The report documents a detailed collection of chain models from the source to the decentralized anaerobic digestion facilities for different situations representative for European regions based on in-depth understanding of technical and socio-material conditions for decentralized biowaste valorization. The chains also consider stakeholders' interactions and processes' constraints. The report contains the list of the key parameters for the database with explanations. It includes documentation on profiled European regions' situations in terms of waste collection procedures. Two practice examples for data collection procedures are presented.