£800,000 reservoir project will protect water supplies in south Northumberland
The quality and resilience of water supplies to homes on the South Northumberland coast have been boosted by an £800,000 project at a key service reservior.
Northumbrian Water says it has successfully completed work at Northumberland’s Plessey Reservoir – an £838,000 investment in internal refurbishment and upgrade for the reservoir’s roof membrane.


The firm say the project at the site – an enclosed tank that holds treated water ready for use in customers’ homes - is a key step in ensuring long-term resilience of the water system.
The company says that, by proactively maintaining and protecting assets like Plessey Reservoir, it can extend their operational life, minimise repair costs and ensure the reservoir continues to serve communities reliably for generations to come.
Gary Cassells, project manager at Northumbrian Water, said: "We are proud to have delivered this important project efficiently and effectively, working with or framework partner, Mackenzie Construction Ltd.
"The internal refurbishment and membrane improvements will help safeguard the reservoir’s future, ensuring it continues to serve our customers reliably for many years to come and an example of our dedication to investing in resilient infrastructure that meets the needs of our communities."
Northumbrian Water supplies 2.7 million customers with water and sewer services in the North East, covering areas including Northumberland, Tyneside, Wearside, County Durham and Tesside.
The company is due to invest some £4.5bn in the region’s water supply network across the region between 2025 and 2030 - the largest capital investment programme in the last 30 years.