Action For Water



Slow Sand Filter 


Slow sand filter is an innovation for cost effectively making clean water available to the masses. The Slow sand filter works without any external energy source utilizing the gravitational gradient and supplies potable water to the masses at a rat of 6 liters per minute. This water can be subsequently supplied to the village through pipeline that can be laid specifically for this purpose. Detailed water quality tests can be conducted for both the incoming and the outgoing water. HSS could take technical expertise from professional organizations to implement this in a proper way.




Rainwater Harvesting


Rainwater harvesting for supplementing the available water: In the hills the topography promotes quick runoff and the water soon after its precipitation runs down slope well beyond the limits where it could be productively used and therefore it has to be conserved where it falls and has to be utilized optimally thereafter.Conservation of the roof top runoff has been demonstrated as an economic and easy technique of augmenting water availability. A large number of Ferro-cement tanks of around 4,000 liters capacity have been constructed in the region for the collection rooftop rainwater runoff.












Recharge Zone Management


for reducing erosion and enhancing spring yield together with soil moisture regime: Appreciative of the relationship between groundwater recharge and the spring yields the recharge zones of the springs were traditionally protected by the masses by devoting the forests to local deities and imposing religio-magical sanctions. Recharge pits or small water ponds (Chaals in local parlance) were also maintained by the masses at crucial locations. Learning from the past Himalya Seva Sangh is one of the organizations that appreciate the intricacies of the hydrological cycle and gives adequate attention on the recharge zones of the springs for maximizing water availability in the region.
The atmospheric precipitation entering the ground surface adds to the groundwater reserves that feed the natural seepages around the valley slopes in the hills. The quantum of the rainwater entering the ground is a function of the duration of time for which the water gets opportunity of remaining at a particular altitude. This retention time is decided upon by the nature of vegetal cover, physical resistances to the flow of water on ground and the others. Chaals represent the understanding of the groundwater regime and response of the local populations in their quest for augmenting spring discharge.
Himalaya Seva Sangh through its partner organizations has undertaken extensive afforestation in the recharge zone of a large number of springs, brought about appreciable undergrowth and constructed physical hurdles for the flow of water and have constructed a number of Chaals). These measures have significantly increased the spring yields in some areas of our intervention.

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