The water level fell from 16.46 metres below ground level (mbgl) in 2005 to 19.44 mbgl in 2010. The NGT said the concerned agencies, especially Ghaziabad Development Authority (GDA) and Ghaziabad Nagar Nigam, have failed to install rainwater harvesting systems at public places, parks and buildings which consume the lateral soiled areas, which can act as areas of groundwater recharge and lead to wastage of precious rainwater up to 90 per cent due to increased surface run-off into stormwater drains, thus, further aggravating the crisis of water scarcity.