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Drinking water in 99310

For this postcode Wasser-/Abwasserzweckverband Arnstadt und Umgebung (WAZV) publishes several supply zones. Which of them serves an individual address is not published — below are the values of the zone with the most documented parameters, the remaining 5 underneath.

How to read the share of the parametric value

12 % Share of the parametric value. The proportion of the permitted maximum that the measured value uses — here 12 %, so just over an eighth.
< 10 % * Below the limit of quantification. The substance was not detectable. The mark shows where the detection limit lies relative to the parametric value — the actual share of the parametric value is below that.

Several samples per year: for chemical parameters the mean value is given, for microbiological ones the highest measured value. There the parametric value is zero — a single finding would disappear in the average, and it is precisely that finding which is the information. Which reference applies is stated in the last column of the table.

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

Water hardness
10.6 °dH
Hardness range medium
Key values arnstadt gesamt
Parameter Value Parametric value Share of the parametric value Reference
Nitrate 14,3 mg/l 50 mg/l
29 %
Mean · VG Arnstadt Stadt / HB Alteburg (ab 12.01.2021)
Escherichia coli (E. coli) 0 KbE/100 ml 0/100 ml Mean · VG Arnstadt Stadt / HB Alteburg (ab 12.01.2021)
Sulphate 30,3 mg/l 250 mg/l
12 %
Mean · VG Arnstadt Stadt / HB Alteburg (ab 12.01.2021)
Sodium 12,5 mg/l 200 mg/l
6 %
Mean · VG Arnstadt Stadt / HB Alteburg (ab 12.01.2021)
Show all recorded parameters (17 — most recent value per parameter)

Microbiology (1)

Microbiology – arnstadt gesamt
Parameter Value Parametric value Share of the parametric value Reference
Escherichia coli (E. coli) 0 KbE/100 ml 0/100 ml Mean · VG Arnstadt Stadt / HB Alteburg (ab 12.01.2021)

Chemical parameters (1)

Chemical parameters – arnstadt gesamt
Parameter Value Parametric value Share of the parametric value Reference
Nitrate 14,3 mg/l 50 mg/l
29 %
Mean · VG Arnstadt Stadt / HB Alteburg (ab 12.01.2021)

Indicator parameters (11)

Indicator parameters – arnstadt gesamt
Parameter Value Parametric value Share of the parametric value Reference
Calcite dissolution capacity -1 mg/l CaCO3 5 mg/l CaCO3 Mean · VG Arnstadt Stadt / HB Alteburg (ab 12.01.2021)
Chloride 16,8 mg/l 250 mg/l
7 %
Mean · VG Arnstadt Stadt / HB Alteburg (ab 12.01.2021)
Coliform bacteria 0 KbE/100 ml 0/100 ml Mean · VG Arnstadt Stadt / HB Alteburg (ab 12.01.2021)
Colony count 22 °C 0 KbE/ml ohne anormale Veränderung Mean · VG Arnstadt Stadt / HB Alteburg (ab 12.01.2021)
Colony count 36 °C 0 KbE/ml ohne anormale Veränderung Mean · VG Arnstadt Stadt / HB Alteburg (ab 12.01.2021)
pH 7,7 pH-Einheiten 6,5–9,5 Mean · VG Arnstadt Stadt / HB Alteburg (ab 12.01.2021)
Sodium 12,5 mg/l 200 mg/l
6 %
Mean · VG Arnstadt Stadt / HB Alteburg (ab 12.01.2021)
Sulphate 30,3 mg/l 250 mg/l
12 %
Mean · VG Arnstadt Stadt / HB Alteburg (ab 12.01.2021)
Temperature 9,6 °C Mean · VG Arnstadt Stadt / HB Alteburg (ab 12.01.2021)
Total organic carbon (TOC) 1,0 mg/l ohne anormale Veränderung Mean · VG Arnstadt Stadt / HB Alteburg (ab 12.01.2021)
Turbidity 0,16 NTU 1 NTU Mean · VG Arnstadt Stadt / HB Alteburg (ab 12.01.2021)

