42 Scientific and technological services, namely, research and design in the field of water management, geotechnics, soil mechanics, foundation engineering, engineering geology, geoecology, geohydrology, flood forecasting, flood prevention, hydrodynamics, hydrology, sediment transport, morphology, water quality research, water ecology and environmental geotechnics; carrying out technical research and technical studies and experiments on water surfaces; preparation of technical reports by engineers and laboratory technicians mechanical engineering services; hydraulic engineering planning; technical analyses in the framework of water management; technical design services for others provided by engineers for offshore installations, coasts, harbors, estuaries, rivers and canals; studies and reports on ecological impact; computer software design and development; technical study, development and advice regarding hydrology, morphology, fluid dynamics, water quality and ecology; study and advice regarding geotechnics, namely, soil mechanics, foundation engineering, engineering geology, geoecology, geohydrology, and environmental geotechnics; scientific research for third parties