About 80% of the work on the 1.1 MLD Sewage Treatment Plant (STP) set up at Edakochi for Division 16 has been completed. The project, aimed at scientific treatment of sewage originating from around 2,000 households in the division, is expected to be completed by August.
The decentralized sewerage system is implemented under the sewage treatment plant (STP) project of the Atal Mission for Rejuvenation and Urban Transformation (AMRUT). The unconventional decentralized sewerage system is being implemented at a cost of ₹18.6 crore. The total length of the laid sewage pipeline within the division is 17.9 km.
“Out of this, about 14 km of the network has already been completed. A total of 900 shafts are being built under the project. We plan to commission them by August, but tidal flooding posed problems. Due to this, the work could not proceed at the intended pace,” the source said.
The system includes a collection network at household level, a transport system and a treatment plant where the wastewater will be treated. Wastewater from households first passes through manhole chambers installed in houses before reaching roadside manhole chambers. From there, it will flow through a pipeline network that will have shafts at intervals of around 40 meters. These shafts will facilitate inspection and maintenance in case of problems in the network, the source said.
The STP is being set up near Ambedkar Colony in Edakochi on land owned by the Kochi Corporation. According to sources, it is currently the only decentralized sewerage system implemented within the company limits and is considered key to addressing sewage contamination in waterways. “Septage often overflows from septic tanks into waterways, causing pollution. A decentralized septic tank treatment system can help solve this problem and prevent contamination of water bodies,” the source added.
Published – 13 May 2026 0:42 IST
