Sediment Management

The Sediment Task Force brings together the knowledge of local governments, builders and developers to create resources to tackle some of the environmental impacts of building development.

The Sediment Taskforce has brought the private and public sectors to look at the problem of sediment from building sites entering our storm drains and waterways. Looking at it from a whole of system perspective has increased awareness of the financial and environmental impacts of poor building site management, and a range of studies and resources are now available.

Local Government Tool for Sediment Management

Soil erosion from building, subdivision and construction sites is a major source of stormwater pollution in urban areas of WA. When it enters our waterways or wetlands, sediment (soil, sand, silt and mud) washed from urban areas can cause short and long-term environmental problems.

Sediment can block drains, leading to localised flooding, and obstruct and/or damage stormwater drainage infrastructure and Water Sensitive Urban Design technologies; often resulting in Local Governments having to pay to fix the damage.

Local Government Officers (LGOs) are often charged with the task of monitoring for compliance with State legislation and their own local laws, policies, plans and/or guidelines for erosion and sediment control.

To help LGOs in this important work, the Sediment Task Force has developed an On-Site Checklist for Inspecting Soil Erosion and Sediment Loss from Building, Subdivision and Construction Sites which aims to assist LGOs to quickly identify and inspect incidences of soil erosion, sediment runoff, sand drift and dust from building, subdivision and construction sites; record and follow up on actions to resolve a breach; provide best practice recommendations; and offer useful tips to facilitate a positive and timely solution.

This checklist has been endorsed by WALGA as a necessary tool in the drive for delivering a Waterwise community and to reduce the environmental impact of urban development.

Local Governments are encouraged to use this checklist as their own “in-house” publication. The Checklist could be included in a manual or as part of your internal reporting processes. It’s simple to do: choose the web-based version of the checklist and add your own logo.

An interactive pdf version of the checklist can be downloaded for use in the field; simply ‘save as’ with the name of the site visit to maintain your records. Download the interactive pdf checklist.

A complementary on-site checklist has also been developed for West Australian builders in partnership with the Housing Industry Association of WA.

Both checklists have been developed as part of the Sediment Task Force Project which is coordinated by Perth NRM and sponsored by the Department of Biodiversity, Conservation and Attractions and the City of Armadale.


On-Site Builders Checklist for Preventing Sediment

Free On-Site Builders Checklist for Preventing Sediment Loss now available – a handy new tool for your toolbox!

All builders (including sub-contractors, tradespersons & suppliers) must take responsibility for controlling sediment loss from building sites.

The Sediment Task Force’s Builders Checklist can be used as a guide to prevent soil erosion, sediment runoff, sand drift and dust from building sites. This is good news for builders as it will result in:

  • A reduction in the cost of supplying sand and stockpile losses.
  • A reduction in clean-up costs and reduction in the risk of fines/loss of bond.
  • A better public image and fewer public complaints.
  • More marketable sites and earlier sales.
  • Earlier completion and reduced downtime; and
  • All weather site access and improved wet weather conditions.

Builders can use the checklist when arriving at and leaving site, for regular checks of sites and vacant blocks, and before and after a rain, wind or storm event.

The checklist can help builders identify tasks to do immediately to avoid an infringement and/or possible prosecution.

The checklist also contains information on why covering soil and soil stockpiles is the best way to stop erosion and save money and time, and erosion and soil control tips and recommendations.

Building companies can add their own logo to the checklist for inclusion in a work schedule, guideline, manual and/or for reporting purposes. Download docx version here.

There’s also an editable pdf format so builders can fill out the checklist in the field. Download interactive version here using ‘Save As’.


Local Government Case Studies

Preventing and controlling soil erosion, sediment runoff and sand drift from building, subdivision and construction sites is a significant issue for Local Governments (LGs). The environmental and financial impacts are considerable, and these are managed by Local Governments across Western Australia in diverse ways to varying levels of success.

In order to raise awareness, educate and inspire LGs to trial and/or embrace new tools and mechanisms to more effectively manage soil erosion, sediment runoff and sand drift, the Sediment Task Force has compiled this case study series Examples of Local Government’s response to erosion resulting from urban development in Perth, WA.

Download
Shire of Augusta-Margaret River’s strategic approach to managing development protects local waterways. Augusta-Margaret River (pdf)
City of Bayswater is facilitating cooperation from builders and developers. City of Bayswater (pdf)
Town of Cambridge is addressing sediment loss at its source. Town of Cambridge (pdf)
City of Cockburn has adopted a “multi-pronged approach” for sand drift and dust management. City of Cockburn (pdf)
City of Kalamunda’s comprehensive regulatory framework to decrease sedimentation. City of Kalamunda (pdf)
City of Subiaco is remediating environmental degradation caused by sedimentation. City of Subiaco (pdf)
City of Swan’s Development Design Specifications work with subdivisions. City of Swan (pdf)

Other Resources

For builders and developers
Building an environmentally sustainable home?

What you need to know about mitigating building sediment loss from your site:

For local government
Manuals and reports

Model demonstrating sediment loss from building sites now available for loan
Perth NRM’s purpose-built sediment model enables people to learn about the impact of sedimentation in our rivers and wetlands by demonstrating how sediment loss from building sites occurs. The model has been exceedingly popular with children who are able to make it rain and compare the movement of sand in vegetated and non-vegetated landscapes.

Partners

We acknowledge and appreciate the support of all our partners, supporters, funding bodies and sponsors.

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