Environment Secretary Roy A. Cimatu and Manila Mayor Isko Moreno (2nd and 3rd from left, respectively) inspect the area beside Estero de San Antonio Abad in Bgy. 718 Malate, Manila where the houses of around 50 informal settler families were demolished to give way to the clearing of the waterway. The estero, which was found to have high coliform level of 10 million most probable number per 100 ml, drains to Manila Bay and contributes to the poor water quality of the bay. Joining Cimatu and Moreno is Department of Environment and Natural Resources Undersecretary for Solid Waste Management and Local Government Units Concerns Benny D. Antiporda (extreme left).