GENERAL PROJECT

Allendale Wastewater Treatment Works upgrade

Starting in March 2024, we will be carrying out works at our sewage treatment works (STW) in Allendale. This work is essential and part of a £4.4 million investment project. It will ensure the STW continues to meet the needs of a growing population and that we continue to deliver a reliable and resilient wastewater service for our customers.

Start Date

March, 2024

Estimated End Date

March, 2025

Contractor

NW, Mott MacDonald Bentley

Further information

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Latest updates

By Julie Oakley

4 days ago

6 Photos

Good morning Everyone, Hope you are all looking forward to the Christmas Holidays, I thought I would provide you with one last update before we start our festive break, we have made good progress on Allendale Treatment works this month even though the weather has been against us, We have now completed 2 and 3 of the rotating biological contactor (RBC) shells, this is a biological fixed-film treatment process used in the secondary treatment of wastewater following primary treatment, we have also poured the 300mm base and we are now on with the backfilling of both tanks. The Hydrok Screen in now Installed these screens are designed to prevent sewage debris from passing over the weir, retaining it within the treatment works and we are on with building the rotating biological contactor 2 (RBC) Rotor. I hope we have not caused too much disruptions while the works continue but if you have any issues or concerns please leave a comment below or use the contact details provided and one of the team will be happy to help. If you require any assistance over the Christmas break please use the following contact number 0345 717 1100. On behalf of the project team, we would like to thank you for your continued patience this year and hope you have a lovely Christmas and a Happy New Year!

By Julie Oakley

12 November, 2024 at 2:41PM

Dear Resident. Just to make you aware from 8am Wednesday 13th November 2024 we are expecting a delivery of a 150T crane, this is approx. 3 meters wide, and we will need plenty of room to manoeuvre. As you are aware the entrance to the site is very limited. Due to this issue could you please refrain from parking at the entrance of the access road to site during this period. We would like to thank you for your patience and your continued support while the works are progressing. Please be assured that your water and wastewater services will not be interrupted while this work is in progress and, as with all work of this type, progress is subject to weather and site conditions. If you have any questions or queries please comment below or use the details provided to contact us and one of the team will be happy to help. Thank You Julie

By Julie Oakley

29 October, 2024 at 2:32PM

Good afternoon, All, I hope you are looking forward to Halloween and Bonfire night Welcome to your monthly update Despite the wet weather we have made some progress here on Allendale, we have completed the Rotating Biological Contactor 1 (RBC 1) which is used to remove organic matter from wastewater, this is the first of 3 that we are installing on this treatment works, we are also on installing the ducting which is on going and we have started the work for the slab cast for the SPEL tank which is used to manage the flow rates to prevent overloading, especially during heavy rain. I hope we have not caused any major disruptions while the works continue but if you have any queries or questions please leave a comment below or use the details provided to contact us and a member of the team will get back to you. Thank you Julie

By Julie Oakley

26 September, 2024 at 12:55PM

Good afternoon Everyone, we are excited to provide our latest update to the portal on the improvements we are making to the treatment works in Allendale. The steel work to the rotating biological contactor (RBC 1) is finished this is used to remove organic matter which is one of the first stages of the treatment system, and we are now filling in the soil around the structure, we are also still working on the steel part of the structure for the rotating biological contactor (RBC 2). We have started setting up molds to shape the concrete walls for the flume chamber which is a structure used to measure the flow rate of water. Once again we would like to thank you for all of your patience and continued support while we upgrade the treatments works. If you have any questions or you would like further information while the works continue please leave a comment below or use the contact details provided and one of the team will be happy to help. Thank you Julie

By Julie Oakley

29 August, 2024 at 4:45PM

Good afternoon All, where has our summer gone!!! Its been a few weeks since I posted a portal update on the progress of the works that are being carried out on Allendale treatment works, so I thought I would let you know how we are getting on. We have now poured the infill base along with the wall and the precast inlet works have been installed, this is where the new inlet screen which removes grit and solids before flows pass through the RBC, a RBC is a rotating biological contactor which is a fixed-film treatment process used in the secondary treatment of wastewater following primary treatment. You may have also seen a very large crane being delivered last week this was used to lift into position the new pre cast inlet works. We have also poured the concrete surround for the SPEL tank which is a large tank for the storage of the sewerage. We are making good progress with very little disruption so things are looking good. I would like to thank you for all for your continued co-operation and patience while the works progress. If you have any issues or questions please leave a comment below or use the details provided to contact us and we will be happy to help. thank you Julie

By Julie Oakley

31 July, 2024 at 8:40AM

Good morning, All, I hope you are all enjoying this lovely weather, I thought I would just let you know in advance that from 8am Tuesday 20th August 2024 we are expecting a delivery of a 200T crane, 76T Counterweight along with 2 deliveries of 20T precast concrete sections, this is 3 meters wide, and we will need plenty of room to manoeuvre. As you are aware the entrance to the site is very limited. Due to this issue could you please refrain from parking at the entrance of the access road to site during this period. We would like to thank you for your patience and your continued support while the works are progressing. If you would ike to get in touch with any questions or queries that you may have please feel free to contact us on the details provided or leave a comment below and one of the team will get back to you. Thanks Julie

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