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Drinking water in Esslingen

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.

Gemeinde Egg - Egg

Wasserversorgung Egg

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

Water hardness
12.7 °dH
Hardness range medium
Key values Gemeinde Egg - Egg
Parameter Value Parametric value Share of the parametric value Reference
Nitrate 3.3 mg/l 40 mg/l
8 %
Mean · Gemeinde Egg - Egg
Escherichia coli (E. coli) nn
not detectable
Unit not stated in the document
0/100 ml Maximum · Median nn · Gemeinde Egg - Egg
Sulphate 10.8 mg/l Mean · Gemeinde Egg - Egg
Sodium 4.7 mg/l 200 mg/l
2 %
Mean · Gemeinde Egg - Egg
Show all recorded parameters (15 — most recent value per parameter)

Microbiology (3)

Microbiology – Gemeinde Egg - Egg
Parameter Value Parametric value Share of the parametric value Reference
Aerobic mesophilic bacteria 0 KBE/ml 300 1/ml Mean · Gemeinde Egg - Egg
Escherichia coli (E. coli) nn
not detectable
Unit not stated in the document
0/100 ml Maximum · Median nn · Gemeinde Egg - Egg
Intestinal enterococci nn
not detectable
Unit not stated in the document
0/100 ml Maximum · Median nn · Gemeinde Egg - Egg

Chemical parameters (2)

Chemical parameters – Gemeinde Egg - Egg
Parameter Value Parametric value Share of the parametric value Reference
Fluoride < 0.1 mg/l
below limit of quantification
1.5 mg/l
< 7 % *
Mean · Gemeinde Egg - Egg
Nitrate 3.3 mg/l 40 mg/l
8 %
Mean · Gemeinde Egg - Egg

* 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 (6)

Indicator parameters – Gemeinde Egg - Egg
Parameter Value Parametric value Share of the parametric value Reference
Chloride 5.9 mg/l Mean · Gemeinde Egg - Egg
Conductivity (25 °C) 394 µS/cm Mean · Gemeinde Egg - Egg
pH 7.5 Mean · Gemeinde Egg - Egg
Sodium 4.7 mg/l 200 mg/l
2 %
Mean · Gemeinde Egg - Egg
Sulphate 10.8 mg/l Mean · Gemeinde Egg - Egg
Temperature 9.2 °C Mean · Gemeinde Egg - Egg

Further parameters (4)

Further parameters – Gemeinde Egg - Egg
Parameter Value Parametric value Share of the parametric value Reference
Calcium 67.6 mg/l Mean · Gemeinde Egg - Egg
Magnesium 14.2 mg/l Mean · Gemeinde Egg - Egg
Potassium 0.9 mg/l Mean · Gemeinde Egg - Egg
Total hardness 22.6 °fH Mean · Gemeinde Egg - Egg

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: 8133

Show 5 more supply zones

Gemeinde Egg - Esslingen

Wasserversorgung Egg

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

Water hardness
11.3 °dH
Hardness range medium
Key values Gemeinde Egg - Esslingen
Parameter Value Parametric value Share of the parametric value Reference
Nitrate 3.2 mg/l 40 mg/l
8 %
Mean · Gemeinde Egg - Esslingen
Escherichia coli (E. coli) nn
not detectable
Unit not stated in the document
0/100 ml Maximum · Median nn · Gemeinde Egg - Esslingen
Sulphate 12.3 mg/l Mean · Gemeinde Egg - Esslingen
Sodium 5.3 mg/l 200 mg/l
3 %
Mean · Gemeinde Egg - Esslingen
Show all recorded parameters (16 — most recent value per parameter)

Microbiology (3)

Microbiology – Gemeinde Egg - Esslingen
Parameter Value Parametric value Share of the parametric value Reference
Aerobic mesophilic bacteria 8 KBE/ml 300 1/ml Mean · Gemeinde Egg - Esslingen
Escherichia coli (E. coli) nn
not detectable
Unit not stated in the document
0/100 ml Maximum · Median nn · Gemeinde Egg - Esslingen
Intestinal enterococci nn
not detectable
Unit not stated in the document
0/100 ml Maximum · Median nn · Gemeinde Egg - Esslingen

Chemical parameters (2)

Chemical parameters – Gemeinde Egg - Esslingen
Parameter Value Parametric value Share of the parametric value Reference
Fluoride < 0.1 mg/l
below limit of quantification
1.5 mg/l
< 7 % *
Mean · Gemeinde Egg - Esslingen
Nitrate 3.2 mg/l 40 mg/l
8 %
Mean · Gemeinde Egg - Esslingen

* 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 (6)

