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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

Thursday, September 15, 2016 at 10:00 AM OSSGA and MOECC Environmental Approvals Go Paperless and More Workshop

OSSGA Office, Mississauga, ON

Thursday, September 22, 2016 OSSGA Operations Tour

Oshawa Region

Thursday, October 6, 2016 at 8:30 AM OSSGA Sales and Marketing Workshop and Golf

Glen House Resort, Gananoque, Ontario

Tuesday, October 18, 2016 at 9:00 AM OSSGA Aggregates 101 Training in Mississauga

OSSGA Office, Mississauga, ON

Wednesday, November 2, 2016 at 9:00 AM OSSGA Aggregates 101 Training in Sudbury

Sudbury, Ontario

Monday, November 14, 2016 Generic Supervisor Training Course

OSSGA Office, Mississauga, ON


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.
OSSGA Announces New Executive Director April 18, 2016 at 11:45 AM
The Board of Directors of the Ontario Stone, Sand & Gravel Association is pleased to announce the appointment of Norman Cheesman as Executive Director, effective April 18, 2016.
Aggregate Resources Act
Official Plan Guide for Producers
Why join OSSGA?
Bronze Plaque Award