How hard is the water in Stallikon, Uetliberg?

Wasserversorgung Stallikon publishes a total hardness of 33.5 °fH for the supply zone Gamlikon - Tägerst — that corresponds to 18.8 °dH. The hardness range is a classification under the German Detergents and Cleaning Products Act (soft below 8,4 °dH, medium 8,4 to 14 °dH, hard above that) and not a quality verdict — it indicates how much calcium and magnesium is dissolved in the water. Basis: 2025, retrieved on 07/08/2026.

How much nitrate is in the drinking water in Stallikon, Uetliberg?

Wasserversorgung Stallikon publishes a nitrate value of 12.5 mg/l for the supply zone Gamlikon - Tägerst. The statutory parametric value is 40 mg/l; the measured value represents 31 % of the parametric value. Basis: 2025, retrieved on 07/08/2026.

Who supplies the drinking water in Stallikon, Uetliberg?

Wasserversorgung Stallikon. The values shown here come from the supply zone Gamlikon - Tägerst 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.

Drinking water in Stallikon, Uetliberg

7 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.

Gamlikon - Tägerst

Wasserversorgung Stallikon

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

Water hardness

18.8 °dH

Hardness range hard

Key values Gamlikon - Tägerst
Parameter	Value	Parametric value	Share of the parametric value	Reference
Nitrate	12.5 mg/l	40 mg/l	31 %	Mean · Gamlikon - Tägerst
Escherichia coli (E. coli)	0 KBE/100ml	0/100 ml	—	Maximum · Median 0 · Gamlikon - Tägerst
Sodium	5.6 mg/l	200 mg/l	3 %	Mean · Gamlikon - Tägerst

Show all recorded parameters (8 — most recent value per parameter)

Microbiology (3)

Microbiology – Gamlikon - Tägerst
Parameter	Value	Parametric value	Share of the parametric value	Reference
Aerobic mesophilic bacteria	6 KBE/ml	300 1/ml	—	Mean · Gamlikon - Tägerst
Escherichia coli (E. coli)	0 KBE/100ml	0/100 ml	—	Maximum · Median 0 · Gamlikon - Tägerst
Intestinal enterococci	0 KBE/100ml	0/100 ml	—	Maximum · Median 0 · Gamlikon - Tägerst

Chemical parameters (1)

Chemical parameters – Gamlikon - Tägerst
Parameter	Value	Parametric value	Share of the parametric value	Reference
Nitrate	12.5 mg/l	40 mg/l	31 %	Mean · Gamlikon - Tägerst

Indicator parameters (1)

Indicator parameters – Gamlikon - Tägerst
Parameter	Value	Parametric value	Share of the parametric value	Reference
Sodium	5.6 mg/l	200 mg/l	3 %	Mean · Gamlikon - Tägerst

Further parameters (3)

Further parameters – Gamlikon - Tägerst
Parameter	Value	Parametric value	Share of the parametric value	Reference
Calcium	102.5 mg/l	—	—	Mean · Gamlikon - Tägerst
Magnesium	19.6 mg/l	—	—	Mean · Gamlikon - Tägerst
Total hardness	33.5 °fH	—	—	Mean · Gamlikon - Tägerst

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://trinkwasser.ch/de/versorger/765/wasserversorgung-stallikon/3093/gamlikon-tagerst · 2025 · 2025 · retrieved on 07/08/2026

Postcodes in this zone: 8143

Show 6 more supply zones

P12 TB Gössendorf (Brunnen I und II)

Marktgemeinde Laßnitzhöhe (WVA Marktgemeinde Laßnitzhöhe)

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

Water hardness

24 °dH

Hardness range hard

Key values P12 TB Gössendorf (Brunnen I und II)
Parameter	Value	Parametric value	Share of the parametric value	Reference
Nitrate	30,9 mg/l	50 mg/l	62 %	Single value
Escherichia coli (E. coli)	0 Anzahl/100ml	0/100 ml	—	Single value
Sulphate	36,8 mg/l	250 mg/l	15 %	Single value
Sodium	20,6 mg/l	200 mg/l	10 %	Single value

Show all recorded parameters (27 — most recent value per parameter)

Microbiology (2)

