This is below the UNDP’s criterion, 1,000 m /cap./year. Amongst the water basins, the Loukkos, Tangier and Mediterranean coast basins present the highest value, 1,350 m3/cap./year, the Bouregreg and Saharan regions reveal the lack of regional homogeneity, having only 130 m3/cap./year to 140 m3/cap./year. An important water balance deficit is also noted for Oum Er-Rbia.