Wastewater solutions that protect people, rivers & the planet
Untreated wastewater can damage our environment and communities. At SYSTRA, we design and deliver innovative wastewater solutions that protect rivers, reduce pollution, and support a sustainable future.
From storm overflow management to sustainable drainage in schools and streets, we work alongside water companies, contractors, developers, and regulators to ensure that what we flush away never harms our planet.
Our wastewater expertise
We help clients across the water, transport, energy, and infrastructure sectors to tackle wastewater challenges every day. Our expertise includes:
- Storm overflows (CSOs): Designing resilient, sustainable solutions that reduce spills and protect river health.
- Sustainable drainage (SuDS): Bringing greener, climate-resilient drainage systems to life in schools, streets, and developments.
- Developer support: Embedding wastewater removal strategies from day one to ensure projects are compliant, cost-effective, and environmentally sound.
- Treatment plants: Finding innovative, low-carbon ways to ensure treated water is safely returned to the environment.

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Environmental Strategy
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Water & Climate Solutions
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Drainage and Flood Risk Consulting
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Nature Positive
Read more sur Nature PositiveOur commitments
We’re helping clients meet urgent environmental goals while delivering measurable benefits for communities.
1. Cutting carbon
- On track to deliver net zero by 2030 across our own operations.
- Proven low-carbon design and material reuse strategies transferable from rail, highways and energy to water.
- Expertise in PAS 2080 compliance and carbon reduction in capital delivery.

2. Protecting rivers
- Supporting AMP8 projects to cut storm overflow discharges under regulatory and public pressure.
- Hydrology and catchment management expertise from global flood and drainage schemes.
- Integrating nature-based solutions like wetlands and reed beds into infrastructure projects.
3. Enhancing biodiversity
- Delivering 10%+ Biodiversity Net Gain on major infrastructure projects.
- Habitat creation, rewilding, and species migration corridors.
- In-house, CIEEM-accredited ecology specialists embedded in early design.
Projects in action

Why choose SYSTRA?
- Multi-sector experience: transport, water, energy, environment.
- Proven delivery of sustainable, low-carbon design.
- Global expertise with local delivery.
- A collaborative partner committed to protecting communities, rivers, and nature.
We’d love to help with your next wastewater project

Gareth DAVIES
Market Director

Marc STEDMAN
Discipline Lead
Insights
our Services

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Business Case Development
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Land Use Modelling
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Bridge and Viaduct Engineering and Design
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Environmental Impact Assessment (EIA)
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Urban Design and Masterplanning
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Find out what its like to work at SYSTRA, rewards, benefits and about different career pathways including apprenticeships and graduate opportunities.