Han Heijnen - President

Han Heijnen is a sanitary engineer with 35 years of experience of living, and working on WASH and rural development, in Asia and Africa. Better serving the last unserved can happen through rainwater harvesting. He is keenly interested in storing rainwater for households and in the landscape.


Anne-Marie Khetib - Treasurer

Administrative and Financial Director of the European Scout Bureau (WSB) for 9 years, she has the same responsibilities within our organization and ensures that procedures, documentation and finance meet the standards (Swiss GAAP FER 21) and demands of donors to ensure good governance and financial management of IRHA. She will take the position as Treasurer starting 2023.


Clara Ariza - Secretary


Salvano Briceno - Member


Margarita Pacheco - Founding member


Bob Boulware - Member


Giulio Castelli - Member


Your support is key


Name: IRHA
Account: 17-198970-3
IBAN: CH15 0900 0000 1719 8970 3

Recognised as a public utility, your donations to the IRHA are tax deductible.



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International Environment House 2
Chemin de Balexert, 9
CH-1219 Châtelaine

Tel. : +41 22 797 41 57
E-mail :