TNPSC Thervupettagam

Rainwater Harvesting Guidelines

November 6 , 2026 15 hrs 0 min 48 0
  • The Municipal Administration and Water Supply (MAWS) Department issued guidelines for the construction, maintenance and rejuvenation of Rainwater Harvesting (RWH) structures across Tamil Nadu.
  • The guidelines were prepared based on proposals from the Tamil Nadu Water Supply and Drainage Board and an expert committee.
  • District Collectors and local bodies must coordinate with government agencies to implement the measures across the State.
  • Rainwater harvesting has been mandatory in Tamil Nadu since 2002.
  • The guidelines specify rooftop rainwater harvesting, open wells and recharge wells based on local soil conditions and building types.
  • Check dams and percolation ponds must be desilted to improve groundwater recharge.

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