Projects by Service – Water

Sydney Olympic Park – Leachate Treatment Wetland and Irrigation

Sydney Olympic Park – Leachate Treatment Wetland and Irrigation Liasion with NSW EPA | Treatment wetland design | Effluent irrigation modelling and design

AWC, in partnership with EnviroPacific and Henry and Hymas Consulting Engineers, completed the detailed design and construction of a leachate treatment and disposal system at Sydney Olympic Park.


Coolum STP Constructed Wetland Trial

Wetland modelling and design, construction supervision

The Coolum STP wetland trial is the most comprehensive investigation into the performance of constructed wetlands for pollution control in recent years.

Reef Rescue: Treatment of Agricultural Runoff

Pollutant reduction modelling | Detailed design of treatment systems | Construction supervision

AWC have been working with the Burnett Mary Regional Group since 2010 to provide remediation measures that combat diffuse pollution wtihin the Great Barrier Reef catchment.

Iron Pot Creek Drainage and Erosion Plan

Geomorphic assessment of erosion | Hydrologic/hydraulic modelling | Ecology | Detailed designs

Iron Pot Creek and associated tributaries have areas of extensive erosion, caused by a combination of historical land clearing, urban development and construction of infrastructure.

AWC and Bligh Tanner Consulting Engineers collaborated in providing a holistic erosion and bank stability strategy.

Monitoring of Urban Lakes

Water sampling | Data analysis

Gold Coast City Council are installing Floating Reed Beds (FRBs) within three urban lakes on the Gold Coast. To determine if the installation of FRBs within the three  lakes changes the level of pollutants and water quality within each lake system, regular water quality monitoring was completed to establish baseline datasets to provide for future data comparison.

Cumbalum Urban Release Area

Groundwater assessment | Ecological review | Modelling

The Cumbalum Urban Release Area (CURA) is a strategic rezoning to help provide for future housing needs within the Ballina Shire. Following preliminary site investigations by  a number of consultants, AWC were commissioned to investigate post-development groundwater scenarios with regard to potential impacts on endangered ecological communities, threatened fauna habitat and the adjacent Ballina Nature Reserve in order to determine the efficiency of stormwater and WSUD proposals and review proposed mitgation measures.

Onsite wastewater management at several country public schools and Reviews of Environmental Factors (REFs)

Soil testing | Review of Environmental Factors | Effluent modelling

The NSW Department of Public Works engaged AWC to conduct soil and site assessments for the upgrade of onsite wastewater treatment and disposal systems at several Northern NSW public primary schools/education facilities at The Channon, Dorroughby, Upper Bonalbo, Modanville and Wilsons Creek.

Foreshore rehabilitation options report – Golden Beach, Sunshine Coast

Riparian restoration | Shoreline stablisation | Landscape design

AWC was engaged by Spotless Services Australia Limited to undertake a review of options for shoreline rehabilitation within the Australian Navy Cadets lease area at Golden Beach.

Stormwater management plan | Stormwater treatment and reuse scheme

Stormwater quality modelling (MUSIC) | Strategic planning | Tasmanian state legislation

Simplot (a vegetable processing factory) engaged AWC to prepare a Stormwater Managment Plan (SWMP) for their Devonport Vegetable Processing Facility, incorporating a concept design of a stormwater treatment and reuse system and risk managment plan.

Nerang Estuary Ecosystem Health Study


AWC have been awarded the Nerang River Estuary Ecosystem Health Study.  The purpose of the Nerang Estuary Ecosystem Health Study is to accurately assess the health of the estuary and provide Gold Coast City Council with a strategy for managing the Nerang River Estuary. 

Iluka Bay foreshore erosion project

Landscape design | Erosion control | Estuary Management | Review of Environmental Factors

To remediate problems with the Iluka Bay foreshore area, AWC completed detailed site assessments, design drawings to rectify erosion and a Review of Environmental Factors to implement the works.

Coolangatta Creek Catchment Management Plan

Catchment pollutant modelling | Riparian assessment | Aquatic fauna surveys | Community consultation

AWC were engaged by Gold Coast City Council to complete the Coolangatta Creek Catchment Management Plan.  The Plan will provide an updated management tool that will enable GCCC, government agencies and stakeholders to take a co-ordinated approach to the protection and management of Coolangatta Creek.

