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92% to 98% of water handled at a quarry is returned to the local watershed. Read more.

Minister McGarry, second from left, provided welcoming remarks at the OSSGA 2016 Rehabilitation Tour.  With Steve Bisson, Mayor Gerri Lynn O'Connor, and Norm Cheesman.

OSSGA offers a full range of training programs, tours, seminars and events for everyone in the aggregates industry. The 2016/2017 OSSGA training brochure is now available, click here!

Many of our member companies offer public tours of their aggregate production facilities. Click on the link below to find out how to contact them.

Upcoming Events

Tuesday, January 24, 2017 at 8:30 AM OSSGA Aggregates 101 Training in Mississauga

Marriott Toronto Airport Hotel, Mississauga, ON

Wednesday, January 25, 2017 OSSGA Operations, Health & Safety Seminar

Click Here to book your hotel room Marriott Toronto Airport Hotel

Click Here to view the Brochure for 2017


Monday, March 27, 2017 Generic Supervisor Training Course

OSSGA Office, Mississauga, ON

Thursday, March 30, 2017 at 9:00 AM OSSGA Common Core Training Course

OSSGA Office, Mississauga, ON

Monday, October 16, 2017 at 8:00 AM OSSGA South Carolina Technical Tour


Minister Kathleen McGarry stood in the House today to introduce the long awaited Aggregate Resources and Mining Modernization Act (ARMMA), a bill the government is putting forward to amend and modernize both the Aggregate Resources Act (ARA) and Mining Act.
OSSGA Hiring! July 15, 2016 at 11:14 AM
OSSGA is seeking a Manager of Specifications & Standards with a minimum of 7-10 years' experience and a solid understanding of aggregates, concrete and related products, and their applications. An understanding of the world of standards and specifications and how they are used in various projects; a background in QC; and actual experience in testing materials, are also desirable.
This document provides an overview of the proposed changes to the four plans. The proposed revised plans (see below) contain the revised policies and should be consulted for precise wording.
Aggregate Resources Act
Official Plan Guide for Producers
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Bronze Plaque Award