With respect to naturally…

With respect to naturally occurring local background concentrations, I understand the proposed regional mapping will be addressed at a later date. I see the value in the mapping but acknowledge it could be time consuming to prepare (municipality & consultants). Is there an outline of what is required for the study to support the mapping approach? In my region there is likely naturally occurring PHC F2 (at depth), and understanding what the MECP requires would assist in assessing the viability of completing the study.