Further parameters (4)

Further parameters – arnstadt gesamt
Parameter Value Parametric value Share of the parametric value Reference
Carbonate hardness 8,6 °dH Mean · VG Arnstadt Stadt / HB Alteburg (ab 12.01.2021)
Magnesium 9,6 mg/l Mean · VG Arnstadt Stadt / HB Alteburg (ab 12.01.2021)
Saturation index 7,65 Mean · VG Arnstadt Stadt / HB Alteburg (ab 12.01.2021)
Total hardness 10,6 °dH Mean · VG Arnstadt Stadt / HB Alteburg (ab 12.01.2021)

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.wazv-arnstadt.de/images/wazv/dokumente/Trinkwasser/Broschuere_Information_TW-Qualitaet_2025-12-19.pdf · Stand: Januar 2026 · 2025 (Mittelwerte) · retrieved on 11/07/2026
Show 5 more supply zones in this postcode

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

Water hardness
4.5 °dH
Hardness range soft
Key values VG Arnstadt Nord Ichtershausen (FW)
Parameter Value Parametric value Share of the parametric value Reference
Nitrate 3,2 mg/l 50 mg/l
6 %
Mean · VG Arnstadt Nord - Ichtershausen (FW)
Escherichia coli (E. coli) 0 KbE/100 ml 0/100 ml Mean · VG Arnstadt Nord - Ichtershausen (FW)
Sulphate 18,0 mg/l 250 mg/l
7 %
Mean · VG Arnstadt Nord - Ichtershausen (FW)
Sodium 12,8 mg/l 200 mg/l
6 %
Mean · VG Arnstadt Nord - Ichtershausen (FW)
Show all recorded parameters (17 — most recent value per parameter)

Microbiology (1)

Microbiology – VG Arnstadt Nord Ichtershausen (FW)
Parameter Value Parametric value Share of the parametric value Reference
Escherichia coli (E. coli) 0 KbE/100 ml 0/100 ml Mean · VG Arnstadt Nord - Ichtershausen (FW)

Chemical parameters (1)

Chemical parameters – VG Arnstadt Nord Ichtershausen (FW)
Parameter Value Parametric value Share of the parametric value Reference
Nitrate 3,2 mg/l 50 mg/l
6 %
Mean · VG Arnstadt Nord - Ichtershausen (FW)

Indicator parameters (11)

Indicator parameters – VG Arnstadt Nord Ichtershausen (FW)
Parameter Value Parametric value Share of the parametric value Reference
Calcite dissolution capacity 0 mg/l CaCO3 5 mg/l CaCO3 Mean · VG Arnstadt Nord - Ichtershausen (FW)
Chloride 13,5 mg/l 250 mg/l
5 %
Mean · VG Arnstadt Nord - Ichtershausen (FW)
Coliform bacteria 0 KbE/100 ml 0/100 ml Mean · VG Arnstadt Nord - Ichtershausen (FW)
Colony count 22 °C 0 KbE/ml ohne anormale Veränderung Mean · VG Arnstadt Nord - Ichtershausen (FW)
Colony count 36 °C 0 KbE/ml ohne anormale Veränderung Mean · VG Arnstadt Nord - Ichtershausen (FW)
pH 8,3 pH-Einheiten 6,5–9,5 Mean · VG Arnstadt Nord - Ichtershausen (FW)
Sodium 12,8 mg/l 200 mg/l
6 %
Mean · VG Arnstadt Nord - Ichtershausen (FW)
Sulphate 18,0 mg/l 250 mg/l
7 %
Mean · VG Arnstadt Nord - Ichtershausen (FW)
Temperature 9,4 °C Mean · VG Arnstadt Nord - Ichtershausen (FW)
Total organic carbon (TOC) 1,1 mg/l ohne anormale Veränderung Mean · VG Arnstadt Nord - Ichtershausen (FW)
Turbidity 0,17 NTU 1 NTU Mean · VG Arnstadt Nord - Ichtershausen (FW)

