The revival of the Chandrawal plant marks a turning point for the city's water infrastructure. For more than 10 years, the project faced a "comedy of errors," including policy indecision, repeated tender cancellations, and administrative lapses. Its completion comes at a time when Delhi’s water deficit has widened, with demand reaching 1,250 MGD against a limited supply of approximately 1,000 MGD.

Key Highlights of the Chandrawal Project:

• Ammonia Resistance: Unlike the older Wazirabad and Chandrawal units that often shut down when ammonia levels exceed 1 ppm, the new 105 MGD plant is equipped with advanced technology to treat raw water even when ammonia levels are significantly higher.

• Network Overhaul: Beyond the plant, ₹1,331 crore is being spent to replace aging pipelines across West, East, and Central Chandrawal zones. This effort aims to reduce "non-revenue water" (leakages and theft) from current levels of 35-45% to below 15%.

• Uninterrupted Supply: Once operational later this year, the plant is expected to ensure uniform water pressure and consistent supply to nine assembly constituencies, including the high-profile Civil Lines and NDMC areas.

The Broader Infrastructure Crisis (2026 Context):

While the Chandrawal plant offers local relief, Delhi's long-term security remains tied to major inter-state dam projects. A recent CAG report highlighted that while the Delhi government has already paid ₹231 crore for the Renukaji, Lakhwar, and Kishau dams, work on these "national importance" projects has barely begun nearly 30 years after the initial MoUs.

• Renukaji Dam (HP): Expected to meet 40% of Delhi’s needs; currently in the tendering stage with a target completion of 2032.

• Lakhwar Dam (UK): Only 12.6% complete; target date 2031.

• Kishau Dam (UK/HP): Still in the agreement phase; target date 2033.

Recent Disruptions (Jan-Feb 2026):

The urgency of the Chandrawal commissioning was underscored by a severe water crisis in late January 2026. High ammonia loads (crossing 3 ppm) combined with a maintenance shutdown of the Munak Canal forced the closure of multiple plants, leaving thousands of households reliant on expensive water tankers and cans.

What it means for Delhiites:

The 2026 commissioning of the new Chandrawal plant is the first major capacity addition in years. While it won't solve the city's dependency on neighboring states (Haryana/UP), it provides the technical resilience needed to keep the taps running during winter ammonia spikes that have historically crippled the city's older treatment facilities.