During the 31st Southern Zonal Council meeting, Puducherry LG K. Kailashnathan called for urgent cooperation from the Centre and Tamil Nadu to implement an integrated surface water resource system to combat severe groundwater issues.
- Puducherry faces critical groundwater issues with TDS levels exceeding 3,000 ppm.
- LG K. Kailashnathan proposed linking Sankarabarani and South Pennaiyar rivers to the Godavari link.
- A demand was made for a dedicated pipeline from Sathanur Dam to Puducherry.
- The UT is seeking technical and financial aid for Cauvery water storage in Karaikal.
At the 31st meeting of the Southern Zonal Council held in Mamallapuram, Tamil Nadu, Puducherry Lieutenant Governor K. Kailashnathan made a strategic appeal to the Central government and the neighboring state of Tamil Nadu. Chaired by Union Home Minister Amit Shah, the meeting served as a platform for the LG to outline a comprehensive vision for an 'Integrated Surface Water Resource System' to ensure a reliable supply of potable water to the Union Territory.
The Lieutenant Governor highlighted the dire state of Puducherry's water resources, noting that the UT lacks its own surface water and relies heavily on groundwater. This dependence has led to alarming quality issues, with TDS levels in several areas surpassing 3,000 ppm, alongside unsustainable levels of iron and nitrates. To mitigate this, the LG proposed including Puducherry in the National Water Development Agency's (NWDA) project plans, specifically by linking the Sankarabarani and South Pennaiyar rivers with the proposed Godavari link.
Why This Matters
BozokMedia analysis shows that as climate change intensifies, water scarcity in coastal UTs like Puducherry becomes a significant socio-economic risk. The ability to transition from groundwater to managed surface water is not just an infrastructure goal but a necessity for public health and regional stability. Success depends entirely on inter-state cooperation and federal funding.
Securing a sustainable water future for Puducherry requires a multi-state collaborative approach and massive infrastructure investment.
Delving into historical context, the LG noted that water sharing agreements with Tamil Nadu date back to 1910, with subsequent renewals in 1969, 1976, and 2007. However, current regulations only allow regulated water release from the Sathanur Dam via the Bangaru Canal for two months during the monsoon. To address this, the administration is pushing for a dedicated pipeline and the formation of a Joint Working Group consisting of senior officials from the Government of India, Tamil Nadu, and Puducherry.
Furthermore, the Karaikal region's specific needs were addressed. As the terminal point of the Cauvery basin, Karaikal is entitled to 7 TMC of Cauvery water annually but currently receives it primarily during the rainy season. The Puducherry government, with technical assistance from NIT Karaikal, is developing a Detailed Project Report (DPR) to store excess monsoon water.
| Feature | Current Status | Proposed Plan |
|---|---|---|
| Primary Water Source | Groundwater (High TDS) | Integrated Surface Water System |
| Water Infrastructure | Limited Monsoon Release | Dedicated Sathanur Pipeline |
| River Integration | None | Sankarabarani-Pennaiyar-Godavari Link |
Frequently Asked Questions
1. Why is Puducherry's groundwater considered unsafe?
The groundwater contains extremely high levels of TDS (over 3,000 ppm), iron, and nitrates, making it unsuitable for long-term consumption.
2. What is the proposed solution for the Karaikal region?
The government plans to build storage facilities for excess Cauvery water received during the monsoon, supported by a DPR from NIT Karaikal.
