Bou Regreg 3.31

The Bou Regreg is a river located in western Morocco which discharges to the Atlantic Ocean between the cities of Rabat and Salé. The estuary of this river is termed Wadi Sala.The river is 240 kilometres long, with a tidal estuary of approximately 24 kilometres extending upriver. Its average discharge is 23 m3/s and can reach 1500 m3/s during periods of flooding. The source of the river originates from the Middle Atlas mountains at an altitude of 1627 meters on the level of Jbel Mtourzgane and of Grou and descends to its mouth at the Atlantic Ocean separating the cities of Rabat to the south and Salé to the north.Water qualityWater quality issues of the Bou Regreg include tidal saltwater intrusion, excessive runoff of nitrates from agricultural land uses and mercury contamination thought to arise from use of certain pesticides within the drainage basin.