Silt accumulation at Pillur Dam and seepage at Siruvani threaten Coimbatore’s drinking water supply
Silt accumulation at the Pillur Dam and seepage at the Siruvani Reservoir are threatening Coimbatore's drinking water supply. The Corporation Commissioner has highlighted the importance of these reservoirs for the city's water network and the need for immediate intervention. Efforts are underway to address these issues, but approvals and further actions are still pending.
- ▪Over 50% of the Pillur Dam's storage capacity has been lost to silt accumulation.
- ▪Seepage at the Siruvani Reservoir results in a daily loss of nearly 10 MLD of water during the monsoon season.
- ▪The Corporation is pushing for desilting and seepage rectification works, while awaiting state government approval for repairs.
- ▪Coimbatore city draws around 277 MLD from Pillur-based schemes, highlighting the importance of these water sources.
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More than 50% of the storage capacity of the 100-ft Pillur Dam has been lost to silt accumulation over the decades, while seepage at the Siruvani Reservoir continues to result in water loss, posing a challenge to Coimbatore’s drinking water supply.Corporation Commissioner M. Sivaguru Prabakaran said the Pillur and Siruvani schemes form the backbone of Coimbatore’s drinking water network and any reduction in storage or drawal capacity would directly affect water distribution in the city.Around 754 MLD of water is drawn from River Bhavani through 14 drinking water schemes catering to Coimbatore and Tiruppur districts. Of this, Coimbatore city alone draws around 277 MLD through three Pillur-based drinking water schemes located in the upstream and downstream stretches of the dam.Mr.
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