2026 © CPC Civils Ltd. All rights reserved.
Design by eSterling
£1,400,000
Eric Wright Water LTD
Dirty Water
Treeton, Rotherham.
The project at Long Lane Water Treatment Works (WTW), in Treeton, Rotherham, would be delivered with Eric Wright as the Principal Contractor. CPC would engage as the subcontractor responsible for civil and concrete works.
Works would commence at the end of October 2024 and are now complete.
Our involvement would form part of the wider upgrade works at the facility, supporting new operational and access infrastructure in line with project requirements.
The Long Lane WWTW Phase 2 project is designed to upgrade and future-proof the treatment works serving a population equivalent of 24,127, ensuring ongoing regulatory compliance and improved operational performance.
A key driver for the scheme is the introduction of a new phosphorus discharge permit, requiring a tightened phosphorus limit of 0.5 mg/l alongside an iron 95th percentile limit of 4 mg/l.
To achieve this, the project includes:
These improvements will provide enhanced effluent quality control and reliable compliance with current and future environmental standards.
In addition to treatment process upgrades, the project delivers significant improvements to sludge handling, electrical infrastructure, and site operability.
Works include:
A new MCC kiosk will electrically supply the full scope of works, supporting both existing and new assets.
CPC Civils would also incorporate site-wide access improvements. This would include new paths, roads, and staircase slabs. These improvements enable safe working conditions and ease of maintenance for Yorkshire Water operatives, ensuring the site is safer, more efficient, and easier to operate long term.
The works completed by CPC now enable Yorkshire Water to comply with more stringent discharge conditions and overflow improvement requirements.
The upgrades improve effluent quality, strengthen operational resilience, and reduce the risk of non-compliance, supporting Yorkshire Water’s wider environmental and regulatory objectives.
The TSR Plant was set up in a temporary position. Over-pumping was introduced to ensure discharge compliance throughout the construction phase.
The plant was then craned into position once enabling works were complete so compliance was not compromised.
Design was piecemeal throughout the contract which was mitigated by CPC and EW due to close collaboration by both on and off-site teams.
The Wash Water Main was unchartered, close to the surface and fragile in many locations.
The team would highlight these risks early, trial holing to minimise damage to the main and utilising vacuum excavators in these locations.
There were also many further unchartered services throughout site. CPC would manage and avoid them in association with all other works on site.
As part of the project’s social values initiative, we supported the local community by carrying out environmental improvements at Rotherham Hospital.
Our team cleared a woodland walk and tidied and weeded several surrounding areas, helping to create a cleaner, safer, and more welcoming outdoor space for patients, staff, and visitors.
This work contributed to the wellbeing of the hospital community while demonstrating our commitment to sustainability and positive social impact.
This project marked CPC’s first collaboration with Eric Wright. The working relationship developed very positively throughout the duration of the works.
The initial subcontract package was valued at £800,000; however, due to the high standard of workmanship, effective contract management, and proactive approach adopted on site, Eric Wright subsequently awarded CPC additional works during the project.
This demonstrated a strong level of trust and confidence in CPC’s delivery capability.
As a result of this successful collaboration, Eric Wright has expressed a desire to continue working with CPC on future civil engineering contracts. CPC is already undertaking works with them on another site

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