Water Hygiene Supervisor

Overview

Location: Imperial College London Campuses (South Kensington, White City & Hammersmith)

Hours: Monday to Friday, 08:00–17:00 (or 07:00–16:00)

Dalkia is seeking an experienced Water Hygiene Supervisor to support our Imperial College London contract, delivering water hygiene and water treatment services across a large, complex, 24/7 academic estate.

This role combines hands-on technical expertise with supervisory responsibility, with a strong focus on cooling tower compliance. You will ensure all water systems are operated and maintained in line with ACOP
, while managing PPM and reactive works and maintaining audit ready documentation.

• Lead all cooling tower operations, ensuring statutory compliance, monitoring, sampling, cleaning, disinfection, and chemical control.
• Plan and oversee water hygiene PPM and reactive works across cooling towers, domestic hot and cold water systems, and closed systems via CAFM.
• Review laboratory results, identify non-compliance or risk, and implement corrective actions.
• Maintain site logbooks, records, and reports to audit-ready standards and support audits and inspections.
• Supervise operatives and apprentices, coordinate specialist contractors, and provide technical guidance.
• Ensure full compliance with health, safety, and Dalkia QSHE requirements while maintaining strong client relationships.

• Strong technical knowledge of cooling towers, water hygiene, and water treatment, with in-depth understanding of ACOP L8, HSG
  274, and BS8580.
• Proven experience in a water hygiene or water treatment role within a commercial, academic, or healthcare environment.
• Experience supervising staff and managing specialist contractors.
• Relevant water hygiene or water treatment qualifications (e.g. City & Guilds / Legionella Control / L8 awareness); IOSH Managing Safely preferred.
• Confident communicator, organised, and able to work effectively under pressure.

• 25 days annual leave + bank holidays (with option to buy 5 more) PLUS a day off for your birthday and increase with length of service!
• Life Assurance & Private Medical Insurance (after 12 months)
• Recognition & referral bonus programmes
• Volunteering day & Employee Assistance Programme

At Dalkia, we’re passionate about delivering high-quality facilities services that keep our clients’ buildings running smoothly. We promote a culture of safety, collaboration, and professional growth. As a Water Hygiene Supervisor, you’ll be a valued member of a trusted team committed to excellence and customer satisfaction.

We are committed to equity, diversity, and inclusion. We ensure that every applicant is treated fairly and respectfully throughout our selection process. If you require any adjustments, please inform us in confidence. Our talent acquisition team is here to assist you.