Articles by Shubha Ramachandran

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…

Pic: Shubha Ramachandran Often times we (BIOME) are asked to compare the prices of recharge wells quoted by various well diggers. After speaking with the clients, we realise that they maybe comparing apples to oranges. Apples to oranges – since the well is not a standardised product but requires and includes several components and activities. Each well digger has his own vision of the well and related costs. Hence this blog post will throw some light on the components and activites that go into the making of a recharge well. And here we are not speaking of quality of activities…

Bangalore is growing at an unprecedented rate,and its sprawling expansions outpaces the public utility's ability to accommodate the skyrocketing demand for water and sanitation services. It is increasingly common for new residential communities to assume total management for their own water and sanitation services through the resident welfare associations. Most of these depend on borewells and tankers, which they sooner or later realise is not a sustainable option. Groundwater recharge, one of the forms of rainwater harvesting, can be instrumental in achieving long-term water security. By taking water out of over-stressed storm drains and replenishing them into shallow aquifers, groundwater…

We had good rainfall (1000mm plus on an average) in 2015. Yet, this summer was harsh for everyone. Would it have helped if we had harvested rainwater? The primary analysis from the project area (Yamalur watershed) observes that there is enough water available for everyone if we do rainwater harvesting leaving excess water to go to the lakes and/or groundwater recharge.   A watershed is the area of land where all of the water that falls in it and drains off of it goes to a common outlet. Biome Trust has been involved in an action research project called Particpatory…

With the rains on their way in, it's a good time to clean up our rainwater filters, sumps and recharge wells.Lately we have received a lot of queries on how to go about with ground water recharge. Groundwater recharge can be achieved by digging recharge wells and redirecting rainwater into them.  Below are the phone numbers of some of the well diggers who can dig wells upto 40 ft deep Krishna : 99862-03022 Pedanna : 97424-23145 Antony: 80507-95139, 90357-10920, 9100691501 Kanthappa: 99169-85003 Muniyappa: 94485-70684 Mohan: 99869-22193 This brochure also provides some information on the process of locating and digging the…

Water Metering is an often discussed topic, and apartment metering, even more so, due to the complications rising out of multiple inlets. There have been a few and often spoken about apartments that have implemented metering at a household level - namely Nestor Raga, Ashoka Windows, Samhita Square etc. We came across this plumber—Krishnamoorthy—who in the meanwhile has implemented metering in multiple apartments. Here is the complete list. The largest is an apartment in Hyderabad - 800+ homes!!! We are also impressed with the fact that he has diligently maintained a list of all apartments where he has worked. A…

A map of the area under study. Pic: Biome As part of the participatory aquifer management studies in the Yemalur watershed, we conducted a Vertical Electrical Sounding (VES) survey to get a clear geological profile of the ground below. A description of the activities is given below. Objective The VES or Resistivity Survey is a non-destructive in-situ test which is conducted  by measuring variations in the electrical resistivity of the ground in order to to locate and estimate the characteristics of the aquifer below. Methodology The survey is done by applying small electric currents across arrays of ground electrodes (depth…

Halanayanahalli- off Sarjapur road is like many other parts of the city depends on groundwater for water needs. Karnataka State Natural Disaster Monitoring Center (KSNDMC) has put up a weather station at the Halanayakanahalli Gram Panchayat Office. We obtained the rainfall data from KSNDMC and here are the results... 878.5 mm from April to October 2015. Wonder, how much the total would be if November rainfall data is added.   Month Rainfall (mm) Rainfall days Highest rainfall event (mm) April 111.5 12 28.5 May 73.5 10 20 June 120 18 44.5 July 55.5 12 29 August 186.5 15 45.5 September 171.5 12…

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…

Sushant Potdar, an intern with BIOME Trust did a study on the Open Wells in the Yamalur Watershed. The complete report can be seen below and is also available here. The study seems very relevant, especially at a time when borewells deeper than 1000 feet fail and there is no access to water supplied by the BWSSB in this area. Sushant documents 21 wells that have still not been closed. There are many more in the area that are worth documenting and retaining. All wells are privately owned and hence the maintenance of the well becomes a challenge. What is…