Waste, resources and sustainable procurement

Reducing waste and recycling more

NGN waste recycled, reused or recovered in 2024/25.

Excavation waste contributes over 99% of NGN’s waste by weight. In 2024/25 we sent 0.02% of our excavation waste to landfill and are on track to achieve our target of less than 0.1% by 2026.

In addition, during 2024/25 we achieved 0.01% office and depot waste to landfill, down from 0.25% in 2023/24.

We continually work with our contractors and supply chain partners to minimise our waste disposal to landfill and use of primary aggregates in reinstatement.

See table below - NGN waste and resource use performance

Purchasing sustainably

In April 2022 we launched a new Supplier Code of Conduct to embed sustainability in our supply chain.

Our code is aligned to the UN Sustainable Development Goals. We have set a target to achieve 80% of our supply chain by value compliant with our code by March 2026. By the end of 2024/25 we had already achieved 87%.

Case Study

Recycling end-of-life PPE

Read Case Study

NGN waste and resource use performance

	2021/2022- actual	2022/2023 - actual	2023/2024 - actual	2024/2025 - actual	2025/2026 - target
Excavation Waste (t)	201,061	196,887	235,897	225,598	n/a
Office and depot waste (t)	981	936	946	937	916
Other waste (t)	11	5	66	31	n/a
Total waste (t)	202,053	197,828	236,909	226,566	n/a
Waste to: Landfill Recycled/reused Recovered	Landfill: 0.12% Recycled/recovered: 99.88%	Landfill: 0.22% Recycled/reused: 99.52% Recovered: 0.26%	Landfill: 0.00% Recycled/reused: 99.89% Recovered: 0.11%	Landfill: 0.02% Recycled/reused: 99.87% Recovered: 0.11%	<0.1% to landfill
Primary aggregate use in reinstatement	8%	9.5%	2.7%	3.9%	<2.5%

*In 2021/22 due to the nature of our waste data, recycled and recovered values were combined.