Further parameters (4)

Further parameters – VG Arnstadt Nord Ichtershausen (FW)
Parameter Value Parametric value Share of the parametric value Reference
Carbonate hardness 4,1 °dH Mean · VG Arnstadt Nord - Ichtershausen (FW)
Magnesium 4,5 mg/l Mean · VG Arnstadt Nord - Ichtershausen (FW)
Saturation index 8,32 Mean · VG Arnstadt Nord - Ichtershausen (FW)
Total hardness 4,5 °dH Mean · VG Arnstadt Nord - Ichtershausen (FW)

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.wazv-arnstadt.de/images/wazv/dokumente/Trinkwasser/Broschuere_Information_TW-Qualitaet_2025-12-19.pdf · Stand: Januar 2026 · 2025 (Mittelwerte) · retrieved on 11/07/2026

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

Water hardness
3.2 °dH
Hardness range soft
Key values Fernwasserbezug TWA Luisenthal 3
Parameter Value Parametric value Share of the parametric value Reference
Nitrate 4,6 mg/l 50 mg/l
9 %
Mean · Fernwasserbezug TWA Luisenthal 3
Escherichia coli (E. coli) 0 KbE/100 ml 0/100 ml Mean · Fernwasserbezug TWA Luisenthal 3
Sulphate 9,9 mg/l 250 mg/l
4 %
Mean · Fernwasserbezug TWA Luisenthal 3
Sodium 14,5 mg/l 200 mg/l
7 %
Mean · Fernwasserbezug TWA Luisenthal 3
Show all recorded parameters (15 — most recent value per parameter)

Microbiology (1)

Microbiology – Fernwasserbezug TWA Luisenthal 3
Parameter Value Parametric value Share of the parametric value Reference
Escherichia coli (E. coli) 0 KbE/100 ml 0/100 ml Mean · Fernwasserbezug TWA Luisenthal 3

Chemical parameters (1)

Chemical parameters – Fernwasserbezug TWA Luisenthal 3
Parameter Value Parametric value Share of the parametric value Reference
Nitrate 4,6 mg/l 50 mg/l
9 %
Mean · Fernwasserbezug TWA Luisenthal 3

Indicator parameters (10)

Indicator parameters – Fernwasserbezug TWA Luisenthal 3
Parameter Value Parametric value Share of the parametric value Reference
Calcite dissolution capacity 0,83 mg/l CaCO3 5 mg/l CaCO3 Mean · Fernwasserbezug TWA Luisenthal 3
Chloride 13,5 mg/l 250 mg/l
5 %
Mean · Fernwasserbezug TWA Luisenthal 3
Coliform bacteria 0 KbE/100 ml 0/100 ml Mean · Fernwasserbezug TWA Luisenthal 3
Colony count 22 °C 0 KbE/ml ohne anormale Veränderung Mean · Fernwasserbezug TWA Luisenthal 3
Colony count 36 °C 0 KbE/ml ohne anormale Veränderung Mean · Fernwasserbezug TWA Luisenthal 3
Sodium 14,5 mg/l 200 mg/l
7 %
Mean · Fernwasserbezug TWA Luisenthal 3
Sulphate 9,9 mg/l 250 mg/l
4 %
Mean · Fernwasserbezug TWA Luisenthal 3
Temperature 4,5 °C Mean · Fernwasserbezug TWA Luisenthal 3
Total organic carbon (TOC) 0,8 mg/l ohne anormale Veränderung Mean · Fernwasserbezug TWA Luisenthal 3
Turbidity 0,06 FNU 1 NTU Mean · Fernwasserbezug TWA Luisenthal 3

Further parameters (3)

