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Removal of topsoil and vegetation to expose the sub-soil. The amount of topsoil will vary depending on how good the land is.
A one degree fall is required across the site in order to assist drainage. On sloping sites a 'cut and fill' operation will be undertaken.
Drainage will vary from site to site. This will include lateral French drains and drains around the perimeter into a soak away or ditch.
On most sites a membrane will be laid which will help to stabilise and seal the sub soil. This will also separate the soil from the sub base material.
A layer of limestone/granite/clean hard stone is then laid and compacted. A second membrane is then laid on top of the clean stone.
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