Groundwater samples from existing wells in different farms/villages of Hub valley were collected and analyzed for chemical constituents, Na+, K+, Ca++, Mg++, CO3- , HCO3 Cl- and SO4- along with their physical properties. The value of total dissolved salts (TDS), sodium adsorption ratio (SAR), residual sodium carbonate (RSC) and exchangeable sodium percentage (ESP) of the samples were then calculated to investigate their irrigation chemistry. The overall results show that 44% samples are within safe limit. Whereas 38% are marginal and only 18% samples are hazardous from irrigation point of view. A considerable quantity of Hub dam water, which is presently being used for irrigation in Lasbella district, can be saved for drinking bpurposes by replacing it with well waters to hub valley within safe to marginal limits. Underground water of Hub valley is some what inferior than the underground water of Malir valley from irrigation point of view.