As a leading provider of water treatment services in New Zealand, Opus has developed a long track record of delivering high quality, cost-effective engineering solutions.  Our success has been achieved utilising leading-edge technology and people who are experts in their field.  Our volume of repeat commissions reflects the high esteem our clients have for our services.

We have one of the largest water treatment capabilities in New Zealand - and the expertise of our environmental engineers and scientists to address all aspects of water treatment design, including:

• Strategic planning
• Pilot plant modelling and design
• Construction supervision
• Commissioning

Many of our specialists offer international experience in high-technology treatment processes.  Their combined knowledge traverses all forms of treatment including:

• Chemical dosing
• Coagulation and flocculation
• Clarification, filtration and disinfection
• Sludge treatment, monitoring and control systems
• Algal management
• Specialised design for specific processes such as the removal of ammonia, arsenic, iron, pesticides and TOC

We have operational experience, and are increasingly sought after for optimisation and trouble-shooting of plant processes and operations.

Opus’ environmental team offers expert advice and services to address changes in environmental legislation. These changes are placing increasing pressure on local authorities, government agencies and private clients.  We offer services for Assessments of Environmental Effects (AEE), mitigation options, monitoring for compliance, public consultation programmes and consent applications.

With commissions from rural and municipal local authorities, industry, and the private sector, we recognise our clients have varying needs. We tailor our solutions accordingly, always with a desire to achieve the most efficient and cost-effective outcomes.