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Mumbai: When the Brihanmumbai Municipal Corporation (BMC) triggers a 10% water cut across Mumbai, it’s not just a seasonal nuisance. It’s a flashing red light for India’s urban planning scheme.
Beginning today, the nation’s financial capital will be subjected to daily water rationing. Reservoirs at a perilously low 23.52% of total annual storage have forced the administration to ration water to extend existing supply to mid-August. This precautionary measure is largely driven by meteorologists predicting erratic monsoon onset due to residual El Niño weather.
But Mumbai is not the only victim. India’s cities are collectively drying up. In this editorial, we delve into why our cities are running dry, the socioeconomic chaos it will cause, and how we can radically alter the status quo.
Why Indian Cities are Dehydrated
Urban water crises are almost never the result of a single dry spell. They’re the result of a lethal cocktail of climate volatility, mass migration, and structural neglect.
- Climate Volatility and El Niño Dependence
Most Indian cities depend heavily on surface water bodies (lakes and dams) that receive water from monsoon rains, so when climate phenomena such as El Niño upset the regular rain patterns, water reservoirs do not get refilled.
The Mumbai Situation: The usable water stock of Mumbai’s seven supplying lakes combined is about 340,399 million liters against an annual consumption requirement of 1.45 million million liters. In the absence of rationing, a delayed monsoon would be catastrophic.
- Concrete Deserts and a Depleted Groundwater Table
As cities expand horizontally and vertically, open soil is replaced with concrete, blacktops, and glass. This stops the natural process of groundwater recharging, and results in rainfall falling on city surfaces turning into flooding, and flowing straight into drains and out of the city. But groundwater tables are aggressively pumped to compensate for what is missing.
- Antiquated Infrastructure and Non-Revenue Water (NRW)
Massive amounts of treated water are never produced to the citizen’s tap. Leaky pipelines, deteriorating British-era infrastructure, and illegal tapping contribute to the problem of Non-Revenue Water, water that is produced but “lost” before it reaches the household or the bill.
The Ripples: The Price of a Water Cut
Water cuts ripple across society when a city ration water, revealing deep-seated economic and humanitarian fault lines.
The Water Mafia
When public taps dry up private water tankers come in to fill the void. This sets up a parallel economy of unregulated vendors who rob the townsfolk, selling only the lowest quality groundwater at outrageous prices.
The Socioeconomic Divide
Water cuts don’t impact everybody evenly. High-rise societies can easily afford to buy private water tankers or install high-tech rainwater harvesting systems. For others living in informal settlements and low-income areas it means waiting in long lines for hours, often at the cost of daily wages, and enduring major sanitation challenges.
India’s major water crises
To grasp the magnitude of the crisis, we need to understand how various urban topographies in India have been impacted by decades of flawed water mismanagement.
Bengaluru (The Groundwater Collapse)
The Context: Often regarded as India’s Silicon Valley, Bengaluru faced a massive water crisis where more than 6900 of the city’s 14,000+ public borewells abruptly dried up.
Explanation: Bengaluru’s crisis is emblematic of the reckless, unplanned urbanization that has plagued India for decades. Bengaluru’s founders built an interlinked system of man-made lakes to manage the topography. Yet in the last few decades, real estate development relentlessly encroached, paved over, or polluted these lakes. As there was no lake to function as a natural aquifer to recharge the ground for the borewells, the water table collapsed. Thousands of deep borewells that were instrumental in nation’s food production became useless, while millions of Bengaluru residents had to rely on costly tanker cartels.
Chennai (Day Zero – 2019)
The Context: In June 2019, Chennai famously faced “Day Zero”, a situation in which the city’s four main reservoirs (Red Hills, Cholavaram, Poondi, and Chembarambakkam) abruptly dried up, and the city had to bring millions of liters of water daily from hundreds of kilometers away by special trains.
Explanation: Chennai’s crisis was caused by poor infrastructure management and destruction of wetlands. Chennai is located on a coastal plain with abundant rainfall every year. Yet the wetlands and natural floodplains (such as the Pallikaranai marsh) were heavily built over, so the city was unused to it when heavy rainfall flooded the city, because it had nowhere to go. Yet when it dried up, it had no retained reserves. This was the vehicle to make the point that a city so located, receiving so much rain, had run out of its drinking water.
Shimla (The Himalayan tourist crisis)
The situation: The tourist capital of the Himalayas, Shimla, was struck by a major crisis when its main water sources, the Giri and Ashwani Khads (streams), ran dry or became severely contaminated.
The analysis: Shimla’s crisis illustrates ecological overshoot and climate change. Developed by the British for a population of roughly 25,000, the city has grown to more than 170,000 permanent residents with a huge influx of tourists. Warmer summers and less snowfall in winters meant the springs ran dry. Moreover, the natural streams were contaminated by untreated sewage, causing a rise in jaundice cases, and authorities had to ration water to every several days, devastating the local economy that depends on tourism.
The Blueprint for a Water-Secure Future
Rationing water, like Mumbai’s 10% cut, is a temporary band-aid on a gaping wound. True urban water resilience requires changing how we view, harvest, and reuse water.
- Mandatory Grey-Water Recyling and Dual-Piping
Washing and bathing domestic water (i.e. grey-water) in cities is about 50–60% that is used for flushing toilets with clean and drinkable water. Every city must stop flushing with pure water and make dual-piping compulsory for all new residential and commercial high-rises.
- Decentralized Rainwater Harvesting (RWH)
Instead of letting rainfall run down concrete into polluted creeks, every building should be a catchment basin.
Solution: RWH structures should not be a mere line-item in building bylaws; concrete penalties must be imposed on housing societies that do not maintain functional recharge pits that will actually recharge local aquifers.
- Rejuvenate Urban Blue Infrastructure
Cities must revive their natural lakes, wetlands and floodplains. Desilting reservoir increases its holding capacity and clearing encroachments would mean that natural drainage channels feed into water bodies and not into urban flood.
- Intelligent Metering and Plugging Infrastructure Leaks
By digitizing water networks with IoT-enabled flow meters, municipal corporations can actively measure water pressure and immediately isolate and plug underground leaks without losing millions of gallons to ground.
Conclusion
Mumbai’s 10% water cut shows that water is a finite luxury. Bengaluru, Chennai and Shimla have shown that there is no geography—whether a coastal metropolis, a technology hub or a mountain getaway—that is immune to water bankruptcy.
Indian cities that want to weather climate uncertainties of the 21st century must transition from crisis mode to conservation mode. The age of water as an infinite, cheap commodity is over. Our cities’ survival depends on whether we see every drop of water as precious.
English (US) ·