The online water audit was not an exact physical metric measurement of how water is being wasted or is it being conserved but an activity designed to make each individual aware of HOW water gets wasted unknowingly personally and at home and office. Easy-to-understand water audit calculators were made available online.

For the generation of closest-to-authentic data, EG members spent several hours on a working day observing water usage in the toilets, pantry, drinking water, cleaning the office, watering the plants and cooling the office. Similarly at home along with the family members they observed water usage in bathroom, toilets, kitchen, washing clothes, watering plants and cleaning the house before getting the HSBC employees to do it.