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1. Dear Asha, The best thing is

Dear Asha,

The best thing is to construct the house on piles elevated such that the floor is 0.5 m above maximum flood level ever known and the floor itself being the capping beam of the piles. The toilet sewage is to go through a septic tank followed by upflow filter and this also resting on piles. This is also a costlier method. Otherwise, fill the building area with boulders of stone and a retaining stone wall around and build the house.


Dr. S. Sundaramoorthy
Technical Advisor (ex-Engineering Director of Chennai Metropolitan Water Supply and Sewerage Board)
Creative Environmental Consultants
Chennai, Madras


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