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Donegan Civil Engineering

Weaverham WwTW

Green Asset Lab Enabling Works

By: Valentine Donegan

Published: October 22, 2025

Weaverham WWTW

Client: Costain / United Utilities

V J Donegan & Co Ltd received an enquiry from Costain to design and build for a 25m x 25m hardstanding area to support 8 no. Reactive Media Tanks along with 2 no. CSO Wetland tanks.

These tanks were to be supplied by pumps at three separate locations around the WwTW, which would be controlled within a welfare unit next to the slab.

This work was required to provide United Utilities with a temporary Green Asset Lab that could be used for future testing of sewerage running through the WwTW.

Scope of Works

Construct a reinforced concrete slab 25.00m x 25.00m
Construct hardstanding area to the side of the slab with 2 no. welfare units connected to mains supply and sewer.
Install ducting from slab to three pump locations situated around the WwTW for power cabling and telemetry.
Construct crane pad and provide cranage for the installation of CSO storage tanks on the concrete slab.
Installation of pumps at three locations, a mains distribution board on the concrete slab and a control panel within the welfare unit to control supply to the tanks.

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