Thumbing through the pages of his chartreuse logbook where he writes down thoughts, project plans and drawings, Capt. Antonio Pazos stops to point out a particular drawing. It’s a rough sketch diagram of how the U.S. Army Corps of Engineers and federal and state engineers designed a dewatering plan to remove 400 million gallons of water from the Brooklyn Battery and Queens tunnels after Hurricane Sandy slammed into the East Coast Oct.29, 2012.