Microbiology – P12 TB Gössendorf (Brunnen I und II)
Parameter	Value	Parametric value	Share of the parametric value	Reference
Escherichia coli (E. coli)	0 Anzahl/100ml	0/100 ml	—	Single value
Intestinal enterococci	0 Anzahl/100ml	0/100 ml	—	Single value

Chemical parameters (3)

Chemical parameters – P12 TB Gössendorf (Brunnen I und II)
Parameter	Value	Parametric value	Share of the parametric value	Reference
Nitrate	30,9 mg/l	50 mg/l	62 %	Single value
Nitrate/50 + Nitrite/3	0,62	—	—	Single value
Nitrite	< 0,005 mg/l below limit of quantification	0.1 mg/l	< 5 % *	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 – P12 TB Gössendorf (Brunnen I und II)
Parameter	Value	Parametric value	Share of the parametric value	Reference
Ammonium	< 0,05 mg/l below limit of quantification	0.5 mg/l	< 10 % *	Single value
Chloride	49,0 mg/l	200 mg/l	25 %	Single value
Coliform bacteria	0 Anzahl/100ml	0/100 ml	—	Single value
Colony count 22 °C	2 Anzahl/ml	100 1/ml	—	Single value
Colony count 36 °C	0 Anzahl/ml	20 1/ml	—	Single value
Conductivity (25 °C)	829 µS/cm	2,500 µS/cm	—	Single value
Iron	< 0,01 mg/l below limit of quantification	0.2 mg/l	< 5 % *	Single value
Manganese	< 0,001 mg/l below limit of quantification	50 µg/l	< 2 % *	Single value
Odour	geruchlos -	—	—	Single value
pH	7,4	6,5–9,5	—	Single value
Sodium	20,6 mg/l	200 mg/l	10 %	Single value
Sulphate	36,8 mg/l	250 mg/l	15 %	Single value
Taste	ohne Geschmack -	—	—	Single value
Temperature	13,7 °C	—	—	Single value
Total organic carbon (TOC)	< 0,4 mg/l below limit of quantification	—	—	Single value
Turbidity	klar -	—	—	Single value

Further parameters (6)

Further parameters – P12 TB Gössendorf (Brunnen I und II)
Parameter	Value	Parametric value	Share of the parametric value	Reference
Acid capacity to pH 4.3	6,194 mmol/l	—	—	Single value
Calcium	137 mg/l	400 mg/l	34 %	Single value
Carbonate hardness	17,3 °dH	—	—	Single value
Magnesium	20,8 mg/l	150 mg/l	14 %	Single value
Potassium	2,3 mg/l	50 mg/l	5 %	Single value
Total hardness	4,274 mmol/l	—	—	Single value

Source: https://wasserverband.at/wp-content/uploads/2025/12/Pruefbericht-Brunnen-Goessendorf.pdf · Prüfzeitraum von 20.11.2025 bis 05.12.2025 · retrieved on 11/08/2026

Postcodes in this zone: 8143

P6 TB Bahnhof

Marktgemeinde Laßnitzhöhe (WVA Marktgemeinde Laßnitzhöhe)

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 25/08/2025. 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.

Key values P6 TB Bahnhof
Parameter	Value	Parametric value	Share of the parametric value	Reference
Escherichia coli (E. coli)	0 KBE/100ml	0/100 ml	—	Single value · P6 TB Bahnhof

Show all recorded parameters (12 — most recent value per parameter)

Microbiology (3)

Microbiology – P6 TB Bahnhof
Parameter	Value	Parametric value	Share of the parametric value	Reference
Escherichia coli (E. coli)	0 KBE/100ml	0/100 ml	—	Single value · P6 TB Bahnhof
Intestinal enterococci	0 KBE/100ml	0/100 ml	—	Single value · P6 TB Bahnhof
Pseudomonas aeruginosa	0 KBE/100ml	0/100 ml	—	Single value · P6 TB Bahnhof

Indicator parameters (9)

