Referral Response: Bylaw 9861 – Greenhouses with Concrete Footings

Careful management of existing native soil on farmland is critical to being able to undertake viable soil-based fa1ming over the long-term. Large commercial greenhouses can negatively impact the soil capability ofland and limit the ability to undertake soil-based farming in the future. Negative impacts to the native soil and agricultural capability of the land may arise as follows: • Land and site preparation activities needed in advance of construction of buildings, including removal of existing native soil and required fill activities. • The actual buildings and structures, concrete slabs/footing, and other infrastructure that become pennanent fixtures on farmland with no provision for removal of the structure and site remediation at the end of the building life span. • Resulting compaction of the underlying sub-soils. Land preparation works intended to support agricultural buildings and commercial greenhouses typically result in full removal of the native soil to level the site to enable installation of concrete footings and slabs on harder ground to supp01i the building. Native soil removal, in conjunction with construction of agricultural buildings with impe1meable surfaces, can also have impacts on stonnwater drainage. This may have considerable negative impacts on the agricultural capability of the soil for large areas around the agricultural building unless substantial infrastructure and capital investment is implemented by the farmer to manage on-site drainage.

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