The purpose of this contract is the collection of information, field work, collection of water samples and preparation of hydrogeological information layers for the preparation of the Map of Hydrogeological Units and aquifers of Catalonia 1:100,000 and analytical of basic physical-chemical and hydrogeochemical characterization of water samples, in 6 lots, under the conditions set out in the technical specifications.

Collection of information, field work, collection of water samples and development of hydrogeological information layers in the sector of Terra Alta - Baix Ebre - Montsià - Ribera d'Ebre - Southern Priorat - Southern Baix Camp.

Collection of information, field work, collection of water samples and development of hydrogeological information layers in the sector of Segrià - Garrigues - Conca de Barberà - Northern Priorat - Northern Baix Camp.

Collection of information, field work, collection of water samples and development of hydrogeological information layers in the sector of the Western Pyrenees - Alt Urgell - Noguera - Northern Cerdanya.

Information collection, field work, collection of water samples and elaboration of hydrogeological information layers sector of the Eastern Pyrenees - Berguedà - Selva

Information collection, field work, collection of water samples and elaboration of hydrogeological information layers Moianès sector - Montseny - Vallès Oriental - Baix Llobregat - Vallès Occidental sud

Analytical analysis of basic physical-chemical and hydrogeochemical characterization of water samples