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Drinking water in La Côte-aux-Fées

2 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.

These values are more than a year old. The most recent analysis the water supplier has published for this zone dates from 31/12/2023. We have no newer values — which is why we show the latest available ones rather than none at all. They say nothing about how the water has changed since then.

Key values La Côte-aux-Fées
Parameter Value Parametric value Share of the parametric value Reference
Escherichia coli (E. coli) 0 /100ml 0/100 ml Maximum · Median 0
Show all recorded parameters (10 — most recent value per parameter)

Microbiology (3)

Microbiology – La Côte-aux-Fées
Parameter Value Parametric value Share of the parametric value Reference
Aerobic mesophilic bacteria 22 /ml 300 1/ml Mean
Escherichia coli (E. coli) 0 /100ml 0/100 ml Maximum · Median 0
Intestinal enterococci 0 /100ml 0/100 ml Maximum · Median 0

Chemical parameters (1)

Chemical parameters – La Côte-aux-Fées
Parameter Value Parametric value Share of the parametric value Reference
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 (4)

Indicator parameters – La Côte-aux-Fées
Parameter Value Parametric value Share of the parametric value Reference
Ammonium < 0.010 mg/L
below limit of quantification
0.5 mg/l
< 2 % *
Single value
Conductivity (25 °C) 401 µS/cm Mean
pH 7.6 Mean
Turbidity 0.30 FTU Mean

* Value below the limit of quantification: the actual share of the parametric value is not known; it lies somewhere below the stated upper bound. The marker shows where the limit of quantification of the measurement lies relative to the parametric value.

Treatment substances (1)

Treatment substances – La Côte-aux-Fées
Parameter Value Parametric value Share of the parametric value Reference
Free chlorine 0.00 mg/L 0.1 mg/l
0 %
Mean

Further parameters (1)

Further parameters – La Côte-aux-Fées
Parameter Value Parametric value Share of the parametric value Reference
Spectral absorption coefficient 254 nm (SAC 254) 3.83 E/m Mean

Values taken unchanged from the publications linked below — for each parameter the most recent recorded value. „—" in the parametric value column: no currently valid legal parametric value is stored in our database for this parameter; the parameter register with all parametric values is being expanded continuously.

Source: https://www.lacote-aux-fees.ch/fileadmin/SICO/LaCote-aux-Fees/Service_des_eaux/DI_Cote_aux_Fees_2023.pdf · 2023-33 · Bilan des analyses 2023 · retrieved on 12/08/2026

Postcodes in this zone: 2117

Show 1 more supply zone

ch-la-cote-aux-fees gesamt

Services des eaux La Côte-aux-Fées

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

No date is given for these values. The water supplier publishes the analysis without a sampling date and without a report date. When the water was examined is not apparent from the source — we do not add a date and we do not estimate one. What is stated is therefore only when we retrieved the document.

No core values are available for this zone yet.

Show all recorded parameters (40 — most recent value per parameter)

Chemical parameters (13)

Chemical parameters – ch-la-cote-aux-fees gesamt
Parameter Value Parametric value Share of the parametric value Reference
2,4-D non décelé
not detectable
Single value · Source [1]
Bentazone non décelé
not detectable
Single value · Source [1]
Chloridazon non décelé
not detectable
Single value · Source [1]
Clothianidin non décelé
not detectable
Single value · Source [1]
Dichlorprop non décelé
not detectable
Single value · Source [1]
Diuron non décelé
not detectable
Single value · Source [1]
Flufenacet non décelé
not detectable
Single value · Source [1]
Isoproturon non décelé
not detectable
Single value · Source [1]
MCPA non décelé
not detectable
Single value · Source [1]
Metalaxyl non décelé
not detectable
Single value · Source [1]
Nicosulfuron non décelé
not detectable
Single value · Source [1]
Oxadixyl non décelé
not detectable
Single value · Source [1]
Sulcotrione non décelé
not detectable
Single value · Source [1]

PFAS (22)

PFAS – ch-la-cote-aux-fees gesamt
Parameter Value Parametric value Share of the parametric value Reference
Perfluorobutane sulfonic acid (PFBS) non décelé
not detectable
Single value · Source [2]
Perfluorobutanoic acid (PFBA) non décelé
not detectable
Single value · Source [2]
Perfluorodecane sulfonic acid (PFDS) non décelé
not detectable
Single value · Source [2]
Perfluorodecanoic acid (PFDA) non décelé
not detectable
Single value · Source [2]
Perfluorododecane sulfonic acid (PFDoDS) non décelé
not detectable
Single value · Source [2]
Perfluorododecanoic acid (PFDoDA) non décelé
not detectable
Single value · Source [2]
Perfluoroheptane sulfonic acid (PFHpS) non décelé
not detectable
Single value · Source [2]
Perfluoroheptanoic acid (PFHpA) non décelé
not detectable
Single value · Source [2]
Perfluorohexane sulfonic acid (PFHxS) non décelé
not detectable
Unit not stated in the document
0.3 µg/l Single value · Source [2]
Perfluorohexanoic acid (PFHxA) non décelé
not detectable
Single value · Source [2]
Perfluorononane sulfonic acid (PFNS) non décelé
not detectable
Single value · Source [2]
Perfluorononanoic acid (PFNA) non décelé
not detectable
Single value · Source [2]
Perfluorooctanesulfonic acid (PFOS) non décelé
not detectable
Unit not stated in the document
0.3 µg/l Single value · Source [2]
Perfluorooctanoic acid (PFOA) non décelé
not detectable
Unit not stated in the document
0.5 µg/l Single value · Source [2]
Perfluoropentanesulfonic acid (PFPeS) non décelé
not detectable
Single value · Source [2]
Perfluoropentanoic acid (PFPeA) non décelé
not detectable
Single value · Source [2]
Perfluorotridecanesulfonic acid (PFTrDS) non décelé
not detectable
Single value · Source [2]
Perfluorotridecanoic acid (PFTrDA) non décelé
not detectable
Single value · Source [2]
Perfluoroundecanesulfonic acid (PFUnDS) non décelé
not detectable
Single value · Source [2]
Perfluoroundecanoic acid (PFUnDA) non décelé
not detectable
Single value · Source [2]
PFAS Total non décelé
not detectable
Single value · Source [2]
Trifluoroacetic acid (TFA) 530.3 ± 212.1 ng/L Single value · Source [2]

Metabolites (2)

Metabolites – ch-la-cote-aux-fees gesamt
Parameter Value Parametric value Share of the parametric value Reference
Desphenyl-chloridazon non décelé
not detectable
Single value · Source [1]
Dimethachlor sulfonic acid CGA 369873 non décelé
not detectable
Single value · Source [1]

Further parameters (3)

Further parameters – ch-la-cote-aux-fees gesamt
Parameter Value Parametric value Share of the parametric value Reference
Candesartan non décelé
not detectable
Single value · Source [1]
Carbamazepine non décelé
not detectable
Single value · Source [1]
Lamotrigine <0.011 µg/l
below limit of quantification
Single value · Source [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: 2117

Frequently asked questions about drinking water in La Côte-aux-Fées

Who supplies the drinking water in La Côte-aux-Fées?
Services des eaux La Côte-aux-Fées. The values shown here come from the supply zone La Côte-aux-Fées 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.