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The SOiiL soil matching registry is driven by the use and adoption of the Ontario Ministry of the Environment's "Management of Excess Soil - A Guide for Best Management Practices."

This registry is based on a similar soil matching registry database model developed by CL:AIRE in the United Kingdom. The CL:AIRE register of materials requires the use of the practices outlined in their CL:AIRE Definition of Waste: Code of Practice (CoP). A copy of this industry CoP and access to their register of materials is available here.

SOiiL is an independent entity designed to support the construction and development sectors in Ontario. In addition to encouraging the adoption of regulatory and industry best management practices (BMPs), SOiiL matches soil donors and soil receivers to facilitate efficiencies and cost savings in construction projects involving the movement of excess soils. As a trusted, independent administrator of the soil-matching database, SOiiL treats all submitted company information and soil data in confidence strictly as an honest broker.


The fundamental premise involved is to identify excess soils that can be sustainably and beneficially reused appropriately at other sites and development projects in an approved safe, efficient, transparent and environmentally responsible manner.

For soil matching to be effective, both potential soil generators and soil-receiving site users must register with SOiiL in advance to confirm participation in the program. This is done through completing and submitting a SOiiL user registration form at no cost.

When future potential projects or opportunities become known involving excess soils, either the donating of surplus soil or the receiving surplus soil, a submission of the pertinent soil information requirements is made to SOiiL using an online submission template.


SOiiL will review the information provided and post the information in the secure SOiiL registry database. Where there appears to be a soil-matching opportunity, SOiiL will contact the companies involved and advise them of a possible soil match. These companies then in turn will contact each other to make a business or contractual arrangement regarding a possible soil matching arrangement.

If a potential opportunity or soil match for excess soils is found, a project partnership is then established between the two parties involved. This partnership arrangement is solely between the two parties involved and SOiiL plays no other role other than co-coordinating and facilitating the initial matching. Project partners then conduct their own due diligence and enter into a contractual business arrangement per company practices. SOiiL is not involved in these business arrangements after initial matching opportunities have been identified.

On a regular basis, typically monthly, an update is made of all user submitted soil information, both generating and receiving sites, on the SOiiL website and an email update is sent out to all registered users of posted soil information.