolfshausen 2
Pesticides — Total n. n. mg/l
not detectable
0.5 µg/l Single value · Landolfshausen 2
Selenium <0,001 mg/l
below limit of quantification
10 µg/l
< 10 % *
Single value · Landolfshausen 2
Tetrachloroethene and Trichloroethene (sum) < 0,0001 mg/l
below limit of quantification
10 µg/l
< 1 % *
Single value · Landolfshausen 2
Trihalomethanes — Total n.n. mg/l
not detectable
50 µg/l Single value · Landolfshausen 2
Uranium < 0,0076 mg/l
below limit of quantification
10 µg/l
< 76 % *
Single value · Landolfshausen 2

* 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 (2)

PFAS – Landolfshausen 2
Parameter Value Parametric value Share of the parametric value Reference
Sum of 4 PFAS --- mg/l
not determined
Single value · Landolfshausen 2
Sum of PFAS n. n. mg/l
not detectable
0.1 µg/l Single value · Landolfshausen 2

Indicator parameters (17)

Indicator parameters – Landolfshausen 2
Parameter Value Parametric value Share of the parametric value Reference
Aluminium 0,03 mg/l 0.2 mg/l
15 %
Single value · Landolfshausen 2
Ammonium < 0,04 mg/l
below limit of quantification
0.5 mg/l
< 8 % *
Single value · Landolfshausen 2
Calcite dissolution capacity -4,873 mg/l CaCO3 5 mg/l CaCO3 Single value · Landolfshausen 2
Chloride 21 mg/l 250 mg/l
8 %
Maximum · Landolfshausen 2
Coliform bacteria 0 Anzahl/100 ml 0/100 ml Single value · Landolfshausen 2
Colony count 22 °C 0 100 /ml ohne anormale Veränderung Single value · Landolfshausen 2
Colony count 36 °C 0 100 /ml ohne anormale Veränderung Single value · Landolfshausen 2
Colour < 0,05 m-1
below limit of quantification
0.5 m⁻¹ Single value · Landolfshausen 2
Conductivity (25 °C) 700 µS/cm 2,790 µS/cm Maximum · Landolfshausen 2
Iron 0,01 mg/l 0.2 mg/l
5 %
Single value · Landolfshausen 2
Manganese < 0,005 mg/l
below limit of quantification
50 µg/l
< 10 % *
Single value · Landolfshausen 2
Odour o. B. für den Verbraucher annehmbar Single value · Landolfshausen 2
Sodium 12 mg/l 200 mg/l
6 %
Maximum · Landolfshausen 2
Sulphate 88 mg/l 250 mg/l
35 %
Maximum · Landolfshausen 2
Taste o. B. für den Verbraucher annehmbar Single value · Landolfshausen 2
Total organic carbon (TOC) 0,8 ohne anormale Veränderung Maximum · Landolfshausen 2
Turbidity < 0,4 NTU
below limit of quantification
1 NTU Single value · Landolfshausen 2

* 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 – Landolfshausen 2
Parameter Value Parametric value Share of the parametric value Reference
Acid capacity to pH 4.3 4,20 mmol/l Single value · Landolfshausen 2
Calcium 103 mg/l Single value · Landolfshausen 2
Carbonate hardness 13 °dH Maximum · Landolfshausen 2
Hardness range (WRMG) 3 Single value · Landolfshausen 2
Magnesium 20,0 mg/l Single value · Landolfshausen 2
Potassium 1,8 mg/l Single value · Landolfshausen 2
Total hardness 19 °dH Maximum · Landolfshausen 2

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.

Postcodes in this zone: 37115

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

Water hardness
16 °dH
Hardness range 3
Key values Rhumspringe/Euzenberg/Breitenberg
Parameter Value Parametric value Share of the parametric value Reference
Sum of PFAS 0,000002 mg/l 0.1 µg/l
2 %
Single value · Rhumspringe/Euzenberg/Breitenberg
Nitrate 26 mg/l 50 mg/l
52 %
Maximum · Rhumspringe/Euzenberg/Breitenberg
Lead < 0,001 mg/l
below limit of quantification
10 µg/l
< 10 % *
Single value · Rhumspringe/Euzenberg/Breitenberg
Escherichia coli (E. coli) 0 in 100 ml 0/100 ml Single value · Rhumspringe/Euzenberg/Breitenberg
Sulphate 140 mg/l 250 mg/l
56 %
Maximum · Rhumspringe/Euzenberg/Breitenberg
Sodium 17 mg/l 200 mg/l
9 %
Maximum · Rhumspringe/Euzenberg/Breitenberg

* 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 (54 — most recent value per parameter)

Microbiology (3)

Microbiology – Rhumspringe/Euzenberg/Breitenberg
Parameter Value Parametric value Share of the parametric value Reference
Escherichia coli (E. coli) 0 in 100 ml 0/100 ml Single value · Rhumspringe/Euzenberg/Breitenberg
Intestinal enterococci 0 in 100 ml 0/100 ml Single value · Rhumspringe/Euzenberg/Breitenberg
Somatic coliphages -- Anzahl (PFU)/100 ml
not determined
50/100 ml
UBA guide value
Single value · Rhumspringe/Euzenberg/Breitenberg

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.