Indicator parameters – Gemeinde Egg - Esslingen
Parameter Value Parametric value Share of the parametric value Reference
Chloride 6.8 mg/l Mean · Gemeinde Egg - Esslingen
Conductivity (25 °C) 358 µS/cm Mean · Gemeinde Egg - Esslingen
pH 7.6 Mean · Gemeinde Egg - Esslingen
Sodium 5.3 mg/l 200 mg/l
3 %
Mean · Gemeinde Egg - Esslingen
Sulphate 12.3 mg/l Mean · Gemeinde Egg - Esslingen
Temperature 9 °C Mean · Gemeinde Egg - Esslingen

Further parameters (5)

Further parameters – Gemeinde Egg - Esslingen
Parameter Value Parametric value Share of the parametric value Reference
Calcium 61.5 mg/l Mean · Gemeinde Egg - Esslingen
Magnesium 11.9 mg/l Mean · Gemeinde Egg - Esslingen
Potassium 1.1 mg/l Mean · Gemeinde Egg - Esslingen
Spectral absorption coefficient 254 nm (SAC 254) 0.7 1/m Mean · Gemeinde Egg - Esslingen
Total hardness 20.2 °fH Mean · Gemeinde Egg - Esslingen

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: 8133

Gemeinde Egg - Guldenen

Wasserversorgung Egg

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

Water hardness
21.5 °dH
Hardness range hard
Key values Gemeinde Egg - Guldenen
Parameter Value Parametric value Share of the parametric value Reference
Nitrate 6.8 mg/l 40 mg/l
17 %
Mean · Gemeinde Egg - Guldenen
Escherichia coli (E. coli) nn
not detectable
Unit not stated in the document
0/100 ml Maximum · Median nn · Gemeinde Egg - Guldenen
Sulphate 6.9 mg/l Mean · Gemeinde Egg - Guldenen
Sodium 19.1 mg/l 200 mg/l
10 %
Mean · Gemeinde Egg - Guldenen
Show all recorded parameters (16 — most recent value per parameter)

Microbiology (3)

Microbiology – Gemeinde Egg - Guldenen
Parameter Value Parametric value Share of the parametric value Reference
Aerobic mesophilic bacteria 3 KBE/ml 300 1/ml Mean · Gemeinde Egg - Guldenen
Escherichia coli (E. coli) nn
not detectable
Unit not stated in the document
0/100 ml Maximum · Median nn · Gemeinde Egg - Guldenen
Intestinal enterococci nn
not detectable
Unit not stated in the document
0/100 ml Maximum · Median nn · Gemeinde Egg - Guldenen

Chemical parameters (2)

Chemical parameters – Gemeinde Egg - Guldenen
Parameter Value Parametric value Share of the parametric value Reference
Fluoride < 0.1 mg/l
below limit of quantification
1.5 mg/l
< 7 % *
Mean · Gemeinde Egg - Guldenen
Nitrate 6.8 mg/l 40 mg/l
17 %
Mean · Gemeinde Egg - Guldenen

* 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 (6)

Indicator parameters – Gemeinde Egg - Guldenen
Parameter Value Parametric value Share of the parametric value Reference
Chloride 33.4 mg/l Mean · Gemeinde Egg - Guldenen
Conductivity (25 °C) 705 µS/cm Mean · Gemeinde Egg - Guldenen
pH 7.4 Mean · Gemeinde Egg - Guldenen
Sodium 19.1 mg/l 200 mg/l
10 %
Mean · Gemeinde Egg - Guldenen
Sulphate 6.9 mg/l Mean · Gemeinde Egg - Guldenen
Temperature 7.9 °C Mean · Gemeinde Egg - Guldenen

Further parameters (5)

Further parameters – Gemeinde Egg - Guldenen
Parameter Value Parametric value Share of the parametric value Reference
Calcium 112 mg/l Mean · Gemeinde Egg - Guldenen
Magnesium 25.4 mg/l Mean · Gemeinde Egg - Guldenen
Potassium 3.5 mg/l Mean · Gemeinde Egg - Guldenen
Spectral absorption coefficient 254 nm (SAC 254) 1.4 1/m Mean · Gemeinde Egg - Guldenen
Total hardness 38.4 °fH Mean · Gemeinde Egg - Guldenen

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: 8133

Gemeinde Egg - Hinteregg

Wasserversorgung Egg

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

Water hardness
15.9 °dH
Hardness range hard
Key values Gemeinde Egg - Hinteregg
Parameter Value Parametric value Share of the parametric value Reference
Nitrate 4.8 mg/l 40 mg/l
12 %
Mean · Gemeinde Egg - Hinteregg
Escherichia coli (E. coli) nn
not detectable
Unit not stated in the document
0/100 ml Maximum · Median nn · Gemeinde Egg - Hinteregg
Sulphate 8.7 mg/l Mean · Gemeinde Egg - Hinteregg
Sodium 4.3 mg/l 200 mg/l
2 %
Mean · Gemeinde Egg - Hinteregg
Show all recorded parameters (16 — most recent value per parameter)

