 OPG stated that they intended to provide an assessment of the environmental effects of two technically and economically feasible geologic regions in Ontario for a new L&ILW disposal facility.This included one assessment to consider a DGR located in a sedimentary rock formation located in Southern Ontario, and one assessment to consider a DGR located in a granite rock formation in central to northern Ontario.On December 28, 2016, OPG submitted their response to the request for additional information issued by Minister McKenna.