3 Questions

Lotte Rorije-Kuijer

Lotte Rorije-Kuijer is Project Manager Water Supply at Witteveen+Bos. With 11 years of experience at this engineering consultancy, she has been involved amongst others in several water supply projects in Africa. Over the past years Simavi and Witteveen+Bos have collaborated and combined their expertise in different WASH programmes. We asked Lotte about this partnership.


When did the partnership between Witteveen+Bos and Simavi begin?

“We have been working together for more than 10 years. Our first project originated from the work of Evelyn Keetelaar at the Simavi project in Iruan Jaya, Indonesia. The partnership began when we saw that we were both active in the areas of water supply, sanitation and other parallel projects. This inspired a mutual appreciation for our roles in the sector that was reinforced by a personal connection between like-minded professionals at Witteveen+Bos and Simavi.”


How do you strengthen and support each other?

“Even though we are two very different organisaties- a NGO and an engineering company – we both strive to improve the living conditions of people in a project area. Simavi is strong in the institutional aspects of WASH, while Witteveen+Bos is stronger in the more technical and physical aspects. Together we have been able to carry out and fulfil projects that would normally not be part of our individual portfolio, like the MKAJI project in Tanzania for example.”


Which of our collaborations are you most proud of?

“Two big success stories – the Ghana Netherlands Wash Programme (GWNP) in Ghana and the Maji Kwa Afya ya Jamii Programme (MKAJI) in Tanzania. In the GWNP programme Simavi and Witteveen+Bos formed a consortium with Berenschot to integrate the city’s water and sanitation in selected regions of Accra and Cape Coast in Ghana. We worked on the improvement of sanitary conditions, hygiene and the use of safe drinking water in the city areas, thereby also contributing to the improvement of health and the social economic situation of the population in the project area.

The aim of the MKJAI programme is to upgrade the water and sanitation facilities in primary health clinics in Dodoma. 100 small health clinics are benefitting from improved water and sanitation facilities – it’s a shining example of how successful our partnership has been.”



Please find more information about Witteveen+Bos on their website.

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