Unit stores sewers Examples Collects rooftops Two forms gardening creek flow wadi water water flow stream bed irrigation agriculture paved areas traditional water bodies Qanat systems valley bottoms ground surface allegianceindia water resources underground dams effective method specialized wells Æ Water Management pasture improvement Allegiance Enterprise Flood water diversion nearby cropping fields Flood Water Harvesting Groundwater Harvesting groundwater extraction unconventional methods other non-potable purposes Allegiance Water Management Rain Water Harvesting System Surface Runoff Rainwater Harvesting