The BMC will upgrade it's existing sewage treatment facilities like the sewage pumping stations, sewer improvement works and an improvement in the sewage collection and conveyance system.
The project envisages the coverage of 80 per cent of the city under a sewerage network, up from the existing 60 per cent and the treatment and disposal of the sewerage before it is released into the sea. This will ensure that the quality of sea water will show a marked improvement and the environmental impact of the sewage disposal will be reduced.
The city currently discharges 2,600 MLD of sewage and of it around 1,500 MLD is treated under previous projects.
The BMC standing committee on Wednesday approved a proposal to appoint consultants for formulated detailed designs and project management of the Rs 5,570 crore Mumbai Sewage Disposal Project (MSDP- Stage II), which is further divided into five components.
The standing committee has sanctioned Rs 145.76 crore towards payment of fees to the four consultants, supervision cost and taxes to prepare the designs and reports for the second and third components, which the BMC aims to complete by the year 2011, before undertaking the next components.
The two components will also see the set up of a 3.7 kilometre long marine outfall at Ernagal near Madh Island to discharge sewage from the Western suburbs that was earlier discharged in the Versova and Malad creeks.
The first component of the MSDP, worth Rs 502.41 crore has already been sanctioned funds by the central and state governments under the ambitious Jawaharlal Nehru National Urban Renewal Mission (JNNURM) and work orders worth Rs 70 crore have been issued.
Said Manukumar Srivastava, Additional Municipal Commissioner (Projects): "We are planning to seek funding for the funding of the second and third components of the project after receiving the detailed designs and plans from the consultants. The first such proposal will be sent in March 2007."
These two components, worth a total at 1393.59 crore, aim at refurbishing and expanding pumping stations and strengthening treatment facilities, laying new sewers, setting up of marine outfalls and new pumping stations.
Added Srivastava: "We also aim to cover some unsewered areas in the city."
The BMC will complete these by the year 2011, before taking up the next phases of the MSDP, which will be completed by the year 2025.
The MDSP also consists of a parallel slum sanitation programme (SSP), which comprises of construction of toilets in the slum areas.
The BMC has earlier integrated water supply and sewerage projects namely Bombay I, II and II projects from 1974 to 1996.
Later the Bombay Sewage Disposal Project (BSDP), which was later renamed as MDSP, was initiated from 1996 to complete the pending works.