Chemical parameters (25)

Chemical parameters – Rhumspringe/Euzenberg/Breitenberg
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 % *
Single value · Rhumspringe/Euzenberg/Breitenberg
Acrylamide < 0,0001 mg/l
below limit of quantification
0.1 µg/l
< 100 % *
Single value · Rhumspringe/Euzenberg/Breitenberg
Antimony < 0,001 mg/l
below limit of quantification
5 µg/l
< 20 % *
Single value · Rhumspringe/Euzenberg/Breitenberg
Arsenic 0,002 mg/l 10 µg/l
20 %
Single value · Rhumspringe/Euzenberg/Breitenberg
Benzene < 0,0002 mg/l
below limit of quantification
1 µg/l
< 20 % *
Single value · Rhumspringe/Euzenberg/Breitenberg
Benzo(a)pyrene < 0,000002 mg/l
below limit of quantification
10 ng/l
< 20 % *
Single value · Rhumspringe/Euzenberg/Breitenberg
Bisphenol A < 0,00001 mg/l
below limit of quantification
2.5 µg/l
< 0.4 % *
Single value · Rhumspringe/Euzenberg/Breitenberg
Boron 0,05 mg/l 1 mg/l
5 %
Single value · Rhumspringe/Euzenberg/Breitenberg
Bromate < 0,001 mg/l
below limit of quantification
10 µg/l
< 10 % *
Single value · Rhumspringe/Euzenberg/Breitenberg
Cadmium < 0,0005 mg/l
below limit of quantification
3 µg/l
< 17 % *
Single value · Rhumspringe/Euzenberg/Breitenberg
Chromium 0,001 mg/l 25 µg/l
4 %
Single value · Rhumspringe/Euzenberg/Breitenberg
Copper < 0,005 mg/l
below limit of quantification
2 mg/l
< 0.3 % *
Single value · Rhumspringe/Euzenberg/Breitenberg
Cyanide < 0,005 mg/l
below limit of quantification
50 µg/l
< 10 % *
Single value · Rhumspringe/Euzenberg/Breitenberg
Epichlorohydrin < 0,0001 mg/l
below limit of quantification
0.1 µg/l
< 100 % *
Single value · Rhumspringe/Euzenberg/Breitenberg
Fluoride 0,5 mg/l 1.5 mg/l
33 %
Single value · Rhumspringe/Euzenberg/Breitenberg
Lead < 0,001 mg/l
below limit of quantification
10 µg/l
< 10 % *
Single value · Rhumspringe/Euzenberg/Breitenberg
Mercury < 0,00005 mg/l
below limit of quantification
1 µg/l
< 5 % *
Single value · Rhumspringe/Euzenberg/Breitenberg
Nickel < 0,002 mg/l
below limit of quantification
20 µg/l
< 10 % *
Single value · Rhumspringe/Euzenberg/Breitenberg
Nitrate 26 mg/l 50 mg/l
52 %
Maximum · Rhumspringe/Euzenberg/Breitenberg
Nitrite < 0,02 mg/l
below limit of quantification
0.5 mg/l
< 4 % *
Single value · Rhumspringe/Euzenberg/Breitenberg
Pesticides — Total n. n. mg/l
not detectable
0.5 µg/l Single value · Rhumspringe/Euzenberg/Breitenberg
Selenium < 0,002 mg/l
below limit of quantification
10 µg/l
< 20 % *
Single value · Rhumspringe/Euzenberg/Breitenberg
Tetrachloroethene and Trichloroethene (sum) < 0,0001 mg/l
below limit of quantification
10 µg/l
< 1 % *
Single value · Rhumspringe/Euzenberg/Breitenberg
Trihalomethanes — Total n.n. mg/l
not detectable
50 µg/l Single value · Rhumspringe/Euzenberg/Breitenberg
Uranium 0,0012 mg/l 10 µg/l
12 %
Single value · Rhumspringe/Euzenberg/Breitenberg

