The contract report describes the development of a hydrogeological model for the “Relziķi 2” deposit in the Ogre district of Tīnūži parish. Using hydrogeological modeling simulations, forecasts of changes in water levels for nearby habitats and natural monuments have been made, both for the “Relziķi 2” deposit separately and in interaction with the nearby deposits “Kranciemas quarry”, “Kranciemas first dolomite deposit” and “Kokneši 2”.