MACCLESFIELD WWTW

PROJECT START December 2023

PROJECT COMPLETE December 2024

PROJECT VALUE *High value contract*

PROJECT LOCATION Macclesfield

Client: United Utilities

Framework Partners: C2V (Main Contractor), LCS Civils Ltd (Sub-Contractor)

Programme: AMP7 (Asset Management Period 7) – Batch SE11, Tranche 2

Project Summary

LCS Civils Ltd, under a Framework Agreement with C2V, successfully delivered civil engineering works as part of the AMP7 programme for United Utilities. The project focused on the enhancement of infrastructure at the Macclesfield Wastewater Treatment Works to meet future environmental and population demands. As a key subcontractor, LCS Civils undertook the installation of complex drainage systems, associated chambers, and pipework, contributing to the overall process and network upgrades on-site.

Scope of Works

•  Installation of Pipework:

•  MCC1: 1,355 meters

•  MCC2: 3,055 meters

•  MCC3: 62 meters

•  Pipe Diameters: Ranging from 25mm to 1200mm

•  Materials Used: PCC, Ductile Iron, HDPE

•  All works passed rigorous testing and inspection standards.

•  Chambers & Drainage:

•  Construction and installation of associated chambers to support new and existing infrastructure.

 PCC Culverts :155 meters

 Distribution Chambers

 PCC Structures

 MCC’s

 Ducting, Troughs and Chambers – Various banks 2991ms

Regulatory and Environmental Outcomes

All six regulatory outputs were successfully delivered ahead of schedule and claimed by December 2024—an exceptional achievement for the project team. These outputs were targeted to meet the Water Industry National Environment Programme (WINEP) and Environment Agency (EA) requirements for sustainable wastewater management and improved effluent quality.

Key Deliverables and Performance Targets

• Achieve final effluent quality of:

• 0.3 mg/l Total Phosphorus (Annual Average – Spot Sampling)

• 2 mg/l Ammonia (95%-ile)

• 12 mg/l Ammonia (Upper Tier Limit)

• Installation of Event Duration Monitoring (EDM) on overflows to storm tanks.

• Flow to Full Treatment (FtFT) Monitoring, achieving full MCERTS certification.

• Removal and upgrade of incoming HV electrical panel, ensuring compliance with

current standards and improved site safety.

• Construction of a new inlet works, including:

• Two-stage screening

• Grit removal

• Flow to Full Treatment (FtFT) measurement and control

Project Impact

The successful delivery of the Macclesfield WwTW project ensures long-term environmental compliance, supports regional population growth, and enhances operational resilience. LCS Civils Ltd played a vital role in delivering key civil engineering elements, contributing to the overall success of the programme.