Bruno Lemière explored most of the possible paths for a geochemist in the BRGM group (French Geological Survey). He began as a mapping geologist and igneous geochemist, then joined mineral exploration as Chief geochemist for BRGM Saudi Arabia from 1990 to 1993. He joined then the ANTEA engineering company to coordinate the geochemistry activities in the deep storage of high activity nuclear waste sector. Back in BRGM analysis laboratories, he worked to open them to new markets for the geochemistry methods in the industry, and for laboratory engineering. Since 1998, he is an applied geochemistry expert and international projects manager with BRGM’s Water, Environment, Process and Analysis Division, with activities for private or public clients in the European Union, India, Egypt, Romania, Greece, Turkey, Mauritania, Guinea and Tanzania. His main focus is on sampling, field analysis and instrumentation, for mining, environmental and agricultural issues. He leads or contributes to European applied research projects, especially in the water and sediment sectors. He is also operating in the mining and analytical sectors as a free-lance consulting geochemist. He is the Vice-President of the SedNet network, a Fellow Member of the Association of Applied Geochemists, of the International Mine Water Association. Bruno holds a MS in industrial and analytical chemistry (1978) from the Lyon University Chemistry School (CPE) and a PhD (1982) in geology and geochemistry.