Volume of sewage water generated and discharged in the city. MLD = Million litres per day.
Total treatment capacity of the 7 STPs in the city.
Volume of sewage that is treated in Sewage Treatment Plants (STPs) each day. This is because the existing sewer pipeline network does not have capacity to carry more sewage than this. As a result, remaining sewage gets mixed in other water bodies.
Number of places in the city that environmentalists have identified where sewage enters lakes directly as there is no sewage treatment plant in those areas. Upper and Lower Lake, Motia Lake, Siddique Hasan Lake, Munshi Hussain Khan Lake are main water bodies that receive sewage, which remains mostly untreated due to inefficient plants.
Volume of sewage that enters the Upper Lake. Also known as Bhopal Taal, a Ramsar Convention site and constructed during the rule of Raja Bhoj (1010–1055 CE), the lake is the lifeline of the city as it supplies close to 40% of its drinking water.