Indicator parameters – P6 TB Bahnhof
Parameter	Value	Parametric value	Share of the parametric value	Reference
Coliform bacteria	0 KBE/100ml	0/100 ml	—	Single value · P6 TB Bahnhof
Colony count 22 °C	0 KBE/ml	100 1/ml	—	Single value · P6 TB Bahnhof
Colony count 36 °C	0 KBE/ml	20 1/ml	—	Single value · P6 TB Bahnhof
Colour	farblos	—	—	Single value · P6 TB Bahnhof
Conductivity (25 °C)	317 µS/cm	2,500 µS/cm	—	Single value · P6 TB Bahnhof
Odour	ohne	—	—	Single value · P6 TB Bahnhof
pH	7,64 bei 20°C	6,5–9,5	—	Single value · P6 TB Bahnhof
Taste	ohne	—	—	Single value · P6 TB Bahnhof
Temperature	13,5 °C	—	—	Single value · P6 TB Bahnhof

Source: https://wasserverband.at/wp-content/uploads/2025/12/Pruefbericht-Marktgemeinde-Lassnitzhoehe.pdf · 25.08.2025 · Probeneingang 21.08.2025, Prüfungszeitraum 21.08.2025 - 25.08.2025 · retrieved on 11/08/2026

Postcodes in this zone: 8143

Stallikon Bergzone

Wasserversorgung Stallikon

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

Water hardness

16 °dH

Hardness range hard

Key values Stallikon Bergzone
Parameter	Value	Parametric value	Share of the parametric value	Reference
Nitrate	10 mg/l	40 mg/l	25 %	Mean · Stallikon Bergzone
Escherichia coli (E. coli)	0 KBE/100ml	0/100 ml	—	Maximum · Median 0 · Stallikon Bergzone
Sodium	5.4 mg/l	200 mg/l	3 %	Mean · Stallikon Bergzone

Show all recorded parameters (8 — most recent value per parameter)

Microbiology (3)

Microbiology – Stallikon Bergzone
Parameter	Value	Parametric value	Share of the parametric value	Reference
Aerobic mesophilic bacteria	3.5 KBE/ml	300 1/ml	—	Mean · Stallikon Bergzone
Escherichia coli (E. coli)	0 KBE/100ml	0/100 ml	—	Maximum · Median 0 · Stallikon Bergzone
Intestinal enterococci	0 KBE/100ml	0/100 ml	—	Maximum · Median 0 · Stallikon Bergzone

Chemical parameters (1)

Chemical parameters – Stallikon Bergzone
Parameter	Value	Parametric value	Share of the parametric value	Reference
Nitrate	10 mg/l	40 mg/l	25 %	Mean · Stallikon Bergzone

Indicator parameters (1)

Indicator parameters – Stallikon Bergzone
Parameter	Value	Parametric value	Share of the parametric value	Reference
Sodium	5.4 mg/l	200 mg/l	3 %	Mean · Stallikon Bergzone

Further parameters (3)

Further parameters – Stallikon Bergzone
Parameter	Value	Parametric value	Share of the parametric value	Reference
Calcium	85.7 mg/l	—	—	Mean · Stallikon Bergzone
Magnesium	17.5 mg/l	—	—	Mean · Stallikon Bergzone
Total hardness	28.6 °fH	—	—	Mean · Stallikon Bergzone

Source: https://trinkwasser.ch/de/versorger/765/wasserversorgung-stallikon/3092/stallikon-bergzone · 2025 · 2025 · retrieved on 07/08/2026

Postcodes in this zone: 8143

Stallikon - Sellenbüren

Wasserversorgung Stallikon

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

Water hardness

9.7 °dH

Hardness range medium

Key values Stallikon - Sellenbüren
Parameter	Value	Parametric value	Share of the parametric value	Reference
Nitrate	5.1 mg/l	40 mg/l	13 %	Mean · Stallikon - Sellenbüren
Escherichia coli (E. coli)	0 KBE/100ml	0/100 ml	—	Maximum · Median 0 · Stallikon - Sellenbüren
Sodium	7 mg/l	200 mg/l	3 %	Mean · Stallikon - Sellenbüren

Show all recorded parameters (8 — most recent value per parameter)

Microbiology (3)

