Greenery is the basic function to make amends to make the earth more livable and it's the only source and alternative to make the earth more adaptive and to protect the nature from its impeccable condition.
To achieve this we need more natural resource like water and clean energy.
We need Accountability in the efficient usage and result oriented program performance.Auditing is done on scientific principles and methodology that measures the effective and efficiency of the system this enables the operator and maintenance team to change or adopt new strategy to come the situation effectively over.
Water Auditing clearly provides all the relevant details where is the problem to be addressed and also provides lead how to address it more effectively, initially it will have a cost involved but looking holistically we can visualize massive saving in terms of water and in terms of expansion of green area and other aspects. 
Auditing is not only checking the functioning of the system, it enables us how we can use efficiently use the water considered waste or dumped in soak away.