The Project "Environmental Protection of Lake Sevan" (EU4Sevan) co-financed by the European Union and co-implemented by UNDP has announced a tender for Assessment of the consequences/impact  of raising the level of water in Lake Sevan. The deadline for participation is 4 July. You can send your bids by registering in the UNDP Procurement website https://procurement-notices.undp.org/view_notice.cfm.