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agricultural Agus aquatic weeds Asian Development Bank asphaltic concrete Bangladesh biogas canal capacity centre circle Inquiry card Company completion concrete construction contract contractor cost crest length dam volume desalination developing countries Development Bank downstream drilling drinking water electric energy equipment Finance further information circle groundwater hydraulic hydrilla hydro hydroelectric hydropower ICOLD includes India industrial information circle Inquiry Ingersoll-Rand installed intake International Development Association irrigation Lake Lake Lanao Lanao Magat Magat river maintenance Marawi city material ment million National operation organisation Philippines Phone pipe pipeline plant pollution potential problems production programme proposed loan Pulangi pumping station Reader reply card region reservoir river Ronserail Ruahihi rural sanitation scheme Semperit soils spillway storage structure tanks Telex tion tunnels units upstream valves Water Decade water hyacinth Water Resources Water Supply Project water treatment World Bank World Water