Preparing rock compartments  for blasting on a 100 m high coastal cliff (La Réunion, 2006). © BRGM - Jean-Louis Nedellec


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Activities: Water

AGORA: Optimization of the catchment area of the "100,000 m³/day line" in Bordeaux

The objective of this study, carried out on behalf of Bordeaux Métropole, was to identify the best trade-off between exploitation and impact of the water resource located south of Bordeaux by combining a detailed analysis of field data with an optimisation approach using modelling (Marthe/Capucine).

Guadeloupe: a guide to recycling and use of inert waste in the construction industry

In consultation with stakeholders in the construction and recycling sectors, BRGM has compiled the available information on inert waste that can be recycled by the construction sector in Guadeloupe, in a document that aims to encourage a more virtuous approach and promote the circular economy.

Hub'Eau: all water-related data in near-real time

As a permanent feature of the EauFrance websites, Hub'Eau provides application programming interfaces (otherwise known as API REST) to facilitate access to data from the Water Information System, in formats that are easy to use and suitable for reuse (CSV, JSON, GeoJSON).

Improving geological and hydrogeological knowledge of the Orne département (AGHO programme)

As part of a specific programme to improve understanding of the functioning of groundwater resources, for the whole of the Orne département, a synoptic review of current knowledge was made based on exploration of the sedimentary and basement rock sectors by the departmental water agency. The...

Isotopic tools: tracing the sources of contaminants defined in the Water Framework Directive

Isotopes of metallic contaminants (lead, copper, zinc, nickel) and nutrients (nitrates, phosphates) are extremely useful for identifying their sources and the processes controlling their fate in water resources.

Martinique: characterization of the hazardous nature of the sediments of the Salt River and ways of using them

Martinique’s DEAL (environment directorate) manages the maintenance of rivers and is responsible for dredging and onshore sediment management where necessary. However, the presence of copper and the contamination of some soils by chlordecone raises the question of the dangerousness of sediments in...

Modelling the impacts of construction waste reuse on groundwater

The construction and industrial sectors generate approximately 250 million tonnes of mineral waste annually. Given their geotechnical and environmental characteristics, some of these mineral wastes (concrete, asphalt, etc.) can replace natural materials in road and development works, after...

PHOEBUS: Depth of hydrogeological bodies and assessment of constraints on infiltration of urban rainwater in the territory of Rennes Métropole

This study mapped areas that are favourable or unfavourable to the infiltration of rainwater into the subsurface in the territory of Rennes Métropole, based on a multi-criteria analysis. The results of this work were incorporated into the rainwater regulations of the metropolitan area's inter-...


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