Environmental Site Auditor

Ready to make a real impact where it matters most? At Thames Water, we’re not just keeping taps flowing and toilets flushing for 16 million customers — we’re building a more resilient, sustainable future. As an Environmental Site Auditor, you’ll be at the heart of that mission, leading site audits, supporting operational teams, and driving continuous improvement. If you’ve got a passion for the environment, strong stakeholder skills, and the drive to ensure we meet our commitments, this is your chance to help shape the future of water.

• Undertake site environmental and permit compliance audits as per the annual audit programme for your geographic region
• Carry out audits on any permitted asset including Sewage Treatment Works, Pumping Stations, Water Treatment Works, Waste and Air emissions facilities.
• Provide support and training to operational teams so that they understand the requirements of the EMS.
• Support operational teams in preparation and during external audits.
• Create summary reports of your audits and present these back to Operational Managers.
• Highlight any non‑compliances and drive actions to completion in your region using the EMS
• Provide regular reports on the progress of the audit programme within your region and key areas of risk/concern

This position will be working hybrid from one of our Thames Water sites in the London area. This can be any of the following sites:
Maple Lodge STW, Mogden STW, Hogsmill STW, Long Reach STW, Crossness STW, Beckton STW, Deephams STW, Bishops Stortford STW, East Hyde STW, Crawley STW, Guildford STW or London Water Production Sites. Whilst these sites are base locations you can also work from home or be office based.

A full driving licence is required for this position. The salary for this position is between £50,000 and £55,000 dependant on experience.

• An understanding of environmental legislation and permits
• Knowledge of wastewater pumping and treatment processes
• Can competently use a variety of software packages (e.g. Microsoft 365)
• Ability to write audit reports and actions
• Understanding of Health and Safety site requirements

• Have worked on, or with, front line operational teams (ideally Sewage Treatment Works, Water Treatment Works or Pumping Stations)
• Experience interacting with Regulators on operational sites
• Experience working within ISO accredited management systems
• Development of Power BI reports and Microsoft forms
• Knowledge of sludge treatment processes
• Knowledge of Pollution Prevention Control Principles
• Qualification in environmental or science related subject
• Auditing qualification

• Competitive salary from £50,000 to £55,000 per annum
• Annual Leave – 26 days holiday per year increasing to 30 with the length of service (plus bank holidays)
• Performance‑related pay plan directly linked to company performance measures and targets
• Generous Pension Scheme through AON
• Access to lots of benefits to help you take care of you and your family’s health and wellbeing, and your finances – from annual health MOTs and access to physiotherapy and counselling, to Cycle to Work schemes, shopping vouchers and life assurance.

Find out more about our benefits and perks

We’re the UK’s largest water and wastewater company, with more than 16 million customers relying on us every day to supply water for their taps and toilets. We want to build a better future for all, helping our customers, communities, people, and the planet to thrive. It’s a big job and we’ve got a long way to go, so we need help from passionate and skilled people, committed to making a difference and getting us to where we want to be in the years and decades to come.

Learn more about our purpose and values

Thames Water is a unique, rewarding, and diverse place to work, where every day you can make a difference, yet no day is the same. As part of our family, you’ll enjoy meaningful career opportunities, flexible working arrangements and excellent benefits.

If you’re looking for a sustainable and…