Retired geoscientist Dr. Larry Jensen addresses the issue of licensed aggregate reserves and provides some recommendations to balance current reserves with required reserves.

As he states in his paper "It is of great importance to Ontario that the ARA is able to manage its need for aggregate reserves in an efficient manner that serves the province’s needs for balance and sustainability. Over licensing of aggregate reserves can be just as harmful as under licensing of aggregate reserves to Ontario’s well-being and economy." 

Dr. Jensen's full report can be found here.