A new conceptual design for the ANDES laboratory as part of Agua Negra was requested to Lombardi, the company in charge of the civil work design of the Agua Negra tunnel, at the end of 2014. The final document is available (PDF, 6.6 MB, in spanish) and details 6 options depending on the location and volume distribution of the laboratory.
The third option was chosen being the deepest and having the best acceses, in particular in case of emergency, for a cost similar to the other options. It answers properly to all the requirements of the preliminar proposal.
Work is now ongoing to pursue the detailed study of the laboratory, in order to include ANDES in the Agua Negra tunnel tender process.