Water & Wastewater Management Services
Optimise water use, cut costs, and strengthen sustainability with expert wastewater management services in New Zealand and Australia.
Protect your water resources. Reduce waste. Build resilience.
At DETA, our wastewater consultants help organisations across New Zealand and Australia use water more efficiently, reduce waste, and ensure environmental compliance. Our tailored wastewater management services help businesses in manufacturing, food processing, healthcare, and infrastructure sectors make smarter use of this critical resource — improving efficiency, lowering costs, and minimising environmental impact. Whether you need to identify water recovery opportunities, optimise existing systems, or develop a sitewide water reduction strategy, DETA delivers practical solutions that achieve measurable results.
Improve water efficiency and reduce wastewater volumes
Cut operational costs and safeguard compliance
Recover resources and reduce environmental impact
Strengthen resilience to water scarcity and future regulation
WasteWater CONSULTANTS
Water Efficiency Assessments – Fast Insights for Immediate Savings
For organisations wanting quick wins, our Water Efficiency Assessments provide a high-level review of your site’s water use and wastewater generation. These assessments identify efficiency opportunities and outline practical steps for improvement.

- On-site evaluation of water usage and process flows
- Identification of losses, leaks, and inefficiencies
- Benchmarking against industry standards
- Quick-win recommendations for reducing consumption and cost
Water Reduction
Detailed Wastewater Management Studies – Comprehensive Strategy Development
For larger or more complex sites, our Detailed Wastewater Management Studies provide a deep dive into water and wastewater systems to uncover long-term optimisation opportunities.

- Mass balance and yield recovery analysis
- Design of water recycling and reuse systems
- Treatment and mitigation strategy development
- Bioenergy and waste-to-value opportunity assessments
- Roadmaps for compliance, resilience, and sustainability
Wastewater COnsultant support
Ongoing Water & Wastewater Optimisation Support – Continuous Improvement
Beyond assessments, DETA provides ongoing technical support to ensure improvements are implemented and sustained over time.

- Continuous monitoring and reporting on efficiency gains
- Equipment optimisation and automation integration
- Support for water consent and environmental compliance
- Long-term guidance for sustainable water management practices
Why Choose DETA for Your Water & Wastewater Management Project
Specialist Wastewater Consultants
Our certified engineers and sustainability experts bring decades of experience in water efficiency and wastewater management across industrial, commercial, and government sectors.
Proven Results Across NZ & Australia
From Auckland to Melbourne, we’ve delivered measurable water savings, improved compliance outcomes, and enhanced resource recovery for clients of all sizes.
Comprehensive, Tailored Solutions
We provide end-to-end wastewater management services — from audits and design to optimisation and long-term monitoring.
Sustainable, Measurable Impact
Our strategies help clients cut costs, reduce environmental impact, and strengthen resilience in an increasingly resource-constrained world.
ANZCO enjoyed collaborating alongside the DETA team who were instrumental in ensuring the success of the project overall. We'll use this experience to generate future success within our business, ensuring the work on our sustainability and decarbonisation journey continues.
Start Your Water Efficiency Journey Today
We've helped many New Zealand & Australian businesses of all sizes with their energy management