Further parameters – Fernwasserbezug TWA Luisenthal 3
Parameter Value Parametric value Share of the parametric value Reference
Carbonate hardness 3,3 °dH (0,6 mmol/l) Mean · Fernwasserbezug TWA Luisenthal 3
Magnesium 1,13 mg/l Mean · Fernwasserbezug TWA Luisenthal 3
Total hardness 3,2 °dH (0,6 mmol/l) Mean · Fernwasserbezug TWA Luisenthal 3

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.wazv-arnstadt.de/images/wazv/dokumente/Trinkwasser/Broschuere_Information_TW-Qualitaet_2025-12-19.pdf · Stand: Januar 2026 · 2025 (Mittelwerte) · retrieved on 11/07/2026

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

Water hardness
8.3 °dH
Hardness range soft
Key values Fernwasserbezug WW Plaue 4
Parameter Value Parametric value Share of the parametric value Reference
Nitrate 1,0 mg/l 50 mg/l
2 %
Mean · Fernwasserbezug WW Plaue 4
Escherichia coli (E. coli) 0 KbE/100 ml 0/100 ml Mean · Fernwasserbezug WW Plaue 4
Sulphate 74,0 mg/l 250 mg/l
30 %
Mean · Fernwasserbezug WW Plaue 4
Sodium 62,1 mg/l 200 mg/l
31 %
Mean · Fernwasserbezug WW Plaue 4
Show all recorded parameters (15 — most recent value per parameter)

Microbiology (1)

Microbiology – Fernwasserbezug WW Plaue 4
Parameter Value Parametric value Share of the parametric value Reference
Escherichia coli (E. coli) 0 KbE/100 ml 0/100 ml Mean · Fernwasserbezug WW Plaue 4

Chemical parameters (1)

Chemical parameters – Fernwasserbezug WW Plaue 4
Parameter Value Parametric value Share of the parametric value Reference
Nitrate 1,0 mg/l 50 mg/l
2 %
Mean · Fernwasserbezug WW Plaue 4

Indicator parameters (10)

Indicator parameters – Fernwasserbezug WW Plaue 4
Parameter Value Parametric value Share of the parametric value Reference
Calcite dissolution capacity 3 mg/l CaCO3 5 mg/l CaCO3 Mean · Fernwasserbezug WW Plaue 4
Chloride 69,0 mg/l 250 mg/l
28 %
Mean · Fernwasserbezug WW Plaue 4
Coliform bacteria 0 KbE/100 ml 0/100 ml Mean · Fernwasserbezug WW Plaue 4
Colony count 22 °C 0 KbE/ml ohne anormale Veränderung Mean · Fernwasserbezug WW Plaue 4
Colony count 36 °C 0 KbE/ml ohne anormale Veränderung Mean · Fernwasserbezug WW Plaue 4
Sodium 62,1 mg/l 200 mg/l
31 %
Mean · Fernwasserbezug WW Plaue 4
Sulphate 74,0 mg/l 250 mg/l
30 %
Mean · Fernwasserbezug WW Plaue 4
Temperature 14,2 °C Mean · Fernwasserbezug WW Plaue 4
Total organic carbon (TOC) 1,0 mg/l ohne anormale Veränderung Mean · Fernwasserbezug WW Plaue 4
Turbidity 0,18 NTU 1 NTU Mean · Fernwasserbezug WW Plaue 4

Further parameters (3)

Further parameters – Fernwasserbezug WW Plaue 4
Parameter Value Parametric value Share of the parametric value Reference
Carbonate hardness 6,9 °dH Mean · Fernwasserbezug WW Plaue 4
Magnesium 9,1 mg/l Mean · Fernwasserbezug WW Plaue 4
Total hardness 8,3 °dH Mean · Fernwasserbezug WW Plaue 4

