Hydrological Basis State of Waters Section

The Hydrological Basis State of Waters Section is the federal service responsible for planning the national monitoring of surface water quality as well as for data preparation and scientific analysis.

This section

  • coordinates activities involving the analysis of surface water quality. It plans and runs the associated national measurement networks and is responsible for managing data quality;
  • technically examines, adjusts, validates and processes the data collected;
  • analyses and interprets data series to provide a reliable basis for water protection;
  • is responsible for the scientific evaluation, analysis and publication of hydrological data collected by the federal government on surface water quality;
  • plans and conducts hydrological studies and research projects in its area of responsibility.



Florian Storck
Position: Head of section
Tel.: +41 58 481 55 92
E-mail: florian.storck@bafu.admin.ch

Marie-Ève Randlett
Position: deputy head of section
Tasks: NADUF, Database quality of waters
Tel.: +41 58 461 19 78
E-mail: marie-eve.randlett@bafu.admin.ch

Joëlle Blanc Kümin
Tasks: NADUF / NAWA, database quality of waters, solid material
Tel.: +41 58 469 50 75
E-mail: joelle.blanc@bafu.admin.ch

Thilo Herold
Tasks: Water temperature
Tel.: +41 58 463 94 50
E-mail: thilo.herold@bafu.admin.ch

Ursula Leuenberger
Tasks: NADUF / NAWA, database quality of waters, solid material
Tel.: +41 58 464 76 72
E-mail: ursula.leuenberger@bafu.admin.ch

Päivi Rinta
NAWA, bathing water quality (BAQUA)
Tel.: +41 58 469 77 57
E-mail: paeivi.rinta@bafu.admin.ch

Last modification 18.02.2021

Top of page


Federal Office for the Environment FOEN
Hydrology Division

Postal address:
CH-3003 Bern

Location of our offices:
Papiermühlestrasse 172, 3063 Ittigen

Tel.: +41 58 463 85 68
Fax: +41 58 464 76 81


Print contact