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Source development
Extraction
Storage
Centralised treatment
Conveyance
Household level treatment
Rooftop rainwater...
Fog collection
Dew collection
Unlined hand-dug wells
Lined hand-dug wells
Manually drilled wells
Mechanized drilled wells
Subsurface dams
Infiltration galleries...
Tube recharge
Spring protection
Direct surface intake
Sump surface intake
Sand storage dams
Natural catchment and...
Rope and bucket
Household level suction...
Household level lift...
Community level lift...
Community level suction...
Gravitational roof...
Traditional designs
Elevated storage tanks
Surface-level tanks
Below ground tanks
Screening and straining
Pre-Settling
Aeration
Coagulation/flocculation
Sedimentation
Roughing filter
Rapid sand filter
Slow sand filtration
Micro filtration
Activated carbon
Desalination
UV treatment
Chlorine disinfection
Commercial...
Pressurized distribution
Gravitational...
Public standpost
Water vendor / kiosk
Manual transport
Settling
Straining
Natural coagulation
Chemical coagulation
Iron removal filter
Biosand filter
Ceramic filter
Charcoal filter
Adsorptive arsenic...
Precipitative arsenic...
Pasteurization
Boiling
Chlorination
Commercial disinfection...
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