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.wazv-arnstadt.de/images/wazv/dokumente/Trinkwasser/Broschuere_Information_TW-Qualitaet_2025-12-19.pdf · Stand: Januar 2026 · 2025 (Mittelwerte) · retrieved on 11/07/2026

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

Water hardness
8.5 °dH
Hardness range medium
Key values Wasserwerk Dörnfeld 2
Parameter Value Parametric value Share of the parametric value Reference
Nitrate 1,0 mg/l 50 mg/l
2 %
Mean · Wasserwerk Dörnfeld 2
Escherichia coli (E. coli) 0 KbE/100 ml 0/100 ml Mean · Wasserwerk Dörnfeld 2
Sulphate 41,4 mg/l 250 mg/l
17 %
Mean · Wasserwerk Dörnfeld 2
Sodium 5,8 mg/l 200 mg/l
3 %
Mean · Wasserwerk Dörnfeld 2
Show all recorded parameters (16 — most recent value per parameter)

Microbiology (1)

Microbiology – Wasserwerk Dörnfeld 2
Parameter Value Parametric value Share of the parametric value Reference
Escherichia coli (E. coli) 0 KbE/100 ml 0/100 ml Mean · Wasserwerk Dörnfeld 2

Chemical parameters (1)

Chemical parameters – Wasserwerk Dörnfeld 2
Parameter Value Parametric value Share of the parametric value Reference
Nitrate 1,0 mg/l 50 mg/l
2 %
Mean · Wasserwerk Dörnfeld 2

Indicator parameters (11)

Indicator parameters – Wasserwerk Dörnfeld 2
Parameter Value Parametric value Share of the parametric value Reference
Calcite dissolution capacity 2 mg/l CaCO3 5 mg/l CaCO3 Mean · Wasserwerk Dörnfeld 2
Chloride 14,4 mg/l 250 mg/l
6 %
Mean · Wasserwerk Dörnfeld 2
Coliform bacteria 0 KbE/100 ml 0/100 ml Mean · Wasserwerk Dörnfeld 2
Colony count 22 °C 0 KbE/ml ohne anormale Veränderung Mean · Wasserwerk Dörnfeld 2
Colony count 36 °C 0 KbE/ml ohne anormale Veränderung Mean · Wasserwerk Dörnfeld 2
pH 7,8 pH-Einheiten 6,5–9,5 Mean · Wasserwerk Dörnfeld 2
Sodium 5,8 mg/l 200 mg/l
3 %
Mean · Wasserwerk Dörnfeld 2
Sulphate 41,4 mg/l 250 mg/l
17 %
Mean · Wasserwerk Dörnfeld 2
Temperature 10,5 °C Mean · Wasserwerk Dörnfeld 2
Total organic carbon (TOC) 1,4 mg/l ohne anormale Veränderung Mean · Wasserwerk Dörnfeld 2
Turbidity 0,13 NTU 1 NTU Mean · Wasserwerk Dörnfeld 2

Further parameters (3)

Further parameters – Wasserwerk Dörnfeld 2
Parameter Value Parametric value Share of the parametric value Reference
Carbonate hardness 5,7 °dH Mean · Wasserwerk Dörnfeld 2
Magnesium 13,3 mg/l Mean · Wasserwerk Dörnfeld 2
Total hardness 8,5 °dH Mean · Wasserwerk Dörnfeld 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.

Source: https://www.wazv-arnstadt.de/images/wazv/dokumente/Trinkwasser/Broschuere_Information_TW-Qualitaet_2025-12-19.pdf · Stand: Januar 2026 · 2025 (Mittelwerte) · retrieved on 11/07/2026

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

Water hardness
21.3 °dH
Hardness range hard
Key values Wasserwerk Schönbrunn 1
Parameter Value Parametric value Share of the parametric value Reference
Nitrate 31,5 mg/l 50 mg/l
63 %
Mean · Wasserwerk Schönbrunn 1
Escherichia coli (E. coli) 0 KbE/100 ml 0/100 ml Mean · Wasserwerk Schönbrunn 1
Sulphate 63,6 mg/l 250 mg/l
25 %
Mean · Wasserwerk Schönbrunn 1
Sodium 9,7 mg/l 200 mg/l
5 %
Mean · Wasserwerk Schönbrunn 1
Show all recorded parameters (16 — most recent value per parameter)

