Wastewater Disposal Design

Wastewater Site Assessment and Disposal Design

Council-Approved Designs for Rural & Un-sewered Properties Across South East Queensland.

We specialise in wastewater disposal design and reporting to aid people located in rural areas, who do not have access to the sewerage network of a larger community.

We have extensive experience site assessment and design of wastewater disposal to local council and Queensland requirements. We specialise in efficient and cost effective design of wastewater  disposal. The services we can offer are as follows:-

• Site assessment, wastewater design and reporting for SEQ and Northern NSW
• Field Soil Percolation Testing
• Design of Septic Trenches
• Spray Irrigation Design
• Subsurface Irrigation Design
• Reed Bed Design
• Mound Disposal Design
• Design of “On-Site Sewage Facilities” to AS1547- 2012 and Qld Plumbing Code
• Form 8 Certification
• Specialize in Brisbane City Council Wastewater Disposal Design

Why Choose Our Waste Water Design Services?

We make the council approval process as smooth and stress-free as possible. We also bring extensive experience across South East Queensland and Northern NSW, providing:

• Fully compliant designs for all council areas
• Fast turnaround on site assessments and reports
• Accurate soil classification and percolation testing
• Cost-effective and efficient design solutions
• AS1547 & Queensland Plumbing Code expertise
• Specialists in challenging sites and non-standard soil conditions

What Is a Wastewater Site Assessment?

A wastewater site assessment evaluates your property’s:

• Soil type and permeability
• Slope, drainage, and landscape features
• Proximity to waterways
• Flooding and overland flow risk
• Available land for disposal areas
• Suitability for trench, irrigation, mound, or advanced treatment systems

This assessment forms the foundation of your wastewater disposal design and is mandatory for most rural builds, renovations, secondary dwellings, and onsite sewage upgrades.

What Are Our Wastewater Design Service Inclusions?

We design complete wastewater disposal systems for all property types, including:

Septic Trench Design
Traditional trench systems sized to suit soil type and household load.

Subsurface Irrigation Design
Low-visibility land application areas that are ideal for landscaped sites.

Surface / Spray Irrigation
Cost-effective secondary-treated effluent dispersal systems.

Reed Bed Design
Eco-friendly systems designed to enhance wastewater treatment performance.

Mound Disposal Design
Perfect for sites with poor soil conditions, high water tables, or sloping land.

Advanced Secondary Treatment Systems
Council-compliant system designs for properties requiring higher levels of wastewater treatment.

Every design includes plan drawings, system sizing, soil analysis, and a council-ready report.

Waste Water Design Compliance

Our reports are ready for submission with building applications, plumbing approvals, and engineer documentation.

All designs comply with:

• AS1547 On-site Domestic Wastewater Management
• Queensland Plumbing and Wastewater Code
• Local council regulations (SEQ)

We also specialise in:

• Brisbane City Council wastewater disposal design
• Form 8 Certification for onsite sewage systems

Service Areas

We service all major regions including:

• Brisbane
• Ipswich
• Logan
• Gold Coast
• Moreton Bay
• Sunshine Coast
• Scenic Rim
• Lockyer Valley
• Somerset Region
• Toowoomba surrounds

If you’re unsure whether we cover your area — just ask.

Frequently Asked Questions