* 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 (2)

PFAS – Rhumspringe/Euzenberg/Breitenberg
Parameter Value Parametric value Share of the parametric value Reference
Sum of 4 PFAS --- mg/l
not determined
Single value · Rhumspringe/Euzenberg/Breitenberg
Sum of PFAS 0,000002 mg/l 0.1 µg/l
2 %
Single value · Rhumspringe/Euzenberg/Breitenberg

Indicator parameters (17)

Indicator parameters – Rhumspringe/Euzenberg/Breitenberg
Parameter Value Parametric value Share of the parametric value Reference
Aluminium < 0,02 mg/l
below limit of quantification
0.2 mg/l
< 10 % *
Single value · Rhumspringe/Euzenberg/Breitenberg
Ammonium < 0,04 mg/l
below limit of quantification
0.5 mg/l
< 8 % *
Single value · Rhumspringe/Euzenberg/Breitenberg
Calcite dissolution capacity 10,205 mg/l CaCO3 5 mg/l CaCO3 Single value · Rhumspringe/Euzenberg/Breitenberg
Chloride 30 mg/l 250 mg/l
12 %
Maximum · Rhumspringe/Euzenberg/Breitenberg
Coliform bacteria 0 Anzahl/100 ml 0/100 ml Single value · Rhumspringe/Euzenberg/Breitenberg
Colony count 22 °C 0 100 /ml ohne anormale Veränderung Single value · Rhumspringe/Euzenberg/Breitenberg
Colony count 36 °C 0 100 /ml ohne anormale Veränderung Single value · Rhumspringe/Euzenberg/Breitenberg
Colour < 0,05 m-1
below limit of quantification
0.5 m⁻¹ Single value · Rhumspringe/Euzenberg/Breitenberg
Conductivity (25 °C) 650 µS/cm 2,790 µS/cm Maximum · Rhumspringe/Euzenberg/Breitenberg
Iron < 0,01 mg/l
below limit of quantification
0.2 mg/l
< 5 % *
Single value · Rhumspringe/Euzenberg/Breitenberg
Manganese < 0,005 mg/l
below limit of quantification
50 µg/l
< 10 % *
Single value · Rhumspringe/Euzenberg/Breitenberg
Odour o. B. für den Verbraucher annehmbar Single value · Rhumspringe/Euzenberg/Breitenberg
Sodium 17 mg/l 200 mg/l
9 %
Maximum · Rhumspringe/Euzenberg/Breitenberg
Sulphate 140 mg/l 250 mg/l
56 %
Maximum · Rhumspringe/Euzenberg/Breitenberg
Taste o. B. für den Verbraucher annehmbar Single value · Rhumspringe/Euzenberg/Breitenberg
Total organic carbon (TOC) < 0,2
below limit of quantification
ohne anormale Veränderung Single value · Rhumspringe/Euzenberg/Breitenberg
Turbidity < 0,2 NTU
below limit of quantification
1 NTU Single value · Rhumspringe/Euzenberg/Breitenberg

* 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 – Rhumspringe/Euzenberg/Breitenberg
Parameter Value Parametric value Share of the parametric value Reference
Acid capacity to pH 4.3 2,60 mmol/l Single value · Rhumspringe/Euzenberg/Breitenberg
Calcium 74,5 mg/l Single value · Rhumspringe/Euzenberg/Breitenberg
Carbonate hardness 8 °dH Maximum · Rhumspringe/Euzenberg/Breitenberg
Hardness range (WRMG) 3 Single value · Rhumspringe/Euzenberg/Breitenberg
Magnesium 21,3 mg/l Single value · Rhumspringe/Euzenberg/Breitenberg
Potassium 1,9 mg/l Single value · Rhumspringe/Euzenberg/Breitenberg
Total hardness 16 °dH Maximum · Rhumspringe/Euzenberg/Breitenberg

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.

Postcodes in this zone: 37115

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

Water hardness
22.5 °dH
Hardness range 3
Key values Stadtberg
Parameter Value Parametric value Share of the parametric value Reference
Sum of PFAS 0,00001 mg/l 0.1 µg/l
10 %
Single value · Stadtberg
Nitrate 28 mg/l 50 mg/l
56 %
Maximum · Stadtberg
Lead < 0,001 mg/l
below limit of quantification
10 µg/l
< 10 % *
Single value · Stadtberg
Escherichia coli (E. coli) 0 in 100 ml 0/100 ml Single value · Stadtberg
Sulphate 170 mg/l 250 mg/l
68 %
Maximum · Stadtberg
Sodium 26 mg/l 200 mg/l
13 %
Maximum · Stadtberg

* 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 (54 — most recent value per parameter)

Microbiology (3)

Microbiology – Stadtberg
Parameter Value Parametric value Share of the parametric value Reference
Escherichia coli (E. coli) 0 in 100 ml 0/100 ml Single value · Stadtberg
Intestinal enterococci 0 in 100 ml 0/100 ml Single value · Stadtberg
Somatic coliphages -- Anzahl (PFU)/100 ml
not determined
50/100 ml
UBA guide value
Single value · Stadtberg

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.