Microbiology (1)

Microbiology – Wasserwerk Schönbrunn 1
Parameter Value Parametric value Share of the parametric value Reference
Escherichia coli (E. coli) 0 KbE/100 ml 0/100 ml Mean · Wasserwerk Schönbrunn 1

Chemical parameters (1)

Chemical parameters – Wasserwerk Schönbrunn 1
Parameter Value Parametric value Share of the parametric value Reference
Nitrate 31,5 mg/l 50 mg/l
63 %
Mean · Wasserwerk Schönbrunn 1

Indicator parameters (11)

Indicator parameters – Wasserwerk Schönbrunn 1
Parameter Value Parametric value Share of the parametric value Reference
Calcite dissolution capacity -28 mg/l CaCO3 5 mg/l CaCO3 Mean · Wasserwerk Schönbrunn 1
Chloride 20,8 mg/l 250 mg/l
8 %
Mean · Wasserwerk Schönbrunn 1
Coliform bacteria 0 KbE/100 ml 0/100 ml Mean · Wasserwerk Schönbrunn 1
Colony count 22 °C 0 KbE/ml ohne anormale Veränderung Mean · Wasserwerk Schönbrunn 1
Colony count 36 °C 0 KbE/ml ohne anormale Veränderung Mean · Wasserwerk Schönbrunn 1
pH 7,5 pH-Einheiten 6,5–9,5 Mean · Wasserwerk Schönbrunn 1
Sodium 9,7 mg/l 200 mg/l
5 %
Mean · Wasserwerk Schönbrunn 1
Sulphate 63,6 mg/l 250 mg/l
25 %
Mean · Wasserwerk Schönbrunn 1
Temperature 10,7 °C Mean · Wasserwerk Schönbrunn 1
Total organic carbon (TOC) 1,1 mg/l ohne anormale Veränderung Mean · Wasserwerk Schönbrunn 1
Turbidity 0,12 NTU 1 NTU Mean · Wasserwerk Schönbrunn 1

Further parameters (3)

Further parameters – Wasserwerk Schönbrunn 1
Parameter Value Parametric value Share of the parametric value Reference
Carbonate hardness 16,0 °dH Mean · Wasserwerk Schönbrunn 1
Magnesium 22,0 mg/l Mean · Wasserwerk Schönbrunn 1
Total hardness 21,3 °dH Mean · Wasserwerk Schönbrunn 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.

Source: https://www.wazv-arnstadt.de/images/wazv/dokumente/Trinkwasser/Broschuere_Information_TW-Qualitaet_2025-12-19.pdf · Stand: Januar 2026 · 2025 (Mittelwerte) · retrieved on 11/07/2026

Frequent questions about postcode 99310

How hard is the water in Postcode 99310?
Wasser-/Abwasserzweckverband Arnstadt und Umgebung (WAZV) publishes a total hardness of 10.6 °dH for the supply zone arnstadt gesamt (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: Stand: Januar 2026, retrieved on 11/07/2026.
How much nitrate is in the drinking water in Postcode 99310?
Wasser-/Abwasserzweckverband Arnstadt und Umgebung (WAZV) publishes a nitrate value of 14,3 mg/l for the supply zone arnstadt gesamt. The statutory parametric value is 50 mg/l; the measured value represents 29 % of the parametric value. Basis: Stand: Januar 2026, retrieved on 11/07/2026.
Who supplies the drinking water in Postcode 99310?
Wasser-/Abwasserzweckverband Arnstadt und Umgebung (WAZV). The values shown here come from the supply zone arnstadt gesamt 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.