Microbiology – Stallikon - Sellenbüren
Parameter	Value	Parametric value	Share of the parametric value	Reference
Aerobic mesophilic bacteria	1.5 KBE/ml	300 1/ml	—	Mean · Stallikon - Sellenbüren
Escherichia coli (E. coli)	0 KBE/100ml	0/100 ml	—	Maximum · Median 0 · Stallikon - Sellenbüren
Intestinal enterococci	0 KBE/100ml	0/100 ml	—	Maximum · Median 0 · Stallikon - Sellenbüren

Chemical parameters (1)

Chemical parameters – Stallikon - Sellenbüren
Parameter	Value	Parametric value	Share of the parametric value	Reference
Nitrate	5.1 mg/l	40 mg/l	13 %	Mean · Stallikon - Sellenbüren

Indicator parameters (1)

Indicator parameters – Stallikon - Sellenbüren
Parameter	Value	Parametric value	Share of the parametric value	Reference
Sodium	7 mg/l	200 mg/l	3 %	Mean · Stallikon - Sellenbüren

Further parameters (3)

Further parameters – Stallikon - Sellenbüren
Parameter	Value	Parametric value	Share of the parametric value	Reference
Calcium	55 mg/l	—	—	Mean · Stallikon - Sellenbüren
Magnesium	9.1 mg/l	—	—	Mean · Stallikon - Sellenbüren
Total hardness	17.4 °fH	—	—	Mean · Stallikon - Sellenbüren

Source: https://trinkwasser.ch/de/versorger/765/wasserversorgung-stallikon/3094/stallikon-sellenburen · 2025 · 2025 · retrieved on 07/08/2026

Postcodes in this zone: 8143

Thondorf Brunnen 1, nach UV

Marktgemeinde Laßnitzhöhe (WVA Marktgemeinde Laßnitzhöhe)

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

Water hardness

10.2 °dH

Hardness range medium

Key values Thondorf Brunnen 1, nach UV
Parameter	Value	Parametric value	Share of the parametric value	Reference
Nitrate	2,0 mg/l	50 mg/l	4 %	Single value
Lead	< 3 µg/l below limit of quantification	10 µg/l	< 30 % *	Single value
Escherichia coli (E. coli)	0 Anzahl/250ml	0/100 ml	—	Single value
Sulphate	24,8 mg/l	250 mg/l	10 %	Single value
Sodium	11,0 mg/l	200 mg/l	5 %	Single value

Show all recorded parameters (114 — most recent value per parameter)

Microbiology (3)

Microbiology – Thondorf Brunnen 1, nach UV
Parameter	Value	Parametric value	Share of the parametric value	Reference
Escherichia coli (E. coli)	0 Anzahl/250ml	0/100 ml	—	Single value
Intestinal enterococci	0 Anzahl/250ml	0/100 ml	—	Single value
Pseudomonas aeruginosa	0 Anzahl/250ml	0/100 ml	—	Single value

Chemical parameters (80)

