"Water_supply_and_sanitation_in_Bangladesh#Arsenic_contamination_of_groundwater" . . "a shortage of water" . "Water supply and sanitation in Bangladesh" . . "Ground Water Management Ordinance" . . . "National Water Authority (DWASA)" . . "Bangladesh Irrigation Water Rate Ordinance" . "National Water Policy of 1999" . . . "Bangladesh" . . "national water situation" . "Water_supply_and_sanitation_in_Bangladesh#History_and_recent_developments" . "Water Supply and Sewerage System" . "Water supply and sanitation in Bangladesh" . "Dhaka Water and Sewerage Authority" .