groundwater

Here is a drainage map of the city of Bengaluru sourced from the Central Ground Water Board website. No city sitting on a ridge line should actually get flooded but we have achieved the impossible — of course in parts. A dotted ridge line divides the city between the Vrishabhavathy-Arkavathy-Cauvery basin and the Dakshina Pinakini, from the North to the South. There is a huge difference between these two in the slope, the hydro-geology, the soil, the rainfall, the built up area etc. The drainage patterns - the rajkaluves - are interesting too. They are more dendritic in the Vrishabhavathy-Arkavathy-Cauvery basin…

Three communities in southeast Bengaluru - Rainbow Drive, Adarsh Palm Retreat and Renuka School adjacent to Kaikondarahalli Lake, have created individualised water management plans to solve problems like water shortage, reliance on borewells and flooding. Knowledge and understanding of their groundwater system has allowed these communities to make smarter decisions when it comes to withdrawing groundwater and making the conscious effort to recharge water back into the earth. Biome Environmental Trust, ACWADAM and Mapunity with funding from Wipro Ltd. spent three years researching the water that lies beneath the surface in a research project called Participatory Aquifer Mapping (PAQM). An…

Pune has a story similar to many other cities in India that grew exponentially without much warning. The unplanned development hit the water resources badly, increasing the city’s dependence on groundwater. Now, the city experiences water scarcity every year, even when the monsoons have been plentiful. Although the authorities have assured the citizens of adequate water storage in the dams and fewer water cuts this year, long-term, sustainable solutions still evade all political discourses. The good news, however, is that the citizens and the housing societies have now started coming forward to work around the problem and advocate changes at…

An impromptu weekend plan landed me in Wonderla Amusement Park in Hyderabad. My fear of heights made me go only on those rides that seemed slower and lower. These happened to be the water rides, as they were my safest bet. Even if all the safety belts and harnesses of the ride failed, I would just end up falling in the water, with all my bones and skull intact. Nevertheless, I enjoyed myself. At that point, I never questioned how this park was procuring water for all its rides. Nor did I consider the possibility of water being extracted and…

This city of 11 million, formerly known as Bangalore, is home to India’s software giants and its startups, as well as multinationals such as Samsung, Oracle and Amazon. com. The growing tech sector symbolizes urban India’s upward mobility and economic vigor. But an existential threat hovers over all this new prosperity. Bengaluru is running out of water. A drought that has dropped reservoirs to dangerous levels is only part of the problem. The situation is made worse by rampant and unregulated extraction of groundwater, which is depleting underground aquifers. Anyone who can afford to drill a borewell to tap groundwater has done it, particularly in the…

The fully functional water treatment system. Pic: Akshatha M Arjun Ravi Kumar, a builder, once visited T-Zed, an apartment-cum-villa community that treats and reuses all its waste water. There he met Srinivasan Sekar, who as part of the Management Committee there, worked on the water system design. He recalls, "Sekhar offered me a glass of tap water saying that it is generated from sewage, initially I was a bit reluctant to drink it but when I did, (I realised) it was as good as any bottled water. " Arjun lives in an apartment that his firm built - Surbacon Maple,…

Bengaluru is growing, but at a much faster pace than expected. With such rapid urbanization, peri-urban areas are concurrently growing faster beyond the planned rates of infrastructure development of local ecosystems. The random expansion of cities by dissolving or merging the boundaries of nearby cities, towns and villages in a disorganized manner without any foresight poses various social, economic and environmental risks. In Bengaluru and its vicinity too, this has predictably led to an imbalance in terms of growth versus maintenance, witnessed by increasing slums, growing threat of newer and virulent epidemics, and poor access to basic services such as…

There isn't any water left in river Cauvery to draw, for the use of ever-expanding city of Bengaluru. How do we, then, get water to drink? Here is a plan - creating another Cauvery for the city. Matthondu Cauvery Related ArticlesNo Cauvery water, no water problems. But that was thenWhy Cauvery Stage IV water has reached Bangalore, but not your home

Smart technology can only be as smart as the people who use it, otherwise it only ends up as another fancy gadget in the house! As S Vishwanath, a water expert says, Smart cities is the mantra of our times with a 100 slated to roll out in India. Ideological debates rage over how to define ‘smart’ and whether technology is what makes for ‘smart.’ Barring the debate, a peculiar way though would be to say that smart people make smart cities. And technology can indeed play an important role to aid people in making ‘smart’ informed decisions, especially about responsible…

There is not even a name for it, not Sangama, not anything, but just Kudlu... the meeting point. Here the Vrushbhavathy, which rises from the Bull Temple in Basavangudi, Bengaluru meets the Arkavathy, which rises from the Nandi Hills range. Urban rivers have become 'nullahs' carrying sewage, the rural rivers—if you can even call it such—are dammed for urban water needs, for irrigation and for electricity. The Arkavathy is born here. At the birth place of the river, the well water is full and clean... The gentleman has been crossing the Arkavathy daily for the last 50 years... he wades across…