In many areas, raw sewage flows untreated directly into the river through dry riverbeds (wadis), contaminating it and creating a stench which has been a cause of numerous complaints, particularly during the summer months.
Di banyak daerah, limbah mentah tidak diolah mengalir langsung ke sungai melalui sungai kering (wadi), mencemari dan menimbulkan bau busuk yang telah menyebabkan banyak keluhan, terutama selama bulan-bulan musim panas.