The Meninting Dam is one of the dam recently being built in West Lombok, Indonesia. Hydrogeologically, this dam was built on the Mataram-Selong Groundwater Basin, which is known to be a highly productive aquifer. However, on this area, there is no extensive research in term of hydrogeological conditions has been conducted. Therefore, the objective of this research is to present the conceptual model of the hydrogeology of the Meninting Dam and its surrounding area. This study was carried out by collecting primary and secondary data of the geological, hydrological, and hydrogeological conditions in the research area. Results show that there are two layers of unconfined aquifer, one layer of aquitard, and one layer of confined aquifer on this area. The unconfined aquifer built by layer made up of pebble, sand, clay, gravel to boulder but also layer of pumiceous tuff with the thickness up to 40 m and hydraulic conductivity value between 2,1x10-4 cm/s and 5x10-3 cm/s. The confined aquifer is composed by pumiceous tuff, has thickness ranges up to 100 m and K value of about 5x10-4 cm/s. Between unconfined and confined aquifer, there is a thick layer of aquitard made up of laharic breccia.