chandigarh on the one hand where the posh northern sectors are using four to five times more water than the citys average consumption which itself is 102 litres above the national average there is one sector which is consuming water even below the national average of 150 litres per person per day the indepth study of the mcs engineering wing shows that the average water consumption of sector 56 situated in the far southern belt of the city is 138 litres per person per day sector 56 is quite a thickly populated sector as compared to the northern sectors of the city besides sector 56 sectors 30 29 and 45 have also been found using the least amount of potable water in the city at 175 180 and 184 litres per person per day respectively in the entire year the water consumption in sector 56 according to a bar chart never rose above 170 litres in any month in sectors 30 29 and 45 the highest consumption recorded was 211 litres which is still below the city average of 252 litres since all these abovementioned sectors have mainly small houses as compared to houses in the northern sectors the water usage is well below the city average besides small houses a number of floors in the houses are occupied by different families most houses in these sectors have neither a big garden nor any plants where potable water can be used said an official of the mcs engineering department the southern sectors incidentally are the worsthit areas in summer in terms of proper supply of potable water in the peak summer months water does not reach even the first floor of these houses though housing societies have their own tanks it has been seen in the past that these tanks itself do not have enough water in may and june anil kumar home secretarycumsecretary local bodies of the ut administration said i think having different slabs of water tariff is necessary for a fair distribution of the water in the city