Here are links to the actual documentation – read for yourself:

The 2008 Overview and Analysis for a National Marine Sanctuary Program:
http://www.wisconsinshipwrecks.org/Files/Wisconsins%20Historic%20Shipwrecks.pdf

The 2014 Lake Michigan Wisconsin National Sanctuary Proposal:
https://nmsnominate2.blob.core.windows.net/nominate2-prod/media/documents/nomination_lake_michigan_wisconsin.pdf

The 2016 Draft Environmental Impact Statement and Draft Management Plan:
http://sanctuaries.noaa.gov/wisconsin/wisconsin-proposed-deis-dmp.pdf

Press release for the ten-fold expansion of Thunder Bay National Marine Sanctuary:
http://sanctuaries.noaa.gov/news/press/2014/pr090514.html

Fed Register 1/9/2017; Federal Register Vol. 82, No. 5 Monday, January 9, 2017
Proposed Rules for Wisconsin Lake Michigan Sanctuary, Subpart T, page 2269:
https://nmssanctuaries.blob.core.windows.net/sanctuaries-prod/media/archive/management/fr/82-fr-2269-wlmnms_proposedrule_010917.pdf

The Perils of Approving a Marine Sanctuary
https://calcoastnews.com/2017/02/perils-approving-marine-sanctuary/