Doha West Sewage Treatment Works

Wastewater treatment, 175,500 m3/day after Extension 3; fifth expansion to 280,000 m3/day contracted 2014 in Qatar.

Operational

The record

Country: Qatar
Location: Doha
Coordinates: 25.200, 51.420
Technology: Wastewater treatment
Capacity: 175,500 m3/day after Extension 3; fifth expansion to 280,000 m3/day contracted 2014
Capital cost: —
Stage: Operational
Owner or client: Ashghal (Public Works Authority)
Contractor: Degremont and Marubeni joint venture
Operator: Degremont (Suez Environnement), operation contract through 2020
Finance: —
Award or start year: 2011
Commissioned: —

Record last checked 2026-09-04.

2011-01
Extension 3 works start (2 January 2011), Degremont Marubeni JV, QR 1.29 billion, capacity 135,000 to 175,500 m3/day
2014-12
QR890 million design, build and operate contract for expansion to 280,000 m3/day awarded to Degremont and Marubeni
2016-11
Ashghal site visit reports fifth expansion to 280,000 m3/day under implementation

4 references

Every field in the record above is taken from the references below. A field that none of them confirms prints as a dash.

Ashghal, Doha West Sewage Treatment Works, Extension 3 (project page). ashghal.gov.qa.
Gulf Times, QR890mn expansion at West Doha treatment plant, 20 December 2014. gulf-times.com.
Ashghal, Ashghal Organise Site Visit to Doha West Sewage Treatment Works, 9 November 2016. ashghal.gov.qa.
MENA Water Review major projects register and PPP pipeline — compiled from procurer publications, development-bank project pages and trade reporting; each record names its source.