Crookhall Sewage Treatment Works – WINEP Phosphorous Removal

As part of the Water Industry National Environmental Programme (WINEP), we will be installing a chemical dosing plant (ferric sulphate and sodium hydroxide) to enable the site to meet the forthcoming phosphorous discharge consent of 0.9 mg/l, which will apply from April 2025. The improvement works will cost around £1.5m, and is one of 27 sites within the NWG region to receive this upgrade. Phosphorous is a nutrient and can cause algae to grow in watercourses, reducing biodiversity and river water quality. Our works will help to improve the quality of the downstream watercourses.

Update by Sarah Jayne Parvin

Afternoon All,

I'm Sarah Parvin the Customer Liaison Officer for Mott MacDonald Bentley, Matthew Carney is our Site Agent looking after this job.

We are part of a great team who started work this week on behalf of Northumbrian Water at Crookhall STW. I have included a copy of the letter you will have received early February, informing you of the work.

We will provide you with regular updates throughout, if in the meantime, you have any questions please don’t hesitate to ask.

On behalf of the Project Team, we would like to thank you all for your patience and support during our essential work.


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