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Source development

Extraction

Storage

Centralised treatment

Conveyance

Household level treatment

 

Rooftop rainwater...

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Fog collection

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Dew collection

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Unlined hand-dug wells

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Lined hand-dug wells

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Manually drilled wells

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Mechanized drilled wells

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Subsurface dams

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Infiltration galleries...

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Tube recharge

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Spring protection

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Direct surface intake

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Sump surface intake

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Sand storage dams

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Natural catchment and...

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Rope and bucket

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Household level suction...

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Household level lift...

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Community level lift...

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Community level suction...

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Community level lift...

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Gravitational roof...

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Traditional designs

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Elevated storage tanks

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Surface-level tanks

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Below ground tanks

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Sand storage dams

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Natural catchment and...

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Screening and straining

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Pre-Settling

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Aeration

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Coagulation/flocculation

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Sedimentation

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Roughing filter

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Rapid sand filter

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Slow sand filtration

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Micro filtration

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Activated carbon

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Desalination

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UV treatment

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Chlorine disinfection

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Commercial...

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Pressurized distribution

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Gravitational...

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Public standpost

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Water vendor / kiosk

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Manual transport

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Settling

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Straining

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Aeration

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Natural coagulation

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Chemical coagulation

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Iron removal filter

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Biosand filter

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Ceramic filter

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Charcoal filter

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Adsorptive arsenic...

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Precipitative arsenic...

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Pasteurization

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Boiling

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Chlorination

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UV treatment

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Desalination

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Commercial disinfection...

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Commercial...

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