DCWW2115 Service Reservoir Cleaning, Maintenance and Refurbishment CoP

Welsh Water is establishing a framework agreement for routine cleaning, maintenance and minor refurbishment of approximately 828 potable water storage tanks across their operational area. Work must comply with Drinking Water Inspectorate regulations and the buyer's internal PNL 810 standard.

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Closes2 November 2026, 23:59
Published6 October 2026
Value£26m
BuyerDwr Cymru Cyfyngedig
Whereacross Welsh Water's operational area
CategoryCleaning, waste & environmental, Repair & maintenance
RegionWales

You'll want to look if you specialise in potable water tank cleaning and maintenance and can work with both steel and concrete structures, including underground tanks and water towers, across Wales

You'll need

Compliance with Drinking Water Inspectorate (DWI) requirements
Knowledge of PNL 810 standard for drain downs and cleaning of service reservoirs
Experience with below ground and above ground steel or concrete tanks

Might not suit a small firm

the contract itself is a large one