Chemical parameters (25)

Chemical parameters – Stadtberg
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 % *
Single value · Stadtberg
Acrylamide < 0,0001 mg/l
below limit of quantification
0.1 µg/l
< 100 % *
Single value · Stadtberg
Antimony < 0,001 mg/l
below limit of quantification
5 µg/l
< 20 % *
Single value · Stadtberg
Arsenic < 0,003 mg/l
below limit of quantification
10 µg/l
< 30 % *
Single value · Stadtberg
Benzene < 0,0002 mg/l
below limit of quantification
1 µg/l
< 20 % *
Single value · Stadtberg
Benzo(a)pyrene < 0,000002 mg/l
below limit of quantification
10 ng/l
< 20 % *
Single value · Stadtberg
Bisphenol A < 0,00001 mg/l
below limit of quantification
2.5 µg/l
< 0.4 % *
Single value · Stadtberg
Boron 0,08 mg/l 1 mg/l
8 %
Single value · Stadtberg
Bromate < 0,001 mg/l
below limit of quantification
10 µg/l
< 10 % *
Single value · Stadtberg
Cadmium < 0,0005 mg/l
below limit of quantification
3 µg/l
< 17 % *
Single value · Stadtberg
Chromium < 0,0010 mg/l
below limit of quantification
25 µg/l
< 4 % *
Single value · Stadtberg
Copper < 0,06 mg/l
below limit of quantification
2 mg/l
< 3 % *
Single value · Stadtberg
Cyanide < 0,005 mg/l
below limit of quantification
50 µg/l
< 10 % *
Single value · Stadtberg
Epichlorohydrin < 0,0001 mg/l
below limit of quantification
0.1 µg/l
< 100 % *
Single value · Stadtberg
Fluoride < 0,2 mg/l
below limit of quantification
1.5 mg/l
< 13 % *
Single value · Stadtberg
Lead < 0,001 mg/l
below limit of quantification
10 µg/l
< 10 % *
Single value · Stadtberg
Mercury < 0,00005 mg/l
below limit of quantification
1 µg/l
< 5 % *
Single value · Stadtberg
Nickel < 0,002 mg/l
below limit of quantification
20 µg/l
< 10 % *
Single value · Stadtberg
Nitrate 28 mg/l 50 mg/l
56 %
Maximum · Stadtberg
Nitrite < 0,02 mg/l
below limit of quantification
0.5 mg/l
< 4 % *
Single value · Stadtberg
Pesticides — Total n. n. mg/l
not detectable
0.5 µg/l Single value · Stadtberg
Selenium < 0,001 mg/l
below limit of quantification
10 µg/l
< 10 % *
Single value · Stadtberg
Tetrachloroethene and Trichloroethene (sum) < 0,0001 mg/l
below limit of quantification
10 µg/l
< 1 % *
Single value · Stadtberg
Trihalomethanes — Total n.n. mg/l
not detectable
50 µg/l Single value · Stadtberg
Uranium < 0,0027 mg/l
below limit of quantification
10 µg/l
< 27 % *
Single value · Stadtberg

* 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 (2)

PFAS – Stadtberg
Parameter Value Parametric value Share of the parametric value Reference
Sum of 4 PFAS --- mg/l
not determined
Single value · Stadtberg
Sum of PFAS 0,00001 mg/l 0.1 µg/l
10 %
Single value · Stadtberg

Indicator parameters (17)

