An exciting opportunity has arisen for an experienced Environmental Manager to support the contract. The role is predominantly site-based working at the Urenco UK nuclear licensed site in Capenhurst (near Chester) with occasional hybrid working. Applicants are expected to achieve baseline and SC security levels and be willing to work within an integrated team at the client’s premises for the programme management and delivery roles. The Environmental Manager will lead the environmental function for the HALEU Advanced Fuels Facility programme at Capenhurst, ensuring compliance with statutory, client and company requirements across a high‑hazard, nuclear‑licensed site. The role provides expert guidance on environmental risk, with a specific focus on water management, including surface water, groundwater, trade effluent, pollution prevention, and hydrological impacts associated with construction and FEED activities. The role will be responsible for collaborating with the Costain team and the client to secure necessary environmental permits and maintain strict regulatory compliance. The postholder enables the Contract Leadership and Operational Teams to implement the SHE Management System, delivering project‑specific initiatives, and ensuring all requirements are met. #LI-ES1 RESPONSIBILITIES Responsibilities • Environmental & Water Compliance — Ensure compliance with environmental legislation, permits, and nuclearsite requirements, with particular emphasis on water management (surface water control, groundwater protection, drainage systems, pollution prevention, and trade effluent discharge). This will include supporting the contract team and advising the client on obtaining environmental permits and establishing controls to ensure compliance with permit conditions. • Environmental Management System — Support and influence Contract Leadership and client teams in implementing the SHE Management System, ensuring environmental and water‑related controls are embedded and effective. • Water Risk Assessment & Mitigation — Identify, assess, and manage water‑related environmental risks, including contamination pathways, hydrological impacts, and construction‑related water hazards; develop mitigation plans and monitor effectiveness. • Training & Coaching — Ensure delivery of environmental training by competent individuals, enabling teams to implement environmental controls confidently and consistently. • Supply Chain Assurance — Support the appointment, onboarding, and ongoing assessment of supply chain contractors, ensuring they meet Costain and client requirements. • Environmental Assurance Programme — Develop and implement a contract‑specific assurance programme covering environmental and water‑management compliance, monitoring, inspections, and audits. • Incident & Event Management — Ensure all unplanned events and assurance findings are categorised, investigated, and lessons learned are shared in accordance with the SHE Management System. • Environmental Data & Reporting — Provide timely reporting and analysis of environmental data, using insights to influence leadership decisions and develop improvement plans aligned with KPIs and sustainability frameworks. QUALIFICATIONS Essential * 5 years environmental experience within a Nuclear Licenced / High-Hazard environment • Experience of obtaining environmental permits and developing strategic relationships with regulatory authorities including the Environment Agency. • Demonstrable experience in water management, including surface water, groundwater protection, drainage systems, pollution prevention, and regulatory engagement. • Strong background in environmental monitoring, reporting, and data analysis. • Experience managing environmental incidents, investigations, and corrective actions. • Relevant Degree or equivalent (NVQ Level 6) in Environmental Science, Environmental Management, or related discipline Desirable • Experience contributing to sustainability, decarbonisation, or nature‑positive programmes. • Experience working with external auditors, certification bodies, or environmental consultants. • Environmental Degree (Bsc/MSc) • Institute of Leadership and Management Level 5 Line Managers tool kit or equivalent. • Commercial Awareness • Programme/Project management training • Specialist environmental courses- e.g. noise measurement, waste, contaminated land, CL:AIRE DOWCOP etc Costain helps to improve people’s lives with integrated, leading edge, smart infrastructure solutions across the UK’s energy, water, transportation and defence markets. We help our clients improve their business performance by increasing capacity, improving customer service, safeguarding security, enhancing resilience, decarbonising and delivering increased efficiency. Our vision is to be the UK’s leading smart infrastructure solutions company. We will achieve this by focusing on blue chip clients whose major spending plans are underpinned by strategic national needs, regulatory commitments, legislation or essential performance requirements. We offer our clients leading edge solutions that are digitally optimised through the following five services which cover the whole lifecycle of their assets: future-shaping strategic consultancy; consultancy and advisory; digital technology solutions; asset optimisation and complex programme delivery. Our culture and values underpin everything we do. Costain appreciate the time and effort taken when applying for one of our positions but, due to the high volume of responses, we are unable to provide individual feedback on candidates at application phase. We do share individual feedback following an interview. A Disability Confident employer will generally offer an interview to any applicant that disclose they have a disability and meets the minimum criteria for the job as defined by the employer. It is important to note that in certain recruitment situations such as high-volume, seasonal and high-peak times, the employer may wish to limit the overall numbers of interviews offered to both disabled people and non-disabled people. For more details please go to the Disability Confident website: https://www.gov.uk/government/collections/disability-confident-campaign [https://www.gov.uk/government/collections/disability-confident-campaign]