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Dubai Municipality is preparing to tender the main construction package for the Warsan sewage treatment plant (STP) by the end of the year, according to sources close to the project.

The scheme is linked to the deep sewerage tunnels infrastructure programme being implemented by the municipality’s sewerage and recycled water projects department.

As MEED understands, the Warsan STP had previously been expected to be procured as a public-private partnership (PPP) scheme.

However, sources confirmed that the main construction package will now be procured as an engineering, procurement and construction (EPC) contract.

The project involves the construction of a sewage treatment plant with a capacity of about 175,000 cubic metres a day (cm/d), including treatment units, sludge handling systems and associated infrastructure.

The plant, estimated to cost about $326m, will be developed at the existing Warsan complex, where the municipality is also progressing separate expansion and rehabilitation packages.

These include Warsan STP Phase 1 (DS-355/1), which involves sewerage and stormwater network upgrades, and Stage 2 of the Al-Warsan sewage treatment plant (DS-203/2), comprising new treatment units

Kuwait-headquartered Mohammed Abdulmohsin Al-Kharafi & Sons is the main EPC contractor for both projects.

Separately, the municipality is also progressing the expansion and upgrade of the first and second phases of the Jebel Ali STP.

The upgraded facility will be capable of treating an additional sewage flow of 100,000 cm/d.

Earlier this month, contractors were invited to prequalify for the contract.

The bid submission deadline is 2 April.