Upcoming Events

Thursday, April 29, 2021 at 9:00 AM ONLINE OSSGA Common Core Training Course
OSSGA Office, Mississauga, ON
Wednesday, May 26, 2021 at 9:00 AM ONLINE - OSSGA Common Core Training Course
Friday, October 1, 2021 at 9:00 AM OSSGA Quality Control Training - IN PERSON

Codrington - Only 7 spots!

Monday, October 18, 2021 ONLINE - OSSGA Aggregates 101
Wednesday, October 20, 2021 IN-PERSON OSSGA Operations Tour

Niagara Falls, Ontario

Gravel Facts

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 Executive Director and staff handle the routine business affairs of the Association and regularly report to the Board.


  • Chair of the Board: Scott Boyle, Miller Group
  • Vice Chair of the Board: Ryan Wall, Walker Industries
  • Treasurer/Secretary: Anson Lê, Rice Aggregates Limited
  • Immediate Past Chair of the Board: George Lourenco, Capital Paving
  • Executive Director:  Norman Cheesman  (ex-officio Board Member)

Active Directors  

  • Mike Andrighetti, Ethier Sand & Gravel Limited
  • Ron Brent, Brent Quarries
  • David Hanratty, CBM Aggregates
  • Frank Kielbowich, Walker Industries
  • John Mackay, Aecon Construction & Materials
  • Dwayne McKenzie, Nelson Aggregate Co.
  • Jim Petrella, Dufferin Aggregates, a Division of CRH Canada Group Inc.
  • Rob Pierce, R.W. Tomlinson
  • Matthew Ruggieri , Lafarge Holcim Canada Inc.  
  • Ken Zimmerman, Miller Group

Associate Directors

  • John Buhlman, WeirFoulds, LLP
  • Heather Melcher, Golder Associates Ltd. (ex-officio)
  • Angelo Muscillo, Bulk Transfer Systems (ex-officio)
  • Jim Thornton, Toromont CAT
  • Tecia White, Whitewater Hydrogeology Ltd.

Active Past Chair

  • Quinn Moyer, Nelson Aggregate Co