Indicator parameters – Stadtberg
Parameter Value Parametric value Share of the parametric value Reference
Aluminium < 0,03 mg/l
below limit of quantification
0.2 mg/l
< 15 % *
Single value · Stadtberg
Ammonium < 0,04 mg/l
below limit of quantification
0.5 mg/l
< 8 % *
Single value · Stadtberg
Calcite dissolution capacity 7,276 mg/l CaCO3 5 mg/l CaCO3 Single value · Stadtberg
Chloride 40 mg/l 250 mg/l
16 %
Maximum · Stadtberg
Coliform bacteria 0 Anzahl/100 ml 0/100 ml Single value · Stadtberg
Colony count 22 °C 0 100 /ml ohne anormale Veränderung Single value · Stadtberg
Colony count 36 °C 0 100 /ml ohne anormale Veränderung Single value · Stadtberg
Colour < 0,05 m-1
below limit of quantification
0.5 m⁻¹ Single value · Stadtberg
Conductivity (25 °C) 800 µS/cm 2,790 µS/cm Maximum · Stadtberg
Iron < 0,01 mg/l
below limit of quantification
0.2 mg/l
< 5 % *
Single value · Stadtberg
Manganese < 0,005 mg/l
below limit of quantification
50 µg/l
< 10 % *
Single value · Stadtberg
Odour o. B. für den Verbraucher annehmbar Single value · Stadtberg
Sodium 26 mg/l 200 mg/l
13 %
Maximum · Stadtberg
Sulphate 170 mg/l 250 mg/l
68 %
Maximum · Stadtberg
Taste o. B. für den Verbraucher annehmbar Single value · Stadtberg
Total organic carbon (TOC) 0,2 ohne anormale Veränderung Single value · Stadtberg
Turbidity < 0,3 NTU
below limit of quantification
1 NTU Single value · Stadtberg

* 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 – Stadtberg
Parameter Value Parametric value Share of the parametric value Reference
Acid capacity to pH 4.3 3,31 mmol/l Single value · Stadtberg
Calcium 94 mg/l Single value · Stadtberg
Carbonate hardness 9,1 °dH Maximum · Stadtberg
Hardness range (WRMG) 3 Single value · Stadtberg
Magnesium 25,4 mg/l Single value · Stadtberg
Potassium 2,2 mg/l Single value · Stadtberg
Total hardness 22,5 °dH Maximum · Stadtberg

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.

Postcodes in this zone: 37115

Versorgungsgruppen (VG): Höher Berg; Rhumspringe/Euzenberg/Breitenberg; Stadtberg; Landolfshausen (1=OT Landolfshausen, 2=OT Falkenhagen/Potzwenden)

Eichsfelder Energie- und Wasserversorgungs GmbH (EEW / EWB Duderstadt)

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

No core values are available for this zone yet.

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

Indicator parameters (1)

Indicator parameters – Versorgungsgruppen (VG): Höher Berg; Rhumspringe/Euzenberg/Breitenberg; Stadtberg; Landolfshausen (1=OT Landolfshausen, 2=OT Falkenhagen/Potzwenden)
Parameter Value Parametric value Share of the parametric value Reference
Oxidisability Keine Bestimmung erforderlich, da TOC bestimmt mg/l O2
not determined
5 mg/l O2 Single value

Radiology (1)

Radiology – Versorgungsgruppen (VG): Höher Berg; Rhumspringe/Euzenberg/Breitenberg; Stadtberg; Landolfshausen (1=OT Landolfshausen, 2=OT Falkenhagen/Potzwenden)
Parameter Value Parametric value Share of the parametric value Reference
Tritium
not determined
Unit not stated in the document
100 Bq/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.

Postcodes in this zone: 37115

Frequently asked questions about drinking water in Duderstadt

How hard is the water in Duderstadt?
Eichsfelder Energie- und Wasserversorgungs GmbH (EEW / EWB Duderstadt) publishes a total hardness of 19.5 °dH for the supply zone Höher Berg (hardness range 3). 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: 05-2026, retrieved on 11/07/2026.
How much nitrate is in the drinking water in Duderstadt?
Eichsfelder Energie- und Wasserversorgungs GmbH (EEW / EWB Duderstadt) publishes a nitrate value of 26 mg/l for the supply zone Höher Berg. The statutory parametric value is 50 mg/l; the measured value represents 52 % of the parametric value. Basis: 05-2026, retrieved on 11/07/2026.
Are PFAS detectable in the drinking water in Duderstadt?
Eichsfelder Energie- und Wasserversorgungs GmbH (EEW / EWB Duderstadt) states for the supply zone Höher Berg that the sum PFAS-20 was not detectable (entry in the report: "n. n."). This is not to be read as "PFAS-free": below the limit of quantification, the measurement cannot make any statement. The statutory parametric value is 0.1 µg/l; the measured value lies below it and cannot be specified more precisely below the limit of quantification. For the sum of the 20 individual substances, this parametric value has applied since 12/01/2026. Basis: 05-2026, retrieved on 11/07/2026.
Who supplies the drinking water in Duderstadt?
Eichsfelder Energie- und Wasserversorgungs GmbH (EEW / EWB Duderstadt). The values shown here come from the supply zone Höher Berg 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.