Liquid Waste Management
Nationwide Liquid Waste Services You Can Rely On
InterGroup provides safe, compliant, and efficient liquid waste management nationwide, supporting councils, commercial businesses, industrial facilities, utilities, and rural customers.
From hazardous liquids and industrial effluent to septic tanks, grease traps, pump stations, stormwater systems and hydro‑excavation spoil, our specialist teams deliver reliable, environmentally responsible services wherever you need them.
Managing liquid waste correctly is essential for protecting people, the environment, and the performance of your site. With trained operators, specialist plant, and proven safety systems, InterGroup ensures your waste is collected, transported, treated and disposed of safely and in full regulatory compliance.
InterGroup delivers expert liquid waste services nationwide, supporting councils, businesses, industrial sites, and utility owners with collection, transport, treatment, and disposal.
Our Services Include:
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Servicing and cleaning of septic tanks, sumps, pump stations, grease traps, soakage pits, interceptors, cesspits, and wash bays
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Routine servicing, scheduled maintenance, and rapid emergency response
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Packaged waste collection, laboratory chemical disposal, de-watering, and treatment of septage and non-hazardous industrial liquid waste
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Flexible fleet of vacuum trucks (3,000L–24,000L) suited to a wide range of waste streams and site access requirements
Safety and Compliance You Can Trust:
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Confined space entry, hazardous waste handling, and spill response
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Dangerous goods certification and breathing apparatus capability, where needed
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Waste tracking and environmental reporting for full traceability and regulatory compliance
Our liquid waste services include:
Grease Trap Cleaning
We remove and dispose of grease trap waste to prevent blockages, odours and non- compliance with trade waste bylaws.
Interceptor Cleaning
We clean and empty stormwater and forecourt interceptors, removing sediment, hydrocarbons and contaminants to protect drainage networks.
Septic Tank Cleaning
We pump out septic tanks, remove solids and sludge buildup and ensure safe, compliant disposal.
Emergency Spill Response
Rapid deployment to contain, recover and dispose of spilled liquids — reducing environmental harm and site downtime.
Environmental Remediation
We remove contaminated waste, sludge and liquids from sensitive sites, supporting environmental restoration and compliance.
Grease Trap Waste
Collection, transport, and disposal of grease trap contents in accordance with trade waste and environmental regulations.
Septic and Sewerage Waste
Safe pump-out and transport of septic effluent, sewage, and wastewater from portaloos and other waste streams to approved disposal facilities
Interceptor Waste
Removal and disposal of hydrocarbon-contaminated waste captured in interceptor systems.
Wastewater
Collection, transport and treatment of nonhazardous wastewater from industrial and commercial operations.
Contaminated Sludge
We vacuum and remove sludge from tanks, pits and treatment systems — handling and disposal are fully compliant with hazardous waste requirements.
Waste Oil
We collect and transport used oils, oily water and oil-contaminated residues for responsible treatment and disposal.
Organic Waste
Collection of organic liquids and sludge for environmentally responsible processing or reuse, where applicable.
Marine Waste
We service vessels and port infrastructure by removing bilge, oily water and marine wastewater to prevent discharge into waterways.