Microbiology (3)

Microbiology – Gemeinde Egg - Hinteregg
Parameter Value Parametric value Share of the parametric value Reference
Aerobic mesophilic bacteria 10 KBE/ml 300 1/ml Mean · Gemeinde Egg - Hinteregg
Escherichia coli (E. coli) nn
not detectable
Unit not stated in the document
0/100 ml Maximum · Median nn · Gemeinde Egg - Hinteregg
Intestinal enterococci nn
not detectable
Unit not stated in the document
0/100 ml Maximum · Median nn · Gemeinde Egg - Hinteregg

Chemical parameters (2)

Chemical parameters – Gemeinde Egg - Hinteregg
Parameter Value Parametric value Share of the parametric value Reference
Fluoride < 0.1 mg/l
below limit of quantification
1.5 mg/l
< 7 % *
Mean · Gemeinde Egg - Hinteregg
Nitrate 4.8 mg/l 40 mg/l
12 %
Mean · Gemeinde Egg - Hinteregg

* 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 (6)

Indicator parameters – Gemeinde Egg - Hinteregg
Parameter Value Parametric value Share of the parametric value Reference
Chloride 5 mg/l Mean · Gemeinde Egg - Hinteregg
Conductivity (25 °C) 491 µS/cm Mean · Gemeinde Egg - Hinteregg
pH 7.5 Mean · Gemeinde Egg - Hinteregg
Sodium 4.3 mg/l 200 mg/l
2 %
Mean · Gemeinde Egg - Hinteregg
Sulphate 8.7 mg/l Mean · Gemeinde Egg - Hinteregg
Temperature 9.2 °C Mean · Gemeinde Egg - Hinteregg

Further parameters (5)

Further parameters – Gemeinde Egg - Hinteregg
Parameter Value Parametric value Share of the parametric value Reference
Calcium 83.9 mg/l Mean · Gemeinde Egg - Hinteregg
Magnesium 18.2 mg/l Mean · Gemeinde Egg - Hinteregg
Potassium 1.2 mg/l Mean · Gemeinde Egg - Hinteregg
Spectral absorption coefficient 254 nm (SAC 254) 0.8 1/m Mean · Gemeinde Egg - Hinteregg
Total hardness 28.4 °fH Mean · Gemeinde Egg - Hinteregg

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: 8133

Gemeinde Egg - Hochwacht

Wasserversorgung Egg

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

Water hardness
14.4 °dH
Hardness range hard
Key values Gemeinde Egg - Hochwacht
Parameter Value Parametric value Share of the parametric value Reference
Nitrate 4.3 mg/l 40 mg/l
11 %
Mean · Gemeinde Egg - Hochwacht
Escherichia coli (E. coli) nn
not detectable
Unit not stated in the document
0/100 ml Maximum · Median nn · Gemeinde Egg - Hochwacht
Sulphate 9.9 mg/l Mean · Gemeinde Egg - Hochwacht
Sodium 5 mg/l 200 mg/l
3 %
Mean · Gemeinde Egg - Hochwacht
Show all recorded parameters (16 — most recent value per parameter)

Microbiology (3)

Microbiology – Gemeinde Egg - Hochwacht
Parameter Value Parametric value Share of the parametric value Reference
Aerobic mesophilic bacteria 23 KBE/ml 300 1/ml Mean · Gemeinde Egg - Hochwacht
Escherichia coli (E. coli) nn
not detectable
Unit not stated in the document
0/100 ml Maximum · Median nn · Gemeinde Egg - Hochwacht
Intestinal enterococci nn
not detectable
Unit not stated in the document
0/100 ml Maximum · Median nn · Gemeinde Egg - Hochwacht

Chemical parameters (2)

Chemical parameters – Gemeinde Egg - Hochwacht
Parameter Value Parametric value Share of the parametric value Reference
Fluoride < 0.1 mg/l
below limit of quantification
1.5 mg/l
< 7 % *
Mean · Gemeinde Egg - Hochwacht
Nitrate 4.3 mg/l 40 mg/l
11 %
Mean · Gemeinde Egg - Hochwacht

* 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 (6)

Indicator parameters – Gemeinde Egg - Hochwacht
Parameter Value Parametric value Share of the parametric value Reference
Chloride 6.1 mg/l Mean · Gemeinde Egg - Hochwacht
Conductivity (25 °C) 440 µS/cm Mean · Gemeinde Egg - Hochwacht
pH 7.6 Mean · Gemeinde Egg - Hochwacht
Sodium 5 mg/l 200 mg/l
3 %
Mean · Gemeinde Egg - Hochwacht
Sulphate 9.9 mg/l Mean · Gemeinde Egg - Hochwacht
Temperature 8.2 °C Mean · Gemeinde Egg - Hochwacht

