Groundwater Stories

Most borewells along Sarjapura Road do not yield much water. A new apartment opposite Kaikondrahalli Kere is also struggling for water as their borewells run dry. The builder decides to revive an old  open well in his property. The well is  18ft in diameter and 40ft deep and has been fully closed with mud. Pedanna the well digger is called in. Alongwith his team Pedanna excavates all the 40ft of mud manually. They strike water at about 20ft below ground level. The water has to be pumped out as they continue to dig. The well is now completely excavated and…

Most borewells along Sarjapura Road do not yield much water. A new apartment opposite Kaikondrahalli Kere is also struggling for water as their borewells run dry. The builder decides to revive an old  open well in his property. The well is  18ft in diameter and 40ft deep and has been fully closed with mud. Pedanna the well digger is called in. Alongwith his team Pedanna excavates all the 40ft of mud manually. They strike water at about 20ft below ground level. The water has to be pumped out as they continue to dig. The well is now completely excavated and…

See the map to Identify the 4 major reservoirs in Karnataka : Hemavathy, Harangi, KRS and Kabini. Inflows and Outflows to all 4 reservoirs are monitored and known and this forms the basis of all calculations The river flows into TN and at Biligundlu there is a measuring station that tells you how much water flows into TN from Karnataka The water that flows into the river downstream of KRS and Kabini is measured at Biligundlu, is expected to flow in from about 22,000 sqm and in an average year can contribute about 80TMC. About 740TMC is the total water…

See the map to Identify the 4 major reservoirs in Karnataka : Hemavathy, Harangi, KRS and Kabini. Inflows and Outflows to all 4 reservoirs are monitored and known and this forms the basis of all calculations The river flows into TN and at Biligundlu there is a measuring station that tells you how much water flows into TN from Karnataka The water that flows into the river downstream of KRS and Kabini is measured at Biligundlu, is expected to flow in from about 22,000 sqm and in an average year can contribute about 80TMC. About 740TMC is the total water…

A question we often get asked as rainwater harvesters is, is there any point in building a recharge structure adjacent to a lake ? Does the lake not recharge ground water ? Will the recharge structure/well make any difference ? This is a very pertinent question and I can write on what we have seen from experience Very often you do see old open wells adjacent to lakes. The well used to be the place from where people drew the water for use. The water level in the lake and the water level in the well would more or less…

A question we often get asked as rainwater harvesters is, is there any point in building a recharge structure adjacent to a lake ? Does the lake not recharge ground water ? Will the recharge structure/well make any difference ? This is a very pertinent question and I can write on what we have seen from experience Very often you do see old open wells adjacent to lakes. The well used to be the place from where people drew the water for use. The water level in the lake and the water level in the well would more or less…

Having worked with, seen and spoken to numerous borewell owners, it is apparent that the borewells that yield well; say about more than 60,000 litres of water per day (that are used by layouts, tanker operators, industries etc) are those that are shallower than 800ft. Its not the 1000+ft borewells that yield copious amounts of water. Even if it is a 1000+ft borewell that is yielding a lot of water, a camera inspection will reveal that actually its the shallower cracks that yield more water. Take a look at the attached picture to somewhat make sense of Bangalore's geology and…

Having worked with, seen and spoken to numerous borewell owners, it is apparent that the borewells that yield well; say about more than 60,000 litres of water per day (that are used by layouts, tanker operators, industries etc) are those that are shallower than 800ft. Its not the 1000+ft borewells that yield copious amounts of water. Even if it is a 1000+ft borewell that is yielding a lot of water, a camera inspection will reveal that actually its the shallower cracks that yield more water. Take a look at the attached picture to somewhat make sense of Bangalore's geology and…

Can Bengaluru work towards getting back to its openwells? This is the story of a community (Adarsh Palm Retreat near Devarabeesanahalli Lake) near a lake that is looking to use an open well as one of its sources of water. Do watch the video Bengaluru (and other growing cities) are increasingly dependent on groundwater. In current time, borewells, are a very important source of water. Bengaluru now needs to manage its grounwater sustainably. While the city suffers from drying and dying borewells there are also pockets where water tables are shallow. We need to understand this and become stewards of…

Can Bengaluru work towards getting back to its openwells? This is the story of a community (Adarsh Palm Retreat near Devarabeesanahalli Lake) near a lake that is looking to use an open well as one of its sources of water. Do watch the video Bengaluru (and other growing cities) are increasingly dependent on groundwater. In current time, borewells, are a very important source of water. Bengaluru now needs to manage its grounwater sustainably. While the city suffers from drying and dying borewells there are also pockets where water tables are shallow. We need to understand this and become stewards of…