The study conducted to investigate the hydrological system of"Mianwali'area comprising of alluvium aquifer. Groundwater dynamics includ-ing groundwater direction, velocity and recharge mechanism investigated to assess the groundwater sources conservation in the area.Hydrological sample collected and analyzed for stable isotopes (O-18 and H-2); radioisotopes (3H), Chloroflourocarbons (CFCs) and groundwaterreal andfiltration velocities measured to understand the groundwater dynamics. Isotopic data suggested a variant recharge mechanism dueto localize impacts of canals, lake and river. Groundwater residence time, using Tracer Lump Parameter Model (LPM), and Chloroflourocar-bons (CFCs) data, suggest a very young water in the range of 14-59 years old. The real andfiltration velocities of groundwater found to be22.2 cm/day and 10.94 cm/day, respectively, in south-west direction and in-situ effective porosity of the aquifer was 49.3%. The hydraulicconductivity of the aquifer was estimated using grain size analysis that varies from 48 to 278 m/day with average value of 139 m/day.
