JOINT BASE PEARL HARBOR-HICKAM (Feb. 29, 2024) A Navy contractor and engineer examines the inside of a water heater at the Seabee warehouse on Joint Base Pearl Harbor-Hickam (JBPHH), Hawaii, Feb. 29, 2024. Dismantling the water heater is part of a Navy Region Hawaii investigation into potential causes for low-level detections of Total Petroleum Hydrocarbons in the JBPHH drinking water system. (U.S. Navy photo by Mass Communication Specialist Seaman Krystal Diaz)