Marine Waste Management & Collection

End-to-end waste collection, transport, and disposal for vessels at port — scheduled or on-call. 

InterGroup delivers specialist marine waste services to cruise ships, commercial vessels, and port operators across New Zealand. Operating 24/7, we provide rapid mobilisation, MARPOL-compliant handling, and experienced crews who understand the operational demands of live port environments.

Whether planned or unplanned, we integrate seamlessly into vessel schedules, berth constraints and port operations — ensuring minimal disruption and full regulatory compliance.

What we do 

We provide fully managed marine waste services across collection, transport, treatment and compliant disposal.

Vessel waste collection

Direct ship-to-shore transfer using Class 3 vacuum tankers (3,000L–24,000L), designed for efficient operation within tight wharf windows and restricted port access conditions.

Waste streams managed

We handle a wide range of marine and port-related waste, including:

• Sludge and oily water
• Grey water and black water
• SOx scrubber waste
• Blasting waste and coating debris
• Contaminated liquids and maintenance residues

Treatment & disposal

All waste is transported through approved and consented pathways, including InterGroup’s treatment and resource recovery facilities, ensuring safe processing and environmental compliance.

MARPOL compliance & documentation

We provide full MARPOL-compliant tracking, certification and disposal documentation for every collection. Our team coordinates directly with vessel captains, port authorities and contractors to ensure complete traceability.

24/7 operational response

Our teams operate around the clock to support scheduled arrivals, emergency requirements, weather delays and last-minute berth changes.

Operational coordination

We manage end-to-end communication between crews, port stakeholders, administration teams and vessel operators to ensure safe and efficient service delivery.

Why InterGroup 

InterGroup is a trusted partner for marine waste services across New Zealand’s major ports.

• Established operating approvals at the Port of Auckland and Port of Tauranga
• Dedicated fleet of Class 3 vacuum tankers (3,000L–24,000L capacity)
• Proven MARPOL compliance systems and documentation processes
• Single-provider solution covering collection, transport and disposal
• Experienced crews servicing cruise ships, cargo vessels, fuel carriers and vehicle transporters
• 24/7 availability with rapid mobilisation capability across New Zealand ports