Earth Day Efforts Explained... Capt. Jeffrey Bitterman Naval Hospital Bremerton commanding officer (right) receives details on the command’s commitment to environmental stewardship that has set the a standard of excellence well beyond the established norm. Briefed by Lt. Erwin Rodriguez, NHB Facilities Manager engineering manager (left) and Ramon Calantas, NHB environmental protection specialist (back), NHB dental clinics have been a model of conservation consistency by keeping toxic metals - including 68 pounds of mercury - from dental wastewater out of Puget Sound for the past 15 years (Official Navy photo by Douglas H Stutz, Naval Hospital Bremerton Public Affairs).