Onsite Wastewater Assessment & Certification

Introduction

Incon was engaged to deliver structural certification and engineering review services for multiple onsite wastewater systems across regional South Australia. The project involved providing compliant design verification and certification for a large portfolio of residential and commercial developments in collaboration with Waterscope.

Project
description

This project comprised the assessment, review, and certification of onsite wastewater management systems across 60+ sites throughout South Australia, including locations such as Wolseley, Middleton, Kangaroo Island, and McLaren Vale.

Each site required:

Review of wastewater system layouts and design documentation
Structural and installation compliance verification
Certification for council approvals and regulatory compliance

The works covered a diverse range of conditions including:

Coastal environments
Rural and remote locations
Varying soil profiles and site constraints

The project was delivered as a multi-stage, high-volume certification program, requiring consistency, efficiency, and technical accuracy.

Challenge

Managing certification for over 60 sites required robust systems to ensure consistency and quality across all deliverables.
Each site presented unique constraints including:

Soil variability
Slope and drainage conditions
oEnvironmental sensitivity

Designs needed to align with:

Council approval processes
Environmental health standards
Wastewater system performance criteria

Solution

Incon implemented a structured and scalable engineering approach focused on standardisation, efficiency, and compliance assurance:

Developed a consistent methodology for:

Reviewing wastewater system designs
Assessing structural and installation requirements
Ensuring compliance across all sites

Utilised a streamlined workflow to manage:

Parallel project assessments
Rapid turnaround of certifications
Clear documentation and tracking

Risk-Based Engineering Review
Applied engineering judgement to:

Identify site-specific risks
Ensure system performance under varying conditions
Verify constructibility and long-term functionality

Key Engineering Value Delivered

Successfully delivered 60+ wastewater certifications across South Australia
Ensured full regulatory compliance, enabling smooth council approvals
Provided consistent, high-quality engineering outcomes at scale
Reduced delays through efficient turnaround and coordination
Supported sustainable wastewater management solutions across diverse environments
Demonstrated capability in high-volume, program-based engineering delivery

Other Projects

We deliver project success and technical excellence.

We take pride in delivering innovative and practical solutions which adds real value to our clients and the community. We strive for better outcomes that delivers a best possible solution by employing our technical expertise. We believe the real value in good engineering is breaking down a complex problem into a simple solution which underpins our philosophy of ‘do it right – the first time’.