Environmental Management Plan: Cooroy to Curra, Bruce Hwy Upgrade

Knowledge of major road infrastructure projects | Understanding of potential environmental impacts

An Environmental Management Plan (EMP) was prepared by AWC (on behalf of Australian Wetlands Pty Ltd) for the Department of Transport and Main Roads (TMR) specific to the upgrade of the Bruce Highway between Cooroy and  Curra.

Waterbird Park – Rehabilitation design review and sediment removal plan

Soil testing | Aquatic weed management | Contaminated soil

Waterbird Park is an urban parkland located at Explorers Way, Carrara.  The park has a constructed wetland comprised of two sections, with dense infestations of Mexican waterlily. Due to the poor performance of the wetland and the difficulty in eradicating Mexican waterlily, Gold Coast City Council proposed the re-design of the system to increase performance and aesthetics of the watercourse.

Land Application of Sewage Biosolids

Soil testing | Biosolids application modelling | NSW legislation

Byron Shire Council propose to provide biosolids from sewage treatment plants under their management for beneficial use on agricultural land, namely two sites under management as working dairy farms. The sites of the proposed biosolids application are in areas currently cultivated for cropping.

Pacific Highway Upgrade, Ballina Bypass

Ecological Assessment | Environmental Planning | Environmental Monitoring and Reporting

Purpose: To develop a strategy for the compensation package for a 200 ha coastal wetland complex and undertake ecological monitoring for three years.

See case study

Southport Parklands Redevelopment

Seagrass and Mangrove Transplanting

As specialists in the creation and management of aquatic ecosystem, Australian Wetlands were engaged to construct, establish and maintain a mangrove wetland system in the large-scale redevelopment of the Southport Broadwater parklands on the Gold Coast.

See case study

Rocky Point Power, Effluent Treatment Wetlands

Concept and Feasibility Design | Wetland Design

Purpose: To treat cooling tower effluent from a co-generation power plant prior to reuse for irrigation and discharge to Logan Estuary and Marine Park.

See case study 

ICOLL Management – Belongil Estuary

AWC have been monitoring the effect of artificial opening events on estuary and drain water quality and nearby wetland vegetation since 2008.  Since 2008 AWC have increased the scale of environmental monitoring of the opening events to include 5 monitoring sites over 7 days post opening and installed conductivity and water level loggers throughout the catchment to better understand the mechanisms behind the ‘need’ to artificially open the sand barrier between the Belongil Estuary and the ocean.

See case study

Riparian Restoration

Recent floods across the Burnett-Mary region have resulted in wide-spread riparian erosion and stream bank degradation. The Burnett Mary Region Group (BMRG) acquired funds from the federal government to rectify a number of sites across the region. AWC undertook a rapid riparian restoration assessment, concept retification designs and costings for all 13 sites.

See case study

Restoration Strategy Belongil-Cumbebin Wetland Complex

Site Investigations | Community Consultation | Water Quality & Wetland Rehabilitation Strategies

AWC produced a Wetland Restoration Strategy developed in accordance with the Northern Rivers Catchment Blueprint, setting the framework for integrated and holistic management into the future.

See case study

Western Corridor Recycled Water – Luggage Point AWTP

Treatment Wetlands Feasibility and Pilot Study | Concept Design

As part of the Western Corridor Recycled Water Project, an Advanced Water Treatment Plant is being constructed at Luggage Point which will discharge a brackish waste stream of reverse osmosis concentrate . AWC undertook a Feasibility Study on the suitability of available land for constructed wetlands to treat this waste stream, a concept design and pilot study of the effectiveness of several constructed wetland designs to treat this effluent type.

See Case Study

Airforce Beach Stormwater Wetlands, Evans Head

Wetland Design | Plant Installation | Maintenance

Purpose: To remediate identified impacts from stormwater by addressing past damage and installing cost-effective Best Practice pollutant source controls and treatment systems.

See case study

Brunswick River Restoration Works

Riparian restoration | Construction supervision | Ecological design

Purpose: To utilise joint funding from Byron Shire Council and NSW Fisheries for improvement works within the Brunswick Estuary.

Bokarina Wetland Translocation

Wetland Design and Relocation | Construction Methodology

AWC worked within developmental parameters to provide a method and detailed woks for the translocation and careful re-creation of the existing wetland to a new site. This was done by considering soil characteristics, hydrology and physical topography of the wetland.

See case study

Effluent reuse and biosolids disposal

Soil testing | Biosolids application and effluent irrigation modelling

The purpose of this project was to determine the soil characteristics of the Bangalow STP Property, classify the effluent of the STP and the biosolids produced at Bangalow, Byron Bay and Ocean Shores STPs.