Hydrowaste Facilities
Enabling Safe, Sustainable Disposal
InterGroup’s hydro-waste facilities provide efficient, compliant disposal and recycling of hydro excavation slurry – delivering measurable environmental and cost benefits.
Hydro-excavation is a fast, safe way to expose underground assets – but the slurry waste it generates poses a challenge for disposal and reuse.
Our hydrowaste facilities provide a cleaner, smarter alternative to landfilling raw slurry. By reducing the environmental impact of hydro excavation, we contribute to sustainable construction and smarter waste management – delivering real savings and reduced carbon emissions.
InterGroup network of hydrowaste facilities across New Zealand are purpose-built to treat wet waste efficiently, responsibly and sustainably. By investing in multiple regional plants, we minimise transport time and enable rapid turnaround – reducing costs and maximising productivity for our clients.
Each facility is designed to separate liquid and solid components, recover water for reuse and reduce waste volumes destined for landfill. This supports reduced emissions, lower disposal fees and stronger environmental outcomes.
With systems are engineered for throughput, compliance and sustainability – we help our clients meet their environmental targets and project deadlines.
Keeping Excavation Waste Under Control
What we do
With plants located in Auckland, Hamilton, Tauranga, New Plymouth, Wellington, and Christchurch, we process and recover materials from wet waste streams:
- Purpose-built slurry processing across six national facilities
- Reduce waste volumes and recovers usable water and soil
- Support environmental compliance and cost-effective disposal
- Meet growing demand for hydro-excavation support
How it works
- Waste slurry is offloaded at our facility for processing
- Solids are separated, dried, and, where appropriate, diverted from landfill
- Liquids are filtered and treated, with a portion recovered for reuse
- Contaminated soils and liquids are assessed and processed in accordance with environmental regulations
- All sites are designed for compliant operations in all weather conditions