Our news

March 2023 - Hydrogeological study of the Jabal Sayid mine site in Saudi Arabia

Bottombillion finalized for SOFRECO the hydrogeological study of this mining prospect located in the middle of the desert. Several different techniques were combined (slug tests, logging, pumping tests, piezometric map, land tide monitoring...) in order to identify and characterize the groundwater resources (in quantity and quality).

February 2023 - Technical assistance to the municipality of Yatta (Palestine) for the modernization of its water service

Yatta is a secondary city in the West Bank (90,000 inhabitants), which escapes the Israeli occupation. Bottombillion was recruited by Hydroconseil to provide institutional and organizational expertise to the municipality, in support of the transformation of the municipal service into an autonomous water syndicate, which will encompass Yatta and neighboring municipalities. This technical assistance is financed by the Dutch Cooperation, through UNICEF.

January 2023 - Impact assessment of a new mining project on groundwater in Saudi Arabia

Bottombillion was recruited by SOFRECO to conduct hydrogeological investigations (watertable mapping, wireline logging, slug tests, pumping tests) for the Ghurrayyah mining project. The aim is to evaluate the water resources, the dewatering needs for the exploitation of a future mine and the potential risks for the environment

December 2022 - Groundwater for sustainable livehoods and equitable growth

The International Association of Hydrogeologists (IAH) has just published a synthesis book on the decisive contribution of groundwater to access to water for the world's poorest populations (https://www.taylorfrancis.com/books/edit/10.1201/9781003024101). In this book, Bernard Collignon, Cédric Estienne and Ibrahim Nassour have written a chapter on the water supply of localities in the Lake Chad region thanks to shallow wells.

November 2022 - Definition study of the national development program for regional water companies (NSPIP)

Bottombillion was recruited by PWA (the Palestinian Ministry of Water) to define the implementation modalities of a national program to support municipalities in setting up regional water companies.

November 2022 - Teaching in the Master Edev (University of Montpellier 3)

Within the framework of the ADEV Master's program, Bernard Collignon has taught the "Cities and Metropolitization" course. These courses focus on the demand and supply of networked public services in slums. 

October 2022 - Desert'action 2022 (Montpellier)

Within the framework of Desert'action 2022, Bernard Collignon led, on behalf of the pS-Eau, a workshop on integrated water resources management (IWRM), based on the examples of the Gaza Strip (Palestine) and the Tlemcen Mountains (Algeria).

October 2022 - Controlling the impact of the VALTRAM construction site on groundwater

Bernard Collignon has carried out an evaluation of the potential impact of the future Aubagne / La Bouilladisse tramway line on drinking water catchments on behalf of the Aix Marseille Provence Metropolis and has proposed risk reduction measures.

September 2022 - Impact assessment of a mining project on groundwater in Saudi Arabia

Bottombillion was recruited by SOFRECO to provide quality assurance for the hydrogeological studies for the Jabal Sayid mining project. These studies aim at evaluating the available water resources, the dewatering needs for the exploitation of a future mine, the potential risks for the environment and the protection measures to be implemented.

August 2022 - Stakeholder consultation in Gaza and Ramallah, Palestine

Bernard Collignon organized and facilitated two national workshops in Palestine to involve all stakeholders (government, local authorities, NGOs) in the development of the Palestinian National Water and Sanitation Strategy to 2042