Underwater Survey Navy Petty Officer 2nd Class Paul Dattoli conducts an underwater pier survey using ultrasonic testing tools with divers assigned to Underwater Construction Team 2 in Apra Harbor, Guam, Dec. 14, 2017. Dattoli is a diver assigned to Mobile Diving Salvage Unit 1. Navy photo by Petty Officer 1st Class Arthurgwain L. Marquez SHARE: Download: Full Size (1.67 MB) Tags: Pacific Command, Asia-Pacific Rebalance, Sailors, training, Navy, Pacom Credit: Petty Officer 1st Class Arthurgwain L. Marquez VIRIN: 171214-N-CW570-0273A.JPG Photo Gallery