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Jersey Chamber of Commerce

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Category: States of Jersey

Liquid Waste Strategy Outlines Significant Sewerage System Upgrade Plans

May 03, 2023

• Plans to upgrade Jersey’s sewerage network released by Infrastructure Minister. 

• Existing system is reaching capacity in many areas.

• Liquid Waste Strategy earmarks specific parts of the Island for improvements.

A new bridging Liquid Waste Strategy (2023-26) has been published by the Minister for Infrastructure. It describes potential projects to upgrade the existing sewerage network to support population growth and the additional homes indicated in the bridging Island Plan.

The previous Liquid Waste Strategy was released in 2013 and led to the construction of the new Sewage Treatment Works at Bellozanne, which is now nearing completion. It will have the additional capacity required for future population growth, however the total flow that can reach it will be constrained by the wider network’s capacity.

Much of the existing network was built in the 1950s, or earlier, and was designed for a population of half the current number of residents. The network, as a whole, is already at its limits in a number of areas and therefore needs to be reinforced and upgraded before the flow and load from new homes can be accommodated. 

The new 220-page bridging Liquid Waste Strategy considers the immediate needs for 2023-2026, and then beyond this in the medium-term to 2035. It identifies schemes to upgrade the infrastructure in key locations including First Tower, Le Dicq, Maufant, West Park, Bonne Nuit, St Brelade, Greve de Lecq, Maupertuis, St Peter, Beaumont, Grouville and Le Hocq.

The Minister for Infrastructure, Deputy Tom Binet, said: “We know that under the bridging Island Plan, many thousands of new homes will be built in Jersey over the next few years, and we need to ensure the system can deal with that additional demand.

“The network that takes liquid waste away from our homes is often taken for granted and only noticed when something goes wrong. The Island has been well served by the current sewerage infrastructure, but it is ageing, and we now need a significant investment for the future of the Island. 

“I am discussing, with the Treasury Minister, the best way of financing this work to prevent major failures in the network, and support our wider aims for housing, and this will need to be considered as part of the upcoming Government Plan process.”

Government of Jersey News Release

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