Choose a Walker Industries Company Walker Industries Holdings Limited Human Resources: Careers -- Walker Brothers Quarries Vineland Quarries & Crushed Stone Ridgemount Quarries Spring Creek Aggregates Georgian Aggregates & Construction Inc Norjohn Contracting and Paving Georgian Construction Walker Brothers Asphalt -- Woodington Systems Inc Niagara Waste Systems Limited Norjohn Transfer Systems Limited -- Infrastructure Development & Management (iDM) Integrated Gas Rescovery Services(IGRS) Integrated Municipal Services(IMS) -- Norjohn Emulsions Walker Community Development Corporation

	Mailing Address Phone Duntroon Asphalt Plant P.O. Box 340 Collingwood, ON L9Y 3Z7 (705) 443-4990 Don MacLachlan Cell no. (705) 441-4580 Pager no. (705) 446-3726
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