Chemical parameters – Thondorf Brunnen 1, nach UV
Parameter	Value	Parametric value	Share of the parametric value	Reference
1,2-dichloroethane	< 0,45 µg/l below limit of quantification	3 µg/l	< 15 % *	Single value
2,4-D	< 0,05 µg/l below limit of quantification	—	—	Single value
2,6-Dichlorobenzamide (BAM)	< 0,05 µg/l below limit of quantification	—	—	Single value
Alachlor	< 0,03 µg/l below limit of quantification	—	—	Single value
Aldrin	< 0,007 µg/l below limit of quantification	—	—	Single value
Antimony	< 0,5 µg/l below limit of quantification	5 µg/l	< 10 % *	Single value
Arsenic	< 5 µg/l below limit of quantification	10 µg/l	< 50 % *	Single value
Atrazine	< 0,05 µg/l below limit of quantification	—	—	Single value
Azoxystrobin	< 0,025 µg/l below limit of quantification	—	—	Single value
Bentazone	< 0,03 µg/l below limit of quantification	—	—	Single value
Benzene	< 0,5 µg/l below limit of quantification	1 µg/l	< 50 % *	Single value
Benzo(a)pyrene	< 0,005 µg/l below limit of quantification	10 ng/l	< 50 % *	Single value
Benzo(b)fluoranthene	< 0,005 µg/l below limit of quantification	—	—	Single value
Benzo(ghi)perylene	< 0,005 µg/l below limit of quantification	—	—	Single value
Benzo(k)fluoranthene	< 0,005 µg/l below limit of quantification	—	—	Single value
Boron	< 0,02 mg/l below limit of quantification	1 mg/l	< 2 % *	Single value
Bromacil	< 0,03 µg/l below limit of quantification	—	—	Single value
Bromodichloromethane	< 0,1 µg/l below limit of quantification	—	—	Single value
Cadmium	< 1 µg/l below limit of quantification	5 µg/l	< 20 % *	Single value
Chloridazon	< 0,025 µg/l below limit of quantification	—	—	Single value
Chlorothalonil	< 0,025 µg/l below limit of quantification	—	—	Single value
Chromium	< 2 µg/l below limit of quantification	50 µg/l	< 4 % *	Single value
Clopyralid	< 0,05 µg/l below limit of quantification	—	—	Single value
Clothianidin	< 0,03 µg/l below limit of quantification	—	—	Single value
Copper	< 0,005 mg/l below limit of quantification	2 mg/l	< 0.3 % *	Single value
Cyanide	< 10 µg/l below limit of quantification	50 µg/l	< 20 % *	Single value
Dibromochloromethane	< 0,1 µg/l below limit of quantification	—	—	Single value
Dicamba	< 0,05 µg/l below limit of quantification	—	—	Single value
Dichlorprop	< 0,03 µg/l below limit of quantification	—	—	Single value
Dieldrin	< 0,007 µg/l below limit of quantification	—	—	Single value
Dimethachlor	< 0,025 µg/l below limit of quantification	—	—	Single value
Dimethenamid	< 0,025 µg/l below limit of quantification	—	—	Single value
Diuron	< 0,03 µg/l below limit of quantification	—	—	Single value
Ethofumesate	< 0,05 µg/l below limit of quantification	—	—	Single value
Flufenacet	< 0,03 µg/l below limit of quantification	—	—	Single value
Fluoride	0,070 mg/l	1.5 mg/l	5 %	Single value
Glyphosate	< 0,03 µg/l below limit of quantification	—	—	Single value
Heptachlor	< 0,007 µg/l below limit of quantification	—	—	Single value
Heptachlor epoxide	< 0,02 µg/l below limit of quantification	—	—	Single value
Hexazinone	< 0,05 µg/l below limit of quantification	—	—	Single value
Imidacloprid	< 0,05 µg/l below limit of quantification	—	—	Single value
Indeno(1,2,3-cd)pyrene	< 0,005 µg/l below limit of quantification	—	—	Single value
Iodosulfuron-methyl	< 0,03 µg/l below limit of quantification	—	—	Single value
Isoproturon	< 0,025 µg/l below limit of quantification	—	—	Single value
Lead	< 3 µg/l below limit of quantification	10 µg/l	< 30 % *	Single value
MCPA	< 0,05 µg/l below limit of quantification	—	—	Single value
Mecoprop	< 0,03 µg/l below limit of quantification	—	—	Single value
Mercury	< 0,1 µg/l below limit of quantification	1 µg/l	< 10 % *	Single value
Mesosulfuron-methyl	< 0,05 µg/l below limit of quantification	—	—	Single value
Metalaxyl	< 0,03 µg/l below limit of quantification	—	—	Single value
Metamitron	< 0,05 µg/l below limit of quantification	—	—	Single value
Metazachlor	< 0,025 µg/l below limit of quantification	—	—	Single value
Metolachlor	< 0,03 µg/l below limit of quantification	—	—	Single value
Metribuzin	< 0,05 µg/l below limit of quantification	—	—	Single value
Metsulfuron-methyl	< 0,05 µg/l below limit of quantification	—	—	Single value
Nickel	< 5 µg/l below limit of quantification	20 µg/l	< 25 % *	Single value
Nicosulfuron	< 0,03 µg/l below limit of quantification	—	—	Single value
Nitrate	2,0 mg/l	50 mg/l	4 %	Single value
Nitrate/50 + Nitrite/3	0,04 mg/l	—	—	Single value
Nitrite	< 0,005 mg/l below limit of quantification	0.1 mg/l	< 5 % *	Single value
Pethoxamid	< 0,05 µg/l below limit of quantification	—	—	Single value
Propazine	< 0,05 µg/l below limit of quantification	—	—	Single value
Propiconazole	< 0,05 µg/l below limit of quantification	—	—	Single value
Selenium	< 10 µg/l below limit of quantification	20 µg/l	< 50 % *	Single value
Simazine	< 0,03 µg/l below limit of quantification	—	—	Single value
Terbuthylazine	< 0,05 µg/l below limit of quantification	—	—	Single value
Tetrachloroethene	< 0,1 µg/l below limit of quantification	—	—	Single value
Tetrachloroethene and Trichloroethene (sum)	< 0,1 µg/l below limit of quantification	10 µg/l	< 1 % *	Single value
Thiacloprid	< 0,03 µg/l below limit of quantification	—	—	Single value
Thiamethoxam	< 0,05 µg/l below limit of quantification	—	—	Single value
Thifensulfuron-methyl	< 0,05 µg/l below limit of quantification	—	—	Single value
Tolylfluanid	< 0,05 µg/l below limit of quantification	—	—	Single value
Tribenuron-methyl	< 0,05 µg/l below limit of quantification	—	—	Single value
Tribromomethane (bromoform)	< 0,15 µg/l below limit of quantification	—	—	Single value
Trichloroethene	< 0,1 µg/l below limit of quantification	—	—	Single value
Trichloromethane (chloroform)	< 0,21 µg/l below limit of quantification	—	—	Single value
Triclopyr	< 0,05 µg/l below limit of quantification	—	—	Single value
Triflusulfuron-methyl	< 0,05 µg/l below limit of quantification	—	—	Single value
Tritosulfuron	< 0,05 µg/l below limit of quantification	—	—	Single value
Uranium	1,0 µg/l	15 µg/l	7 %	Single value

