Challenge achieved: Following principles of sustainability and excellence, manage the activity including its environmental aspects through a management system in accordance with the international criteria applied by the CABB itself, preserving the CABB Sanitation network that in its zone II covers the following locations: ARRIANDI, BEDIA, ELORRIO, GATIKA, GORLIZ, LARRABETZU, LEKEITIO, MARKINA, MUNGIA AND UBIDE.