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Langat Sewerage Project is one of the “Sewerage Non River” projects under Greater Kuala Lumpur.  Anchored under the Ministry of Environment and Water. Fully implemented by Jabatan Perkhidmatan Pembetungan (JPP), the high-impact project involves building a centralized sewage treatment plant with 920,000 P.E equivalent to 207,000m3/day and laying sewage piping network of approximately 105km in total.

This project will cover the catchment area of 60.9km2 stretching from Cheras Batu 11 to Kajang. The 105km sewage pipe network will connect 1174 manholes that integrates 164 small inefficient multipoint sewage treatment plants in various housing area such as Cheras Batu 11, Desa Baiduri, Cheras Jaya, Kajang 1 & Kajang 3, including of Kajang Prison and link it directly into one centralized location that will immediately reduce multipoint of pollutant discharge into the Langat River.

Once completed, sewage within the Langat Catchment will be treated to Category 1 Standard A as per stipulated in the Environmental Quality Act (Sewerage) 2009.


Innovative Plant, equipped with Green Technologies and Public Facilities

The innovative and modern facility will be equipped with green technology initiatives and public facilities which can accommodate sewage inflow of 207,000 m3/day or 920,000 population equivalent (PE), covering a total of 60.9 sq km catchment area starting from Cheras Batu 11 to Kajang.



Sewage Treatment Process

Langat Centralised Sewage Treatment Plant will contribute to the cleaning of Langat River by utilizing the Deep Aeration method with Step-Feed Multi Stage De-Nitrification Process


Public Amenities

Public Amenities

Centralized Sewage Treatment Plant provide lots of Public Amenities for the public. It consist of one (1) Community hall, Two (2) futsal Courts, Sixteen (16) Badminton Courts, Two (2) Sepak Takraw Courts, and Two (2) Basketball Courts.


Green Technology

Green Technology

Environmental technology, green technology or clean technology is the application of one or more of environmental science, green chemistry, environmental monitoring and electronic devices to monitor, model and conserve the natural environment and resources, and to curb the negative impacts of human involvement.


Sewerage Network Information

Project Area Estimated 60.9 km2
Sewage Pipe Diameters 225 mm to 2100 mm diameter
Proposed Sewerage Networks Estimated 105 km
Number of Pump Station 11
Depth of Pipe Depends on the area, max: 25 m
Distance of Manholes (MH) i. 225 mm - 300 mm á´“: 80 m
ii. 450 mm - 600 mm á´“: 120 m
iii. 750 mm - 900 mm á´“: 200 m
iv. > 1050 mm á´“: 300 m above
Construction Method Pipe Jacking

An Extensive Traffic & Environment
Management Programme

LANGAT SEWERAGE PROJECT is aware that the construction of the SEWERAGE NETWORK may result in some unintended consequences such as traffic disruption and environmental impacts like noise pollution.

An extensive traffic and environment management programme has been put in place to ensure that the construction will only cause minimal amount of disruption.

A number of safeguards will be put in place near the construction site to ensure the safety of site workers and the general public, as well as to minimise inconvenience during construction. At some of these locations, traffic may be diverted or the roads being closed to ensure general safety in the area.


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Office Address

Visit our office and meet our staff members

Official Address
Ground floor, Wisma Budiman,
Persiaran Raja Chulan, 50200,
Kuala Lumpur

Correspondence Address
Lot 360 Pejabat Tapak, Jalan Cheras Batu 13, 
Kg Simpang Balak, 43000 Kajang,
Selangor Darul Ehsan


Public Information Centre
Kindly note that the Public Information Centre is open to public only through appointment. Please call 1300-88-7572 or email us at plsbcomms@mmc.com.my

Operation Hours:
Monday – Saturday (8 am – 5pm)
*Closed on Public Holiday

Location Map

Our Location

Career With Us


Attractive remuneration packages and fringe benefits await successful candidates. Interested applicants are invited to submit their updated resume, complete with comprehensive details of experience and qualifications, current and expected salary, recent passport-sized photo via email to:


OR sent to

Lot 360 Pejabat Tapak, Jalan Cheras Batu 13,
Kg Simpang Balak, 43000 Kajang,
Selangor Darul Ehsan