Metabolites (5)

Metabolites – Thondorf Brunnen 1, nach UV
Parameter	Value	Parametric value	Share of the parametric value	Reference
2-Hydroxyatrazine	< 0,05 µg/l below limit of quantification	—	—	Single value
Desphenyl-chloridazon	< 0,05 µg/l below limit of quantification	—	—	Single value
Dimethachlor sulfonic acid CGA 354742	< 0,025 µg/l below limit of quantification	—	—	Single value
Dimethylsulfamide (DMS)	< 0,03 µg/l below limit of quantification	—	—	Single value
Flufenacet sulfonic acid M2	< 0,01 µg/l below limit of quantification	—	—	Single value

Indicator parameters (18)

Indicator parameters – Thondorf Brunnen 1, nach UV
Parameter	Value	Parametric value	Share of the parametric value	Reference
Aluminium	< 0,01 mg/l below limit of quantification	0.2 mg/l	< 5 % *	Single value
Ammonium	< 0,05 mg/l below limit of quantification	0.5 mg/l	< 10 % *	Single value
Chloride	12,1 mg/l	200 mg/l	6 %	Single value
Clostridium perfringens (including spores)	0 Anzahl/250ml	0/100 ml	—	Single value
Coliform bacteria	0 Anzahl/250ml	0/100 ml	—	Single value
Colony count 22 °C	3 Anzahl/ml	100 1/ml	—	Single value
Colony count 36 °C	0 Anzahl/ml	20 1/ml	—	Single value
Conductivity (25 °C)	428 µS/cm	2,500 µS/cm	—	Single value
Iron	< 0,01 mg/l below limit of quantification	0.2 mg/l	< 5 % *	Single value
Manganese	< 0,001 mg/l below limit of quantification	50 µg/l	< 2 % *	Single value
Odour	geruchlos -	—	—	Single value
pH	7,7 -	6,5–9,5	—	Single value
Sodium	11,0 mg/l	200 mg/l	5 %	Single value
Sulphate	24,8 mg/l	250 mg/l	10 %	Single value
Taste	ohne Geschmack -	—	—	Single value
Temperature	13,0 °C	—	—	Single value
Total organic carbon (TOC)	0,86 mg/l	—	—	Single value
Turbidity	< 0,1 NTU below limit of quantification	—	—	Single value

Further parameters (8)

