Another CG Patrol vessel Snuck in to tie up at the Dartmouth Coast Guard Base. I believe this one to be the CCGS E.P. LE QUÉBÉCOIS
Update:
Better Photo
Update 2:
She departed, and returned today around Noon.
Halifax Shipping News.ca
Comings and Goings In Halifax Harbour
You are right – that's what it is.
It must have arrived about the time that Louis M. Lauzier arrived.
It was at the CG base on July 13, and maybe before that.
Mac