Colas Limited’s Warrington site is the UK’s primary manufacturing facility for the supply of bitumen emulsions and related road surfacing products.
Mollington Contracts was invited to tender for the replacement of a decommissioned tank base, having successfully completed prior works for Colas.
The project involved removing the original concrete base and constructing a newly designed foundation for a replacement storage tank,located behind existing storage tanks. Working within an active petrochemical facility required a rigorous approach to safety, logistics, and environmental protection.
Pre order meetings were carried out to establish best practice, methodology of construction, procurement of materials and whole of life costs. Mollington Contracts carried out its pre-planning routine to detail its proposals for the works to be carried out:
- Methodology for the deconstruction/construction of the tank base.
- Collaboration with Colas, tank manufacturer and installation team.
- Procurement planning and lead time management
- Preparation of Risk assessments and Method statements.
- On site material storage to mitigate COSHH and environmental risk.
- Phased demolition and construction sequencing.
- Programme development with critical path analysis.
- Protection measures for adjacent operational areas.
Summary
This project demonstrates Mollington Contracts’ ability to deliver high risk Petrochemical sector works to a high standard of safety, quality and client satisfaction. The outcome strengths our relationships with clients and affirms our capability to provide efficient and value-driven civil engineering solutions.
Project Stakeholders: Project Client – Colas. Warrington.
Principal Contractor: Colas
Sector: Civils, Demolition, concrete and formwork
Role: Subcontractor
Value: £50,000.00
Date: 2025
Programme: 6 weeks
Form of Contract: Traditional
Scope:
- Deconstruction of existing tank base.
- Excavation and removal of material to form new base area.
- Formwork and concrete pouring.
- Ground investigation and base design for Client approval.
Key Considerations for the Client:
- collaborative working / partnering.
- local labour to reduce the project carbon footprint.
- effective communication.
- Contractor awareness of the petrochemical industries safety standards.
- competitive price.
- Workforce competence and flexibility.
Contractor Added Value:
- Direct and short management chain for effective communication.
- Embedded health and safety culture.
- Proactive support to assist other trades, demonstrating team flexibility.
- Mollington’s own quality control procedures.
- Recycling and re-use of site won material.
Customer Satisfaction KPI:
- Health &Safety: 100% Compliance
- Programme: Delivered on time and within budget.
- Client feedback: Highly Positive highlighting team professionalism and quality of workmanship.