Water Extraction & Sourcing Overview¶
Accessing reliable groundwater, spring water, or rainwater is the foundational step in any WASH program. Selecting the appropriate extraction technology depends directly on local hydrogeology, depth to water table, soil formation hardness, capital budget, and community maintenance capacity.
💧 Need to Match Extraction to Local Geology?
Use our interactive sister tool WhatWater.info to filter by water depth, soil hardness, and budget constraints.
RURAL WATER SOURCE MATRIX
─────────────────────────────────────────────────────────────────────────────
SOURCE TYPE WATER QUALITY CAPEX RANGE STANDARD LIFESPAN
─────────────────────────────────────────────────────────────────────────────
Deep Borehole (>40m) High (Protected) $5,000 - $15,000 15 Years
Manual Well (<30m) Moderate-High $400 - $2,500 7 Years
Sand Dam (Riverbed) High (Filtered) $6,000 - $12,000 30 Years
Protected Spring Very High $1,000 - $4,000 20 Years
Rainwater Catchment High (Roof-run) $500 - $2,500 15-20 Years
Hydraulic Ram (Stream) Moderate $200 - $1,500 10 Years
─────────────────────────────────────────────────────────────────────────────
Detailed Technology Guides¶
- Manual Well Drilling Methods — Comprehensive comparison of percussion, jetting, sludging, and augering techniques.
- The Baptist Manual Percussion Method — Detailed field guide to Terry Waller's low-cost dart valve percussion system.
- The EMAS Drilling Method — Mobile percussion and sludging transportable on a bicycle.
- The Mzuzu Sludge Drill — Malawi low-cost community drilling system.
- Mechanized & Hybrid Drilling — Village Drill, rotary mud rigs, and DTH hammer systems.
- Hand & Low-Tech Pumps — Afridev, India Mark II, Rope Pump, and treadle pumps.
- Solar-Powered Pumping — Photovoltaic DC submersible systems and header tank storage.
- Hydraulic Ram Pumps — Zero-electricity water-hammer kinetic lift pumps.
- Rainwater Harvesting — Ferrocement tanks and rooftop catchment design.
- Sand & Subsurface Dams — Artificial sand aquifers in seasonal dry riverbeds.
- Spring Protection — Gravity spring boxes and community piped distribution schemes.
- Fog Harvesting — CloudFisher mesh nets for arid mountainous regions.