Further parameters – Thondorf Brunnen 1, nach UV
Parameter	Value	Parametric value	Share of the parametric value	Reference
Acid capacity to pH 4.3	3,582 mmol/l	—	—	Single value
Calcium	57,9 mg/l	400 mg/l	14 %	Single value
Carbonate hardness	10,0 °dH	—	—	Single value
Magnesium	9,1 mg/l	150 mg/l	6 %	Single value
Oxygen	9,8 mg/l	—	—	Single value
Potassium	3,3 mg/l	50 mg/l	7 %	Single value
Total hardness	10,2 °dH	—	—	Single value
Zinc	< 0,01 mg/l below limit of quantification	—	—	Single value

Source: https://wasserverband.at/wp-content/uploads/2025/12/Pruefbericht-Brunnen-Thondorf.pdf · Prüfzeitraum von 03.09.2025 bis 23.09.2025 · retrieved on 11/08/2026

Postcodes in this zone: 8143

Wolfen & Bol

Wasserversorgung Stallikon

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

Water hardness

20.3 °dH

Hardness range hard

Key values Wolfen & Bol
Parameter	Value	Parametric value	Share of the parametric value	Reference
Nitrate	10.7 mg/l	40 mg/l	27 %	Mean · Wolfen & Bol
Escherichia coli (E. coli)	0 KBE/100ml	0/100 ml	—	Maximum · Median 0 · Wolfen & Bol
Sodium	3.2 mg/l	200 mg/l	2 %	Mean · Wolfen & Bol

Show all recorded parameters (8 — most recent value per parameter)

Microbiology (3)

Microbiology – Wolfen & Bol
Parameter	Value	Parametric value	Share of the parametric value	Reference
Aerobic mesophilic bacteria	3 KBE/ml	300 1/ml	—	Mean · Wolfen & Bol
Escherichia coli (E. coli)	0 KBE/100ml	0/100 ml	—	Maximum · Median 0 · Wolfen & Bol
Intestinal enterococci	0 KBE/100ml	0/100 ml	—	Maximum · Median 0 · Wolfen & Bol

Chemical parameters (1)

Chemical parameters – Wolfen & Bol
Parameter	Value	Parametric value	Share of the parametric value	Reference
Nitrate	10.7 mg/l	40 mg/l	27 %	Mean · Wolfen & Bol

Indicator parameters (1)

Indicator parameters – Wolfen & Bol
Parameter	Value	Parametric value	Share of the parametric value	Reference
Sodium	3.2 mg/l	200 mg/l	2 %	Mean · Wolfen & Bol

Further parameters (3)

Further parameters – Wolfen & Bol
Parameter	Value	Parametric value	Share of the parametric value	Reference
Calcium	89.4 mg/l	—	—	Mean · Wolfen & Bol
Magnesium	33.8 mg/l	—	—	Mean · Wolfen & Bol
Total hardness	36.2 °fH	—	—	Mean · Wolfen & Bol

Source: https://trinkwasser.ch/de/versorger/765/wasserversorgung-stallikon/3091/wolfen-bol · 2025 · 2025 · retrieved on 07/08/2026

Postcodes in this zone: 8143

Frequently asked questions about drinking water in Stallikon, Uetliberg

How hard is the water in Stallikon, Uetliberg?: Wasserversorgung Stallikon publishes a total hardness of 33.5 °fH for the supply zone Gamlikon - Tägerst — that corresponds to 18.8 °dH. The hardness range is a classification under the German Detergents and Cleaning Products Act (soft below 8,4 °dH, medium 8,4 to 14 °dH, hard above that) and not a quality verdict — it indicates how much calcium and magnesium is dissolved in the water. Basis: 2025, retrieved on 07/08/2026.
How much nitrate is in the drinking water in Stallikon, Uetliberg?: Wasserversorgung Stallikon publishes a nitrate value of 12.5 mg/l for the supply zone Gamlikon - Tägerst. The statutory parametric value is 40 mg/l; the measured value represents 31 % of the parametric value. Basis: 2025, retrieved on 07/08/2026.
Who supplies the drinking water in Stallikon, Uetliberg?: Wasserversorgung Stallikon. The values shown here come from the supply zone Gamlikon - Tägerst 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.