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Classifying waste for disposal at La Collette

About waste classification

Before you can dispose of your waste at La Collette you must carry out testing against the site-specific Waste Acceptance Criteria (WAC) to demonstrate:

  • composition
  • categorisation
  • leachability (how easy harmful substances can be removed from your waste)

Classification ensures that we process your waste in the most environmentally way possible.

It may be an offence under the Waste Management (Jersey) Law 2005 not to provide the right classification for your waste.

What we do with your waste

We use inert waste that cannot be recovered, as secondary construction material for reclaiming land. Other waste that do not meet the inert criteria may be placed in specially engineered containment. If your waste is hazardous, it's likely that it'll need treatment before we can accept it.

Inert wastes are materials that will not decompose, degrade or chemically react. This includes non-contaminated:

  • sand
  • stones
  • concrete
  • ceramic

Non-inert wastes are these materials but that are contaminated or hazardous.

When to classify your waste

You need to carry out testing to classify your waste for disposal at La Collette if:

  • your waste is made of or contains top or subsoils
  • your project generates more than 100 tonnes of soil waste
  • you have smaller amounts of waste showing signs of contamination, including an oily sheen or a bad smell

We'll not accept waste arriving at La Collette without test results.

We recommend that you carry out testing at the start of your project. Testing results can delay your project, especially if your waste needs treatment before you can dispose of it.

Classifying your waste

Divide your site into grid squares of 10 meters by 10 meters. Take 1 sample from each square at every meter depth of the planned excavation.

There are 2 types of tests needed on the samples:

Composition testing

The composition test identifies harmful substances in your waste for example, heavy metals or asbestos. The results:

  • tell us if your waste has hazardous properties
  • determine how we'll handle your waste
  • determine if your waste need to be treated before disposal

Leach testing

Results from leach testing tell us how easy it is to release harmful substances from your waste.

You can carry out composition and leach testing at the same time. You cannot use leaching results to define if your waste is hazardous or not.

Waste Acceptance Criteria (WAC)

Follow the process on the WAC flow chart to dispose of your waste at La Collette.

WAC flow chart

If results from your composition testing say that your waste is non-hazardous, check the leach results against the table in the Inert WAC.

Inert WAC

If results of your composition testing say that your waste is hazardous, check all results against the Non-inert WAC. If your leach testing exceeds the limits in the inert WAC, check the leach results against the Non-inert WAC..

Non-inert WAC

If results from your composition testing say your waste is hazardous due to asbestos content, check the leach results against the Asbestos WAC.

Asbestos WAC

Commercial asbestos disposal

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