Puzhal Lake, situated in the northern outskirts of Chennai, supplies drinking water to over 1.5 million residents. Rapid urban sprawl, illegal waste dumping, and open defecation have placed the reservoir under severe threat over the past decade.

CPI’s Warning and Demand

CPI state secretary M. Veerapandian inspected the lake on Monday and called on the state government to install a comprehensive fence. He said, “Seeing the lake turn into a dumping ground and a site for open defecation is disheartening; it must be secured and protected.” His statement reflects growing public concern over water security.

Historical Context and Current State

Constructed in the 19th century under British rule, Puzhal Lake was originally designed to stabilize Chennai’s water supply. However, post‑1990 industrial and residential expansion degraded water quality. In 2020, climate‑induced fluctuations in water levels further strained the reservoir.

Environmental and Social Impact

As contamination rises, not only is the safety of drinking water compromised, but the lake’s ecosystem—including fish stocks and bird habitats—is also at risk. Moreover, water scarcity amplifies public health concerns, increasing the likelihood of water‑borne diseases.

Path Forward

Experts argue that fencing is only a first step; continuous monitoring, modernized waste‑management systems, and community awareness campaigns are essential. Without swift action, Puzhal Lake could become a chronic liability for Chennai’s water security.