An erosion and sediment control plan is a written document showing how a site will stop soil, sediment and pollutants leaving the site during construction.

Council usually asks for one before work starts. Done properly it takes a day to draft. Done badly it comes back with RFIs, delays the job, and risks fines when the next heavy rain dumps muddy water over the kerb.

This article walks through the standard structure of an ESCP, what each section needs, and the controls you will usually spec. It will not replace a CPESC certification, but it will help you write a plan a residential or small commercial site can actually use.

What Is an Erosion and Sediment Control Plan?

An erosion and sediment control plan (ESCP) is a site-specific document that identifies pollution risks from construction activity and sets out the physical controls used to manage those risks. It is a requirement under most Australian local council development consents and state-level environmental protection laws.

A good ESCP does three things. It shows the layout of the site, it lists the control measures in the order they will be installed, and it nominates who is responsible for inspecting and maintaining them. Councils and site supervisors should be able to read it and walk the site with the document in hand.

Why councils ask for one

The legal basis in NSW comes from the Protection of the Environment Operations Act. Similar laws exist in every state. The outcome is the same: a single site that lets sediment-laden runoff enter a stormwater drain can be fined, stopped, and named in a compliance notice. An ESCP is the paper trail that says you planned for it.

What Goes in an ESCP

A functional erosion and sediment control plan has seven sections. Some councils have templates that rearrange the order, but the content is the same. Leave one out and you will get a request for information back from the assessing officer.

1. Site description and conditions. Address, lot details, slope, existing vegetation, soil type, proximity to waterways.
2. Site plan. A scaled drawing showing boundaries, contours, stormwater paths, stockpile locations and control devices.
3. Staging and sequence. The order of works, when controls go in, when they come out.
4. Control measures. A list of every control device with locations and spec.
5. Maintenance and inspection schedule. Who checks the controls, how often, and what triggers replacement.
6. Stabilisation and rehabilitation. How disturbed areas will be reinstated once work is finished.
7. Responsibilities. Named site supervisor responsible for the plan.

Most residential ESCPs for a single block fit on two to four pages plus the site plan. A larger subdivision or commercial job runs much longer and usually needs a CPESC to sign it off.

Choosing the Right Erosion Controls

Erosion controls and sediment controls are not the same thing. Erosion controls stop soil from being dislodged in the first place. Sediment controls catch the soil that escapes. A proper plan uses both, in that order of priority.

Here are the common controls grouped by function, and when each one makes sense on a typical site.

All Stake Supply stocks all of these in trade quantities, and most ESCPs use two or three in combination. Silt socks and silt fences plus a stabilised entry cover a typical residential build.

Writing the Site Plan

The site plan is the part most assessors scan first. It needs to be scaled, clearly labelled, and readable in black and white. A hand-drawn sketch is fine for a small domestic job as long as the features are labelled and the scale is stated.

• Property boundaries and street name
• North arrow and scale bar
• Existing contours at one-metre intervals where available
• Location of every stormwater pit, kerb inlet and swale
• Direction of surface flow marked with arrows
• Building footprint and driveway location
• Stockpile locations, clearly marked and offset from drains
• Every control device with a legend symbol
• Stabilised site entry/exit point

Put the legend in one corner. Label each control device with the same naming used in the plan text. A reviewer should be able to cross-reference the drawing with the written scope without guessing.

Common Mistakes in Erosion and Sediment Control Plans

These are the mistakes that get ESCPs kicked back or that cause compliance issues on site after the plan is approved. Avoid them and your job runs smoother.

• Putting all the controls at the downstream boundary. By the time runoff gets there, it is already loaded with sediment.
• Relying on a single silt fence. Silt fences have a design life and fail in heavy rain. Use them with other measures.
• No stabilised entry. Mud tracked onto the street is the fastest way to get a compliance notice.
• Ignoring the stockpile. Uncovered topsoil stockpiles shed sediment every rain event.
• No maintenance schedule. Controls are only effective if someone inspects and empties them.
• Copying a plan from another site. Slope, soil type and drainage patterns are site-specific.

Maintenance and Inspection Schedule

Every ESCP needs a schedule for checking the controls and recording the result. Most councils want inspections done weekly, after every rainfall over 10 mm, and immediately before a weekend or shutdown.

A simple site logbook works for small jobs. For larger sites, a photo-dated inspection log is the norm. The entries should show the date, the inspector's name, the condition of each control, and any action taken.

• Weekly walk-through of all controls
• Post-rainfall inspection within 24 hours of any event over 10 mm
• Replacement of silt socks once half full
• Emptying of silt fence accumulation before it reaches one-third the fence height
• Re-mulching of stockpiles as needed
• Photos of any repair or replacement work

When You Need a CPESC-Certified Plan

For large sites, subdivisions, and anything near a waterway, the council will usually require the plan to be written or signed off by a Certified Professional in Erosion and Sediment Control. These plans cost more, take longer, and include hydrologic calculations that a standard residential ESCP does not.

If you are doing a single-block residential build, you can usually write the plan yourself using council templates. If you are on a subdivision, a commercial development, or anything that the council flags as sensitive, get a CPESC involved early. Trying to save on the consultancy fee usually costs more in rework.

Ordering the Products for Your Plan

Once the plan is approved, the next step is ordering the physical controls. All Stake Supply stocks silt fences, silt socks, jute mesh, hydromulch, sediment fence stakes, and every related product in trade quantities across Australia. Bulk pricing is available for commercial orders.

Browse the erosion and sediment control range, or contact our trade team for job-specific pricing. For background reading, the NSW Department of Climate Change, Energy, the Environment and Water publishes the official guidance document on soil and water management for urban development.