Published date: 15 May 2025

Open opportunity - This means that the contract is currently active, and the buying department is looking for potential suppliers to fulfil the contract.


Closing: 28 May 2025, 5:02pm

Contract summary

Industry

  • Water-treatment chemicals - 24962000

  • Water filtration apparatus - 42912310

Location of contract

East of England, Any region

Value of contract

£500,000 to £1,000,000

Procurement reference

C4N94105640

Published date

15 May 2025

Closing date

28 May 2025

Closing time

5:02pm

Contract start date

30 October 2025

Contract end date

29 April 2026

Contract type

Supply contract

Contract is suitable for SMEs?

Yes

Contract is suitable for VCSEs?

No

Description

This expression of interest (EOI) serves to inform the supply chain about the upcoming procurement for the supply of Mechanical & Electrical (M&E) Equipment for the Water Management Zones (WMZ) at Sizewell C site.

This equipment supply will be desilting type units to control the suspended solid discharge from the outfalls. These units shall be supplied with the pumps and ancillary equipment necessary to lift the water from the discharge network to the treatment plant and for integrating the pump with the control system. These treatment plants will be primarily used to treat surface runoff water collected via the site drainage network, but also includes emergency potable water discharges and some groundwater dewatering that cannot be practically treated at the main groundwater treatment plant.

This table shows the space requirements, power requirements and source and flow rates for each WMZ treatment plant:

WMZ / Treatment plant footprint / Treatment flow rate (l/s (m3/hr)) / Power requirement (kW) / Power source


WMZ 1 12x6m 23.7 (85.3) 15-20 Generator
WMZ 2 12x6m 27.6 (99.4) 15-20 Network
WMZ 3 16x6m 40.7 (147) 35-40 Network
WMZ 5 12x6m 31.2 (112) 20-25 Generator
WMZ 7 25x7.5m 62.0 (223) 35-40 Generator
TMO 25x25m 200 (720) TBC Generator

The treatment plant is only required to manage total suspended solids (TSS); hydrocarbons are assumed to be trapped in the WMZ and will be removed using booms deployed by client. The concentrations for TSS are as follows:

• Outfall to the SSSI 60mg/l
• Outfall to the sea 250mg/l

pH correction is not included at each WMZ but provision of it might be required on some plants.

More information

Links

How to apply

Follow the instructions given in the description or the more information section.

About the buyer

Contact name

Christopher Reeves

Address

90 Whitfield Street
London
W1T4EZ
UK

Telephone

00000000000

Email

christopher.reeves@sizewellc.com