Yorkshire Water is continuing to progess work on multi-million pound projects during the first six months of AMP8 – including the completion of a major upgrade at a North Yorkshire wastewater treatment site.

Work is currently underway with a £3.8 million project at the company’s Sinderby wastewater treatment site to reduce discharges from the storm overflow, improving the water quality in the river Swale.
The project will triple the site's treatment capacity - from 3.5 litres per second to 10.5 litres per second - by replacing or upgrading treatment units on site.
Increasing the wastewater treatment capacity will enable the frequency and duration of storm overflow discharges into the receiving watercourse to be reduced. The discharges only occur when the combined sewer network is at full capacity to protect homes and businesses from flooding.
Farina Iltaf, project manager at Yorkshire Water, said:
“Our project partners, Mott MacDonald Bentley (MMB), are already underway with our Sinderby project, and making brilliant progress – we're on track to finish in spring 2026 – and the watercourse will start to see the benefits immediately.”
The project will also see 1.5km of pipework laid in fields adjoining the wastewater treatment works to move the storm overflow outfall further downstream. When complete, 2.5km of the watercourse will benefit.
Over the next five years, Yorkshire Water will be investing £1.5 billion in reducing the frequency and duration of discharges from storm overflows across the region - £378 million of which will be invested in North Yorkshire.
Next week will also see Yorkshire Water begin a £1.6 million project to replace over 4.9km of water mains in Levisham, in the North York Moors.
Replacing the mains will improve reliability of drinking water supply, reduce leakage and prevent water main bursts in the area. The main has burst 12 times in the last three years
As part of the company’s clean water AMP8 investment, North Yorkshire is seeing a significant upgrade to its pipework. In the first year of Yorkshire Water’s mains replacement project over 90km of pipes will be replaced in this part of the county, with more already planned for the following years.
Contract partners M Group and North East Pipelines will be installing the new mains across Levisham Moor and are expected to take around seven months to complete the work.
Elsewhere in North Yorkshire, multiple mains replacement schemes are already being delivered, including a £1.8 million scheme between Well and Bedale and a £1.5 million scheme in Brompton-on-Swale.
The projects forms part of Yorkshire Water’s largest ever environmental investment between 2025 and 2030, totalling £8.3 billion.
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Hear how United Utilities is accelerating its investment to reduce spills from storm overflows across the Northwest.