Sustainability at CSG
Our approach to sustainability brings together responsible waste management, efficient use of resources, support for our people and investment in communities. Through our own treatment facilities and specialist teams, we work to recover value from waste where suitable and report openly on our performance.
In 2025, our overall permitted waste recovery rate was 83.36%. This includes discharge to sewer classified as recovery under the methodology explained in our 2026 Sustainability Report.
Our Sustainability Approach
Sustainability at CSG is built around three connected priorities:
Protecting the environment
through responsible waste management, energy efficiency, and emissions reduction
Supporting our people
with safe systems of work, fair pay, development opportunities, and wellbeing support
Strengthening communities
locally and globally through meaningful partnerships and social investment
Waste Recovery & Resource Management
We assess waste to identify suitable opportunities for reuse, recycling and other recovery, including energy recovery. Our own treatment facilities support this approach, with specialist treatment or disposal used where required by the waste’s composition and hazards.
In 2025, our overall permitted waste recovery rate was 83.36%. This includes discharge to sewer classified as recovery under the methodology explained in our 2026 Sustainability Report.
Energy, Fuel & Carbon Reduction
We work to improve energy efficiency and reduce emissions through fleet investment, process improvements and on-site solar generation. We monitor performance to identify further opportunities across transport and treatment operations.
Our solar panels generated 388 MWh of electricity in 2025.
Water & Process Efficiency
Water supports our waste treatment processes. We report water use at our permitted facilities, including estimates where separate metering is unavailable, and work to improve measurement and resource efficiency.
A People-First Culture
We aim to provide a safe, inclusive and supportive workplace, with opportunities to develop and progress. In our 2025/26 reporting, women held 35.71% of supervisory roles. Our reported mean gender pay gap was 1.1%.
Developing Future Talent
We invest in apprenticeships, training and development to build the skills our industry needs. From drivers and waste control operatives to chemists and engineers, we support colleagues in developing practical knowledge, specialist expertise and opportunities to progress within CSG.
Supporting Local Communities
Through our Community Chest scheme, we support charities, schools and community groups connected to the areas where we operate. Contributions help local organisations fund equipment, activities and services that benefit their communities.
Global Impact: Toilet Twinning
CSG donates 50p for every household septic tank emptied to Toilet Twinning. In 2025, we contributed £10,515, bringing our four-year total to £42,515 and helping twin more than 700 toilets.
Looking Ahead
While we’re proud of the impact we’ve made so far, we know there is always more to do. Our priorities for future sustainability initiatives include:
- Improving energy efficiency and reducing emissions from transport and treatment.
- Improving water measurement and resource efficiency.
- Preventing musculoskeletal injuries through safer working practices, training and suitable equipment.
- Supporting diversity, employee wellbeing and skills development.
Support Your Sustainability Goals Through Better Waste Management
Tell us about your waste streams, current arrangements and reporting requirements. Our team can assess suitable treatment and recovery options and discuss how CSG could support your waste management objectives.