Bronze Plaque Award

Upcoming Events

Thursday, April 27, 2017 at 9:00 AM OSSGA Common Core Surface Miner Training

OSSGA Office, Mississauga

Tuesday, May 2, 2017 at 8:30 AM OSSGA Quality Control Training

Lafarge Dundas, Only 12 spots available

Tuesday, May 9, 2017 at 9:30 AM OSSGA Aggregates 101 Training in Mississauga

OSSGA Office, Mississauga

Wednesday, May 10, 2017 at 9:30 AM OSSGA Aggregates 201 Training

OSSGA Office, Mississauga

Thursday, May 18, 2017 at 9:00 AM OSSGA Common Core Training Course
OSSGA Office, Mississauga, ON
Thursday, July 6, 2017 OSSGA Golf Tournament

Registration will open May 1st.

Cardinal Golf Club


The Hole Story

Our Organizational Structure

The Ontario Stone, Sand & Gravel Association is directed by elected Officers and a Board of Directors. Association committees, comprised of volunteers, complement the services provided to the membership. The CEO and staff handle the routine business affairs of the Association and regularly report to the Board.


  • Chair of the Board: Dan O'Hara, CRH Canada Group Inc. 
  • Vice Chair of the Board: Bill Marquardt, CBM Aggregates
  • Secretary: Mark Geens, Lafarge Holcim Canada Inc.
  • Treasurer: Quinn Moyer, Nelson Aggregate Co.
  • Immediate Past Chair of the Board: Steven Bisson, Nelson Aggregate Co.
  • Executive Director:  Norman Cheesman  (Ex Officio Board Member)


Active Directors  

  • Scott Berquist, R.W. Tomlinson
  • Xavier Guesnu, Lafarge Holcim Canada Inc.
  • David Hanratty, CBM Aggregates
  • Bill Kester, Waterford Sand & Gravel
  • George Lourenco, Capital Paving
  • Ed Persico, CRH Canada Group Inc.
  • Erwin Schulz, Aecon Construction & Materials
  • Jim Thomas, Coco Group
  • Ryan Wall, Walker Industries
  • Scott Boyle , Miller Group


Associate Directors

  • Angelo Muscillo, Bulk Transfer Systems
  • Heather Melcher, Golder Associates Ltd.
  • Darrin Rousselle, Kal Tire
  • David White, Devry Smith Frank LLP

Active Past Chairs

  • Malcolm Croskery (2014), Pioneer Construction
  • Ryan Essex (2013), Miller Paving
  • Terry Waites (2011), JC Rock Ltd.
  • James Gordon (2015), Fowler Construction