Where Excavated Soil Goes: Ontario's Excess Soil Rules
Soil that leaves your property is called excess soil, and Ontario regulates where it can go under O. Reg. 406/19, On-Site and Excess Soil Management. In plain terms, soil must be reused or taken to a site allowed to receive it, never tipped on a farm field or vacant lot without approval.
Larger projects carry the heavy paperwork. A project that sends 2,000 m³ or more of excess soil off site, roughly 250 tandem loads, generally needs a notice filed on the RPRA Excess Soil Registry, along with sampling and a tracking system before soil leaves. Properties with a higher-risk past use, such as a former gas station or industrial site, can trigger those steps at much lower volumes.
Most residential jobs, from a pool dig to a garden regrade, fall well under that threshold and are generally exempt from registry filing. They still have to follow the reuse rules, so we keep our own record for every load showing its source, destination and volume.
Reusing soil on site is almost always cheaper than hauling it. Every load that stays to build a berm or fill a low corner saves both the trucking and the tipping fee, and the province's guide to handling excess soil sets out the full rules.