Electrical Installations for Major Upgrades at Slowhill Copse Water Treatment Works
About The Project
At Slowhill Copse Water Treatment Works, we were brought in by GTb (the Galliford Try and Binnies joint venture) to deliver extensive electrical works as part of a major site upgrade.
The project’s core drivers were to increase stormwater storage capacity and increase full flow to treatment (FFT), ensuring the site could meet future demand and environmental obligations. With tight regulatory deadlines from the Environment Agency, timing was critical — and flexibility was essential.
What We Delivered
We’ve been responsible for a wide scope of electrical work, including:
- Control for temporary pumping arrangements to meet EA reg dates
- Electrical installation of a new Low Voltage Assembly (LVA)
- Electrical installation of a new Final Settlement Tank (FST)
- Power and control cabling for new Storm Distribution Chamber actuated valves
- Power and control cabling for new automated Storm Tank 1-5 actuated valves
- Modifications to the existing fibre optic network
Each of these upgrades supports better site control, efficiency, and resilience during storm conditions.
How We Helped
The project faced an early hurdle: some of the permanent equipment wasn’t ready in time — but the site still had to meet its Environment Agency (EA) date for increased storm capacity and FFT.
We were brought in to help install temporary control measures, allowing the site to meet its regulatory obligations while waiting for the final equipment.
By working closely with GTb, we quickly delivered the electrical systems and controls needed to keep things moving.
Outcome
This has been one of the more complex packages we’ve delivered recently, with multiple interconnected systems, compliance targets, and a hard deadline — all while the site remained operational.
Our ability to stay agile, problem-solve in real-time, and coordinate across multiple workstreams has helped keep the project on track and the site in regulatory compliance.
We worked with the Principle Contractor to prioritise work areas – helping the site move from temporary measures to full long-term resilience.
We’re proud to be a trusted electrical partner on this significant infrastructure upgrade and to play a role in protecting water resources for the future.