Need details of the water usage standards for implementing efficient usage in a institute like IIT,Kharagpur

Sir , with your kind permission i would like to tell you that i am a student of the indian instute of technology kharagpur , here we are doing the water audit for the institute so i would like to have some standard data and sources information regarding the usage of water in hostels and staf quarters (such as per person consumption of water and treatment standards) so that we can do some study regarding efficient usage of water in our institute and some similar institutes .

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