Further parameters (5)

Further parameters – Gemeinde Egg - Hochwacht
Parameter Value Parametric value Share of the parametric value Reference
Calcium 75.9 mg/l Mean · Gemeinde Egg - Hochwacht
Magnesium 16.4 mg/l Mean · Gemeinde Egg - Hochwacht
Potassium 1 mg/l Mean · Gemeinde Egg - Hochwacht
Spectral absorption coefficient 254 nm (SAC 254) 0.9 1/m Mean · Gemeinde Egg - Hochwacht
Total hardness 25.7 °fH Mean · Gemeinde Egg - Hochwacht

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: 8133

Gemeinde Egg - Vollikon

Wasserversorgung Egg

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

Water hardness
12.7 °dH
Hardness range medium
Key values Gemeinde Egg - Vollikon
Parameter Value Parametric value Share of the parametric value Reference
Nitrate 3.6 mg/l 40 mg/l
9 %
Mean · Gemeinde Egg - Vollikon
Escherichia coli (E. coli) nn
not detectable
Unit not stated in the document
0/100 ml Maximum · Median nn · Gemeinde Egg - Vollikon
Sulphate 11 mg/l Mean · Gemeinde Egg - Vollikon
Sodium 4.8 mg/l 200 mg/l
2 %
Mean · Gemeinde Egg - Vollikon
Show all recorded parameters (16 — most recent value per parameter)

Microbiology (3)

Microbiology – Gemeinde Egg - Vollikon
Parameter Value Parametric value Share of the parametric value Reference
Aerobic mesophilic bacteria 2 KBE/ml 300 1/ml Mean · Gemeinde Egg - Vollikon
Escherichia coli (E. coli) nn
not detectable
Unit not stated in the document
0/100 ml Maximum · Median nn · Gemeinde Egg - Vollikon
Intestinal enterococci nn
not detectable
Unit not stated in the document
0/100 ml Maximum · Median nn · Gemeinde Egg - Vollikon

Chemical parameters (2)

Chemical parameters – Gemeinde Egg - Vollikon
Parameter Value Parametric value Share of the parametric value Reference
Fluoride < 0.1 mg/l
below limit of quantification
1.5 mg/l
< 7 % *
Mean · Gemeinde Egg - Vollikon
Nitrate 3.6 mg/l 40 mg/l
9 %
Mean · Gemeinde Egg - Vollikon

* 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 (6)

Indicator parameters – Gemeinde Egg - Vollikon
Parameter Value Parametric value Share of the parametric value Reference
Chloride 6 mg/l Mean · Gemeinde Egg - Vollikon
Conductivity (25 °C) 395 µS/cm Mean · Gemeinde Egg - Vollikon
pH 7.6 Mean · Gemeinde Egg - Vollikon
Sodium 4.8 mg/l 200 mg/l
2 %
Mean · Gemeinde Egg - Vollikon
Sulphate 11 mg/l Mean · Gemeinde Egg - Vollikon
Temperature 9.4 °C Mean · Gemeinde Egg - Vollikon

Further parameters (5)

Further parameters – Gemeinde Egg - Vollikon
Parameter Value Parametric value Share of the parametric value Reference
Calcium 68.3 mg/l Mean · Gemeinde Egg - Vollikon
Magnesium 13.5 mg/l Mean · Gemeinde Egg - Vollikon
Potassium 1.1 mg/l Mean · Gemeinde Egg - Vollikon
Spectral absorption coefficient 254 nm (SAC 254) 0.8 1/m Mean · Gemeinde Egg - Vollikon
Total hardness 22.6 °fH Mean · Gemeinde Egg - Vollikon

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: 8133

Frequently asked questions about drinking water in Esslingen

How hard is the water in Esslingen?
Wasserversorgung Egg publishes a total hardness of 22.6 °fH for the supply zone Gemeinde Egg - Egg — that corresponds to 12.7 °dH. The hardness range is a classification under the German Detergents and Cleaning Products Act (soft below 8,4 °dH, medium 8,4 to 14 °dH, hard above that) and not a quality verdict — it indicates how much calcium and magnesium is dissolved in the water. Basis: 2026, retrieved on 07/08/2026.
How much nitrate is in the drinking water in Esslingen?
Wasserversorgung Egg publishes a nitrate value of 3.3 mg/l for the supply zone Gemeinde Egg - Egg. The statutory parametric value is 40 mg/l; the measured value represents 8 % of the parametric value. Basis: 2026, retrieved on 07/08/2026.
Who supplies the drinking water in Esslingen?
Wasserversorgung Egg. The values shown here come from the supply zone Gemeinde Egg - Egg 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.