Water Supply

On 18 July, Renita D’Souza and her family woke up with neck deep water in their house at Hanuman Nagar slum along the storm water drains. They found themselves surrounded by houses laced with dirt. “Our house was full of muck and we had to wade through a foot-deep grime throughout the day and there was no water to either drink or clean up," she said.  The electricity supply to their house was disconnected as a precautionary measure. The entire neighbourhood could not light gas stoves. “We had to ask our children to buy vada pav because we couldn’t even…

Over the years, we have noticed that giving people tips on water conservation often does not translate into practice, especially over the long term. A recent study by researchers at IIM-B shows that behavioural interventions could be a solution. The researchers, Vivek, Deepak Malghan and Kanchan Mukherjee, conducted the study at a 120-unit affluent apartment community in the outskirts of Bengaluru. Each flat in the complex had individual water meters installed already, so each household’s consumption could be measured. The researchers divided the households into four groups: The T1 group were given weekly reports on their per-person water usageT2 group…

With the severe water scarcity in Bengaluru, a large number of residents have to buy water, more so during summers. And due to indiscriminate digging of borewells in the rush to find water, the city's groundwater has been overexploited. But the efforts of many Bengalureans in rainwater harvesting (RWH) already show the way ahead for the city. Currently, Bengaluru is the Indian city with the second-highest number of RWH installations (1.55 lakh), next only to Chennai. Highlighting such efforts, and discussing how to amplify these, was the focus of a webinar jointly organised by BWSSB (Bengaluru Water Supply and Sewerage…

Vaikund Sundaram is an apartment community in Karapakkam on Old Mahabalipuram Road where I have been residing for the past six years. We are dependent on tankers for  water supply and we spend a lot during the summer to buy water every year. We wanted the water usage to be monitored better, share the costs based on the usage and avoid wastage of water. We have found a sustainable way to tackle this issue by the use of water meters. Water woes As the city expands its limits, demand for basic amenities like drinking water is increasing day by day.…

Monsoons are here and who doesn’t have happy memories of the fragrance of the first rain bringing along with it the much-needed relief from the weary heat of the Bengaluru summer. But then, along with memories, rains also bring inconveniences like localised flooding in urban areas and increased commute time!  In recent years, we see many Bengalureans struggling to access water during the summers. And one wonders where all the excess water from the rains disappeared.  Data shows that Bengaluru typically receives the highest rains in the months of August, September, and October. With August not too far away, now…

In many communities, the pandemic brought about a desperate need for a resource essential to survival: clean drinking water. Mumbai-based volunteers from the Ismaili Civic, a wider movement run by the Ismaili Muslim community globally, played a crucial role in the city by delivering water during the pandemic, earning praise both from doctors and the state government.  In early June 2020, they began distributing clean drinking water to COVID19 centres, first to larger hospitals and then to smaller ones (which had cropped up due to increasing cases), continuing through the deadly second wave, supplying close to 40,000 litres of water…

It has been two months since Geetha Foundation apartments in Puzhuthivakkam installed water meters at a cost of Rs 8500. Since then, the apartment of five flats has been able to save 100-150 litres of water in a month. As part of the installation, a float switch sensor is added to the overhead tanks which sends an alert as soon as water levels reach a particular level. This stops the roof/storage tank from overflowing, resulting in significant conservation of water. “Water level in the storage tank is maintained at the level of the float valve inside the tank. Once water…

The Cauvery Stage V project, once commissioned, is supposed to solve the water crisis in Bengaluru's peripheral areas. Though the project is supposed to be completed by 2023, as we saw in part 1 of this series, work on many components of the project has only just started. At the same time, many apartments in these areas have not been applying to Bengaluru Water Supply and Sewerage Board (BWSSB) for new Cauvery water connections. In this part, we explore why. SJR Watermark apartment in Ambalipura, along Haralur main road, off Sarjapura Road, is one such apartment that hasn't applied for…

Bengaluru's peripheries - the 110 villages that were added to the city in 2008 - have long depended on private tankers for water supply. The Bangalore Water Supply and Sewerage Board (BWSSB) had promised them water supply by 2023 through its Cauvery Stage V project. Cauvery Stage V project aims to bring in an additional 775 MLD (Million Litres per Day) water from river Cauvery into Bengaluru city. As per the final project report in 2017, the total demand for the 110 villages was calculated to be 350 MLD as of 2024. The report says demand is expected to go…

Bengaluru’s water woes are not a secret to anyone, all thanks to the city’s water activists and environmentalists who have fought tooth and nail to promote Rainwater Harvesting (RWH) and sustainable water management in the city. Two well known names campaigning for water sustainable are Vishwanath Srikantaiah and Shubha Ramachandran, both from the Biome Environmental Trust. Vishwanath is a water activist and an urban planner. He has worked in collaboration with the local communities to revive 10,000 wells with the support of the well-diggers, and helped in the development of 100,000 recharge wells. Shubha is a water sustainability expert. She…