This is the final report on the sewerage master plan for Delhi 2031 (SMP 2031) released by Delhi Jal Board in collaboration with AECOM-WAPCOS team. Says that SMP 2031 shall ensure extension of sewerage facilities in the unplanned areas by integrating with existing network and sewerage infrastructure.

As the population of Delhi, India, has rapidly increased from 4 million people in 1971 to around 18 million people today, making it the world’s second most populous city, sewage infrastructure has not kept pace, with major threats resulting to the city’s sanitation, river water quality, and overall health of inhabitants. Approximately 55 percent of the population (9.9 million people) in urban Delhi has access to a centralized sewerage system. In an effort to bring clean water to the under-served communities by 2031, Delhi Jal Board has partnered with AECOM to develop an integrated and sustainable master plan to improve sanitation conditions and enhance the water quality in River Yamuna, the largest tributary river of the Ganges in northern India. This project covers the entire 1,500-kilometer National Capital Territory of Delhi and is divided broadly into two phases — a sewered area and an un-sewered area. AECOM ensures that comprehensive, technically and financially viable plans – capital expenditure (CAPEX) and operating expense (OPEX) – are in place for the implementation of both phases.