City Sewer System

Brihanmumbai territory is divided in seven sewer zones viz. Colaba, Worli, Bandra, Versova, Malad, Bhandup and Ghatkopar, for the sake of collection, treatment and disposal of the sewage. The treated sewage from Colaba, Worli and Bandra Zones is disposed into the Arabian Sea through marine outfalls. The Treated sewage from Versova zones is discharged into the Malad creek, while the treated sewage from Bhandup and Ghatkopar zones discharge into the Thane creek, through waste water treatment facilities such as aerated lagoons. The underground sewerage system discharges at various lengths into the sea: The Love Grove treatments works has an outfall 3 Kms long, Colaba-1.1 Kms, Bandra- 3 Kms, Versova 2.9 Kms, Malad- 2.2 Kms, Ghatkopar 0.9 Kms and Bhandup 1.15 Kms.