The Voice - Summer 2021 - 49

INDUSTRY
Beneficial Reuse
of Excess Soil
at Aggregate
Pits and Quarries
A site ready to be filled with excess soil and rehabilitated.
I
n March 2021, OSPE, with support by an Excess Soil Project Steering Committee, completed a
scientific report and a report on Best Management Practices on the beneficial reuse of excess soil
at aggregate pits and quarries. The research was funded by the Ontario Ministry of Environment,
Conservation and Parks (MECP). The reports are intended to assist Qualified Persons (QPs),
municipalities, aggregate licensees, and operators in evaluating options for beneficially reusing
excess soils to rehabilitate pits and quarries in a safe, economically viable, and climate positive manner.
First, what exactly are aggregates and pits and quarries? Aggregate is an important material to the
construction and infrastructure industry. Construction aggregate, commonly referred to as sand/gravel
and crushed stone, is extracted from pits and quarries, respectively. The difference between pits and
quarries lies in the type of material extracted and, hence, the associated extraction methods. A pit is an
area from which unconsolidated aggregate, such as sand/gravel, is excavated. The product of a quarry,
on the other hand, is crushed stone (or building stone) aggregate derived from bedrock such as limestone
and granite. Unlike a pit, it is a common practice to use blasting for material extraction in a quarry.
June 2021 THE VOICE
49

The Voice - Summer 2021

Table of Contents for the Digital Edition of The Voice - Summer 2021

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The Voice - Summer 2021 - Cover1
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The Voice - Summer 2021 - Cover3
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